2019-2020学年高二英语人教版选修七同步练习：Unit 3 Under the sea Word版含答案

Unit 3 Under the sea
1、用适当的介词或副词填空
1.I was sorting__________ my accommodation when I heard a huge noise coming from the bay.
2.The children are aware__________ the danger of taking drugs.
3.One witness__________ the accident said the driver appeared to be drunk.
4.He has been very ill. The doctor says that he is now __________danger.
5.When a man tried to rob a store by entering through the roof, he got stuck upside__________.
6.Every time I meet with difficulty, she helped me __________.
7.He jumped__________ the river and dragged her to safety.
8.Butterflies feed__________ the flowers of garden plants.
2、用短语的适当形式填空
1.He should have an operation,or he will be __________losing his life.
2.You should __________the plan for a moment,and then make a decision.
3.Look!The oil painting on the wall is hanging__________.
4.Not having noticed the man on the corner,Mary __________when she saw him.
5.Tony seemed very shallow and he didn’t__________the potential dangers.
6.We heard the bell striking 2 o’clock__________.
7.He took __________cigarettes from his shirt pocket.
8.After a long tiring day,she is __________delicious food.
9.Those who agree __________your hands!
10.A lot of advanced technology will be __________from foreign countries.
3、 John Perry stood up and looked around again.The island had been a good place to find shells.But now how could he make the 1 move out to
sea?If they swam out to sea he could jump in and get to the
shore 2 they saw him.
He saw the sharks rolling and playing.Their 3 was now gone and they were killing for fun.How could he make them move away?
He drew his knife from his belt.Sharks can 4 blood,he thought.He put the knife against his leg and cut deep into the 5 .The blood ran out and he caught it on his white shirt.When the shirt was red and wet he tied some cloth around his leg to 6 the flow of blood.He then tied a long piece of cloth to the shirt,threw it into the water
and 7 it with the piece of cloth.
The sharks smelled the blood and came 8 toward the shirt.He ran down the sand reef pulling the shirt and the sharks raced after it.He
was 9 them away from shore.Suddenly he dropped the cloth,turned toward the 10 and ran as fast as he could.He jumped in the water and swam.
He was halfway across 11 he turned to look back.A high bony fin(鳍)was 12 through the water toward him.He put his face in the water and kicked and splashed himself 13 as fast as he could.The shore was near now.
He lifted his head again to 14 and he saw the shore very near.From behind he left the water rush toward him,almost pushing him,helping him.And then a great gray body hit him and almost rolled him over in the water.He touched the shore with 15 and he pulled himself up the stones.The shark, 16 by the smell of blood and the chase(追逐),went wildly after him.Its great body crashed against 17 .
The end came quickly and the water was covered with the shark’s blood.The injured shark was eaten up 18 by others as it tried to escape.
Perry slowly struggled 19 his feet.
“So,”he said,“you did not get me.”And he looked down at the sharks still eating 20 they weren’t hungry.He climbed up the stones and walked toward the village.
1.A.boats B.sharks C.soldiers D.shells
2.A.before B.after C.until D.when
3.A.food B.hunger C.anger D.wish
4.A.fear B.taste C.drink D.smell
5.A.sand B.shark C.flesh D.meat
6.A.stop B.keep C.join D.cause
7.A.pulled B.wrapped C.connected D.caught
8.A.running B.racing C.swimming D.jumping
9.A.driving B.keeping C.preventing D.leading
10.A.sea B.shore C.island D.sand
11.A.before B.while C.unless D.when
12.A.going B.running C.cutting D.swimming
13.A.forward B.backward C.upward D.downward
14.A.cry B.breathe C.swim D.escape
15.A.his feet B.a stick C.his fingers D.the shirt
16.A.interested B.frightened C.disappointed D.excited
17.A.the shore B.Perry C.the stones D.the shells
18.A.lively B.alive C.dead D.friendly
19.A.on B.by C.to D.with
20.A.as though B.even though C.as soon as D.as long as
4、 Many people believe sharks(鲨鱼)are dangerous and will always try to hurt or even kill humans.In fact,94 percent of the world’s 400 species are harmless to humans.
A shark exhibition at the National Aquarium Baltimore,the US,proves this.Visitors can touch young sharks,see their eggs develop and watch a dozen different species swim smoothly around a huge tank.
Most people fail to realize that shark attacks don’t happen very often.Humans are most likely to be killed by lightning than by a shark.
And to make this point clear,the museum has set up a special touching pool for children.There,kids can learn,from an early age,not to fear sharks.They can watch them develop inside their eggs and feel the skin of the older swimmers.
“People fear what they don’t know,”said Nancy Hotchkiss,an organizer of the exhibition,which runs until December.“Sharks have been around for 400 mill ion years and play an important role in the ocean’s food chain.We want people to discover that sharks are amazing animals that need our respect and protection.”
A shocking 100 million sharks are special foods killed around the world by humans.
A study published in January in theUSmagazine Science found that almost all recorded shark species have fallen by half in the past 8 to 15 years.
Thousands of sharks are hunted in Asia for special foods,such as shark fin(鱼翅)soup.And many others get caught in nets,while fishermen are hunting other fish.More than half of all sharks are smaller than one metre long.“Some fishing methods are actually cleaning out the ocean,”said Dave Schofield,the manager of the aquarium’s museum.“The fishermen throw them away l ike rubbish.”
It is a worrying situation and some areas have taken measures in place to protect these special fish.
1.The main purpose of the shark exhibition is to __________________.
A.show how sharks are born and develop in the ocean
B.let people know more about sharks and protect them
C.let children learn not to fear sharks from an early age
D.show how shark species have fallen in the past few years
2.In the last but one paragraph,the underlined word“them”refers to _____________.
A.small sharks
B.fishing boats
C.fishing nets
D.fishing methods
3.What does Dave Schofield mean by saying “Some fishing methods are actually cleaning out the ocean”?
rge sharks cannot be caught by some fishing methods.
B.Only small sharks can be caught by some fishing methods.
C.The ocean is being made cleaner by some fishing methods.
D.Too many sharks are being killed by some fishing methods.
4.It can be inferred from the article that ____________________.
A.the writer is surprised to know sharks always hurt people
B.the writer is happy to know sharks are harmless to people
C.the writer is worried about the present situation of shark species
D.the writer is pleased to know the ocean is becoming much cleaner
5、 What do you know about the sea?We know that it looks very pretty when the sun is shining on it.We also know that it can be very rough when there is a strong wind.What other things do we know about it?
The first thing to remember is that the sea is very big.When you look at the map of the world you will find there is more water than land.The sea covers three quarters of the world.
The sea is also very deep in some places.It is not deep everywhere.Some parts of the sea are very shallow.But in some places the depth of the sea is very great.There is one spot,near Japan,where the sea is nearly 11 kilometres deep!The highest mountain in the world is about 9 kilometres high.If that mountain were put into the sea at that place,there would be 2 kilometres of water above it!What a deep place!
If you have swum in the sea,you know that it is salty.You can taste the salt.Rivers,which flow into the sea,carry salt from the land into the sea.Some parts
of the sea are saltier than other parts.There is one sea,called the Dead Sea,which is very salty.It is so salty that swimmers cannot sink!Fish cannot live in the Dead Sea!
In most parts of the sea,there are plenty of fishes and plants.Some live near the top of the sea.Others live deep down.There are also millions of tiny living things that float in the sea.These floating things are so small that it is hard to see them.Many fish live by eating these.
The sea can be very cold.Divers who go deep down in the sea know this.On the top the water may be warm.When the diver goes downwards,the sea becomes colder and colder.Another thing happens.When the diver goes deeper,the water above presses down on him.It squeezes him.Then the diver has to wear clothes made of metal.But he cannot go very deep.Some people who wanted to go very deep used a very strong diving ship!They went down to the deepest part of the sea in it.They went down to a depth of eleven kilometres!
1.When does the sea look beautiful?
A.When it is calm.
B.When the weather is fine.
C.When there is a strong wind.
D.When there is storm.
2.Why does the author cite(引用)the sea somewhere in Japan?
A.To show that the sea in some places is very deep.
B.To show that the sea in some places is very rough.
C.To show that its depth is 9 kilometres greater than the height of the highest mountain.
D.To show that its depth is 11 kilometres greater than the height of the highest mountain.
3.Which of the following statements about the Dead Sea is NOT true?
A.There are plenty of fishes in it.
B.It is a safe place for swimmers.
C.It is extremely salty.
D.No fish can be found in it.
4.Why can’t people go very deep in the sea?
A.Because the deepest part of the sea is very cold.
B.Because the deepest part of the sea is very rough.
C.Because the pressure of water at great depths is unendurable(无法忍受的).
D.Because the deepest part of the sea is very salty.
6、 If a diver surfaces too quickly, he may suffer the bends. Nitrogen(氮) dissolved(溶解) in his blood is suddenly liberated by the reduction of pressure. The consequence, if the bubbles(气泡) accumulate in a joint, is sharp pain and a bent body—thus the name. If the bubbles from in his lungs or his brain, the consequence can be death.
Other air-breathing animals also suffer this decompression(减压) sickness if they surface too fast:whales, for example. And so, long ago, did ichthyosaurs. That these ancient sea animals got the bends can be seen from their bones. If bubbles of nitrogen form inside the bone they can cut off its blood supply. This kills the cells in the bone, and consequently weakens it, sometimes to the point of collapse. Fossil(化石) bones that have caved in on themselves are thus a sign that the animal once had the bends.
Bruce Rothschild of the University of Kansas knew all this when he began a study of ichthyosaur bones to find out how widespread the problem was in the past. What he particularly wanted to investigate was how ichthyosaurs adapted to the problem of decompression over the 150 million years. To this end, he and his colleagues traveled the world’s natural-history museums, looking at hundreds of ichthyosaurs from the Triassic period and from the later Jurassic and Cretaceous periods.
When he started, he assumed that signs of the bends would be rarer in younger fossils, reflecting their gradual evolution of measures to deal with decompression. Instead, he was astonished to discover the opposite. More than 15% of Jurassic and
Cretaceous ichthyosaurs had suffered the bends before they died, but not a single Triassic specimen(标本) showed evidence of that sort of injury.
If ichthyosaurs did evolve an anti-decompression means, they clearly did so quickly—and, most strangely, they lost it afterwards. But that is not what Dr Rothschild thinks happened He suspects it was evolution in other animals that caused the change.
Whales that suffer the bends often do so because they have surfaced to escape a predator(捕食动物) such as a large shark. One of the features of Jurassic oceans was an abundance of large sharks and crocodiles, both of which were fond of ichthyosaur lunches. Triassic oceans, by contrast, were mercifully shark-and crocodile-free. In the Triassic, then, ichthyosaurs were top of the food chain. In the Jurassic and Cretaceous, they were prey(猎物) as well as predator—and often had to make a speedy exit as a result.
1.Which of the following is a typical symptom of the bends?
A.A twisted body.
B.A gradual decrease in blood supply.
C.A sudden release of nitrogen in blood.
D.A drop in blood pressure.
2.The purpose of Rothschild s study is to
see .
A.how often ichthyosaurs caught the bends
B.how ichthyosaurs adapted to decompression
C.why ichthyosaurs bent their bodies
D.when ichthyosaurs broke their bones
3.Rothschilds finding stated in Paragraph
4 .
A.confirmed his assumption
B.speeded up his research process
C.disagreed with his assumption
D.changed his research objectives
4.Rothschild might have concluded that
ichthyosaurs .
A.failed to evolve an anti-decompression means
B.gradually developed measures against the bends
C.died out because of large sharks and crocodiles
D.evolved an anti-decompression means but soon lost it
7、下面短文中有10处语言错误。

请在有错误的地方增加、删除或修改某个单词。

Dear Nancy,
I'm so glad to receive your letter invite me to your lecture in the city library. I'd very much like to learn something about American custom and cultures, and a friend of mine is coming to pay me a visit. And since this is for the first time that he has come here, I would have to meet them at the railway station at 7:00 p. m.next Saturday. It is really pity that I can't make it to communicate with you face to face, for that I'm terribly sorry.
Anyway, I'm great grateful to you for your kind invitation. If there is other chance in future, I will try every possible means to learn from you.
Yours,
Li Hua
8、全球变暖是人类在21世纪面临的一个重要而又棘手的环境问题,它直接关系到人类的生存,所以引起了越来越多的人的关注。

请你根据以下提示,写一篇100词左右的英语短文,为“节能减排”献计献策。

背景:随着经济的发展,更多的温室气体被排放,其中大约70%为二氧化碳,这也是全球变暖
的主要原因之一。

后果:海平面上升,自然灾害频发。

措施:
1. 多使用清洁能源,少用煤、油;
2. 尽可能以步代车;
3. ......
_______________________________________________________________________________ _________________________
_______________________________________________________________________________ _________________________
_______________________________________________________________________________ _________________________
答案以及解析
1、答案及解析：
答案：1.out; 2.of; 3.to; 4.in; 5.down; 6.out; 7.into; 8.on
2、答案及解析：
答案：1.in danger of; 2.reflect on; 3.upside down; 4.was scared to death; 5.become aware of; 6.in the distance; 7.a pack of; 8.having a good feed on 9.hold up; 10.brought in
3、答案及解析：
答案：1.B; 2.A; 3.B; 4.D; 5.C; 6.A; 7.A; 8.B; 9.D; 10.B; 11.D; 12.C; 13.A; 14.B;
15.C; 16.D; 17.C; 18.B; 19.C; 20.B
解析：1.逻辑推理题。

从下文得知John Perry在此想使鲨鱼游到海里,他好涉水到岸上去。

2.逻辑推理题。

由句意可知,他必须在鲨鱼看到他之前游上岸。

故选A。

3.逻辑推理题。

根据上一句“He saw the sharks roling and playing.”可知,鲨鱼现在不再饥饿。

4.词义辨析题。

根据常识,鲨鱼可以闻到血腥味。

fear“害怕”;taste“品
尝”;drink“喝”;smell“闻,嗅”。

故选D项。

5.逻辑推理题。

Perry将刀子割进肉里以便流出一些血,排除A、B两项;meat为动物的肉的总称,而flesh可以指人的肉,故选C项。

6.逻辑推理题。

当血流得足够多时,Perry就要止血,故用stop。

7.词义辨析题。

由句意知,Perry用布条拉着放到水里的衬衫。

pull“拉着”;wrap“捆
绑”;connect“连接”;catch“抓住”,故选A。

8.词汇复现题。

根据下一句“He ran down the sand reef pulling the shirt and the sharks raced after it.”可知,B项符合句意。

9.词义辨析题。

由句意可知,Perry领着鲨鱼游离海岸。

“lead sb./sth.away from...”意为“领着某人/某物离开……”。

10.逻辑推理题。

他自己扔下布条,返回岸边。

故B项符合句意。

11.逻辑推理题。

Perry游了一半,“这时”转过身来,应用when。

12.词义辨析题。

形容鲨鱼的速度之快,它的鳍就像把水割开一样,故用cut。

13.词语辨析题。

因为后面有鲨鱼,Perry当然要向前游。

forward“向前”;backward“向后”;upward“向上”;downward“向下”。

14.逻辑推理题。

Perry露出头来是为了呼吸,故选B。

15.逻辑推理题。

此处指Perry用手指撑着而不是用脚蹬着爬上石头。

16.生活常识题。

根据常识,鲨鱼因血腥味和追逐而变得异常兴奋。

interested“感兴趣的”;excited“兴奋的”;frightened“受惊的,害怕的”;disappointed“失望的”。

17.逻辑推理题。

由上文可知,鲨鱼紧追Perry,Perry爬上了岸上的礁石,鲨鱼紧追其后,自然撞上了礁石。

18.逻辑推理题,这条鲨鱼只是受伤,当然是被其他鲨鱼活吃了。

lively“活泼的,活跃的”;alive“活着的”。

此处作伴随状语,表示被吃的时候是活着的。

19.习语搭配题。

struggle to one’s feet为固定搭配,意为“挣扎着站起来”。

20.逻辑推理题。

尽管已不再饥饿,鲨鱼仍在吃着。

故B项符合句意。

4、答案及解析：
答案：1.B; 2.A; 3.D; 4.C
解析：1.主旨大意题。

纵观全文可知,文章就是让人们进一步了解鲨鱼并保护它们。

2.词义猜测题。

根据上下文信息可知“them”指的是小鲨鱼。

3.细节理解题。

由倒数第二段,可知D项正确。

4.推理判断题。

由全文可知,作者的写作目的是保护鲨鱼,写作态度是对乱杀鲨鱼现状的担忧。

故C项正确。

5、答案及解析：
答案：1.B; 2.A; 3.A; 4.C
解析：1.细节理解题。

从第一段的“We know that it looks very pretty when the sun is shining on it.”可以看出B项正确。

2.推理判断题。

从第三段的“But in some places the depth of the sea is very great.”和“What a deep place!”可以看出是强调海洋的深度。

3.细节理解题。

从第四段的“Fish cannot live in the Dead Sea!”可以看出A项是错误的。

4.推理判断题。

由最后一段的“When the diver goes deeper,the water above presses down on him.It squeezes him.”可推知C项与题干吻合。

6、答案及解析：
答案： 1.A; 2.B; 3.C; 4.A
解析： 1.细节理解题。

根据the bends可定位到首段。

由The consequence ... is sharp pain and a bent body —thus the name. ”可知答案。

a bent body 与 a twisted body 是同义转换。

由第二句的“Nitrogen dissolve d in his blood is suddenly liberated by the reduction of pressure.”可知,此处是指 the bends形成的原因,故C、D项错误,而B 项文章没有提及。

2.推理判断题。

题干中的关键词是Rothschild’s study,由此可定位到第三段的前两句。

根据“to find out how widespread the problem was in the past …to investigate was how ichthyosaurs ada pted to the problem of decompression” 可知正确答案为B。

3.推理判断题。

根据第四段中的“…he assumed that signs of the bends would be rarer in younger fossils, reflecting their gradual evolution of measures to deal with decompression. Instead, he was astonished to discover the opp osite. ”可
知,Rothschild的假设理论与在研究过程中得出的结果是相反的,故选C。

4.推理判断题。

根据倒数第二段可知,Rothschild认为鱼龙在进化过程中反减压方式进化
失败,故正确答案为A。

7、答案及解析：
答案：Dear Nancy,
I'm so glad to receive your letter
invite
inviting
me to your lecture in the city
library. I'd very much like to learn something about American custom customs
and
cultures, and
but
a friend of mine is coming to pay me a visit. And since this is
for the first time that he has come here, I would
will
have to meet
them
him
at the
railway station at 7:00 p. m.next Saturday. It is really ˆa pity that I can't make
it to communicate with you face to face, for
that
which
I'm terribly sorry.
Anyway, I'm
great
greatly
grateful to you for your kind invitation. If there
is
other
another
chance in future, I will try every possible means to learn from you.
Yours,
Li Hua
解析：
1.第一句:invite→inviting。

考査分词。

此处是分词作后置定语,且letter和invite 是主动关系,故用inviting。

2. 第二句:custom→customs。

考查名词单复数。

custom作“风俗、习俗”时为可数名词同,此处指美国的习俗,不止一种习俗,且根据and后面的cultures 可知,用 customs。

3. 第二句:and→but。

考查连词。

根据语境可知前后句是转折关系, 故用but。

4.第三句:去掉the first time前的for。

考查固定句式. “It (this) is the first time+that 从句”为固定句式。

5.第三句:would→will。

考査时态。

根据后面的next Saturday可知此处用will。

6. 第三句:them→him。

考査代词。

指代上句的he,故用him。

7. 第四句:pity前加a。

考査固定句式。

It’s a pity that...表示“很遗憾……”。

8. 第四句:that→which。

考查定语从句。

此处是“介词for+关系词”引导的定语从句,先行词为整个主句,故用which。

9.第五句:great→greatly。

用副词修饰形容词,故用greatly。

10.第六句:other→another。

此处表示“另一个机会”,故用another。

8、答案及解析：
答案：
With the development of economy, more and more greenhouse gases are being given off into the air. CO2 makes up about 70% of the greenhouse gases, which is considered to be one of the greatest causes of global warming. It has harmful effects, causing the sea level to rise and many natural disasters to strike.
So we must take effective measures to save our planet. First, we should use more clean energy and less coal and oil. Second, we should go to work on fool or by bus instead of driving a car if possible. Third, we should plant more trees, because plants can turn CO2into oxygen. More importantly, we should form the habit of saving energy in our daily life.。