[解析]
(1)词句猜测题。根据第一段The lab head would spend much time asking the presenter a series of pointed questions.Presenters would need to know extremely small details about articles they were citing and present their research using picture﹣perfect analyses and graphs.(实验室负责人会花很多时间向演讲者提出一系列尖锐的问题。演讲者需要知道他们引用的文章的微小细节,并使用完美的分析和图表来展示他们的研究。)So表示因果关系,所以对几乎所有人来说,演讲都是一件令人紧张的事情。故划线词意思是"令人紧张的"。A.Harmonious.和谐的B.Embarrassing.令人尴尬的;C.Stressful.令人紧张的;D.Appealing.吸引人的。故选C。
(2)细节理解题。根据第三段The turning point came during the pandemic.It hit home to me that one's life isn't endless and that I need to make the most of the time I have.I decided that I wanted to become a better professor—to make a mark by training the next generation of scientists.(转折点出现在大流行期间。我明白了人的生命不是无止境的,我需要充分利用我所拥有的时间。我决定要成为一名更好的教授——通过培养下一代科学家而出名)可知,大流行让作者想做出更多的贡献。故选D。
(3)段落大意题。根据第四段In my personal life,I had benefited from listening to talks by motivational speakers.So I decided to start there.At the next lab meeting,I showed my students a video about happiness,hoping it would help them in their personal life and give us something light to discuss.I wasn't sure how they'd respond,hut I was pleased to discover that they were interested in discussing the advice in the video afterward.In the end,I asked them whether they'd like to do similar activities in future meetings,and they said yes.(在我的个人生活中,我从听励志演说家的演讲中获益良多。所以我决定从这里开始。在接下来的实验室会议上,我给学生们看了一个关于幸福的视频,希望它能帮助他们的个人生活,并给我们一些轻松的讨论。我不确定他们会有什么反应,但我很高兴地发现他们对讨论视频中的建议很感兴趣。最后,我问他们是否愿意在以后的会议上做类似的活动,他们说愿意)可知,第四段的主要内容是作者所做的改变。故选A。
(4)主旨大意题。根据最后一段My greatest wish is to see my trainees become their best selves,understand who they are and what they want as well as reach their career goals.I am proud of the change and the difference I've made.(我最大的愿望是看到我的学员成为最好的自己,了解他们是谁,他们想要什么,并实现他们的职业目标。我为自己带来的改变感到骄傲)结合文章主要讲述了作者在疫情期间决定做出更多的贡献,决定要成为一名更好的教授——通过培养下一代科学家而出名。作者的改变最终带来的良好的效果。可推知,作者主要想传达的是:一个人应该有勇气做出改变。故选B。