内容正文:
Section Ⅲ Grammar and usage
[课时检测] (标语篇配有教师讲评课件)
Ⅰ.阅读理解
Coral reefs (珊瑚礁) are an integral part of sea life and sustain it by providing shelter and habitat for various organisms.They also supply and recycle nutrients as well as enable a growing fish population, along with other species, for a healthy and diverse ecosystem.However, the rise in average water temperatures due to climate change has resulted in more frequent and long-time “coral bleaching (白化现象)” events that damage their health, causing fish and other sea species to abandon them.
In order to restore this delicate ecosystem, scientists from the UK and Australia conducted a study that involved using loudspeakers underwater near damaged coral reefs to make them sound healthy and attract fish, potentially kick-starting the natural recovery process of coral reefs and their dependent life forms.The location for this experiment was the Great Barrier Reef in the Coral Sea, found alongside the east coast of Queensland, Australia.The site is noted to have the largest coral reef system in the world.
“Healthy coral reefs are remarkably noisy places — the crackle of snapping shrimp and the whoops and grunts of fish.Young fish concentrate on these sounds when they're looking for a place to settle,” said Steve Simpson, study co-author and a professor at the University of Exeter, UK.
By using loudspeakers to copy such sounds, parts of dead coral reefs were found to attract twice as many fish, compared to places where no sounds were played.“These returning fish are crucial for coral reefs to function as healthy ecosystems.Boosting fish populations in this way could help to kick-start natural recovery processes, preventing the damage we're seeing on many coral reefs around the world,” said lead author, Tim Gordon.
语篇解读:本文是一篇说明文。气候变暖、海水温度上升导致了珊瑚礁的白化现象。为了恢复生态,科学家采用了新方法——通过播放某些音乐以吸引鱼来修复珊瑚礁,希望借助它们来恢复生态系统。这一方法已经初见成效。
1.What causes the phenomenon of coral bleaching?
A.Diverse species. B.Noise pollution.
C.Fishing industry. D.Climbing temperatures.
解析:选D 细节理解题。根据第一段最后一句可知,是全球变暖引起的海水温度持续上升导致了珊瑚礁的白化现象。
2.What approach is introduced to recover the coral reefs?
A.Removing damaged coral reefs.
B.Using loudspeakers to keep fish away.
C.Building new homes for sea species.
D.Playing certain sounds to appeal to fish.
解析:选D 细节理解题。根据第二段第一句可知,科学家通过播放某些音乐以吸引鱼来修复珊瑚礁。
3.Why are Steve Simpson's words quoted?
A.To provide some findings of the study.
B.To show the progress of the experiment.
C.To explain reasons for the new approach.
D.To give another solution to the problem.
解析:选C 推理判断题。根据第三段可知,鱼类寻找地方定居时会专注于某些声音,故引用Steve Simpson的话是为了解释采用这一新办法的理由。
4.What can we infer from the last paragraph?
A.The attempts are in vain.
B.Natural recovery is impossible.
C.Initial success has been achieved.
D.The coral reefs have returned to normal.
解析:选C 推理判断题。根据最后一段尤其是第一句可知,该方法已经初见成效。
Ⅱ.完形填空
I love wildlife.So when my friend said that we had a chance to __5__ brown bears in the High Tatras, I didn't think twice about it, and we __6__ arrangements to go the following week.
The trip was a great __7__! We walked for hours and stayed in a __8__ mountain hut (小屋) which was usually reserved for park rangers.It actually took us some trouble even to locate it.As soon as we arrived, our guide __9__ to us that we would be fully integrated (融入) into their research programme and would be tracking the __10__ of bears wearing transmitters.On the first day, we were woken up at sunrise and after __11__ some warm clothes, set off into the forest.Our guide walked very __12__ and we had trouble keeping up with him.Suddenly he __13__ across a small hill.He must have caught sight of a bear.We followed him as fast as we could, but by the time we reached him, the bear had __14__ into the bushes.Later in the week, though, we did manage to observe several bears feeding on berries.We were so excited.Yet, __15__ hurrying to take photos, we __16__ our breath, stayed about 30 meters away and just watched them.Our guide insisted that we should keep our __17__ from the bears so as not to __18__ them.
Observing bears in their natural habitat was really __19__.I had never experienced anything like that before.If I hadn't had to go back to school, I would happily have stayed on for several more weeks.
语篇解读:本文是一篇夹叙夹议文。文章主要讲述了作者和朋友一起去上塔特拉山追踪棕熊的经历。
5.A.hunt B.feed
C.protect D.track
解析:选D 根据下文“tracking”可知,作者和朋友是要去山上追踪棕熊。
6.A.made B.changed
C.cancelled D.quit
解析:选A 根据下文“arrangements to go the following week”可知,这里指作者他们为了去山上追踪棕熊而做了一些计划和安排。
7.A.deal B.danger
C.success D.regret
解析:选C 根据下文“I had never experienced anything like that before.If I hadn't had to go back to school, I would happily have stayed on for several more weeks.”可知,作者对这次旅行非常满意,即这次旅行非常成功。
8.A.safe B.comfortable
C.remote D.beautiful
解析:选C 根据上文“We walked for hours”可知,他们步行几个小时才到达,所以他们待在一个遥远的山上小屋中。
9.A.recommended B.explained
C.admitted D.reported
解析:选B 根据下文“to us that we would be fully integrated into their research programme and would be tracking the ________ of bears wearing transmitters”可知,这是导游向作者他们解释具体的安排。
10.A.habits B.leftovers
C.photos D.movements
解析:选D 根据下文“of bears wearing transmitters”可知,他们佩戴发射器应该是跟踪熊的行踪。
11.A.throwing on B.tidying up
C.paving for D.taking off
解析:选A 根据上文“we were woken up at sunrise”可知,这里指作者他们早上醒来之后的行为,应该是匆匆穿上暖和的衣服。
12.A.cautiously B.rapidly
C.steadily D.casually
解析:选B 根据下文“we had trouble keeping up with him”可知,作者他们很难跟上向导,所以他应该是走得很快。
13.A.moved B.wandered
C.paced D.dashed
解析:选D 根据上文“Our guide walked very ________ and we had trouble keeping up with him.”可知,向导走得很快,所以应该是冲过一座小山。
14.A.disappeared B.looked
C.broken D.turned
解析:选A 根据下文“Later in the week, though, we did manage to observe several bears feeding on berries.”可知,作者他们第一次去的时候应该是没有看到熊,即熊消失在丛林里。
15.A.due to B.instead of
C.apart from D.as for
解析:选B 根据下文“just watched them”可知,作者他们除了观察熊,其他的什么都没有做。
16.A.drew B.held
C.released D.caught
解析:选B 根据上文“We were so excited.”和下文“our breath”可知,作者他们发现了熊很激动,所以屏住呼吸,专注地看。
17.A.intention B.fear
C.bravery D.distance
解析:选D 根据上文“stayed about 30 meters away and just watched them”可知,他们和熊之间有一段距离。
18.A.attack B.train
C.disturb D.feed
解析:选C 根据上文“Our guide insisted that we should keep our ________ from the bears”可知,作者他们和熊保持距离,应该是为了不打扰它们。
19.A.fascinating B.boring
C.exhausting D.challenging
解析:选A 根据下文“I had never experienced anything like that before.”可知,作者认为这次旅行很有趣。
Ⅲ.语法填空(15分)()
Dongting Lake, the second __20__ (large) freshwater lake in China, has been known for being home to fishes and mammals since ancient times.They reached here along the flow of the river to live and produce young, giving local fishermen including He Daming countless __21__ (nature) gifts.
In the 1980s, there __22__ (be) more than 120 species of fish in the Lake.However, illegal sand mining coupled with many ships sailing in the area affected the lake ecosystem __23__ illegal power grids (电网) began to appear around the area.As a result, fishery resources in the Lake continued to be reducing, __24__ threatened the ecology of Dongting Lake.It was around this time that the number of finless porpoises (江豚) that used to be common in the lake dropped __25__ (clear).
He Daming gathered some of his fellow fishermen __26__ (discuss) the situation and even required them to stop fishing.In addition, they set up an ecological protection __27__ (organize).A lot of well-educated young people also joined it.
From 2020 on, as fishing was not allowed in key areas of the Yangtze River basin, including Dongting Lake, many fishermen have gradually given up fishing and taken up jobs in many other __28__ (industry).
Thanks to their efforts, Dongting Lake ecology has taken on __29__ complete new look so far.
语篇解读:本文是一篇说明文。文章介绍了中国第二大淡水湖——洞庭湖生态保护的相关情况。
20.largest 考查形容词的最高级。根据句意可知,此处表示“第二大的”,应用large的最高级形式,故填largest。
21.natural 考查形容词。根据句意可知,此处应用形容词修饰名词gifts,作定语,表示“天然的”,故填natural。
22.were 考查动词的时态和主谓一致。由时间状语“In the 1980s”可知,句子描述的是过去的事,应用一般过去时;且在there be句型中,be动词的数与其后名词的数保持一致,be动词后面的“more than 120 species of fish”是复数,故填were。
23.and 考查连词。空前句子“illegal sand mining coupled with many ships sailing in the area affected the lake ecosystem”和空后句子“illegal power grids began to appear around the area”是并列关系,所以应用并列连词and连接。
24.which 考查定语从句。分析句子结构可知,空处引导非限制性定语从句,先行词是空前的整个句子,所以此处应用which来引导从句。
25.clearly 考查副词。修饰动词dropped应用副词形式,表示“明显地”,故填clearly。
26.to discuss 考查非谓语动词。空处是非谓语动词作目的状语,表示“为了讨论”,应用不定式to discuss。
27.organization 考查名词。由前面的冠词“an”可知,此处应用名词形式,表示“组织”,作set up的宾语,故填organization。
28.industries 考查名词复数。此处应用名词作介词in的宾语,且由“many”可知,此处应用industry的复数形式,故填industries。
29.a 考查冠词。look在此意为“面貌”,且为可数名词,此处表示“一个全新的面貌”,应用不定冠词来修饰,且complete以辅音音素开头,故填a。
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