Unit 4 单元练习题I. 单选（选出最佳答案）（共20分）1. The childre n are very quiet; I won der what they are up _ . A agai nst B for C to D with comewill dreams more and more tech no logy, and scie nee of developme nt 2. theB. miss ing; playedC. missed; play ingD. missed; playedabout 4. My brother is interested in history history ofAmerica rece ntly.A. the; aB. /; theC. the; /D. /; a 5.late tomorrow morning, you should set off on your own.A. Should I arriveB. I should arriveC. Had I arrivedD. I had arrived 6. Can you tell me a situati on these phrases are used? A. which B. where C. that D. whe n7. The expressi on on his face suggested that the football match was A. excited; excited B. excited; excit ing C. excit ing; excitedD. excit ing; excit ing8. This website is very useful. It has in formati on that we n eed.________A. ma nyB. littleC. a fewD. ple nty of9. Today more tha n 80 perce nt of the Australia nsin the six big cities ---------------------arou nd the coast.--------------A. live; locati ngB. liv in g; locati ngC. liv in g; locatedD. live; located10. The accide nt could have bee n much worse; fortu nately no _ w as done to the boy. D. help C. n eedA. stressB. harm11. ----I feel like a film this eve ning.------------——But I would like the football match on TV this eve ning.-----------A. seeing; watchingB. to see; to watchC. seeing; to watchD. to see; watching dan ger. protect as be so acti ons 12. Immediate should to the species in ani mal A. made B. take n C. do ne D. builtis the populati on of the areatrue. A. WithB. ToC. AsD. Of3. The girlwas last see n n ear the Central Park.A. miss ing; play ingin general. He is reading a book13.——About 4 million. Two third of the populationA. How ma ny, isB. How much, areC. What, isD. What, are14 .My sister a good cha nee to go abroad for further study of En glish. A. was provided B. was prese nted C. was supplied D. was offered 15 .What effects will the Olympic Games have the host city? A. in B. off C. on D. for16. --- What did you suggest __ , Joa n? ---I suggested ___ h er father for his opinion. A. her doing, to ask do;she D. B she did; ask ing C. her to do; to ask ask ingoffer. , for the job we rejected because your major( the related work ing experie nee.(缺乏)you lacks more C. In other words D. In a word 'A. As a result B. What18. There is no from my bedroom wi ndow except for some factory chi mn eys. ____A. viewB. pictureC. sightD. look19. I think my duty to help people in trouble. ____A. thatB. itC. whatD. which20. --- Would you like to stay at home or go out for a walk? s all the same to me. ----.It'___________ s up to you. t mention. D. It'A. All right. B.That's all right. C. Do n'II .单词拼写：根据首字母提示或汉语意思填上合适的单词。

1. His bad readi ng habits have a _____ h is eye-sight.)of a new town. 2. The serious earthquake caused the total ________________ (毁灭)in the crowds. 消失 3. A few minutes later, the old man___________ (4. He o ____ me 300 dollars for that televisi on.)that you have bee n employed.正式 5. You are in formed (通矢知)to attend the meeting. 安排 6.He has _____________ (7. His accent s here. 8. Scie ntists ofte n do s research.)a request from the old man.9. He ________ (拒绝)will be put into prison forsettingfire.________ (罪犯 s Day. 11. There are all kinds of _____________ ( onChildre n'their stude nts with poor does has a lot of work to help those The 12. Hope studies. )at the meeti ng last week. 13. The old man made a very good ________ ( a h eve nt of Chi na.)目的地 15. Beijing is our final _________________ (16. I know the place well, so let me be your g _______ .)by the Cha ngjiang River.坐落在 17. My hometow n is __________ (). 18. I want to owna house at the __________ ( 海滨)19. They lived in the ____________ (市郊).20. They are on a wedding _________ ( 旅游 分)(共//III. 单句改错：(只改动去掉//添加 一个单词)15stude nts.ten of con sisted group the is, That stude nts. ten of up made is group The 1.farmers.专业)is not fit 17. You are (------- )for me _ he was a stranger10. It is said that this娱乐活动)for children 建议 14. This is2. The day they looked forward to coming at last.3. Can you imagi ne what difficulty I had settled the problems?4. They spe nt the whole ni ght lock ing in the room.5. It is not surprised that he did n't win the prize.6. New Zealand was the first country to having the eight-hour work time.7. They have got in touch with each other for 3 years.8. Paul does n't have to be made lear n. He always works hard.9. They two strangers are talking warmly as if they are old friends.10. My suggestion is that a plan for study will be made at first.11. Though this is her first film, everybody thinks high of her act ing skills.12. Sudde nly, the two plates jumped and an earthquake is happe n.13. He hopes his dream that he will become an actor will be come true.14. He is lying on the grassla nd, with his eyes focus ing on the blue sky.15. He told her whether she could repeat the address or not.:完成句子，把下列句子改为同义句IV.1. What do you think he is busy with now?——What do you think he now? ____ ____2. Learning every subject well is greatly important to us all.——Learni ng every subject well is to us all.be un happy. (if)You won't go. She will 3.4. His brother advised him to settle down in New York.——His brother suggested that in New York. ------- ------ ---------t go abroad with us. 5. As he is in poor health, he won'——If he in good health,he go abroad with us. ------ ----------—— he in good health, he go abroad with us. ------- --------------6. Sydney is a beautiful city. It has a populati on of just un der three and a halfmillio n people.(with)7. Auckland is the largest city in New Zealand. It is also an important center for bus in ess and in dustry. (as well as)（共10分）V.阅读weather not always kept Man earth has How much rain fallen on the in the past? has records. Because scie ntists n eed a way to lear n about past rain fall, they study the tree rin gs.treea ), 树皮(bark its Under year. by year growing keeps )(树干trunk tree's Aadds a layer of new wood each year it lives. If you look at a tree stump, you can see the layers. They arecalled annual ring ( 年轮).On some trees, all of the rings are of the same width. But the ponderosa(美国黄松)that grows in the American southwest have rings in different widthes. The soil in he southwest is dry. The pines depe nd on rain fall for water. I n a year of goodrainfall, they form wide rings. In a dry year, they form narrow ones.Scientists do not have to cut down a pine to study its rings. With a special tool,they remove a narrow piece of wood from the trunk without harming the tree. Then they look at the width of each ring to see how much rain fell in the year it formed.Some pines are hundreds of years old and have hundreds of rings. These rings are from an ann ual record of past rain fall in the southwest.1. We could infer from the passage that _____ .A. a tree grows faster when it has a lot of waterB. scientists cut down trees to study tree ringsC. pine trees form rings of he same width every yearD. the pon derosa grows in he southeast2. A tree grows a new layer of wood _____ .A. each weekB. whe never it rainsC. every yearD. every seas on3 On the whole, the passage is about ____ .A. why the tree tru nks grow biggerB. why scientists study tree ringsC. trees that lived hun dreds of years agoD. the pon derosa in the US4. The scientists ____ to know how much rain fell in a certain area in the past.A. climbed up the treeB. moved the pi ne treeC. removed a piece of woodD. studied the width of he tree rings5. Which of he follow ing is true accord ing to the passage?A. You ng trees have fewer ann ual rings than old one.B. The trunk of a tree n ever cha nges in size.C. Trees in the southwest do not n eed rain.D. Soil in the southwest is fit for the growth of trees.Fin ders, Keepers?I worked for a short time as a casher（岀纟内员）at a restaura nt a few mon ths ago.I also helped clear off the tables whe n it was especially busy. One ni ght, just before Christmas, I found a large black wallet on the floor n ear one of the tables. I guessI should have checked it to find out who was the own er, but I was busy at the time. Also, I imagined that if the wallet contained anything Valuable, the owner would beback. Sure enough, an hour later a man came up to the counter（柜台）and asked if anyone had found a wallet, I asked him to describe the lost wallet, and after he describedit exactly, I gave him the wallet. He expressed his sin cere tha nks whe n I han ded itto him. He asked me if I had opened it, and when I told him No, he opened it rightaway and showed that it contained n early $800 in cash（现金）.I gasped（叹息）as he took out a twen ty-dollar bill and han ded it to me .A reward for your hon esty, hesaid and the n tur ned and walked away.Thinking about it later, I began wondering whether I would have been so honestif I had known what was in the wallet! I think that if there had been no Way to findthe owner and no one had returned to claim （认领）it, I might have kept it, But italso came into my mind that I had in fact saved some on e's Christmas pla ns by findingand returni ng the wallet. The good feeli ng it gave me was worth more tha n anything money could buy.6. This story happe ned in a restaura nt. _______A. one ni ght in NovemberB. one day in DecemberC. a few weeks before ChristmasD. a couple of days before December 257. Which of the following is true?A. The owner of the wallet found a twen ty-dollar bill gone.B. The writer was n't surprised as the man gave him a reward.C. Nothing in the wallet was missing.D. The man was extremely surprised whe n he got his wallet back.8. The writer returned the wallet to the owner because -------------A. he thought Christmas was comingB. being hon est, he did n't care much about moneyC. the owner came back too soonD. he did n't know that it contained so much money9. The title of the passage Finders Keepers? implies that the saying, Finderskeepers, losers weepers -------------A. is n ot always trueB. is proved in this storyC. requires an an swerD. is still a questi on10. Which of the followi ng is NOT true?A. He accepted a reward of $20B. He did n't retur n the wallet un til the owner retur ned.C. He regretted that he had returned the wallet.D. He felt very happy after he returned the wallet.An In troducti on to Icela ndGeographyIcela nd, an isla nd about the size of Ken tucky, lies in the no rth Atla ntic Ocea nand east of Greenland. It just touches the Arctic Circle（北极圈）. ___ 11 __ .More than 13% of it is covered by sno wfields and glaciers（冰川），and most of its people live in the 7% of the isla nd that is n ear the sea and suitable for crops to grow.The Gulf Stream keeps Icela nd's climate warmer tha n what one would expect from anisla nd so n ear the Arctic Circle.HistoryThe earliest settlers of Iceland were Irish. In 1262-1264, Iceland came underNorwegia n rulebut was passed to Danish con trol through the un ificati on of the kin gdoms of Norway, Swede n, and Denmark in 1397.the Act of Union , through as a separate state. In 1918, Denmark recog ni zed Icela nd,It rema in ed, however, un der the Danish con trol in n ame. 12 __ .During the German occupation （占领）of Denmark in World War II, British, thenAmerica n, troops （军队）occupied Icela nd and used it for an air base.EconomyIceland's economy depends highly on exporting （岀口）. Marine products（海产品）make up the majority of goods exported. Other importa nt exports in clude machi nery and electro nic equipme nt for the fish ing in dustry, software, and woole n goods.__ 13 ___ .The main imports are petroleum products, food and textiles. Iceland's main trade part ner is Germa ny.Tourism__ 14 ___ I n the last decade, tourism has grow n by 11% on average each year. Arou nd360,000 people visited Icela nd in 2004, but since the n the n umber has in creased greatly and the number was 485,000 in 2007 and over 500,000 in 2008. Tourist attractio ns inIcela nd mai nly come from its special geological la ndscape, in cludi ng glaciers,waterfalls, hot spri ngs and lakes. __ 15__ The no rther n lights also can be see n theredue to Icela nd's locati on and this attracts many visitors.根据短文内容，从下面的选项中选出能填入空白处的最佳选项。