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Unit 2 Language一、阅读理解If you want to slow aging, you might want to eat less. This finding is good news-if you were a mouse. The researchers studied mice, not people.John Price and other researchers studied two groups of mice. One group was able to eat as much as it wanted. The researchers limited what the mice in the other group ate. Their diet had 35 percent fewer calories than the first group of mice.Price says the mice with the diet restrictions were “more energetic and suffered fewer disease.” They were not just living longer but seemed to stay younger for a longer period of time.The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes. Price explains that ribosomes are responsible for making important proteins in the cells. But with fewer calories, they slow down. This gives the cells more time to repair themselves.The researchers say ribosomes use from 10 to 20 percent of the cells energy to make those proteins. Price wrote that “because of this, it is impractical to destroy an entire ribosome” when it starts to break down. However, “repairing individual parts of the ribosome on a regular basis enables ribosomes to continue producing high quality proteins for longer than they would otherwise. This top quality production, in turn, keeps cells and the entire body functioning well.”Price said, “ribosome is a very plex machine, like a car.” They need “maintenance to replace the parts that wear out the fastest. When tires wear out,” he explained, “you dont throw the whole car away and buy a new one. It costs less to replace the old tires.”“Food,” he said, “isnt just material to be burned-its a signal that tells our body and cells how to respond.” Price said the findings help to explain how exactly our bodies age. And this may “help us make more educated decisions about what we eat.”1.What can we know about the mice with limited calories from the study?A. They can keep healthy easilyB. They need more energy to be activeC. They can look younger than they areD. They will live a longer life like humans2.What will happen to ribosomes if there are fewer calories?A. They will pletely break downB. They make proteins in the cells slowlyC. They will produce high quality proteins moreD. They may need more time to repair themselves3.Price explained the ribosomes role of repairing themselves by _.A. telling a storyB. listing basic dataC. making parisonsD. experimenting on mice4.What does the text mainly deal with?A. Food decides how long you liveB. Can you slow down your aging process?C. Eating less may help you live longerD. Should your diet be reduced for your health?【文章大意】本文是一篇说明文。通过研究实验发现：吃的少会使你长寿。1.A 【解析】细节理解题。根据第二段中The researchers limited what the mice in the other group ate. Their diet had 35 percent fewer calories than the first group of mice.的提示可知他们能够很容易保持健康，故选A。2.B 【解析】细节理解题。根据第四段中The researchers found that fewer calories slow down a natural mechanism in cells called ribosomes.的提示可知它们会在细胞中缓慢地产生蛋白质，故选B。4.C 【解析】主旨大意题。根据第一段首句If you want to slow aging, you might want to eat less. This finding is good news的提示可知这片名文章的主旨是吃的少会使你长寿，故选C。 二、词汇练习1. a lot of learning _Dont _ the plastic vase too hard, or it might be broken.（压力；压）2. _ some vinegar and water up and you will get a _.（混合；混合物）3. make great _ toHis diligence _ to his great success eventually.（贡献；促成）4. work as _a public_He first _as a waiter. （服务；招待；仆人）5. Can you _ John from the two twins?make a _ （区别，差别；区分，辨别）6. raise a public _ aboutan issue _public safety （关心，忧虑；涉及）7. I would like to drink _ water.The water has been _. It is safe to drink it. （纯净的；使纯净）8. Can you have _to the cave on the top of the hill?The cave on the top of the hill is _to you. （通道）（使用的）机会，权利9. draw/ reach/ e to a _I am sure that after reading the novel, you can _ that it is fantastic.(结论；得出结论)10. Please e to my home at your _ next time.The traffic here is very _. Many roads lead to the airport and railway station. （方便的；方便）11. The plan is of _ use. Knowledge es from _. （实际的，实用的；实践）12. We dont judge a person only according to his or her _.Be more patient. He will _ sooner or later. （表明，外表；出现）13. The firm is working on a new product in _ with several overseas partners.Some characters were made by _ two or more characters together. （组合，联合）14. make a _American English _ slightly from British English in pronunciation and spelling.What is _ from you is that he works harder than you. （相异；不同的；不同）15. _ discrimination People all over the world should live in harmony with each other regardless of _, gender and nationality.（种族）16. A red sky at night _ fine weather the following day.There is no _ that he will turn up again.（显示；暗示）17. practice _ English18. 现今ad19. 击败v20. 替换v21. 筹募v22. 过程n23. unique24. 风俗n25. 举起v26. deed27. 缺点，短处ns_28. 养育v29. thus30. version31. 除.之外 a_ _32. 由.组成be _ _= _ _33. 母语_ _34. poor eyesight35. 代表；象征_ _三、完形填空It impressed me a lot.I never thought that little help will _1_ out to be the most satisfying thing I have ever done.He was tired，and _2_ to climb further.With a broad _3_，he asked if I could help him with some money.He was paralyzed(瘫痪) in both legs and was _4_ funds for some operation.He said that if operated successfully，he could _5_ a training guaranteeing him a job.I was full of _6_ and even asked him to show his legs.I gave him the _7_ money.After a few days，he again came at my doorstep asking for more money for acmodation.This time I was more or less _8_ he was not cheating me.I gave him some and said，“This is all I have.”A year went by and I had moved to a(n) _9_ place.One fine day I got a call from an unknown number.Caller called out his name but I didnt _10_ him.Then he said he was the very paralyzed person I helped a year ago.I asked him how he was doing.He said，“What sir, you recognize me not by my name but by my _11_ state.”“With your kind help I am now able to _12_ on my legs without support.I was operated _13_.I am married to a beautiful lady and have a stable _14_.”I dont _15_ remember if I gave him my phone number._16_，what he said next was touching.He said he wanted to return my money so that I didnt feel cheated and would continue to help people _17_ in the future.I dont know whether he read my facial expression the day I helped him but tears were _18_ down my face.That day I promised him I would continue to help people as I saw a(n) _19_small or big._20_ a lifechanged event of my life.1A.send BbreakCbring Dturn2A.struggling BsubstitutingCplaying Dwalking3A.look BsmileCview Dwhisper4A.finding BraisingCseeking Dearning5A.pretend BintendCattend Dtend6A.interests BmindsCworries Ddoubts7A.remaining BleftChiding Dforgotten8A.informed BpreparedCconvinced Doutspoken9A.new BoldCsystematic Dbad10A.remind BrecognizeCreplace Drepeat11A.excited BmessedCdisabled Dstressed12A.live BbaseCfocus Dstand13A.successfully BsurprisinglyChopefully Dnaturally14A.reason BpromiseCcharacter Djob15A.also BevenCalready Donly16A.Therefore BOtherwiseCHowever DMeanwhile17A.in need Bin placeCin favor Din advance18A.bringing BputtingCrunning Dpulling19A.behavior BcaseCaccident Dopportunity20A.Strangely BTrulyCGenerally DOriginally【解题导语】本文是一篇记叙文。作者一次无意间的帮助改变了一位瘫痪者的一生。这件事也改变了作者的人生，让他决定继续帮助那些有困难的人。1D考查动词短语辨析。此处指作者从未想过一个小小的帮助最后竟成为他曾做过的最令自己满意的一件事。四个选项都能与out组成固定短语。turn out意为“结果是，最后成为”，符合语境。send out意为“发出”；break out意为“爆发”；bring out意为“生产，出版”，均与语境不符。故答案选D。2A考查动词辨析。根据下文中的“paralyzed (瘫痪)”可知，他瘫痪了，所以此处应指他努力往前爬。A项意为“努力，挣扎”，符合语境。B项意为“替换”；C项意为“玩”；D项意为“走”，均与语境不符。故答案选A。3B考查名词辨析。根据前面的“broad”可知，此处应指他咧嘴微笑着。B项意为“微笑”，符合语境。A项意为“表情”；C项意为“观点”；D项意为“耳语”，均与语境不符。故答案选B。4B考查动词辨析。根据上句中的“help him with some money”可知，此处应指他在筹集手术资金。B项意为“筹集”，符合语境。A项意为“找到”；C项意为“寻找”；D项意为“挣得”，均与语境不符。故答案选B。5C考查动词辨析。根据语境可知，此处应指如果手术成功了，他就能参加能让他得到一份工作的培训。C项意为“参加”，符合语境。A项意为“假装”；B项意为“打算”；D项意为“往往会”，均与语境不符。故答案选C。6D考查名词辨析。根据本句中的“even asked him to show his legs”可知，作者要求看看他的腿，所以对他所说的话应该是充满了怀疑。D项意为“怀疑”，符合语境。A项意为“兴趣”；B项意为“思想”；C项意为“担心”，均与语境不符。故答案选D。7A考查形容词辨析。此处指作者把手上剩余的钱都给了他。A项意为“剩余的”，符合语境。B项意为“剩下的”，不作前置定语；C项意为“隐藏的”；D项意为“被遗忘的”，均与语境不符。故答案选A。8C考查形容词辨析。根据本句中的“he was not cheating me”和下句中的“gave him some”可知，作者给了他一些钱，有几分确信他并没有骗自己。C项意为“确信的，信服的”，符合语境。A项意为“见多识广的”；B项意为“准备好的”；D项意为“坦率的，直言不讳的”，均与语境不符。故答案选C。9A考查形容词辨析。根据上文的“moved to”及下文作者接到一个陌生电话可知，作者搬到了一个新地方。A项意为“新的”，符合语境。B项意为“旧的”；C项意为“系统化的”；D项意为“坏的”，均与语境不符。故答案选A。10B考查动词辨析。根据本句中的转折连词“but”及下文中的“you recognize me not by my name”可知，打电话的人报出了自己的名字，但作者并没有认出他来。B项意为“认出”，符合语境。A项意为“提醒”；C项意为“代替”；D项意为“重复”，均与语境不符。故答案选B。11C考查形容词辨析。根据上文中的“Then he said he was the very paralyzed person”可知，作者不是通过他的名字而是通过他瘫痪的情况认出了他。C项意为“残疾的”，符合语境。A项意为“兴奋的”；B项意为“混乱的”；D项意为“有压力的”，均与语境不符。故答案选C。12D考查动词辨析。根据本句中的“without support”可知，此处指他不需要支架就可以自己站起来。D项意为“站立，站起来”，符合语境。live意为“居住”；base意为“基于”；focus意为“关注”，均与语境不符。故答案选D。13A考查副词辨析。根据上一句可知，他现在能够站起来，所以手术成功了。A项意为“成功地”，符合语境。B项意为“令人惊奇地”；C项意为“有希望地”；D项意为“自然地”，均与语境不符。故答案选A。14D考查名词辨析。根据常识及上文中提到的“guaranteeing him a job”可推断出，他结婚了，还有了一份稳定的工作。D项意为“工作”，符合语境。A项意为“理由”；B项意为“允诺”；C项意为“性格”，均与语境不符。故答案选D。15B考查副词辨析。根据语境及上文中的“A year went by”可知，此处指作者甚至不记得是否给过他电话号码。B项意为“甚至”，符合语境。故答案选B。16C考查副词辨析。根据上下文语境可知，作者甚至不记得是否给过他电话号码，但是他接下来说的话却令人感动。C项意为“然而”，表示转折，符合语境。A项意为“因此”；B项意为“否则”；D项意为“与此同时”，均与语境不符。故答案选C。17A考查短语辨析。根据语境可知，这位曾经瘫痪的人想将钱还给作者，这样作者就不会感觉到自己被骗从而以后可以放心去帮助那些有困难的人。A项意为“在危难中的”，符合语境。B项意为“在适当的位置”；C项不是短语；D项意为“提前”，均与语境不符。故答案选A。18C考查动词辨析。根据语境可知，此处是指眼泪流过作者的脸庞。四个选项都能与down组成短语。run down意为“往下流”，符合语境。bring down意为“降低，打倒”；put down意为“镇压，记下”；pull down意为“拉下来，摧毁”，均与语境不符。故答案选C。19D考查名词辨析。根据语境及本句中的“small or big”可知，此处表示只要有机会，无论大小，作者都会继续帮助他人。D项意为“机会”，符合语境。A项意为“行为”； B项意为“事例”；C项意为“事故”，均与语境不符。故答案选D。20B考查副词辨析。根据全文内容以及第一段第一句可知，此处与第一句相呼应，指的是这的确是改变了作者一生的事情。B项意为“确实，的确”，符合语境。A项意为“奇怪地”；C项意为“大体上地”；D项意为“起初”，均与语境不符。故答案选B。四、七选五Choosing the Right Path to Be a “Better” PersonLife is a constant exercise in selfimprovement.In the rush to achieve，the idea of being “better” can bee lost sometimes.You may always wonder how to improve yourself and fulfill your dreams in an easier way._1_Explore your talents.Everybody has some outstanding skills or interests.So its often necessary to be patient and try many things before you find one that suits you._2_ For example，people loving adventure may not be interested in the quiet chess club，but someone who enjoys other quiet activities might be.Determining who you enjoy being around may help you know what youll enjoy._3_No matter how much money you make，you will not be happy if you spend your entire life doing something you hate.Its important to at least devote some of your time to what makes you happy.If youre particularly unhappy at your job，consider why._4_ If you feel your job isnt meaningful，or isnt in line with your values，consider finding another job.Experience something new.Research has shown that when were in our fort zone，we arent as productive as we are when we step just beyond it._5_ Because of that，we may react slowly to our own positive experiences.Its important to have new experiences and interactions with others，even when those are a little scary.Doing so can help you achieve more.ADo what you love.BHere are some tips for you.CRegister in a class youre interested in.DHuman adapt very quickly to positive events.EIts possible that some changes may change your feeling.FSimilar types of people may be attracted to the same activities.GTry not to allow yourself to focus so much on a certain aspect of your life.【解题导语】人生就是不断自我提升的过程，有时我们急于取得成功，却迷失了自我。本文就如何提升自己给出了一些建议。1B上文提到你可能想知道如何用更简单的方式提升自己，下文则给出了一些建议。由此可知，设空处承上启下。B项符合语境。2F本段最后一句提到，判断你喜欢跟谁在一起有助于你了解自己喜欢什么。由此可知，F项符合语境。故选F项。3A本题考查标题句。根据该标题下的Its important to at least devote some of your time to what makes you happy.可知，花时间做自己喜欢的事很重要。由此可知，A项(做你喜欢的事)符合语境。4E上文提出如果特别不喜欢现在的工作，考虑一下原因，下文则提出考虑换一份工作。由此可知，E项(有时候作出一些改变也可以改变你的心情)符合语境。5D本段主题是体验新事物。空格后说，正因为如此，我们可能对自己的积极的经历反应迟钝。D项(人类对积极的事件适应很快)正好解释了下文的现象。故选D项。
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