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Unit 4 Our World综合能力演练I. 单项选择1. Ann used the computer for shopping, _______?A. used sheB. usedn’t sheC. did sheD. didn’t she2. You must _______ the traffic lights when you cross the road.A. pay attention toB. pay attentions toC. pay attention onD. pay attentions on3. —How many students are there in your school?—_______ students, I think.A. Thousand ofB. Three thousandsC. Three thousandD. Three thousands of4. —Why do you like living in the countryside?—Because there’s _______ noise and _______ cars there.A. less; fewerB. fewer; lessC. less; lessD. fewer; fewer5. Don’t make me _______ the clothes. I’m too tired!A. washingB. to washC. washD. washed6. —I think dumplings are _______ more delicious than noodles.—I don’t agree with you.A. muchB. veryC. tooD.so7. —My aunt goes to climb Mount Gu every Sunday.—Oh? But she _______ hate climbing mountains.A. used toB. use toC. uses toD.is used to8. Your classroom is so dirty. Everyone should keep it _______.A. dryB. openC. quietD. clean第 1 页
9. —Wow, your school is great!—It is _______ school in the city.A. much more beautifulB. much beautiful C. the most beautifulD. beautiful10. Blue whales are the largest and heaviest animals in the world, but they _______ thesmallest sea animals.A. feed inB. live inC. feed onD. fed on[真题链接]1. I was looking for a birthday gift for my mother, but I couldn’t find ______ suitable.A. something B. anything C. nothing D. everything2. —Excuse me, may I keep the book a little longer? —Sorry. You ________ return it today.A. mustB. mustn'tC. canD. can't3. —______ will the fog and haze last? — I’ve no idea. There is no sign of an end.A. How soonB. How far C. How longD. How often II. 完形填空We live in the“computer age”. Long ago computers couldn’t do 1 .They were very big and2 .They used a lot of energy(能量). Only a few people were 3 in them. Today computers are 4and cheaper. They can 5 difficult work.Computers have 6 important for many reasons. They work faster and make fewer mistakes.They can remember much information. A computer can work out millions of problems 7 a few seconds. A person might need years 8 so many problems.People now use computers in nearly every kind of work. Computers are very useful and the 9 of computers is growing. More computers mean more jobs for people, 10 people need torun(操作) and mend them.Would you like to learn how to run a computer?第 2 页
1. A. many B. muchC. a lot ofD. lots of2. A. cheap B. cheaperC. expensiveD. more expensive3. A. interest B. interestingC. interestsD. interested4. A. small B. smallerC. bigD. bigger5. A. doB. makeC. turnD. eat6. A. turnB. gotC. isD. become7. A. withB.inC. forD.at8. A. works out B. workC.to work outD.to work9. A. useB. usefulC. uselessD. to use10. A. whyB. howC. becauseD. whatIII. 阅读理解ADo you know why different animals or pests (害虫) have their special colors？Colors onthem seem to be used mainly (主要地) to protect themselves.Some birds like eating locusts (蝗虫), but birds cannot catch them easily. Why? Becauselocusts change their colors according to the colors of crops (庄稼). When crops are green, locustslook green. But as the harvest time comes, locusts change to the same brown color as crops have.Some other pests with different colors from plants are easily found and eaten by others, so theyhave to hide (隐藏) themselves and appear (出现) only at night.If you study animal life, you’ll find the main use of coloring is to protect themselves. Bears,lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have colors much like the trees.A kind of fish in the sea can send out a kind of very black liquid (液体) when it faces danger.While the liquid spreads out, its enemies (敌人) cannot find it, so it can escape (逃跑) at once.That is why it can live long, though it is not strong at all.1. From the passage we learn that locusts _______.A. are small animalsB. are easily found by birdsC. are dangerous to their enemiesD. change their colors to protect themselves第 3 页
2. How can pests with different colors from plants keep out of danger?A. They run away quickly.B. They have the colors much like their enemies.C. They hide themselves by day and appear at night.D. They have to move quietly.3. Bears and lions can keep safe because _______.A. they have the colors much like the treesB. they move quietlyC. they like brown and grey colorsD. they live in forests4. Why can the kind of fish live long?A. Because it is very big and strong.B. Because it can send out a kind of very black liquid to help it escape from its enemies.C. Because it can send out a kind of liquid to kill its enemies.D. Because it swims faster than any other fish.5.Which is the best title(标题) of this passage?A. The Change of Colors for Animals and Pests.B. Colors of Different Pests.C. The Main Use of Colors for Animals and Pests.D. Some Animals and Pests.BZhalong is a nature reserve in Heilongjiang in northeast China. It is one of the world’s mostimportant wetlands. The area provides food and shelter for wildlife. It is an ideal home fordifferent kinds of plants, fish and birds.Many birds live comfortably in Zhalong Nature Reserve all year round, while some only stayfor a short time. There are many fish in the wetlands, and the birds can easily catch them for food.第 4 页
Zhalong Nature Reserve is an important living area for the rare red-crowned cranes. There are notmany red-crowned cranes in the world. Some of them live in Zhalong.Some people want to change the wetlands to make more space for farms and buildings. Thismeans that there will be less and less space for wildlife.More and more birds are in danger because they do not have enough living space. Many ofthem died. The Chinese government wants to protect these endangered birds, and they can be safein Zhalong.Every year a lot of tourists go to Zhalong to watch birds. This year members of our Birdwatching Club are going to study the different kinds of birds in Zhalong and the changes in theirnumbers. The study begins next month.We do a bird count once a year. We are now inviting secondary school students to help. Weneed more people to help us count and do something to help the birds. Many people do notunderstand the importance of the wetlands. We hope this information will help them understandand make them actively take action to protect wildlife.6. What is the best title of the passage?A. Less and Less Space for WildlifeB. Many Tourists Watch birds in Zhalong YearlyC. Zhalong is a Famous Scenic SpotD. Zhalong A Special Place7. The shelter in the first paragraph means ______.A. a place to live or stay B. a large zooC. a place to hunt animals D. a large park8. Which of the following sentences is false?A. There are a lot of red-crowned cranes in other parts of the world.B. Some birds go to Zhalong for a short stay.C. Zhalong nature reserve is the comfortable home of many birds.D. Birds can find food without difficulty in Zhalong.9. Why are more and more birds endangered? Because ______.第 5 页
A. many tourists watch them B. many of the birds diedC. people have less and less place D. their living place is less and less10. This passage is written to______.A. ask people to do something for birds.B. help people learn about protecting wildlife.C. make people understand how important the wetlands are.D. ask students all over the world to watch birds.【答案与解析】I. 单项选择。1.D。此处use ... for ... 意为“用……来(做某事)”，句中used是过去式，所以在反义疑问句中应借助助动词did，根据“前肯后否”原则，故选D。2.A。考查固定搭配pay attention to… ，意为“注意……”。3.C。考查数词hundred/thousand等。如果前面有具体数字，其后不跟-s，也不加of，反之，其形式为：hundreds of(数百的)，thousands of(数千的)，故选C。4.A。考查形容词比较级。分析句意“你为什么喜欢住在农村？”，“因为那儿噪音少车也少。”第一个空格后的noise是不可数名词,第二个空格后的cars是可数名词的复数。从选项分析看, less是little的比较级，fewer是few的比较级，都是“少数的，几乎没有” 的意思，故选A。5.C。考查非谓语动词。根据make sb. do sth. 句式，make后面省略to的动词不定式在这里充当宾语补足语。故可排除A、B和D，选C。6.A。考查副词修饰比较级的用法。分析句子，空格后是比较级形式，由于very, too, so不能修饰比较级，much则可以，表示“更……”的意思，故选A。7.A。考查固定用法。used to “过去常常”；use作为动词,意为“使用”。be used to “习惯于”。上下句意思:“每个星期日，我姑姑都去爬山。”“哦？但是她过去讨厌爬山。”故选A。8.D。考查keep + n. +adj. 的用法。由句意“你们的教室太脏了，所有人都应该保持教室干净。”可知选D。9.C。考查形容词最高级。分析句子，空格后是in the city，故应用最高级，由于beautiful是多音节，其最高级用the most beautiful,故选C。第 6 页
书我可以借长一点时间吗？——歉抱很，你今天必须把它还回
来。本题考查情态rrSo动词。根据答语y. 可知今天必须归还A，故选项。3. C。句意：——
霾将雾持续多久知？—我不—道，还没要有束结的迹象查。本题考特殊疑问副词词
组show 。oon多久以后；how far多远(对空间距离提多)；how l问ngo久(对时段提间
问)；how often多久一次(对频率提)问。last持续，通how long搭配。故C常与项。II. 完形填空。1.B。考查词义
区别much 在这里作代词，充当。do的宾语。2.C。考查上下
文推测。许多年前的计算机既大又贵and。前是big，故其后也应用原级。3.D。考查词
组对,故用be interested固定搭配。由于主语是人in ……感兴趣B4.。。考查上下
推测文。上说文的过去计算机
9. —Wow, your school is great!—It is _______ school in the city.A. much more beautifulB. much beautiful C. the most beautifulD. beautiful10. Blue whales are the largest and heaviest animals in the world, but they _______ thesmallest sea animals.A. feed inB. live inC. feed onD. fed on[真题链接]1. I was looking for a birthday gift for my mother, but I couldn’t find ______ suitable.A. something B. anything C. nothing D. everything2. —Excuse me, may I keep the book a little longer? —Sorry. You ________ return it today.A. mustB. mustn'tC. canD. can't3. —______ will the fog and haze last? — I’ve no idea. There is no sign of an end.A. How soonB. How far C. How longD. How often II. 完形填空We live in the“computer age”. Long ago computers couldn’t do 1 .They were very big and2 .They used a lot of energy(能量). Only a few people were 3 in them. Today computers are 4and cheaper. They can 5 difficult work.Computers have 6 important for many reasons. They work faster and make fewer mistakes.They can remember much information. A computer can work out millions of problems 7 a few seconds. A person might need years 8 so many problems.People now use computers in nearly every kind of work. Computers are very useful and the 9 of computers is growing. More computers mean more jobs for people, 10 people need torun(操作) and mend them.Would you like to learn how to run a computer?第 2 页
1. A. many B. muchC. a lot ofD. lots of2. A. cheap B. cheaperC. expensiveD. more expensive3. A. interest B. interestingC. interestsD. interested4. A. small B. smallerC. bigD. bigger5. A. doB. makeC. turnD. eat6. A. turnB. gotC. isD. become7. A. withB.inC. forD.at8. A. works out B. workC.to work outD.to work9. A. useB. usefulC. uselessD. to use10. A. whyB. howC. becauseD. whatIII. 阅读理解ADo you know why different animals or pests (害虫) have their special colors？Colors onthem seem to be used mainly (主要地) to protect themselves.Some birds like eating locusts (蝗虫), but birds cannot catch them easily. Why? Becauselocusts change their colors according to the colors of crops (庄稼). When crops are green, locustslook green. But as the harvest time comes, locusts change to the same brown color as crops have.Some other pests with different colors from plants are easily found and eaten by others, so theyhave to hide (隐藏) themselves and appear (出现) only at night.If you study animal life, you’ll find the main use of coloring is to protect themselves. Bears,lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have colors much like the trees.A kind of fish in the sea can send out a kind of very black liquid (液体) when it faces danger.While the liquid spreads out, its enemies (敌人) cannot find it, so it can escape (逃跑) at once.That is why it can live long, though it is not strong at all.1. From the passage we learn that locusts _______.A. are small animalsB. are easily found by birdsC. are dangerous to their enemiesD. change their colors to protect themselves第 3 页
2. How can pests with different colors from plants keep out of danger?A. They run away quickly.B. They have the colors much like their enemies.C. They hide themselves by day and appear at night.D. They have to move quietly.3. Bears and lions can keep safe because _______.A. they have the colors much like the treesB. they move quietlyC. they like brown and grey colorsD. they live in forests4. Why can the kind of fish live long?A. Because it is very big and strong.B. Because it can send out a kind of very black liquid to help it escape from its enemies.C. Because it can send out a kind of liquid to kill its enemies.D. Because it swims faster than any other fish.5.Which is the best title(标题) of this passage?A. The Change of Colors for Animals and Pests.B. Colors of Different Pests.C. The Main Use of Colors for Animals and Pests.D. Some Animals and Pests.BZhalong is a nature reserve in Heilongjiang in northeast China. It is one of the world’s mostimportant wetlands. The area provides food and shelter for wildlife. It is an ideal home fordifferent kinds of plants, fish and birds.Many birds live comfortably in Zhalong Nature Reserve all year round, while some only stayfor a short time. There are many fish in the wetlands, and the birds can easily catch them for food.第 4 页
Zhalong Nature Reserve is an important living area for the rare red-crowned cranes. There are notmany red-crowned cranes in the world. Some of them live in Zhalong.Some people want to change the wetlands to make more space for farms and buildings. Thismeans that there will be less and less space for wildlife.More and more birds are in danger because they do not have enough living space. Many ofthem died. The Chinese government wants to protect these endangered birds, and they can be safein Zhalong.Every year a lot of tourists go to Zhalong to watch birds. This year members of our Birdwatching Club are going to study the different kinds of birds in Zhalong and the changes in theirnumbers. The study begins next month.We do a bird count once a year. We are now inviting secondary school students to help. Weneed more people to help us count and do something to help the birds. Many people do notunderstand the importance of the wetlands. We hope this information will help them understandand make them actively take action to protect wildlife.6. What is the best title of the passage?A. Less and Less Space for WildlifeB. Many Tourists Watch birds in Zhalong YearlyC. Zhalong is a Famous Scenic SpotD. Zhalong A Special Place7. The shelter in the first paragraph means ______.A. a place to live or stay B. a large zooC. a place to hunt animals D. a large park8. Which of the following sentences is false?A. There are a lot of red-crowned cranes in other parts of the world.B. Some birds go to Zhalong for a short stay.C. Zhalong nature reserve is the comfortable home of many birds.D. Birds can find food without difficulty in Zhalong.9. Why are more and more birds endangered? Because ______.第 5 页
A. many tourists watch them B. many of the birds diedC. people have less and less place D. their living place is less and less10. This passage is written to______.A. ask people to do something for birds.B. help people learn about protecting wildlife.C. make people understand how important the wetlands are.D. ask students all over the world to watch birds.【答案与解析】I. 单项选择。1.D。此处use ... for ... 意为“用……来(做某事)”，句中used是过去式，所以在反义疑问句中应借助助动词did，根据“前肯后否”原则，故选D。2.A。考查固定搭配pay attention to… ，意为“注意……”。3.C。考查数词hundred/thousand等。如果前面有具体数字，其后不跟-s，也不加of，反之，其形式为：hundreds of(数百的)，thousands of(数千的)，故选C。4.A。考查形容词比较级。分析句意“你为什么喜欢住在农村？”，“因为那儿噪音少车也少。”第一个空格后的noise是不可数名词,第二个空格后的cars是可数名词的复数。从选项分析看, less是little的比较级，fewer是few的比较级，都是“少数的，几乎没有” 的意思，故选A。5.C。考查非谓语动词。根据make sb. do sth. 句式，make后面省略to的动词不定式在这里充当宾语补足语。故可排除A、B和D，选C。6.A。考查副词修饰比较级的用法。分析句子，空格后是比较级形式，由于very, too, so不能修饰比较级，much则可以，表示“更……”的意思，故选A。7.A。考查固定用法。used to “过去常常”；use作为动词,意为“使用”。be used to “习惯于”。上下句意思:“每个星期日，我姑姑都去爬山。”“哦？但是她过去讨厌爬山。”故选A。8.D。考查keep + n. +adj. 的用法。由句意“你们的教室太脏了，所有人都应该保持教室干净。”可知选D。9.C。考查形容词最高级。分析句子，空格后是in the city，故应用最高级，由于beautiful是多音节，其最高级用the most beautiful,故选C。第 6 页
书我可以借长一点时间吗？——歉抱很，你今天必须把它还回
来。本题考查情态rrSo动词。根据答语y. 可知今天必须归还A，故选项。3. C。句意：——
霾将雾持续多久知？—我不—道，还没要有束结的迹象查。本题考特殊疑问副词词
组show 。oon多久以后；how far多远(对空间距离提多)；how l问ngo久(对时段提间
问)；how often多久一次(对频率提)问。last持续，通how long搭配。故C常与项。II. 完形填空。1.B。考查词义
区别much 在这里作代词，充当。do的宾语。2.C。考查上下
文推测。许多年前的计算机既大又贵and。前是big，故其后也应用原级。3.D。考查词
组对,故用be interested固定搭配。由于主语是人in ……感兴趣B4.。。考查上下
推测文。上说文的过去计算机
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