精選大學(xué)英語四級考試全真預(yù)測試題一答案與解析

1、大學(xué)英語四級考試全真預(yù)測試題一答案與解析大學(xué)英語四級考試全真預(yù)測試題一答案與解析Part Writing【寫作思路】本文是一篇關(guān)于代溝的議論文。從代溝的現(xiàn)象開始討論，接著提出代溝產(chǎn)生的家庭原因以及社會原因?！緟⒖挤段摹縂eneration GapGeneration gap seems a hot topic between the old and the young. Parents complain that children dont show them proper respect and obedience, while children complain that their pa

2、rents dont understand them at all. Often they discover that they have very little in common.One cause of the generation gap is the opportunity that young people have to choose their own life. In traditional societies, children lived in the same area as their parents, married people their parents kne

3、w and approved of, and often continued the family occupation. In our society, people often move out of the home at an early age, marry or live with people their parents have never met, and choose occupations that are rather different. Parents often expect their children to be better than them. Howev

4、er, these ambitions for their children are another cause of the division between them. Finally, the speed of change in our society is another cause of it. In the traditional culture, people are valued for their wisdom, but in our society the knowledge of a lifetime may become out of date. No doubt,

5、the generation gap will continue to be a feature of our life. Its causes are rooted in the freedoms and opportunities of our society, and in the rapid pace at which society changes.Part Reading Comprehension(Skimming and Scanning)1. D) 2. B) 3. A) 4. D) 5. C) 6. A) 7. C) 8. feeling the vibrations of

6、 a struggling prey9. collagen fibers10. some fantastic involuntary changesPart Listening Comprehension (35 minutes)11-15: CBCDB16-20: CCDAC21-25: DBAAD26-30: DCBDC31-35: BDBDA36: choose; 37: variety 38: tradition 39: throughout 40: immigrants 41: experienced 42: overseas 43: enroll 44: Most of these

7、 institutions provide preparation courses for students who need to improve their English before they start university study 45: they are the most common type of courses taken by overseas students46: the chance to get to know the school where they will be studying and become more familiar with the Am

8、erican academic environment Part Reading Comprehension(Reading in Depth) (25 minutes)Section A 47. H)48. C)49. F)50. L)51. O)52. K)53. G)54. J)55. E)56. A)Section B 57. B) 58. C) 59. D) 60. A) 61. B)62. A)63. C)64. A)65. B) 66. D)Part Cloze67. D)68. A)69. C)70. B)71. A)72. C)73. D)74. B)75. A)76. C)

9、77. B)78. A)79. D)81. B)80. C)82. A)83. C)84. B)85. D)86. D)Part Translation87. would not have finished so early88. delaying making考89. to have no access來90. we may/might as well walk home91. singing and dancing to their hearts content具體解析Part Writing【寫作思路】本文是一篇關(guān)于代溝的議論文。從代溝的現(xiàn)象開始討論，接著提出代溝產(chǎn)生的家庭原因以及社會原

10、因。【參考范文】Generation GapGeneration gap seems a hot topic between the old and the young. Parents complain that children dont show them proper respect and obedience, while children complain that their parents dont understand them at all. Often they discover that they have very little in common.One cause

11、 of the generation gap is the opportunity that young people have to choose their own life. In traditional societies, children lived in the same area as their parents, married people their parents knew and approved of, and often continued the family occupation. In our society, people often move out o

12、f the home at an early age, marry or live with people their parents have never met, and choose occupations that are rather different. Parents often expect their children to be better than them. However, these ambitions for their children are another cause of the division between them. Finally, the s

13、peed of change in our society is another cause of it. In the traditional culture, people are valued for their wisdom, but in our society the knowledge of a lifetime may become out of date. No doubt, the generation gap will continue to be a feature of our life. Its causes are rooted in the freedoms a

14、nd opportunities of our society, and in the rapid pace at which society changes.Part Reading Comprehension(Skimming and Scanning)原文精譯動物的運動除了缺少劇情音樂之外，這看上去就像?大白鯊?影片中的一個場景：一條巨大的鯊魚在水中慢慢地游著，尾巴就像鐘擺一樣來回地擺動。突然，它敏感的皮膚神經(jīng)末梢感受到了獵物游動時發(fā)出的震動。瞬間，它就變成一臺高效致命的死亡機器。它繃緊肌肉，快速地在水中砍出一條通道。眨眼之間，它便用強有力的嘴巴咬住了它的獵物，一條大魚。隨后，它來回扭動

15、著頭，從獵物的身上撕下大塊大塊的肉，把它們吞了下去。很快地，獵食活動就結(jié)束了。為了生存而移動鯊魚追逐獵物的過程以一種夸張的方式證明了移動或者運動對于動物的重要作用。像鯊魚一樣，大局部的動物通過移動來發(fā)現(xiàn)食物。他們還利用移動來逃避敵人、尋找配偶、開拓新的地盤。移動的方法包括：爬行、跳躍、滑行、飛行、飄浮或者漫步。借助各種有助移動的創(chuàng)造，人類加強了其移動優(yōu)勢，可以在任何環(huán)境下移動。汽車、火箭、潛艇能把人類從深海運輸?shù)竭b遠(yuǎn)的月亮。然而，對于其他的動物而言，移動來源于數(shù)百萬年的進化。鯊魚是其中最成功的例子。它能夠以接近零的時間快速地捕獲獵物，這給科學(xué)家們留下了深刻的印象。但是，經(jīng)過仔細(xì)地研究，美國杜克

16、大學(xué)的海洋生物學(xué)家S. A. Wainwright、F. Vosburgh和J. H. Hebrank才發(fā)現(xiàn)了鯊魚是如何做到這一點的。在研究中，科學(xué)家們對位于佛羅里達(dá)州圣奧古斯丁海上樂園泳池中游泳的鯊魚進行了觀察。他們拍攝了鯊魚的運動情況，對它們進行了分析，同時也對鯊魚的皮膚和肌肉進行了研究。皮膚是關(guān)鍵生物學(xué)家們發(fā)現(xiàn)，鯊魚的皮膚是它們在水中高效游動的關(guān)鍵。鯊魚的皮膚中含有許多纖維，像子午線輪胎的內(nèi)部一樣交錯在一起。這些纖維被稱為膠原纖維。隨著它們的放松或拉緊，這些纖維可以儲存或釋放大量的能量。當(dāng)拉伸纖維時，纖維中蓄滿了能量，就像繃緊的弓弦一樣。能量被釋放后，纖維就松弛了。杜克大學(xué)的生物學(xué)家發(fā)現(xiàn)

17、，最大拉伸發(fā)生在鯊魚彎曲身體游動的時候。當(dāng)身體前后移動時，彎曲處外側(cè)的纖維受到強烈的拉伸，大量的潛能被儲存在纖維中。當(dāng)鯊魚朝另一個方向迅速掉頭時，這種能量就被釋放出來了。隨著能量在鯊魚身體兩側(cè)交替地儲存和釋放，它的尾巴就像鞭子一樣強烈地來回擺動。這種像皮鞭一樣的動作促使鯊魚像發(fā)射的子彈一樣在水中穿來穿去。能量的來源是什么讓纖維能存儲如此多的能量呢?在追尋答案的過程中，杜克大學(xué)的科學(xué)家們發(fā)現(xiàn)，鯊魚與子午線輪胎的相似性并不僅僅存在于皮膚上。正如子午線輪胎是由壓力膨脹的一樣，在鯊魚膠原輻射處的下方也有一個膨脹區(qū)。但是，鯊魚體內(nèi)的壓力可能來自于血液壓縮膠原纖維而產(chǎn)生的壓力，而不是來自于空氣的壓力。當(dāng)鯊

18、魚緩慢游動時，纖維內(nèi)的壓力相對較低。纖維比擬松弛時，鯊魚就能以銳角的角度彎身。在尋找食物或只是游動時，鯊魚以這種方式進行移動。但是，當(dāng)它發(fā)現(xiàn)重要的食物來源時，一些奇妙的變化就自動發(fā)生了。鯊魚內(nèi)部的壓力可能會增加10倍，膠原纖維在這種壓力下劇烈拉伸，蓄積了大量的能量。接著，這種能量被轉(zhuǎn)移到尾巴上，鯊魚快速運動起來，剩下的事情就可想而知了。海豚是速度最快的紀(jì)錄保持者海豚是另一種快速的海洋動物，這種海洋哺乳動物的速度為每小時20英里。研究海豚的生物學(xué)家們發(fā)現(xiàn)，就像鯊魚一樣，海豚的快速游動可以追溯到其皮膚。海豚的皮膚是這樣構(gòu)成的：它對流過其身體的水流產(chǎn)生的阻力很小。通常情況下，當(dāng)魚或其他動物在水中緩慢

19、游動時，水流會平穩(wěn)地流過它們的身體。這種平穩(wěn)的水流被稱為層流。然而，當(dāng)魚快速移動時，其周圍的水流就變得湍急起來。這種亂流使摩擦加大，降低了魚的速度。海豚的皮膚彈性很大，可以隨著水波的波形而彎曲。實際上，水波是被卷進了海豚皮膚的皺褶處。這樣，其余的水就以層流的方式從其身邊平穩(wěn)地流過。其他動物快速游動時，由于受到亂流的阻礙，其速度就降低了；但是，海豚卻能夠以破紀(jì)錄的速度在水中快速穿行。其他的低速動物并不是所有的動物都能像鯊魚和海豚一樣快速地游動。在運動效率方面最大的輸家可能是蛞蝓鼻涕蟲。它看起來就像沒有殼的蝸牛，其爬行過的地方會留下一條細(xì)細(xì)的蹤跡。它要使用大量的能量制造黏滑的黏液，以便在其上爬行。

20、移動同樣的距離，老鼠只需要其所消耗能量的十二分之一?？茖W(xué)家們認(rèn)為，由于蛞蝓鼻涕蟲利用能量的效率很低，所以它的生活必然受到一定的限制。換句話說，它們都被迫把自己束縛在很小的區(qū)域之中來搜尋食物和尋找適宜的生活條件。人類曾經(jīng)面臨過這樣的問題嗎?1.【答案】D)【解析】屬同義轉(zhuǎn)換題，此題是一種排除選擇題。根據(jù)題干中的中心詞“movement to do something，可以將答案定位在小標(biāo)題“Moving to Survive下第二段的前兩句話，“Like the shark, most animals use movement to find food. They also use locomo

21、tion to escape enemies, find a mate, and explore now territories。該句與題干是一種同義轉(zhuǎn)換，選項A)、B)和C)在原文中均有提及，所以不是正確選項；答案D)在原文沒有提及，所以是正確答案。2.【答案】B)【解析】屬細(xì)節(jié)推斷題。題干考查汽車、火箭和潛艇的例子是為了說明什么，其中的“examples of automobiles, rockets and submarines是關(guān)鍵詞，可以將答案定位在文章小標(biāo)題“Moving to Survive下第三段的前兩句話，“Humans have the added advantage of

22、 using their various inventions to move about in just about any kind of environment. Automobiles, rockets, and submarines transport humans from deep oceans to as far away as the moon，第二句話所舉例子正是為了說明第一句話的內(nèi)容，這與B)項意思一致，而其他選項在文中均未提及。3.【答案】A)【解析】屬細(xì)節(jié)推斷題。分析題干，此題考查鯊魚在水中快速游動的關(guān)鍵是什么。其中的“key是關(guān)鍵詞，可以將答案定位在小標(biāo)題“Skin

23、 Is the Key下首段的第一句話，“The biologists discovered that the skin of the shark is the key to the animals high efficiency in swimming through the water，這與選項A)完全一致，所以直接選擇A)即可。其他選項在文中均有提及，但是都不符合題干的要求。4.【答案】D)【解析】屬細(xì)節(jié)推斷題。題干中的“the Duke University scientists是關(guān)鍵詞，可以將答案定位在小標(biāo)題“Skin Is the Key下第二段的第一句話，“The Duke Un

24、iversity biologists have found that the greatest stretching occurs where the shark bends its body while swimming。這與選項D)的內(nèi)容完全一致，所以答案選D)項，而其他選項原文均未提及，為干擾項。5.【答案】C)【解析】屬細(xì)節(jié)推斷題。題干中“a belted radial tire是關(guān)鍵詞，可以將答案鎖定在文章小標(biāo)題“Source of Energy下第一段的第三句話，“Just as a radial tire is inflated by pressure, so, too, is

25、 the area just under the sharks collagen radials。其中的“just as和“so正說明了兩者的相似之處在于“inflated by pressure，所以答案應(yīng)該是C)。選項A)和B)是兩者的不同之處，選項D)在文中沒有提及。6.【答案】A)【解析】屬細(xì)節(jié)推斷題。題干中的關(guān)鍵詞是“a laminar flow，所以可以將答案鎖定在文章小標(biāo)題“Dolphin Has Speed Record下，根據(jù)該節(jié)第一段的倒數(shù)第三、四句話，“Normally when a fish or other object moves slowly through th

26、e water, the water flows smoothly past the body. This smooth flow is known as laminar flow.。題干是對這兩句話的改寫，所以正確答案是A)選項。其他三個選項的意思均不符合“a laminar flow的定義，與題干要求不符。7.【答案】C) HYPERLINK / 考試就到考試大【解析】屬同義轉(zhuǎn)換題。題干中“a slug和“a mouse均為關(guān)鍵詞，可以直接定位在小標(biāo)題“Other Animals Less Efficient下第一段的第二句話，“It uses so much energy . a mou

27、se traveling the same distance uses only one twelfth as much energy。題干是對該句的同義改寫，所以正確答案是C)12 times，其他選項均與原文內(nèi)容不符。8. 【答案】feeling the vibrations of a struggling prey【解析】鯊魚靠感受獵物游動的震動來發(fā)現(xiàn)獵物。9. 【答案】collagen fibers【解析】在Skin Is the Key中，第二、三句話，The fibers are called collagen fibers。10.【答案】some fantastic involu

28、ntary changes【解析】 在Source of Energy中，第二段倒數(shù)第一句話就是此題答案。Part Listening Comprehension (35 minutes)Section A11. M: Before we play again, Im going to buy a good tennis racket. W: Your shoes arent in very good shape, either. Q: What does the woman imply? 【解析】選C。女士說好似男士的鞋也壞了。女士的意思是要男士不但要買個好一點的球拍，也該換雙鞋了，選項C符

29、合題意。 12. M: Have you found a partner to work with on biology? The lab class is tomorrow. W: To tell you the truth, Ive been tied up with my chemistry course this week. Q: What can be inferred about the woman? 【解析】選B。女士答復(fù)說事實上她這周一直忙著化學(xué)呢，即她還沒有找到合作對象。A和C項誤解了be tied up with的含義，分別將該短語理解為“喜歡和“厭惡；D項是說太忙而沒有時

30、間學(xué)習(xí)化學(xué)，這與女士所說的“一直忙著學(xué)習(xí)化學(xué)相矛盾，注意too.to的表達(dá)方式。 13. M: Make thirty copies for me and twenty copies for Mr. Brown. W: Certainly, Sir. As soon as I finish typing the letter. Q: What is the probable relationship between the two speakers? 【解析】選C。對話中的copies和typing都是在辦公室場景中出現(xiàn)頻率非常高的詞語。另外，男士的祈使語氣和女士對男士的稱呼(Sir)有助于判

31、斷他們的上下級關(guān)系。 14. W: It must be the first time for you to be aboard a warship. M: Dont you know that Ive been in military service in the Navy for years? Q: What can we say about the man? 【解析】選D。女士推測這是男士第一次登上軍艦，男士用否認(rèn)疑問句的形式對此予以了否認(rèn)，說以前他就曾在海軍服過兵役。即他之前就登上過軍艦，故D為答案。 15. W: How did your interview go? M: I cou

32、ldnt feel worse about it. The questions were very fair but I seemed to find no answers for all of them. Q: How does the man feel about the interview? 【解析】選B。I couldnt feel worse about it指I feel the worst，這說明男士的面視并不理想，B是對他心情的正確描述。比擬級用于否認(rèn)結(jié)構(gòu)可表示“最不過。如Nothing better(那最好不過了)。 16. M: I cant find my lunch b

33、ox anywhere. W: Never mind. Ill treat you today. Q: What do we learn from this conversation? 【解析】選C。對話中的關(guān)鍵詞是treat“款待；做東；請客，男士說找不到自己的飯盒了，女士說沒關(guān)系，我請你吃飯，選項C是女士回話的同義轉(zhuǎn)述。A、B與對話無關(guān)。D是借treat一詞設(shè)置的干擾項。 17. M: Wasnt it terrific? W: Well, the music was enjoyable, but the story didnt make much sense to me. I still

34、 prefer traditional dmp3a with strong characters and an exciting plot. Q: What does the woman think of the play? 【解析】選C。對話中男士問女士對戲劇的看法，女士說戲劇的音樂不錯，但故事情節(jié)沒意思，并補充說她喜歡人物塑造力強、情節(jié)生動的傳統(tǒng)戲劇。由此推知她認(rèn)為這部戲劇太現(xiàn)代派了，故C為答案。 18. W: Where have you been all this time? The train is about to leave! M: Sorry Im late, but I wa

35、s waiting for you at the infomp3ation desk upstairs. Its lucky I thought to look for you here on the platfomp3. Q: Where did the man think they were supposed to meet? 【解析】選D。根據(jù)男士的答復(fù)，我一直在樓上信息臺那里等你，可知男士認(rèn)為他們應(yīng)在信息臺見面。所以答案為D。 Conversation One W: Excuse me, are you going to buy that book? M: Well, I need i

36、t for a class but its awfully expensive. W: Oh, we must be in the same class. Introduction to British Literature? M: Yes, thats the one. Were you there yesterday for the first class? W: I sure was. Professor Robert really seems to know his subject. M: Yes, I took his Shakespeare course last semester

37、 and it was very good. He likes listening to his students. W: Thats a relief. Im a biology major and I was a little uncertain about taking an English course. M: Im an English major and this is a required course. But now Im in trouble because Im not sure I can afford this book. W: Hey, Ive got an ide

38、a. Why dont we split the cost and share the book? M: Sounds great. Do you live on campus? W: Yeah, I live on the 10th floor of Butler Hall. M: Perfect. I live on the 3rd floor of Butler. We should have no trouble sharing the book. I can bring it up to your room right after I wrap up the assignment.

39、W: Its a deal. Questions 19 to 21 are based on the passage you have just heard. 19. Where is the conversation most probably taking place? 【解析】選A。分析選項發(fā)現(xiàn)四個選項均是由表示方位的介賓短語“in+名詞構(gòu)成，說明此題考查的是對地點的判斷，我們可以根據(jù)行為活動和代表性的詞語來判斷地點。對話一開始女士的buy that book即說明對話發(fā)生在書店內(nèi)。而圖書館一般與借書、還書有關(guān)。 20. Which class are the man and the w

40、oman taking together? 【解析】選C。四個選項的內(nèi)容在錄音中都有提及，關(guān)鍵是聽清題目問的是男士和女士一起討論的是什么課?；貞浥克f的in the same class和Introduction to English Literature以及男士的肯定答復(fù)Yes可以得出答案。 21. What does the man think about Professor Robert? 【解析】選D。根據(jù)B、C、D可以推斷He指的是一個老師或者教授。錄音中提到了Professor Robert，女士說Professor Robert really seems to know his

41、 subject，男士肯定了女士的說法，說Professor Robert的課very good并且喜歡listening to his students，由此可以判斷Professor Robert是一個優(yōu)秀的教授。 Conversation Two M: You should have seen the line at the housing office. It took me an hour to make my domp3itory deposit for next year. Have you made yours yet? W: No, Im not sure Im going

42、to. M: Theres not much time left. The deadlines May 1. That is just two weeks from now. Are you short of cash? W: No, Im Okay. M: Youd better hurry up if you want a domp3 room next September. There arent enough rooms for every one, and first year students have priority. W: Well, Ive been thinking ab

43、out living off campus. M: Have you any idea of how much that would cost? There is the rent, utilities, and youd probably need a car. W: I know it would be more expensive. I think I can handle it though. The domp3 is just so noisy that I cant get anything done. Maybe my grades would be better if I ha

44、d some peace and quiet in a place of my own. M: You should study in the library the way I do. Think of the money youd save. W: Ive got to think it over some more. Theres still two weeks left in April. Questions 22 to 25 are based on the conversation you have just heard. 22. What are the speakers dis

45、cussing? 【解析】選B。對話圍繞著交下一年的宿舍押金展開，接著女士說她在考慮搬出校園，由此引發(fā)了兩人的討論，因此整個對話主要是對話雙方討論下一年在哪居住的問題，因此答案選B。 23. What must a person do in order to live in a university house? 【解析】選A。對話中男士說Youd better hurry up if you want a room next September，而從前面的對話內(nèi)容(make my domp3itory deposit for next year)可知男士說的hurry up指的是趕緊去交do

46、mp3itory deposit，由此可知如果要住學(xué)校的房子，就要付一些錢給housing office，應(yīng)選A。 24. Where do the two speakers live now? 【解析】選A。從對話最后兩人談到在宿舍學(xué)習(xí)時的情況和住宿舍可以省錢可以判斷兩人現(xiàn)在都住宿舍，只是女士想搬出宿舍住。 25. What does the man seem to be concerned about? 【解析】選D。從男士的話Think of the money youd save可以判斷他關(guān)心的是money，因此答案選D。A Grades是女士關(guān)心的問題。B和C兩項對話中未談及。答案和

47、解析：Section B Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D).T

48、hen mark the corresponding letter on Answer Sheet 2 with a single line through the center.Passage One When you turn on the radio, you hear an advertisement. When you watch television, you hear and see an advertisement. If you turn the pages of a newspaper or magazine, again you find an advertisement

49、. If you walk down the street, you see one advertising board after another. All day, every day, people who want to sell you something competent to catch your attention. As a result, advertisements are almost everywhere. In the West, advertisements are the fuel that makes mass media work. The governm

50、ent does not give money to mass media such as TV stations, newspapers, magazines and radio stations. They are all owned privately. So where does the money come from? From advertisements. Without advertisements, there would not be these private businesses. Have you ever asked yourself what advertisin

51、g is? Through the years, people have given different answers to the question. For some time it was felt that advertising was a means of “keeping your name before the public. And some people thought that advertising was “truth well told. Now more and more people describe it in this way： Advertising i

52、s the paid, nonpersonal, and usually persuasive description of goods, services and ideas through various media. All advertisements try to make people believe that the product, idea, or service advertised can do well to them. Advertisements exist everywhere in our lives. Questions 26 to 28 are based

53、on the passage you have just heard. 26. What is the passage mainly about? 【解析】選D。這篇材料開篇就提到了播送、電視、報紙上的廣告(advertisement)，隨后講了廣告的定義，結(jié)尾說廣告到處都存在，這說明本篇 講的是廣告的繁榮開展，應(yīng)選項D符合題意。 27. Whats the financial source of the privately owned mass media? 【解析】選C。選項C符合題意，依據(jù)是So where does the moneycome from? From advertisem

54、ents。 28. According to the passage, what is one of the features of advertisements? 【解析】選B。選項B 符合題意，依據(jù)是Advertising is the paid, nonpersonal, and usually persuasive description of goods, services and ideas through various media。convincing是persuasive的同義轉(zhuǎn)述，意為making you believe that something is true or

55、right，即“使相信，使確認(rèn)。 Passage Two Officials at the Olympic Games taking place in Salt Lake City, Utah, say they have met their environmental goals. However, environmental groups say the Salt Lake Olympic Games have done pemp3anent hamp3 to the area. Protection of the environment is now officially one of

56、the three goals of the Olympic movement. The other two goals are sports and culture. Today, many cities seeking to hold the Olympic Games promise to offer greater protection for the environment. However, an environmental group says that the Salt Lake Olympic Committee make promises that it has not k

57、ept. For example, activists criticize ski jumps that were built into the sides of the mountains. They also criticize the officials for pemp3itting trees to be cut down and new roads built for the Olympic Games. They said better public transportation is needed to help decrease air pollution during th

58、e Games. And they said not enough has been done to reduce energy use. Lawyers say the Olympics are being used as an excuse to pemp3it development that nomp3ally would be unacceptable under the current environmental laws. Questions 29 to 31 are based on the passage you have just heard. 29. What do th

59、e environmental groups think of the Salt Lake Olympic Games? 【解析】D。在聽錄音之前，預(yù)覽四個選項可知本文可能談?wù)摰氖荰he games與environment的問題。原文中用轉(zhuǎn)折語言引出環(huán)境組織的意見，however,.have done pemp3anent hamp3 to the area,應(yīng)選D。 30. Which is not a goal of the Olympic movement? 【解析】C。四個選項均為含有積極色彩的名詞短語，需要在聽的過程中留意和它們有關(guān)的信息。 31. According to the

60、environmental groups what is needed to decrease airpollution during the Games? 【解析】B。預(yù)讀選項可以推測此題考查的是保護環(huán)境的行為，需要留意文中有關(guān)這些行為的細(xì)節(jié)。 Passage Three Diet, diet, diet! It gets to be a constant battle for many of us to stay fit and healthy. But diets dont always allow us to learn new eating habits, improve our s