1、课时跟踪检测15(B3Unit 2).单项填空1On account of the development of the economy, the environment is seriously polluted and we must _ the emission of the carbon dioxide.Acut inBcut offCcut up Dcut down答案与解析：D句意：由于经济的发展，环境受到了严重的污染，因此我们必须减少二氧化碳的排放量。cut down“减少；削减”；相当于reduce。cut in“插嘴；突然插入”；cut off“切断”；cut up“切碎”。
2、2Hi, David! How was your trip to Beijing?Wonderful! I had never had _ holiday in my life.Aa most exciting Ba more excitingCthe most excited Dthe more excited答案与解析：B形容词或副词的比较级与否定词连用可表示最高级概念，排除A、C两项；excited“激动的”，常用于修饰人，exciting“令人激动的”，常用于修饰物，故B项正确。3You must get excited about going to France to study o
3、il painting._， but Im afraid I cant do well because my French is too poor.AI dont know yet BCertainly notCWell, I ought to have DAll right答案与解析：C句意：能去法国学油画你肯定很兴奋。哦，我倒应该兴奋，可是我怕我学不好，因为我的法语太差了。ought to相当于should，其后省略了got excited。4If you just spend time _ advantages and disadvantages, you may get nothing
4、 in the end.Amatching BbalancingCobserving Dexamining答案与解析：B句意：如果你只把时间花费在权衡利弊上，那你最后可能什么都得不到。balance advantages and disadvantages意为“权衡利弊”。5That party has been in _ for many years and it has showed its _ in dealing with many important problems.Apower; energy Bpower; strengthsCforce; energy Dforce; str
5、engths答案与解析：B句意：那个政党执政很多年了，在处理许多重要问题上已显现出它的优势。表示“执政，上台”用be in power/come to power；strength指固有的潜力。6The injured person was still _ on the bed where he was _.Alying; lay Blied; layingClying; laid Dlain; lying答案与解析：C句意：伤者仍然躺在它被放置的那张床上。根据动词的意思和用法可知选C项。7In my opinion, you wont _ the fact that you have mad
6、e another mistake in your work.Aget away with Bget along withCkeep up with Dkeep in with答案与解析：A句意：依我之见，你在工作中又犯了错误，将难逃惩罚。get away with“被放过，不受惩罚”；get along with“进展”；keep up with“赶上”；keep in with“与某人保持友好关系”。根据句意可知选A项。8Im sure that middle school students will benefit _ taking exercise every day, which i
7、s _ great benefit _ their health.Aby; of; at Bfrom; of; toCof; by; to Dby; from; at答案与解析：B句意：我确信中学生将得益于每天的锻炼，这非常有利于他们的健康。benefit from/by表示“得益于”；be of great benefit to“对大有益处”。根据句意可知选B项。9The traffic department has taken effective measures _ the car speed in the town and _ the traffic accidents.Alimiti
8、ng; cut off Bto limit; cut upClimiting; cut out Dto limit; cut down答案与解析：D句意：交通部门已采取有效措施以限制城镇的车辆速度，减少交通事故。第一空表示目的，and连接两个并列的成分，所以选D项。10Despite high prices of the goods, the shopping mall is always attracting a lot of customers for its _ supplies.Adiverse BdiscountCabundant Deffective答案与解析：Adiverse“多
9、样的，不同的”。句意：尽管购物中心的物品价格很高；但其多样化的供应品总能吸引大量的顾客。discount“折扣”；abundant“充足的”；effective“有效的”。11Every time he meets with hard problems, he always _ his parents.Aconduct BconnectCcombine Dconsult答案与解析：D句意：每当他遇到棘手的问题，他总是向他的父母咨询。conduct“引导”；connect“连接”；combine“联合”；consult“咨询”，根据句意可知，应选D项。12In the past he was o
10、ften _， but in recent years he _ his living by doing business with local traders.Ain debt; gained Bin debt; earnedCinto debt; gained Dinto debt; earned答案与解析：B句意：过去他经常欠债，但是近几年他通过与当地的商人做买卖谋生。be in debt“欠债”；earn ones living“谋生”，故选B项。13Li Hua, do you know the final exam is drawing near? Time is limited,
11、 so I cant have you _ time like this.Awaste Bto wasteCwasting Dwasted答案与解析：C句意：李华，你知道期末考试就要到了吗？时间是有限的，因此我不能让你一直这样浪费时间了。have sb. doing sth.意为“让某人一直干某事”。故选C项。14I found that the young man was always spying _ me all the way, so I glared _ him.Aat; with Bon; withCat; on Don; at答案与解析：D句意：我发现那个年轻人一路上总在窥视我，
12、所以我怒视了他。根据句意及短语spy on sb.和glare at sb.可知应选D项。15There was a lot of fun at yesterdays party. You _ come. Why didnt you?What a pity! But I had no time because I had lots of homework to do.Amust have BshouldCneed have Dought to have答案与解析：D句意：昨天晚上的聚会非常有趣。你本该来的，为什么没来呢？真遗憾！但我昨天没有时间因为我有很多作业要做。表示对过去的虚拟“本该”应该
13、用should/ought to have done。.阅读理解There are many American expressions about insectslike bees, for example. Bees always appear to be busy, moving around their homes, or hives. In fact, you might say your house was a beehive of activity if your whole family was helping you clean. You also might say you
14、made a beeline for something if you went there right away. Here is an expression about bees that is not used much any more, but we like it anyway. We think it was first used in the nineteen twenties. If something was the best of its kind, you might say it was the bees knees. Now, we admit that we do
15、 not know how this expression developed. In fact, we do not even know if bees have knees! If your friend cannot stop talking about something because she thinks it is important, you might say she has a bee in her bonnet. If someone asks you a personal question, you might say “that is none of your bee
16、swax”. This means none of your business. Speaking of personal questions, there is an expression people sometimes use when their children ask, “where do babies come from？” Parents who discuss sex and reproduction say this is talking about the birds and the bees. Hornets are beelike insects that somet
17、imes attack people. If you are really angry, you might say you are mad as a hornet. Butterflies are beautiful insects, but you would not want to have butterflies in your stomach. That means to be nervous about having to do something, like speaking in front of a crowd. You would also not want to have
18、 ants in your pants. That is, to be restless and unable to sit still.16. When Tom spends his weekend cleaning his house, we can say he is as busy as _. A. an insect B. a hornet C. a butterfly D. a bee17. Which of the following expressions can NOT be often heard in daily life? A. Make a beeline. B. T
19、hat is none of your beeswax. C. Its the bees knees. D. My house is a beehive of activity.18. When you say to Mary “you have a bee in your bonnet”， what do you really mean? A. She should stop talking about something. B. You care about her very much. C. She is in danger and needs help. D. What she tal
20、ks about is really important.19. Which of the following would be discussed next? A. Some expressions about pigs. B. Some expressions about noses. C. Some expressions about bugs. D. Some expressions about colours.答案与解析：在美国，有许多关于昆虫的习语，其中关于蜜蜂、大黄蜂和蝴蝶的习语更受人们的青睐。这些习语的出现，使人们的语言变得更加丰富多彩。16D推理判断题。由第一段第二、三句可知
21、选D。17C细节理解题。由第二段前三句可知，习语“Its the bees knees”人们已经不经常说了，因此我们不会经常听到这个习语。18A推理判断题。由第三段第一句可知，如果一个人喋喋不休地说自己认为重要的事情，我们可能会说you have a bee in your bonnet。因此这个词语应表示“不要再说了”。19C推理判断题。由短文第一句可知，本文要讲述的是有关昆虫的习语。在四个选项中，只有C项的bugs(虫子)与昆虫有关。.七选五Nobody has ever succeeded in their attempt to stay young and live a very lo
22、ng life._20_ But is this really true?Dr Aubrey de Grey thinks that we can stop people getting old and that in about 20 years, people will be able to live to be 1,000 years old！_21_In Dr Greys opinion, getting old is a problem that can be solved._22_ If we can cure this disease, we can stop the aging
23、 process.We can also make people have young bodies again.Dr Grey believes that science will soon be able to stop the causes of aging so that a persons body wont get weak and wont suffer from the typical diseases of old age.Dr Grey compares the human body to a house.As the house gets older, some thin
24、gs must be repaired.Broken hearts must be replaced.The same thing can happen with the human body, he thinks.We can use stem cell technology to grow new, healthy tissue to replace the old, damaged one.We can also try to remove diseasecausing molecules in our bodies._23_._24_However, they admit that D
25、r Greys ideas have not yet been proved wrong.Dr Grey is convinced that his opinions are realistic and that his research is very important.If aging is a disease, he says, we must try to cure it.A. At the same time, peoples bodies will stay young and healthy.B. Scientists succeeded in solving the prob
26、lem of aging long ago.C. A lot of scientists think his ideas not realistic.DWhen our bodies change as we get older, this is like a disease.E. New deadly diseases may also be cured, if we can stop the aging process.F. It seems that everybody must get old and die.G. In this way, a person could easily
27、live to be 1,000 years old.答案：20.F21.A22.D23.G24.C.短文改错At 730 on the morning, we gathered at the school gate and set off on a large bus.An hour later, we arrive at the Forest Park.Getting off, we started our journey at once.First, we climbed the green hills and on the way tried their luck to hunt fo
28、r hidden treasure.Next, we toured around the lake in the comfortable boat.The beautiful scenery was really a feast for the eye.Then at noon time, we landed and settled at an open area, which we enjoyed a wonderful picnic.After eating, we sang and danced happy and played some interesting games.The da
29、y passed quickly.Finally it was time for us to return back.So at 3：00 pm, we cleaned the ground, made our way to the parking lot, getting on the bus and left.It was really an exciting trip since we had long busy with our school work.答案：At 730 onin the morning, we gathered at the school gate and set
30、off on a large bus.An hour later, we arrivearrived at the Forest Park.Getting off, we started our journey at once.First, we climbed the green hills and on the way tried theirour luck to hunt for hidden treasure.Next, we toured around thea lake in the comfortable boat.The beautiful scenery was really
31、 a feast for the eyeeyes.Then at noon time, we landed and settled at an open area, whichwhere we enjoyed a wonderful picnic.After eating, we sang and danced happyhappily and played some interesting games.The day passed quickly.Finally it was time for us to return back .So at 3：00 pm, we cleaned the ground, made our way to the parking lot, gettinggot on the bus and left.It was really an exciting trip since we had long been busy with our school work.