1、七 必修2Unit 2The Olympic Games(限时35分钟).阅读理解We can video chat with astronauts aboard the International Space Station and watch live footage(直播)from the frozen heights of Everest.But communicating with a submarine(潜艇)or a diver is not so easy.The lack of practical methods for sharing data between underw
2、ater and airborne devices has long been a frustration for scientists.The difficulty originates from the fact that radio signals work perfectly in air travel but poorly in water.Sonar(声呐)signals used by underwater sensors reflect off the surface of the water rather than reaching the air.Now,researche
3、rs at MIT have developed a method with the potential to revolutionize underwater communication.“What weve shown is that its actually feasible to communicate from underwater to the air,”says Fadel Adib,a professor at MITs Media Lab,who led the research.The MIT researchers designed a system that uses
4、an underwater machine to send sonar signals to the surface,making vibrations(震动)corresponding to the 1s and 0s of the data.A surface receiver then reads and decodes these tiny vibrations.The researchers call the system TARF.“It has a number of potential real-world uses,”Adib says.It could be used to
5、 find downed planes underwater by reading signals from sonar devices in a planes black box and it could allow submarines to communicate with the surface.Right now the technology is low-resolution.The initial study was conducted in the MIT swimming pool at maximum depths of around 11 or 12 feet.The n
6、ext steps for the researchers are to see if TARF is workable at much greater depths and under varying conditionshigh waves,storms,schools of fish.They also want to see if they can make the technology work in the other directionair to water.If the technology proves successful in real-world conditions
7、,expect“textingwhile diving”to be the latest underwater fashion.【文章大意】这是一篇说明文,讲述的是水下与陆地上的通信在之前是无法实现的。随着科技的进步,这一通讯逐渐能够变为现实。1.What does the author mainly talk about in Paragraph 1?A.The future of video chat underwater and in air.B.The difficulty of communication from water to air.C.The frustrations of
8、 developing underwater devices.D.The current situation of communicating with a submarine.【解析】选B。细节理解题。根据第一段的第二、三句“But communicating with a submarine or a diver is not so easy.The lack of practical methods for sharing data between underwater and airborne devices has long been a frustration for scient
9、ists.”可知,从水里向空气中传递信息,进行交流是很困难的。2.What does the underlined word“feasible”mean?A.Changeable.B.Convenient.C.Achievable.D.Alternative.【解析】选C。词义猜测题。根据第二段的第一句“Now,researchers at MIT have developed a method with the potential to revolutionize underwater communication.”可推断海底与外界的沟通实际上是可行的。所以该词的意思是“可行的,可实现的”。
10、3.What do we know about TARF?A.It is widely used to find downed planes.B.It can work well at great depths underwater.C.It is an underwater machine that sends signals.D.It can send,receive and read signals from underwater.【解析】选D。细节理解题。根据第三段前三句内容可知,TARF系统可以从水下发送、接收和读取信号。4.Which of the following is the
11、 best title for the passage?A.The Real-world Uses of Sonar TechnologyB.A Breakthrough in the Application of Video ChatC.Full Water-to-air Communication Closer to RealityD.TARF Becoming a New Means of Communication【解析】选C。标题归纳题。根据第一段的最后两句和第二段的第一句可知,本文讲述的是水下与陆地上的通信在以前是无法实现的,但随着科技的进步,这一通讯逐渐能够变为现实。.完形填空W
12、hy study history?People live in the present.They plan for the 1.History,however,is the study of the past.Given all the 2and pressures that come from living in the present and 3what is yet to come,why bother with what has been?Given all the available branches of knowledge,why insistas most 4systems d
13、o-on history?And why urge many students to study even more history than they are 5to?Any subject of study needs 6:supporters must explain why it is worth 7.Like most widely accepted 8,history attracts people who simply 9the information and modes of thought involved.But for people who are less intere
14、sted in the subject and more 10about why they should bother with it,a clearer explanation of its purpose is required.11do not perform heart transplants,improve highway design,or arrest criminals.In a society that quite correctly expects education to serve 12purposes,historys functions can seem more
15、difficult to 13than those of engineering or medicine.History is in fact very useful,actually 14,but the products of historical study are often less 15and immediate than those of other subjects.History helps us understand people,societies and how they 16.For example,how can we 17past wars(and future
16、threats)without using historical materials?Unfortunately,major aspects of a societys operation cannot be set up as precise experiments.18,history must serve,however imperfectly,as our 19,helping us understand who we are and why we do what we do.This,fundamentally,is why we cannot 20history.【文章大意】本文属
17、于议论文,讨论学习历史的必要性和意义。1.A.processB.resultC.futureD.environment【解析】选C。人们生活在当下,应当为将来做计划。process进程;result结果;future未来;environment环境。根据本句可知,为未来做计划,故选C。2.A.causesB.demandsC.choicesD.orders【解析】选B。考虑到生活在当下和预测未来的压力和需求(demand),为什么要花时间去考虑过去的事情呢?3.A.avoidingB.fearingC.celebratingD.anticipating【解析】选D。预测未来的压力和需求。avo
18、iding避免;fearing害怕;celebrating庆祝;anticipating预测。故选D。4.A.financialB.socialC.educationalD.political【解析】选C。考虑到所有可以获取的知识,为什么要坚持学历史呢?这是教育系统要求做的。financial金融的;social社会的;educational教育的;political政治的。故选C。5.A.requiredB.invitedC.forcedD.permitted【解析】选A。为什么要敦促学生学习超过他们需要的历史知识呢?required需要,要求;invited邀请;forced被迫;perm
19、itted允许。故选A。6.A.directionB.explorationC.justificationD.revolution【解析】选C。任何一门学科的学习都需要学习它的正当理由。direction方向;exploration探索;justification正当的理由;revolution革命。故选C。7.A.assessmentB.attentionC.expectationD.mention【解析】选B。支持的人必须要解释历史为何值得如此关注。assessment评估;attention注意,关注;expectation期待;mention提及。故选B。8.A.subjectsB.c
20、onceptsC.topicsD.concerns【解析】选A。历史是学生所学学科的其中的一门学科,故选A。9.A.provideB.receiveC.shareD.like【解析】选D。像大多数被接受的学科一样,历史吸引着那些喜欢(like)历史信息的人。10.A.doubtfulB.worriedC.thoughtfulD.certain【解析】选A。但是对于不怎么感兴趣人以及怀疑(doubtful)为什么要学历史的人来说,一个清晰的解释就很有必要了。11.A.SupportersB.HistoriansC.AudiencesD.Teachers【解析】选B。历史学家不会做心脏移植手术,不
21、会改进高速路的设计,也不会逮捕罪犯。Supporters支持者;Historians历史学家;Audiences听众;Teachers教师。根据后文可知,本段讲述历史的必要性,故选B。12.A.publicB.multipleC.differentD.useful【解析】选D。人们都希望学生所学的学科是有用处的。public公共的;multiple多样的;different不同的;useful有用的。故选D。13.A.defineB.expectC.satisfyD.ignore【解析】选A。历史的功能与工程学或者医学相比似乎很难让人定义。define定义;expect期望;satisfy满意
22、;ignore忽视。故选A。14.A.optionalB.attractiveC.accessibleD.essential【解析】选D。历史是非常有用的,甚至是必不可少的。optional选择的;attractive有吸引力的;accessible可接近的;essential必不可少的。故选D。15.A.valuableB.interestingC.obviousD.instructive【解析】选C。只是历史学研究的成果与其他学科相比没那么明显,那么立竿见影。valuable有价值的;interesting有趣的;obvious明显的;instructive有教育意义的。故选C。16.A.
23、imagineB.behaveC.fightD.fade【解析】选B。历史帮助我们理解人类和社会,了解古人的行为表现。imagine想象;behave表现;fight反抗;fade褪色。故选B。17.A.preventB.rememberC.evaluateD.declare【解析】选C。用历史资料去评估过去的战争或者将来的威胁。prevent阻止;remember回忆;evaluate评估;declare声称。故选C。18.A.ConsequentlyB.AlternativelyC.FortunatelyD.Admittedly【解析】选A。因此,尽管历史多么不完美,但必须要充当实验室,帮
24、助我们理解我们是谁,我们做一些事情的理由。Consequently因此;Alternatively或者;Fortunately幸运的是;Admittedly必须要承认的是。分析前后句可知,前后句属于因果关系,故选A。19.A.libraryB.laboratoryC.clinicD.museum【解析】选B。把历史当作实验室(laboratory),帮助我们理解我们是谁,以及我们做一些事情的理由。20.A.make up forB.give in toC.get close toD.stay away from【解析】选D。句意:从根本上来说,这就是我们不能不学历史的原因。make up fo
25、r弥补;give in to让步;get close to靠近;stay away from远离,不接近。故选D。.语法填空 阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。Since July 2019,Chinas online food-delivery platform Eleme 1._(carry)out a new service of picking up garbage from its users in Shanghai.The service comes after 2._ recently-released regulation on waste
26、 management in Shanghai.Individuals 3._ throw away their garbage without being sorted out can be fined up to 200 yuan,while companies and 4._(organize)can face fines up to 50,000 yuan.The trash takeaway service requires residents to sort 5._(they)own garbage before it 6._(pick)up by workers from Ele
27、me,who will ensure the waste is disposed of in the correct garbage bins.Its obvious that this service is 7._(convenience)to the old,especially to the disabled customers.8._,many netizens on Sina Weibo dont think Elemeis providing a wonderful service,saying it just wants 9._(make)money.They think 12
28、yuan for an order is too much.Besides,many more people doubt if these collectors will wash their hands after 10._(deal)with the trash.【文章大意】这是一篇报道类文章。主要是就上海饿了么在2019年七月公布的回收打包垃圾的话题展开讨论和人们的各种反应。1.【解析】has carried。考查动词的时态。根据本句的时间状语Since July 2019可知,用现在完成时,故答案为has carried。2.【解析】a。考查冠词。regulation是单数可数名词,故
29、答案为a。3.【解析】who/that。考查关系代词。先行词是Individuals指人,此处缺少定语从句的关系词,且关系词在定语从句中作主语,故答案为who/that。4.【解析】organizations。考查名词。根据and前后是并列关系,与companies并列,需要用名词复数,故答案为organizations。5.【解析】their。考查代词。根据句意可知,该处代词和它所修饰的名词表所属关系,用形容词性物主代词。故答案为their。6.【解析】is picked。考查动词的时态和语态。根据上下文可知,此处主语和动词之间是被动关系,在句中作谓语,主语it为单数,且全文时态为一般现在时
30、。故答案为is picked。7.【解析】convenient。考查形容词。此处需要形容词作表语,be convenient to对方便。故答案为convenient。8.【解析】However。考查副词。由空后句中dont think可知网友不赞同这种服务,因此上下文是明显的转折关系。故答案为However。9.【解析】to make。考查非谓语动词。表示“想要做某事”是want to do sth.,因此用不定式to make。10.【解析】dealing。考查非谓语动词。after在此处是介词,其后应用动名词作宾语。.书面表达(2021烟台模拟)假如你是李华。你校今年11月22日将迎来建
31、校30周年,学校将举行周年庆联欢晚会。请你代表校学生会给你校外教Jane写一封邮件,邀她参加晚会。要点如下:1.发出邀请;2.告知晚会相关事宜(时间、地点、参加人员等);3.表达期望。注意:1.词数80左右;2.可以适当增加细节,以使行文连贯;3.开头和结尾已给出,不计入总词数。参考词汇:周年联欢晚会Anniversary GalaDear Jane,_Yours,Li Hua【参考范文】Dear Jane,Its my pleasure to inform you that the Anniversary Gala will be held in our school.I sincerely
32、 invite you to attend it on behalf of the Students Union.The gala,which enjoys great popularity among us students,is scheduled to take place in the school hall at 6 pm on November 22.All the teachers and students will be present and a variety of wonderful performances will be put on.With a beautiful voice,you are also expected to give us a performance.Looking forward to your coming and brilliant performance.Yours,Li Hua本课结束
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