人教版选修七unit 2 robots using language课时作业（7）.docx

unit 2 robots using language课时作业一、单项填空1. even though the way lin daiyu expresses her feelings may be to a modern audience, it is rooted in her character and makes who she is.a.allergicb.foreignc.sensitived.fundamental2. you should first explore your talents and get to know yourself so as to make a list of you think your real interests lie.a.thatb.whatc.whered.how3. albert einstein was born in 1879.as a child,few people guessed that hea famous scientist whose theories would change the world.a.has beenb.had beenc.was going to bed.was4. i wonder what makes you a good salesperson.i as a waiter for three years, which contributes a lot to my todays work.a.serveb.have servedc.had servedd.served5. chinas silk road economic belt, accomplished, will quicken the economic growth of the countries along the route.a.unlessb.thoughc.onced.as6. a group of teen mountaineers have planned to conquer the second highest mountain in europe., they may succeed. a.favorable as the condition beingb.if the condition be favorablec.the condition is favorabled.the condition being favorable7. regular training in nursing, she could hardly cope with the work at first.a.not receivedb.since receivingc.having not receivedd.not having received8. its said that linda was picked out as a volunteer english teacher.yes. i about it in the school newspaper.a.was readingb.had readc.would readd.will read9. what do you think of steven hawking?well, despite his disabled body, he was a man of scientific nature, worthy of admiration.a.oneb.whoc.thatd.this10. try to to each person all your kindness and understanding and the world will be a better place to live in.a.appealb.caterc.extendd.attach二、阅读理解ain the united states alone, over 100 million cell-phones are thrown away each year. cell-phones are part of a growing mountain of electronic waste like computers and personal digital assistants. the electronic waste stream is increasing three times faster than traditional garbage as a whole.electronic devices contain valuable metals such as gold and silver. a swiss study reported that while the weight of electronic goods represented by precious metals was relatively small in comparison to total waste, the concentration(含量)of gold and other precious metals was higher in so-called e-waste than in naturally occurring minerals.electronic wastes also contain many poisonous metals. even when the machines are recycled and the harmful metals removed, the recycling process often is carried out in poor countries, in practically uncontrolled ways which allow many poisonous substances to escape into the environment.creating products out of raw materials creates much more waste material, up to 100 times more, than the material contained in the finished products. consider again the cell-phone, and imagine the mines that produced those metals, the factories needed to make the box and packaging (包装)it came in. many wastes produced in the producing process are harmful as well.the u.s. environmental protection agency notes that most waste is dangerous in that “ the production, distribution, and use of productsas well as management of the resulting wasteall result in greenhouse gas release.”individuals can reduce their contribution by creating less waste at the startfor instance, buying reusable products and recycling.in many countries the concept of extended producer responsibility is being considered or has been put in place as an incentive(动机)for reducing waste. if producers are required to take back packaging they use to sell their products, would they reduce the packaging in the first place?governments incentive to require producers to take responsibility for the packaging they produce is usually based on money. why, they ask, should cities or towns be responsible for paying to deal with the bubble wrap(气泡垫)that encased your television?from the governments point of view, a primary goal of laws requiring extended producer responsibility is to transfer both the costs and the physical responsibility of waste management from the government and tax-payers back to the producers.1.by mentioning the swiss study, the author intends to tell us that.a.the weight of e-goods is rather smallb.e-waste deserves to be made good use ofc.natural minerals contain more precious metalsd.the percentage of precious metals is heavy in e-waste2. the responsibility of e-waste treatment should be extended.a.from producers to governmentsb.from governments to producersc.from individuals to distributorsd.from distributors to governments3.what does the passage mainly talk about?a.the increase in e-waste.b.the creation of e-waste. c.the seriousness of e-waste.d.the management of e-waste.bhowever wealthy we may be,we can never find enough hours in the day to do everything we want.economics deals with this problem through the concept of opportunity cost,which simply refers to whether someones time or money could be better spent on something else.every hour of our time has a value.for every hour we work at one job we could quite easily be doing another,or be sleeping or watching a film.each of these options has a different opportunity costnamely,what they cost us in missed opportunities.say you intend to watch a football match but the tickets are expensive and it will take you a couple of hours to get to and from the stadium.why not,you might reason,watch the game from home and use the leftover money and time to have dinner with friends?thisthe alternative use of your cash and timeis the opportunity cost.for economists,every decision is made by knowledge of what one must forgoin terms of money and enjoymentin order to take it up.by knowing precisely what you are receiving and what you are missing out on,you ought to be able to make better-informed,more reasonable decisions.consider that most famous economic rule of all:theres no such thing as a free lunch.even if someone offers to take you out to lunch for free,the time you will spend in the restaurant still costs you something in terms of forgone opportunities.some people find the idea of opportunity cost extremely discouraging:imagine spending your entire life calculating whether your time would be better spent elsewhere doing something more profitable or enjoyable.yet,in a sense its human nature to do precisely thatwe assess the advantages and disadvantages of decisions all the time.in the business world,a popular phrase is “value for money.”people want their cash to go as far as possible.however,another is fast obtaining an advantage:“value for time.”the biggest restriction on our resources is the number of hours we can devote to something,so we look to maximize the return we get on our investment of time.by reading this passage you are giving over a bit of your time which could be spent doing other activities,such as sleeping and eating.in return,however,this passage will help you to think like an economist,closely considering the opportunity cost of each of your decisions.4.according to the passage,the concept of “opportunity cost” is applied to.a.making more moneyb.taking more opportunitiesc.reducing missed opportunitiesd.weighing the choice of opportunities5.the “leftover.time” in paragraph 3 probably refers to the time.a.spared for watching the match at homeb.taken to have dinner with friendsc.spent on the way to and from the matchd.saved from not going to watch the match6.what are forgone opportunities?a.opportunities you forget in decision-making.b.opportunities you give up for better ones.c.opportunities you miss accidentally.d.opportunities you make up for.参考答案及全解全析单项填空1.b考查形容词辨析。allergic过敏的,讨厌的;foreign外国的,陌生的;sensitive 敏感的;fundamental根本的,基础的。句意:即使林黛玉表达情感的方式可能对现代观众来说有些陌生,但这却根植于她的性格并且造就了她自身。故选择b项。2.c考查名词性从句。句意:你应当首先开发你的天赋,了解自己,以便列出一个你认为你真正的兴趣所在的地方的名单。此处是由where引导的宾语从句,作介词of的宾语,同时where在宾语从句中作地点状语。故选c。3.c句意:阿尔伯特爱因斯坦出生于1879年。在他小时候,很少有人会猜到他将来会成为一位用其理论改变世界的著名科学家。本题考查动词时态。根据语境可知此处要用过去将来时,故选c。4.d句意:我想知道什么使你成为一个好的销售员。我当了三年服务员,这对我现在的工作很有帮助。考查时态。根据句意,做服务员是过去发生的事,因此才说对现在销售员的工作产生很多帮助,用过去式即可,故选d。5.c考查连词。句意:中国丝绸之路经济带一旦被建成,将加快沿途各国的经济增长。once一旦。6.d考查独立主格结构。句意:一组青少年登山者计划征服欧洲的第二高峰。情况够好的话, 他们可能会成功。a项中as为连词,其后从句缺谓语动词。b项中if从句中系动词be错。c项为简单句,带入句中,两个逗号连接的句子必须出现连词,句中没有连词,故排除。d项为正确的独立主格结构,即名词+非谓语动词。7.d句意:由于没有接受过正规的护理培训,起初她几乎无法应付这份工作。考查非谓语动词。句中receive和主语she是主动关系,用doing形式。且receive发生在主句谓语动词之前,用having received,not放在非谓语动词前。故选d。8.a句意:据说linda被选为当一名志愿者英语老师。是的。我刚在学校报纸上看到了。本题考查动词的时态。根据上下文语境以及yes可知,第二个人刚在报纸上看到这个消息,过去进行时表示刚刚在进行的动作,故选a项。9.a句意:你认为斯蒂芬霍金怎么样?嗯,尽管身体残疾,但他是一个有科学天赋的人,一个值得敬佩的人。本题考查代词的用法。one替代前面的a man,worthy of.为形容词短语作后置定语;如果用who引导定语从句,worthy前需有be动词。故选a项。10.c考查动词。句意:设法把你的善意和理解给每个人,世界就会变成一个更好的居住的地方。extend sth. to sb.“提供,给予,表示”,故选 c。阅读理解a语篇解读本文为说明文,题材为环境保护类。随着电子数码科技的进步,越来越多的电子垃圾产生了,手机、电脑、个人电子器件等被扔掉的越来越多。这些被扔掉的电子垃圾中含有一些像金银之类的贵重金属,当然也有很多有毒物质。那我们该如何处理这些电子垃圾呢?1.b推理判断题。根据第二段第二句中.the concentration of gold and other precious metals was higher in so-called e-waste than in naturally occurring minerals可知,瑞士的一项研究结果表明,电子垃圾中贵重金属的含量比自然界中矿石中贵重金属的含量还要高。由此推断作者旨在说明这些电子垃圾值得被充分利用,故选b项。2.b推理判断题。根据文章最后一段.a primary goal of laws.is to transfer both the costs and the physical responsibility of waste ma