北师大版必修2unit4课时活页训练.doc

.单项填空1Look at the black clouds.It_soon.Sure，if only we_out.Ais raining；didnt startBis to rain；havent startedCwill rain；havent startedDis going to rain；hadnt started解析：选D。第一空用be going to表示有某种迹象要发生某事；第二个空为虚拟语气结构，表示对过去情况的推测。2When_help，one often says “Thank you” or “Its very kind of you”Aoffered Bto offerCto be offered Doffering解析：选A。考查offer的用法及省略。句意：当受到帮助时，人们常说“谢谢你”或“你太好了”。offer sb.sth.sb.be offered sth.提供给某人某物，本句可以改为When one is offered help.。故选A，用过去分词作状语。3We all thought_a question_we could raise enough money for the project.Athat；that Bit；whetherCit；that Dthat；whether解析：选B。此处it作形式宾语，真正的宾语为whether引导的从句，因为还是个问题不确定所以用whether。4Mary cant speak English_her friends，but her written work is perfect.Aas well as Bas often asCso much as Das good as解析：选A。句意：玛丽没有她的朋友英语说得好，但她的写作很好。根据句意可知speak要与副词well连用。故A项正确。5The government_the diplomatic note from that country for its unclear attitude to the trade between the two countries.Adenied BrefusedCrejected Dobjected解析：选C。句意：政府驳回了那个国家的外交函件，因为在函件中该国对两国之间的贸易问题态度不明朗。deny否认；refuse指一般的“拒绝，回绝”；reject坚持拒绝，驳回，语气强硬，较为正式；object反对。6People should spare no effort to protect the environment._.Air pollution，as is known to all，does harm to our health.AAll right BFineCGo ahead DExactly解析：选D。考查交际用语。句意：人们应不遗余力地去保护环境。的确如此。众所周知，空气污染对我们的身体有危害。exactly用于回答时，意为：quite right“确实如此”。7_we move the picture over there？Do you think it will look better?AIf only BWhat ifCAs if DEven if解析：选B。考查常用短语的辨析。if only但愿，要是就好了；what if倘若将会怎样；as if好像；even if即使。B项符合句子的语境。8As we know，_medical examination will help us find out health problems as early as possible.Anormal BgeneralCregular Dcommon解析：选C。本题考查形容词辨析。根据句子意思，这里是定期检查的意思，因此应该选择C项。normal正常的，一般的；general普遍的，总的；common普通的。9The old man insisted that I_his wallet and that I_to the police station with him.Ahad taken；go Btake；should doCwould take；had gone Dshould take；do解析：选A。insist作“坚持认为，坚持说”讲时其后宾语从句用陈述语气，即主从句谓语动词时态一致；当作为“坚决要求”讲时，其后宾语从句用虚拟语气即should动词原形，should可以省略。10The doctor would allow him to go home_he remained in bed.Aas though Bfor fear thatCon conditio n that Das far as解析：选C。句意：大夫将允许他回家，条件是(on condition that)他得呆在床上。as though好像；for fear that唯恐，害怕；as far as远到，直到，至于，均不合题意。11He is_to come this evening though it is raining heavily.Alikely BpossibleCprobable Dprobably解析：选A。sb.is likely to do sth.某人可能做某事，选项B和C作表语时，其主语通常是物。D项一般不用作表语。12The doctor suggested he_with a serious disease and that he_to hospital at once.Abe infected；be sentBwas infected；be sentCshould be infected；was sentDbe infected；was sent解析：选B。句意：医生认为他感染了重病并建议立即将他送往医院。suggest作“暗示，表明”讲时，后跟从句用陈述语气；作“建议，提议”讲时，后跟从句用虚拟语气。13Sometimes advertisements make_possible for companies to sell the customers_money cannot buy.A/；that Bit；whatCthat；which D/；whose解析：选B。在“makesb./sth.adj.”这一结构中，常用it作形式宾语，而把真正的宾语(动词不定式、动名词或从句)放在后面。14Last week he was caught robbing the bank opposite the station._his age，the police have decided not to charge him.AIn spite of BIn view ofCIn charge of DIn case of解析：选B。考查介词短语辨析。句意：上周他在抢劫车站对面的银行时被抓。考虑到他的年龄，警方决定不起诉他。in spite of不管；in view of鉴于，考虑到；in charge of掌管，负责；in case of以防，万一。15Youd better take some medicine with you before you leave_someone gets sick.Aso that Bthe momentCas long as Din case解析：选D。句意：你最好离开前带着药，以防有人生病。A项“目的是，为了”；B项作连词时意为“一就”；C项“只要”；D项“以防，万一”。结合句意选D。.阅读理解 AHealth food is a general term applied to all kinds of food that is considered more healthy than the types of food sold in supermarkets.For example，whole grains，dried beans，and corn oil are health foods.A narrower classification of health food is natural food.This term is used to distinguish between types of the same food.Raw honey is a natural sweetener，while refined(提炼的)sugar is not.The most exact term of all and the narrowest classification within health food is organic food，used to describe food that has been grown on a particular kind of farm.Fruits and vegetables that are grown in gardens，that are treated only with organic fertilizers，that are not sprayed with poisonous insecticides(杀虫剂)，and that are not refined after harvest，are organic food.In choosing the type of food you eat，then you have basically two choices：inorganic，processed(加工)food or organic，unprocessed food.A wise decision should include study of the reason why processed food contains chemicals，some of which are proved to be poisonous and that vitamin content is greatly reduced in processed food.Bread is typically used by health food supporters as an example of a processed food. First, the seeds from which the grain is grown are treated with a chemical which is extremely harmful. Later, the grain is sprayed with a number of very deadly insecticides. After the grain has been made into flour, it is made white with another chemical which is also poisonous. Next, a dough conditioner is added along with a softener. The conditioner and softener are poisons，and in fact, the softener has sickened and killed experimental animals.A very poisonous antifungal compound is added to keep the bread from getting moldy(发霉的)Other food from the supermarket would show a similar pattern of processing and preserving. You see, we buy our food on the basis of smell, color, and texture, instead of vitamin content, and manufacturers give us what we want, even if it is poisonous. The alternative? Eat health foods，preferably the organic variety.1What is the passage mainly about?AHealth food. BThe processing of bread.CProcessed food. DPoisons.解析：选A。主旨大意题。综观全文，作者始终围绕“健康食品”来展开说明，而B项“面包的生产过程”只是作者为说明我们应选择健康食品所举的反例。2What do all of the additives in bread have in common?AThey are all used to keep the bread from getting moldy.BThey are all poisonous.CThey are all organic.DThey have all killed laboratory animals.解析：选B。推理判断题。根据文章第三、四段中对面包制作过程的描述可知，从种粮食开始直到添加防腐剂制成面包的过程中，所使用的各种添加物都是有毒的，故B项是面包中所有添加剂的共性。3What happens to food when it is processed?AThe basic content remains the same.BVitamin is not available after processing.CThe vitamin content increases a bit.DThe vitamin content is greatly reduced.解析：选D。细节理解题。从文章第二段最后一句可知，加工食品中维他命的含量大大降低了。4We normally buy food on the basis of_.A. organic variety B. beautyC. refined contents D. smell, color and texture解析：选D。细节理解题。文章最后一段第二句提到我们通常购买食品时依据的是食物的味、色、形。BMore Americans than ever are riding their bicycles to work instead of driving.They are doing this because of gas prices，a slowing economy and concerns about the environment.Many Americans have been leaving their cars at home and riding to work on bicycles. Andy Clark is the executive director of the League of American Bicyclists. His group supports bicycling for fun, fitness and transportation.Mr.Clark says this is good news for the environment.He says riding a bicycle to work does not burn fossil fuel or create dangerous pollutants. Experts say the effects are the most important on short trips. The Department of Transportation says fifty percent of Americans drive eight kilometers or fewer to work. Shorter car trips release more pollution into the air for each kilometer driven. This is because the device in a car engine that reduces the harmfulness of emissions (散发物) needs to warm up before it can work well.Last year, the Pacific northwest city of Portland, Oregon, had the highest percentage of bicycle commuters(通勤者) in the United States. Portland has been doing progressive city planning for many years to create special paths for bike riders.Andrew Land is one of Portlands citizens who bikes to work every day. Mr.Land is thirtythree years old and has never owned a car. He has biked to work for twelve years.Before moving to Portland six years ago, he lived in Washington, DC.But he was hit by a car twice while biking to work there. That has not happened in Portland where there are special roads for bicycles. Mr.Land bought a house near these special bike lanes. He rides almost five kilometers to work each day. He also uses the sixtyfour kilometer bike path around the city.5What is not the reason why so many Americans are biking to work?AThey want to save money.BBecause their income is less than before.CThey dont want to produce pollution.DThey cant afford to buy cars.解析：选D。细节题。由第一段的第二句可知，越来越多的美国人骑自行车去上班是因为石油价格的上涨、经济的缓慢发展和对环境的关注，而不是因为买不起车。6Why do shorter car trips let out more pollution into the air for each kilometer driven?ABecause it t