[解析]
(1)考查名词及语境理解。A.opportunities机会;B.possibilities可能性;C.challenges挑战;D.demands需求。根据后文"sea turtle protection and rescue missions"可知,是因为海龟面临巨大挑战和危险,才会进行海龟保护和救援任务。故选C。
(2)考查形容词及语境理解。A.confused困惑的;B.worried担忧的;C.challenging困难的;D.embarrassed尴尬的。根据后文"he devoted himself to the protection of sea turtles as a volunteer."可知,她对海龟的危险状况很担忧,所以致力于保护海龟。故选B。
(3)考查动词及语境理解。A.encouraged鼓励;B.supported支持;C.donated捐献;D.devoted致力于。根据后文"He gave his spare time to raise awareness of caring for sea turtles and carried out sea turtle protection and rescue missions."可知,此处是指他致力于保护海龟。故选D。
(4)考查名词及语境理解。A.awareness意识;B.importance重要性;C.concern关心;D.request要求。根据动词raise(提高)可知,与之相搭配的名词为"意识"。故选A。
(5)考查名词及语境理解。A.idea想法;B.progress进步;C.solution措施;D.design设计。后来,他认为这不是长久之计。此处的this是指前文中提到的"He gave his spare time to raise awareness of caring for sea turtles and carried out sea turtle protection and rescue missions."这一措施。故选C。
(6)考查形容词及语境理解。A.unique独特的;B.limited有限的;C.disappointing令人失望的;D.valuable珍贵的。根据主语"One person's abilities"和后文"I wanted to make real changes"可知,此处是指他后来觉得一个人的力量是有限的。故选B。
(7)考查介词短语及语境理解。A.By chance偶然地;B.On purpose故意地;C.In all总的来说;D.By far到目前为止。根据后文"reached out to Indika and offered his help to protect sea turtles"可知,此处是指一次偶然的机会两人联系上了,文中语境没有说Jack Xiao是特意联系他。故选A。
(8)考查动词及语境理解。A.caters迎合;B.provides提供;C.offers提供;D.supplies供应。该组织为志愿者提供专业的培训和指导,传播海龟知识,开展保护活动。"professional training and guidance"是该组织提供的东西,根据介词for可知,provide符合"provide sth.for sb. "的用法。故选B。
(9)考查形容词及语境理解。A.injured受伤的;B.old年老的;C.fragile脆弱的;D.abandoned被抛弃的。根据动词rescue可知,只有受伤的海龟才需要被救助。故选A。
(10)考查动词及语境理解。A.picking挑选;B.collecting收集;C.moving移动;D.pulling拉。根据前文"Then they found people and animals eat turtle eggs on the beach."可知,此处是指志愿者们把海龟蛋从海滩上转移到保护中心。故选C。
(11)考查动词及语境理解。A.ensured保证;B.foreseen预见;C.suggested建议;D.indicated显示。此处it是指前文中提到的"volunteers started transferring eggs to a protection center with artificial cultivation",这样就防止了海龟蛋被吃掉,从而保证了更高的存活率。故选A。
(12)考查动词及语境理解。A.tend往往;B.refuse拒绝;C.hesitate犹豫;D.struggle挣扎。根据"which cause many turtles to die accidentally"可知,吸管和塑料袋导致许多海龟意外死亡,所以志愿者们拒绝使用。故选B。
(13)考查动词短语及语境理解。A.given out分发;B.put away储存;C.paid off获得回报,获得成功;D.drawn back退却。此处的it是指"Many volunteers now refuse to use straws and plastic bags which cause many turtles to die accidentally.",现在有很多人都拒绝使用会导致许多海龟意外死亡的吸管和塑料袋了,这件事让他觉得所有的努力都有了回报。故选C。
(14)考查动词及语境理解。A.explain解释;B.send发送;C.pass传递;D.put放置。根据后文"down to future generations"可知,此处是指把这些知识传给下一代,pass down意为"传递下去"。故选C。
(15)考查名词及语境理解。A.shelter栖息地;B.achievement成就;C.difference不同;D.breakthrough突破。通过坚持不懈的努力,Indika坚信他们会给海龟们带来改变。根据介词to可知,此处使用固定搭配"make a difference to",意为"给……带来改变",此处是指他们会给海龟们带来改变。故选C。