捕获的提炼金属

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205227. （2021•长安区一中•高二上期末） Captured（捕获的）carbon dioxide（CO₂）could be used to extract（提炼）useful metals（金属）from recycled technology such as smartphone batteries rather than just being buried underground.The technique could help make it more economical to capture the greenhouse gas before it enters the atmosphere.
   "If you also extract metals by filling CO₂，you add value to a process that is known to be costly，" says Julien Leclaire at the University of Lyon，France.
   CO₂ is the main cause of modern climate change，so many people have attempted to develop technologies to capture it when it comes from power plants and other major sources.The gas can then be stored underground.The problem is that such carbon capture and storage（CCS）is expensive."No one wants to pay the price for it，" says Leclaire.
   To make CCS more appealing，Leclaire's team has found a use for the gas.
   His team collected CO₂ from a car gas，cooledit，then pumped it into a mix of chemicals.
   The CO₂combined with the mix to make many molecules（分子）of variouapes and sizes.
   The team found that this process could sort out mixtures of metals，because one metal would dissolve（溶解）in the liquid while another would form a solid.In a series of experiments，they successfully separated three kinds of metals-all of which are used in batteries，smart phones and computers.
   If the process can be widely used，it could be a more environmentally friendly way to recycle batteries and other electrical equipment，says Leclaire.This is normally done using highly reactive chemicals，which are potentially polluting.Replacing them with CO₂ should lead to a much lower environmental pollution，he says.
   Other researchers and companies are trying to change captured CO₂ into useful materials like plastics，which are normally produced from petrol，but this is chemically difficult.Leclaire says his approach is more inline with how CO₂ behaves naturally."Instead of copying what we know how to do better and cheaper with oil，let's find things you can only do with CO₂，" he says.

（1）What can we learn from the first paragraph？
A．Extracting useful metals from recycled technology is widely used now.
B．Useful metals in the atmosphere are used to make smart phone batteries.
C．Abandoned smart phone batteries may have been buried underground before.
D．The greenhouse gas CO₂ could be cleaned up after entering the atmosphere.
（2）Why are many people attempting to capture CO₂？
A．CO₂ is the main cause of modern climate change.
B．CO₂ can be used to recycle many resources.
C．Captured CO₂ can be changed to useful gas.
D．CO₂ is harmful to people's health.
（3）What benefit could Leclaire's team's approach bring？
A．It could end the use of plastics.
B．It could reduce environmental pollution.
C．It could make more metals available to humans.
D．It could help reduce the cost of battery production.
（4）What is the best title for the text？
A．The Ways to Make Smart phone Batteries
B．The Reason for Capturing Greenhouse Gas
C．Collecting CO₂ Is Starting to Make New Progress
D．Captured CO₂ Could Be Used to Help Recycle Useful Metals

共享时间:2021-02-07 难度:1

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说明文，

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CABD

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（1）C.推理判断题。根据第一段Captured（捕获的）carbon dioxide（CO₂）could be used to extract（提炼）useful metals（金属）from recycled technology such as smartphone batteries rather than just being buried underground.（捕获的二氧化碳可用于从智能手机电池等回收技术中提取有用的金属，而不仅仅是埋在地下。）可知，废弃的智能手机电池以前可能埋在地下，故选C.
（2）A.细节理解题。根据第三段CO₂ is the main cause of modern climate change，so many people have attempted to develop technologies to capture it when it comes from power plants and other major sources.（二氧化碳是现代气候变化的主要原因，因此许多人试图开发技术来捕获来自发电厂和其他主要来源的二氧化碳）可知，很多人试图捕获二氧化碳，因为二氧化碳是现代气候变化的主要原因，故选A.
（3）B.细节理解题。根据倒数第二段中的This is normally done using highly reactive chemicals，which are potentially polluting.Replacing them with CO₂should lead to a much lower environmental pollution，he says.（这通常是通过使用高活性的化学物质来实现的，这些化学物质具有潜在的污染，他说用二氧化碳取代它们应该会大大降低环境污染）可知，该团队的办法将会极大的减少环境污染，故选B.
（4）D.标题归纳题。根据第一段Captured（捕获的）carbon dioxide（CO₂）could be used to extract（提炼）useful metals（金属）from recycled technology such as smartphone batteries rather than just being buried underground.The technique could help make it more economical to capture the greenhouse gas before it enters the atmosphere.（捕获的二氧化碳可用于从回收技术（如智能手机电池）中提取有用的金属，而不仅仅是埋在地下。这项技术有助于在温室气体进入大气层之前更经济地捕获它们）可知，文章主要讲述了法国里昂大学Leclaire和他的团队发现了捕捉到的二氧化碳的一个用处就是区分金属混合物，使得回收电池和其他设备更环保，大大降低环境污染。选项D.Captured CO₂Could Be Used to Help Recycle Useful Metals﹣捕获的二氧化碳可以用来帮助回收有用的金属，符合文意，故选D.

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202806. （2020•西安中学•三模） Cells in our brain usually send "stop eating" signal when we've had enough．But after mice ate fatty foods for just two weeks，their brains' brake on overeating quieted down．That finding may help explain the complex link between food and appetite that can become disordered when people overeat．
   Food is essential to life．Our brains have，therefore，evolved a series of systems to make sure we eat enough．Garret Stuber，a neuroscientist at the University of Washington，together with his team took aim at one brain area known to be involved in eating behaviors．
   This lateral hypothalamus （下丘脑外侧区） contains many diverse cells Stuber's group looked at the behaviors of genes in the cells here．And in one type-glutamatergic nerve （谷氨酸能神经） cells-big differences appear between fat mice and lean ones．
   Earlier work by Stuber's group had suggested that these cells act like a brake on eating．When the researchers prevented these cells from firing，mice suddenly overate．They also fattened up．But it wasn't clear how the cells' activity changed as the mice transitioned from slim to fat．
   "Obesity doesn't just happen overnight，" notes Stuber．To find out the secret，his group undertook a new study．They fed mice high-fat food．Now and again，they'd use a fancy microscope to look at how well the animals' glutamatergic cells could fire off signals．
   Two weeks into the high-fat food-even before the mice became round - the activity of these nerve cells had slowed．It continued as the animals grew larger over a 12-week period． "The cells' activity was going down as a function of high-fat diet．The results suggest that the high-fat diet is removing the brake on eating and obesity，" explains Stuber．
   It's hard to say whether similar cells normally control people's appetite．Brain-imaging tests have shown that the same brain region -the hypothalamus-plays a role when people shift between hunger and feeling full．

（1）What happened after the mice ate fatty foods for two weeks？
A．Their appetite was getting worse．
B．Their brains became disordered．
C．They refused to eat zero fat food．
D．They lacked a feeling of fullness．
（2）It can be learned from the text that glutamatergic nerve cells       ．
A．are easily found in lean mice
B．can prevent mice from overeating
C．function well under any condition
D．are a main part of lateral hypothalamus
（3）Why did Stuber's group undertake the new study？
A．To study the role of glutamatergic cells in mice's fattening up．
B．To find out the link between high-fat diets and obesity．
C．To find out deciding factors in mice's appetite．
D．To study the eating habit of fat mice．
（4）What is the main idea of the text？
A．Obesity influences glutamatergic nerves' function．
B．Glutamatergic nerves decide people's appetite．
C．High-fat diets lead to overeating．
D．Our brains control our food choices．

共享时间:2020-04-08 难度:1 相似度:2

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206073. （2016•七十中•高二下期末） No one can change the weather．Nobody can control the weather．But if we read correctly the signs around us，we can tell what the more important changes in the weather will be．This way of telling what the weather will be like on the following day or two is called weather forecasting．
For many centuries and in all countries，people have studied the weather and tried to make weather forecasting．Rings around the sun are a sign of coming rain．That many people feel their joints（关节） hurt is a sign of wet weather．Some birds fly high if the weather is fine，but they fly near the ground if rainy or stormy weather is on the way．If you see a rainbow during rainy weather，this is a sign that the weather will become clear and fine．Such rainbows come in the evening．If the stars twinkle clearly at night，then fine weather will continue．If a fog appears in the morning just above a river，then the day will be warm．If the sunset is mostly red in color，then the following day will be fine．If a rainbow appears in the morning，rainy weather will probably come．
Most of the above sayings have been made by the people who have used their eyes and brains to make weather forecasting．
（1）Which is true about weather forecasting？
A．Weather forecasting is a way of telling what the weather will be like．
B．Weather forecasting is a report about the weather．
C．Weather forecasting is a sign of coming rain．
D．People can change the weather forecasting．
（2）Which of the following can be used here to replace the underlined phrase"on the way"？
A．continuing
B．reducing．
C．coming．
D．disappearing．
（3）Which of the following signs can tell the weather will probably be rainy？
A．Some birds fly high．
B．A rainbow appears in the morning．
C．The sunset is mostly red in color．
D．Fogs appear in the morning just above a river．
（4）The best title of the passage is       ．
A．Weather forecasting plays an important role in our life
B．Weather forecasting can bring people some signs of weather
C．Weather is forecasted only by eyes and brains．
D．People can predict weather by experience in daily life．

共享时间:2016-07-21 难度:1 相似度:2

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205640. （2018•西安中学•高一下期末） Imagine，one day，getting out of bed in Beijing and being at your office in Shanghai in only a couple of hours，and then，after a full day of work，going back home to Beijing and having dinner there．
   Sounds unusual，doesn't it？But it's not that unrealistic，with the development of China's high-speed railway system．And that's not all．China has an even greater high-speed railway plan to connect the country with Southeast Asia，and eventually Eastern Europe．China is negotiating to extend its own high-speed railway network to up to 17 countries in 10 to 15 years，eventually reaching London and Singapore．
   China has proposed three such projects．The first would possibly connect Kunming with Singapore via Vietnam and Malaysia．Another could start in Urumqi and go through Kazakhstan and Uzbekistan，and possibly to Germany．The third would start in the northeast and go north through Russia and then into Western Europe．The new system would still follow China's high-speed railway standard．And the trains would be able to go 346 kilometers an hour，almost as fast as some airplanes．Of course，there are some technical challenges to overcome．There are so many issues that need to be settled，such as safety，rail gauge（轨距），maintenance of railway tracks．But the key issue is really money．China is already spending hundreds of billions of yuan on domestic railway expansion．
   China prefers that the other countries pay in natural resources rather than with capital investment．Resources from those countries could stream into China to sustain development．It'll be a win-win project．For other countries，the railway network will definitely create more opportunities for business，tourism and so on，not to mention the better communication among those countries．
   For China，such a project would not only connect it with the rest of Asia and bring some much-needed resources，but would also help develop China's far west．We foresee that in the coming decades，millions of people will migrate to the western regions，where the land is empty and resources unused．With high-speed trains，people will set up factories and business centers in the west once and for all．And they'll trade with Central Asian and Eastern European countries．

（1）According to the passage，the greatest challenge to the new high-speed railway plan is        ．
A．technical issues
B．safety of the system
C．financial problems
D．maintenance of railway tracks
（2）China's new high-speed railway plan will be a win-win project because        ．
A．China will get much-needed resources and develop its western regions．
B．China and the countries involved will benefit from the project in various ways．
C．China will develop its railway system and communication with other countries．
D．The foreign countries involved will develop their railway transportation，business and tourism．
（3）Which of the following words best describes the author's attitude towards China's high-speed railway plan？
A．Critical．
B．Reserved．
C．Doubtful．
D．Positive．
（4）Which of the following might be the best title for the passage？
A．New Railway Standards
B．Big Railway Dreams
C．High-speed Bullet Trains
D．International Railway Network

共享时间:2018-07-23 难度:1 相似度:2

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205668. （2018•西安中学•高一上期末） After years of heated debate，gray wolves were reintroduced to Yellowstone National Park．Fourteen wolves were caught in Canada and transported to the park．By last year，the Yellowstone wolf population had grown to more than 170 wolves．
Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States，but they were gradually displaced by human development．By the 1920s，wolves had disappeared from the Yellowstone area．They went farther north into the deep forests of Canada，where there were fewer humans around．
The disappearance of the wolves had many unexpected results．Deer and elk populations - major food sources （来源） for the wolf - grew rapidly．These animals consumed （消耗） large amounts of vegetation （植被），which reduced plant diversity （多样性） in the park．In the absence of wolves，coyote populations also grew quickly．The coyotes killed a large percentage of the park's red foxes，and completely drove away the park's beavers．
As early as 1966，biologists asked the government to consider reintroducing wolves to Yellowstone Park．They hoped that wolves would be able to control the elk and coyote problems．Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets．
The government spent nearly 30 years coming up with a plan to reintroduce the wolves．The U．S．Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone．Today，the debate continues over how well the gray wolf is fitting in at Yellowstone．Elk，deer，and coyote populations are down，while beavers and red foxes have made a comeback．The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well．

（1）What is the text mainly about？
A．Wildlife research in the United States．
B．Plant diversity in the Yellowstone area．
C．The conflict between farmers and gray wolves．
D．The reintroduction of wolves to Yellowstone Park．
（2）What does the underlined word "displaced" in paragraph 2 mean？
A．Tested．
B．Separated．
C．Forced out．
D．Tracked down．
（3）What has caused the disappearance of gray wolves？
A．Damage to local ecology．
B．A drop in the park's income．
C．Protection of vegetation．
D．An increase in the diversity of animals．
（4）What is the author's attitude towards the Yellowstone wolf project？
A．Doubtful．
B．Positive．
C．Unfavorable．
D．Uncaring．

共享时间:2018-02-26 难度:1 相似度:2

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205695. （2018•西安中学•高二下期末） Summer heat can be dangerous，and heat leads to tragedy far too often．According to kidsandcars.org，an average of 37 young children per year die of car heat in the US，when they are accidentally left in a hot vehicle．
   For Bishop Curry，a fifth grader from McKinney，Texas，one such incident hit close to home．A six-month-old baby from his neighborhood died after hours in a hot car．After hearing about her death，Curry decided that something needed to be done．Young Curry，who turned 11 this year，has always had a knack for inventing things，and he drew up a sketch（草图） of a device he called "Oasis．"
   The device would attach to car seats and watch the temperature inside the car．If it reached a certain temperature in the car，and the device sensed a child in the car seat，it would begin to circulate cool air．Curry also designs the device using GPS and Wi-Fi technology，which would alarm the child's parents and，if there was no response from them，the police．
   Curry's father believes that the invention has potential． "The cool thing about Bishop's thinking is none of this technology is new，" he said． "We feel like the way he's thinking and combining all these technologies will get to production faster．" His father even introduced the device to Toyota，where he works as an engineer．The company was so impressed that they sent Curry and his father to a car safety conference in Michigan．
   In January，Curry's father launched a campaign for the invention．They hope to raise money to finalize the patent，build models，and find a manufacturer．Their goal was＄20，000，but so many people believed in Oasis' potential that they have raised more than twice that--over＄46，000．
   Curry's father remembers the first time he saw his son's sketch． "I was so proud of him for thinking of a solution，" he said． "We always just complain about things and rarely offer solutions．"

（1）What inspired Curry to invent Oasis？
A．His narrow escape from death after being locked in a car．
B．His knowledge of many children's death because of car heat．
C．The death of his neighbor's baby after being left in a hot car．
D．The injury of 37 children in his school in a car accident．
（2）What would Oasis do if it was hot in a car with a child？
A．It would inform the parents or even the police．
B．It would pump out the hot air in the car．
C．It would sound the alarm attached to the car．
D．It would get the window open to save the child．
（3）What does Curry's father think is cool about Curry's invention？
A．It used some of the most advanced technology．
B．It simply combined technologies that existed．
C．It could accelerate production of new technology．
D．It is the most advanced among similar products．
（4）Why did Curry's father start a campaign to raise money？
A．To conduct experiments to test the invention．
B．To get other children devoted to inventions．
C．To support a charity of medical aid for children．
D．To get the patent and bring it to production．

共享时间:2018-07-30 难度:1 相似度:2

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205754. （2018•西安一中•高一上期末） The most popular PE class at Waukegan High School in Illinois，US，takes place in a basement field house．
It is the school's version of CrossFit，the difficult physical exercise that has exploded in popularity over the last 16 years at thousands of gyms．It has more than one million devotees（爱好者） and a professional competition shown on ESPN．
Schools around the Chicago area have adopted CrossFit to interest students at a time of a rising weight problem among young people，and most say it really works compared with traditional gym classes．
"I think it's a great way to teach kids lifelong fitness，especially those kids who aren't interested in hockey（曲棍球），soccer or basketball，"said the teacher，Tracy Haraf from Illinois' Stony Creek Elementary，which devotes half of its PE days to CrossFit exercises． "They think it's tough，but I think they have a lot of fun doing it．"
Senior Alexus Wiltz，18，said the workout had improved her performance on the basketball court．"I noticed I was faster．I paid more attention on the court，my defending was better，"she said after a recent class．"It just really helped me．"
But some doctors and researchers advise caution，saying the exercises that involve lifting weights can lead to injuries，particularly when performed by few inexperienced people．
Doctor Craig Finlayson at Lurie Children's Hospital of Chicago said he was worried that while strength training is fine for kids，heavy weights could be trouble for teenagers who might hurt themselves by trying to do too much or using poor form．
CrossFit Inc，the company that certifies（证明） trainers and licenses gyms，disagrees that its program is more dangerous than other fitness routines．Gym teachers in Waukegan's Greg Moisio，whose two-campus school has about 73%kids taking CrossFit each day，also say the risk of injury can be reduced with proper teaching and CrossFit's flexibility（灵活性）．

（1）Why have schools around the Chicago area adopted CrossFit？
A．To improve students' performance in competitive sports．
B．To introduce something more challenging to the students．
C．To help solve the students' weight problem．
D．To make traditional gym classes more attractive．
（2）How do the students react to the strength training？
A．The majority believe it's effective．
B．They show little interest in it．
C．73%agree it has a bad influence．
D．Most of them think it's of no use．
（3）What does the underlined word"workout"in Paragraph 5 refer to？
A．Wiltz's performance．
B．The basketball court．
C．The physical exercise．
D．A lot of fun．
（4）What can we learn from the last paragraph？
A．CrossFit is more dangerous than other fitness routines．
B．The number of the injured in CrossFit classes is rising．
C．A great number of kids taking CrossFit lack flexibility．
D．Kids may protect themselves if they're trained properly．

共享时间:2018-02-23 难度:1 相似度:2

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202538. （2021•西安中学•八模） $德优题库$ China's Tianwen 1 Mars probe （探测器） conducted its fourth orbital correction on Friday evening，as the spacecraft makes ready for its arrival in orbit around Feb.10，according to the China National Space Administration.
   The name comes from the long poem Tianwen，meaning Heavenly Questions or Questions to Heaven，written by Qu Yuan，one of the greatest poets of ancient China.In Tianwen，this name conveys the Chinese nation's steady effort in pursuing truth and culture of exploring nature and the universe.CNSA also unveiled（发布）the logo of China's planetary exploration missions，featuring the letter C，signifying China，international cooperation and capacity of entering space.
   Tianwen 1 has flown for 197 days and more than 465 million kilometers on its journey to the planet.It is now around 184 million km from Earth and 1.1 million km from Mars.Depending on the two planets' orbits，Mars is between 55 and 400 million km from Earth.Mars probe Tianwen 1 is seen in its first selfies in space on Oct.1，2020.The administration also published a black-and-white picture of Mars taken by Tianwen 1，the first snapshot （抓拍的照片）from the Chinese craft.
   Tianwen 1，the country's first independent Mars mission，was launched by a Long March 5 heavy-lift carrier rocket on July 23 from the Wenchang Space Launch Center in Hainan province，kicking off the nation's planetary exploration program.
   A successful landing would make China only the second nation to place a spacecraft on the Martian planet.China would also be the first to successfully orbit，land and deploy（部署）a vehicle in the same mission.According to experts，searching for signs of life on Mars will be the first and foremost scientific goal.China is open and inclusive in the development of its space technology not least because it believes that the exploration of outer space should help build a community with a shared future for mankind.

（1）Why is Qu Yuan's poem mentioned in the text？
A．To tell the origin of space exploration.
B．To describe space exploration vividly.
C．To highlight the importance of space exploration.
D．To show Chinese continuous struggle in space exploration.
（2）The main idea of Paragraph 3 is about Tianwen 1's         .
A．function
B．development
C．operation
D．structure
（3）What is the essential goal of exploring Mars？
A．To build a common future for man.
B．To prove our achievement in space research.
C．To discover signs of life on this planet.
D．To expand the understanding of the space.
（4）What can we learn from the text？
A．Letter C Logo symbolizes creation between countries.
B．China was the first nation to land a spacecraft on Mars.
C．Tianwen 1 made its fifth orbital correction around Feb.10.
D．Tianwen 1 started a new chapter in Chinese planetary exploration.

共享时间:2021-06-18 难度:1 相似度:2

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205098. （2022•蓝田县•高二下期末） The amount of plastic pollution in the oceans is rapidly increasing.This is problematic，as at least 700 kinds of ocean animals-including sharks，whales，seabirds and turtles --can become caught in the stuff or mistake it for a tasty snack.
   While we know that some ocean animals seem to catch plastic because it looks like jellyfish or some other food sources，less research has been carried out into what plastic smells like to ocean animals.But now，a study from the University of North Carolina at Chapel Hill has found the coating （涂层）that naturally builds up on ocean plastics causes the rubbish to give off the smell of food.
   The researchers took 15 turtles，each around five months old，and placed them in a lab aquarium.They then piped in smells of clean water，clean plastic，turtle food，and plastic that had been soaking in the ocean environment for five weeks.The turtleowed no reaction to the smells of clean water or clean plastic.But when facing ocean soaked plastic or turtle food，they stuck their noses out of the water and showed increased activity.
   "This finding is important because it's the first proof that the smell of ocean plastics causes animals to eat them， " said Dr Kenneth J Lohmann，who took part in the study. "It's common to find a turtle with its stomach full of plastic materials.There are also increasing reports of sea turtles that have become ill and stuck on the beach due to their taking in plastic. "
   According to the researchers，areas of the ocean with much plastic may trick turtles and other animals into thinking that there are plenty of food sources，when the opposite is true. "Once these plastics are in the ocean，we don't have a good way to remove them or prevent them from smelling like food， "said Lohmann. "The best thing we can do is to keep plastic from getting into the ocean at all. "

（1）Why is plastic pollution posing a threat to ocean animals？
A．It may mislead them as food.
B．It may eat up all jellyfish.
C．It may kill them with its smell.
D．It may trap 700 species of sea animals.
（2）What smell did turtles prefer according to the study？
A．Sea water.
B．Clean water.
C．Clean plastic.
D．Ocean-soaked plastic.
（3）What do we know from the study？
A．Turtles seem to eat plastic because it looks like food.
B．Turtles have died out due to their taking in plastic.
C．Turtles eat plastic because it gives off the smell of food.
D．Turtles with their stomachs full of plastic were studied.
（4）What are we supposed to do according to Dr.Kenneth J Lohmann？
A．Keep away from the polluted ocean.
B．Maintain a plastic-free ocean.
C．Remove plastic from the ocean.
D．Stop people feeding turtles plastic.

共享时间:2022-07-22 难度:1 相似度:2

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202520. （2021•西安中学•二模） Researchers studied data from the National Health and Nutrition Examination Survey，organized by the Centers for Disease Control and Prevention （CDC） in the United States and looked at the relationship between cups of coffee drunk per day and both total body fat percentage and abdominal or trunk fat.
   They found that women aged 20---40 who drank two or three cups of coffee per day had the lowest level of obesity，3.4% lower than people who did not consume coffee.Among women aged between 45-69，those who drank four or more cups had an obesity percentage 4.1% lower.
   Overall，the average total body fat percentage was 2.8% lower among women of all ages who drank two or three cups of coffee per day.
   The findings were consistent whether the coffee consumed was caffeinated（含咖啡因的）or decaffinated and among smokers/non-smokers and those suffering from chronic diseases（慢性病） when compared to those in good health.
   In men，the relationship was less significant although men aged 20-44 who drank two or three cups per day had 1.3% less total fat and 1.8% less trunk fat than those who didn't consume coffee.
   Around 7 million tons of coffee is consumed globally every year.Dr.Lee Smith，senior author of the study，said： "Our research suggests that there may be active compounds in coffee other than caffeine that manage weight and which could potentially be used as anti-obesity compounds."
   "It could be possible that coffee，or its effective ingredients could be integrated into a healthy diet strategy to reduce the burden of chronic conditions related to the obesity，" Dr.Lee Smith added. "It's important to interpret the findings of this study in light of its limitations - the study was at a specific point in time so trends cannot be established.However，we don't believe that someone's weight is likely to influence their coffee consumption."

（1）What can be inferred from the text？
A．Coffee has less effect on men than women in fat according to the findings.
B．The women aged 20-44 like to drink two or three cups of coffee per day.
C．The researchers found that the coffee consumers preferred caffeinated coffee.
D．Trends will be established to limit people's weight by their coffee consumption.
（2）What in coffee mainly influences body fat according to Dr.Lee Smith？
A．The caffeine.
B．The decaffeinated.
C．The effective compounds.
D．The rich nutrition.
（3）What might the study be used for？
A．Developing a new coffee.
B．The treatment of obesity.
C．The treatment of heart disease.
D．The study of physical differences between the sexes.
（4）Where is this text most likely from？
A．A diary.
B．A guidebook.
C．A novel.
D．A magazine.

共享时间:2021-03-16 难度:1 相似度:2

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202501. （2021•西安中学•一模） Free school meals are back in the news.Footballer Marcus Rashford's petition（请愿书） to extend free school meals provision （供给） into the school holidays has collected 1.1 million signatures，causing the government to reverse policy.It has restarted the debate over free school meals，fuelled，most recently，by figures forecasting that if the government ends as planned the current ￡20 top-up（附加款），another 200，000 children will slip into poverty.This is in addition to the 550，000 children already living in poverty previous to COVID-19.
   The roots of the current school meals system lie in the mid-19th century.In Manchester，independent charities as well as official bodies started to provide free meals for undernourished children in the 1870s.When education became compulsory in the following decades，the extent of the issue became apparent.Proponents of feeding starving children pointed out that it was due to government order that children were in school，not working and contributing to the family food budget，so the government should pay.
   Reception was mixed.Then，as now，children rejected foods they weren't used to.Diaries of the time talked of "little bags of mystery" （sausages）.Some children were put off brassicas （芥菜类） for life.Finding the balance between cheap and good proved hard.The chief medical officer talked about the lack in calorie value and elements of a well-balanced diet which a needy child does not get at home，such as milk，cheese，eggs，green vegetables，fruit and meat.In 1980，the Tory government，desperate to cut costs，made provision largely optional and abolished nutritional standards.Over the next 15 years convenience and cost became the most important.
   Today，school meals provision is linked to benefits：in England around 17 percent of children are entitled to free school meals.Provision is outsourced （外包），leading to huge variation.In the last year，we've seen all of the age-old debates repeated once more.How do we decide who is entitled？How do we guarantee quality？Who decides what children eat？Who pays？Undernutrition does not just have physical effects，but also affects behavior and ability to learn.It has a lifelong impact.The arguments around free school meals seem never to end.But they are hugely important and，until poverty is ended，they will not and should not go away.

（1）Why did Marcus Rashford start the petition？
A．To feed an increasing number of children in poverty.
B．To restart the debate over free school meals.
C．To raise fund for hunger relief for children.
D．To lift children out of poverty.
（2）What does the paragraph 2 probably talk about？
A．Manchester and independent charities set up school free meals.
B．It was government that should pay for the school meals.
C．How did the current school meals system come into existence？
D．It was compulsory education that contributed to free school meals.
（3）What can we infer about school meals from paragraph 3？
A．Some children liked brassicas provided in the school.
B．School meals were both tasty and cheap.
C．School meals failed to meet children's nutritional needs.
D．The Tory government chose nutrition over cost.
（4）What does the writer think of the debates over free school meals？
A．Never-ending.
B．Meaningless.
C．Influential.
D．Necessary.

共享时间:2021-03-08 难度:1 相似度:2

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205879. （2017•西安中学•高一下期末） Today just as technology changed the face of industry，farms have experienced an"agricultural revolution"．On the farm of today，machines provide almost all the power．
One of the most important benefits will be the farm computer．A few forward-looking farmers are already using computers to help them run their farms more efficiently．The computers help them keep more accurate records so they can make better decisions on what crops to plant，how much livestock（家畜） to buy，when to sell their products，and how much profit they can expect．Many computer companies have been developing special computer programs just for farmers．Programs are being written for pig producers，grain farmers，potato farmers，and dairy farmers．In the future，farmers will be able to purchase computer programs made to their needs．Because of the growing importance of computers on the farm，students at agricultural colleges are required to take computer classes in addition to their normal agricultural courses．There can be no doubt that farmers will rely on computers even more in the future．While the old-time farm depended on horse power，and modern farms depend on machine power，farms of the future will depend on computer power．
Another technological advance which is still in the experimental stage is the robot，a real"mechanized（机械的） hired hand"that will be able to move and，in some ways，think like a human being．Agricultural engineers believe that computer-aided robots will make shocking changes in farming before the end of the century．Unlike farmers of the present，farmers of the future will find that many day-to-day tasks will be done for them．Scientists are now developing robots that will be able to shear（修剪） sheep，drive tractors，and harvest fruit．Even complex jobs will be done by robots．For example，in order to milk their cows，farmers must first drive them into the barn，then connect them to the milking machines，watch the machines，and disconnect them when they are finished．In the future，this will all be done by robots．In addition，when the milking is completed，the robots will automatically check to make sure that the milk is pure．The complete change of the farm is far in the future，but engineers expect that some robots will be used before long．

（1）Why are students at agricultural colleges required to take computer classes？
A．Because computers help them keep more accurate records．
B．Because they need to develop special computer programs just for farmers．
C．Because computers will be more and more important on future farms．
D．Because computer classes are more important than normal agricultural courses．
（2）Which of the following statements is true according to the passage？
A．Computers are now used by many farmers to help run their farms．
B．Computers can help farmers to make better decisions and predictions．
C．Both computers and robots have been in use on today's farms．
D．Farms may be totally changed in the coming years．
（3）What's the author's attitude toward the agricultural revolution？
A．Positive
B．Negative
C．Doubtful
D．Indifferent
（4）What is the best title for the whole passage？
A．Computer，Farmers' Best Friend
B．Farmers in The Future
C．Computers and Robots
D．The Agricultural Revolution．

共享时间:2017-07-12 难度:1 相似度:2

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205880. （2017•西安中学•高一下期末） A new study in December's Journal of Family Psychology says that working mothers report being healthier and happier than the stay-at-home mothers．The author，Dr．Cheryl Buehler，concludes that"A mother's economic role is central to family life，and it supports her well-being and her parenting．"What about the miserably conflicted working mother crying at her desk because her baby's first words were"au pair（家务女工）"？
Though Buehler's study relies on data from more than 1，300 mothers of young children across the U．S．-tracked over a 10-year period-the research is far from perfect．To begin with，it's pretty old，as it covers the decade beginning in 1991．So it's unfair to ask whether contemporary（当代的）working moms，whose companies have been downsized（减员的） and whose bosses may expect them to turn on their Black Berries for 24 hours，are quite as peaceful as their Clinton-time mothers．Even more importantly，the study focused on part-time working moms．
But what really makes this study unique is that the focus is on the mothers as well as the children．After decades of research on how working mothers affect their children，somebody's finally gotten around to investigate how it affects the moms．The study also takes a big step to the ongoing need for flexibility（灵活性） in the American workplace-and at home，because this is the power of balance．What's right for any family is what makes the members within it as happy and fulfilled as possible．
The idea that both work and parenting-especially in combination-can contribute to a woman's mental and physical health is good news．But we're complicated beings and the things that satisfy us are diverse（多元的）．They're our children and our careers．Nobody said it was easy．But maybe if you want to have it all，a good place to start is by doing it all．

（1）What can we infer from the underlined sentence in the first paragraph？
A．Working mother doesn't like her job．
B．Working mother is often not very happy．
C．Working mother hates the au pair very much．
D．Working mother loves to cry to relax herself．
（2）What do we know from the second paragraph？
A．Part time working mothers are happier than before．
B．The Clinton-time mothers are much busier than today's．
C．Today's moms have much better cellphones than before．
D．The contemporary working moms have much more pressure．
（3）In the third paragraph，the author        ．
A．emphasizes the flexibility in the American working time
B．believes it is not very important to do this kind for research
C．loves to see the research on how working mothers affect themselves
D．considers study on how working mothers affect their children necessary．

共享时间:2017-07-12 难度:1 相似度:2

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205943. （2016•西北大附中•高二下期末） Visualization is closely related to positive thinking．It is used by athletes，musicians，actors，speakers，and others to improve their performance in stressful situations．How does it work？Listen to long-distance runner Vicki Huber：
Right before a big race，I'll picture myself running，and I will try and put all of the other competitors in the race into my mind．Then I will try and imagine every possible situation I might find myself in…behind someone，being pushed，different positions on the track，laps to go，and，of course the final part．And I always picture myself winning the race，no matter what happens during the event．
Of course，Huber doesn't win every race she runs，but research haown that the kind of mental imaging she describes can significantly increase athletic performance．It has also shown that visualization can help speakers control their stage fright．
The key to visualization is creating a vivid mental blueprint in which you see yourself succeeding in your speech．Picture yourself in your classroom rising to speak．See yourself at the lectern（放演讲稿的讲桌），self-assured，making eye contact（接触）with your audience and delivering your introduction in a firm，clear voice．Feel your confidence growing as your listeners get more and more caught up in what you are saying．Imagine your sense of achievement as you conclude the speech knowing you have done your very best．
As you create these images in your mind's eye，be realistic but stay focused on the positive aspects of your speech．Don't allow negative images to affect the positive ones．Acknowledge your nervousness，but picture yourself overcoming it to give an effective presentation．If one part of the speech always seems to give you trouble，visualize yourself getting through it without any problems．And be specific．The clearer your mental pictures，the more successful you are likely to be．
As with your physical rehearsal（排练）of the speech，this kind of mental rehearsal should be repeated several times in the days before you speak．It doesn't guarantee that every speech will turn out exactly the way you imagine it-and it certainly is no replacement for thorough preparation．But it is a proven way to help control your nerves and to make a successful presentation．
（1）Huber's visualization of her races        ．
A．is detailed and thorough
B．is used during the event
C．is based on real pictures
D．is created with other runners
（2）According to the text，if you run into difficulty when preparing a speech，you should        ．
A．ignore the negative aspects
B．do the mental imaging later
C．imagine finishing it smoothly
D．create clearer mental pictures
（3）What do we learn about mental rehearsal？
A．It usually produces the desired results．
B．It may be a good way to calm you down．
C．It is more important than physical rehearsal．
D．It is a good chance to show your imagination．

共享时间:2016-07-12 难度:1 相似度:2

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205980. （2016•西安一中•高二下期末） University-the best days of my life!I made lots of friends in my student dorm，went to great parties，joined the debating society…and，well，I did some work too-but I must admit my lecturers were very patient with my tardiness（拖拉）．
It's easy to look back at our university days through rose-tinted spectacles but the truth is that when we first arrived on campus，most of us were out of our comfort zone．
In fact，a survey of students at Imperial College London has revealed that 3 out of 4 students experience high levels of stress，or a mental health condition，during their time at college．The survey，completed by over a thousand students，also found that 70% of those that experience stress do so at least once a week，and 9% of students feel stressed constantly．
Kirsty，a student at Exeter University，didn't enjoy her first days in college．She says："When I first got to university I don't think I'd realized that I'd forgotten how to make friends．I'd been with the same school friends for seven years，and so I was trying to balance social success with academic success while learning how to look after myself at quite a young age．"
Dr Ruth Caleb of the counseling service at Brunel University in London has some tips that should make life easier for students before they set off for university．She says："Certain things that I think it would be very helpful for students to have put in place are an ability to do the practical things of life-to do the washing，to do the cleaning and so on-being able to cook．Budgeting is extremely important in university life．"And Caleb adds："You should learn how to spend time on your own comfortably．"
I graduated and learnt how to take care of myself the hard way．I hope that new students these days remember to acquire some life skills before they make the big jump．
（1）Which of the following is closest in meaning to the underlined part in Paragraph 2？
A．rose-shaped glasses
B．positive perspectives
C．negative sides
D．flower-like tools
（2）What did Kirsty find most difficult to do during her first days in college？
A．Not knowing how to make new friends．
B．Not realizing the importance of making friends．
C．Looking after herself at quite an early age．
D．Trying to achieve academic success．
（3）Which of the following tips are helpful or important EXCEPT         according to Dr．Ruth Caleb？
A．having the ability to cook
B．being able to do the cleaning
C．learning how to spend money on one's own
D．balancing social success and academic success
D．Acquiring some life skills isn't that important to new students．
（4）What does the author probably mean by saying"I graduated and learnt how to take care of myself the hard way"？
A．He quickly adapted to the new environment when he first arrived on campus．
B．He graduated from college with many achievements．
C．It might have taken him some time to get used to college life．
D．It might have made him proud by leading an independent life at college．

共享时间:2016-07-30 难度:1 相似度:2

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206056. （2016•七十中•高一下期末） Silence means differently in different cultures．Silences may be thoughtful，or they may be empty when a person has nothing to say．A silence in a conversation may also show stubbornness，or worry．Silence may be viewed by some cultural groups as extremely uncomfortable；therefore attempts may be made to fill every gap with conversation．Persons in other cultural groups value silence and view it as necessary for understanding a person's needs．
Many Native Americans value silence and feel it is a basic part of communicating among people，just as some traditional Chinese and Thai persons do．Therefore，when a person from one of these cultures is speaking and suddenly stops，what maybe implied（暗示） is that the person wants the listener to consider what has been said before continuing．In these cultures，silence is a call for reflection．
Other cultures may use silence in other ways，particularly when dealing with conflicts among people or in relationships of people with different amounts of power．For example，Russian，French，and Spanish persons may use silence to show agreement between parties about the topic under discussion．However，Mexicans may use silence when instructions are given by a person in authority rather than be rude to that person by arguing with him or her．In still another use，persons in Asian cultures may view silence as a sign of respect，particularly to an elder or a person in authority．
Nurses and other care-givers need to be aware of the possible meanings of silence when they come across the personal anxiety their patients may be experiencing．Nurseould recognize their own personal and cultural construction of silence so that a patient's silence is not interrupted too early or allowed to go on unnecessarily．A nurse who understands the healing（治愈） value of silence can use this understanding to assist in the care of patients from their own and from other cultures．
（1）What does the author say about silence in conversations？
A．It is culture-specific．
B．It promotes friendship．
C．It implies anger．
D．It is content-based．
（2）Which of the following people might regard silence as a call for careful thought？
A．The Mexicans．
B．The French．
C．The Chinese．
D．The Russians．
（3）What does the author advise nurses to do about silence？
A．Let it continue as the patient pleases．
B．Make use of its healing effects
C．Evaluate its harm to patients．
D．Break it while treating patients．
（4）What may be the best title for the text？
A．Sound and Silence
B．Speech Is Silver；Silence Is Gold
C．Silence to Native Americans
D．What It Means to Be Silent．

共享时间:2016-07-14 难度:1 相似度:2

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dygzyyyn

2021-02-07

高中英语 | 高二上 | 阅读理解

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