1、Unit 3 Inventors and inventions .阅读理解AHumans have launched themselves into the outer space. Theyve landed on the moon. Theyve built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planetspecifically, Mars.The problem is that its no easy task. The pl
2、anet is 586 times further away from the Earth than the moon, and itll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone
3、deterioration(损耗)Heres where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme gforce(重力) of a rocket launch.M
4、ice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. Theyre small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests
5、 in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgiu
6、m, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station(ISS)This experiment was part of a wider NASA mission(任务) called the Mice Drawer System(MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, m
7、onitored, and automatically fed and watered aboard the ISS, among which three survived during the mission. The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia(贫血) and heart health.Results for the 20 experiments are coming in gradually. But its
8、 clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.语篇导读本文为说明文。人类从未停止对未知的探索，继人类踏上月球之后，人类开始探索去往火星的旅程。1We can infer from Paragraphs 23 that _.AMars is the farthest planet away from Earth discovered so farBthe journey to Mars could put humans health at
9、 riskCit was in the late 1940s that animals were first sent to the ISSDanimals that have been sent into space have mostly survived解析 B推理判断题。根据第二段最后一句可知，正是因为去往太空可能会有这些健康问题，所以第三段写到要先用小动物来做实验，故选B项。2The underlined word “withstand” in Para.3 means _.Aset upBhold upCwork outDcome across解析 B词义猜测题。根据画线词所在句子
10、可知，这些实验早在20世纪40年代就开始了，第一个实验是观测生物是否能够忍受火箭发射的巨大重力。hold up支持住；承受住，故选B项。3According to Betty Nusgens and her team, the mice aboard the ISS _.Asuffered the loss of part of their skin Ball survived for the duration of the missionCwere fed and watered by the astronauts Dparticipated in 20 experiments that m
11、ade great breakthroughs解析 A细节理解题。根据第五段可知，在国际空间站待了91天后，这些老鼠的皮肤变薄了15%，故选A项。4The main purpose of the article is to _.Adescribe the role mice play in scientific researchBreport on the results of the Mice Drawer SystemCanalyze how mice could pave the way to MarsDchange peoples traditional attitudes towar
12、d mice解析 C写作意图题。文章主要讲述了为检测人类在去往火星探索的旅程中可能遭受的身体损害，需要用小动物来做实验，而在众多小动物中，老鼠被认为是最适合的，因此老鼠为人类通向火星奠定了基础，故选C项。BWhat do you do when you need to look something up? Go to the library? Open an encyclopedia(百科全书)? Click onto the Internet? These days, most people go straight to Wikipedia, the online encyclopedia.
13、 But how reliable is it?There is no denying the popularity and usefulness of Wikipedia. It attracts as many as 78 million visitors every month, and the site is available in more than 270 different languages. Its one of the most comprehensive resources available, which includes almost all details, fa
14、cts and information that may be concerned. Its got much more information than an ordinary encyclopedia. The site is updated on a daily basis by thousands of people around the world. Anyone with an Internet connection can log on and edit the contents or add a new page. And you dont need any formal tr
15、aining.Of course, there are some controls. Wikipedia has a team of more than 1,500 administrators who check for false information. And main targets for harmful comments (such as politicians) are offlimits to public editing. But with more than 16 million articles to keep an eye on, it isnt easy. So,
16、while Wikipedia benefits from being constantly updated with information from all over the world, its also open to “vandals”(破坏他人财产者)Some of the damage is easy to notice. One person drew devil horns and a moustache on Microsoft chairman Bill Gates photo, while another edited Greek philosopher Platos
17、biography to say he was a “Hawaiian weather man who is wildly believed to have been a student of Barney the purple Dinosaur and to have been deeply influenced by his dog, Cutie”But other things are harder to spot. The most common form of vandalism involves adding tiny items of false information into
18、 the biography of a famous person. Unbelievably, some of this misinformation has appeared in newspapers, with The Daily Mail, The Guardian and The Independent all having fallen victim to the dirty tricks. For example, in an article about British comedian Sir Norman Wisdom, one newspaper claimed that
19、 he cowrote Dame Vera Lynns wartime hit Therell be bluebirds over the White Cliffs of Dover. He did no such thing. And in another article, it was reported that TV theme tune composer Ronnie Hazlehurst had written the S Club 7 hit Reach. Once again, not true.So, if youre going to use any information
20、from Wikipedia, make sure you doublecheck it first.语篇导读本文为议论文，介绍维基百科的受欢迎程度，指出其优点，同时也指出其有些信息有虚假成分的不足之处。5Which of the following would the author most probably agree with?ABefore using the information from Wikipedia, one should first check it.BThough popular and widely used, Wikipedia provides little r
21、eliable information.CIt is understandable that some people add false information to Wikipedia.DUpdated on a daily basis, any information from Wikipedia is reliable.解析 A细节理解题。根据最后一段可知，A项准确地表达了作者的建议。B项表述过于否定；C项表述有误；D项表述过于肯定，故选A项。6We can learn from the passage that _.Abecause of its popularity, 78 mill
22、ion people from 270 countries visit Wikipedia monthlyBWikipedia is the most comprehensive resource with all information we needCanyone who has access to the Internet can edit any contents of Wikipedia as they likeDthe primary job of the administrators is to make sure true information is conveyed解析 D
23、细节理解题。根据第二段第二句可知，A项表述有误；由第二段第三句可知，B项错误；由第三段第三句可知，C项错误。D项是对第三段第二句的另一种表述，准确反映了原文信息，故选D项。7What does the underlined part “offlimits” in Paragraph 3 mean?ANot convenient.BNot welcome.CNot accessible.DNot boundless.解析 C词义猜测题。根据第三段第一句可推知，offlimits意为“禁止入内；禁止使用”，故选C项。8Whats the writers attitude to Wikipedia?
24、ANegative.BWorried.CIndifferent.DObjective.解析 D观点态度题。从全文来看作者分别介绍了维基百科的优缺点，客观地对其进行了评述，故选D项。.语法填空Grow vegetablesWith high inflation(通货膨胀) and food shortages across Russia, some Russians are growing their own 1.vegetables(vegetable). The countrys struggling economy has kept food prices rising and put m
25、illions of people 2.in poverty. In the former Soviet Union, Russians 3.who/that lived in traditional country homes called dachas often grew their own food.Today, many Russian familiesincluding some in citiesare again growing food 4.to deal(deal) with the hard economic times. Irina Bulozhenko lives a
26、nd works in Moscow. “Our grandma has a dacha where she grows lots of things like cabbages and beets. I am cooking borscht right now 5.and am using our beets and carrots. The onions are ours. So we are saving on what we 6.have grown(grow) in summer. So thats why we dont feel it so badly.”But for some
27、 families, 7.growing(grow) their own share food is still not enough. To help them, Russian volunteers have set up Share Food Program. The food 8.is donated(donate) by restaurants or individuals, and given to those in need.Tatyana Golubyeva said that receiving food through the program had become 9.im
28、portant(importance) to her family. “We spend now a lot less on food than before, when we did not know about Share Food Program and did not use it. Now we hope that well get not only bread, 10.but some other food, as well.” She noted that the donations had cut the amount her family spends on food in
29、half.语篇导读本文为说明文。俄罗斯经济的不景气，导致食品物价上涨，国内出现高通货膨胀以及食物短缺。一些俄罗斯人开始自己种植蔬菜，以减少日常食物方面的开支。1vegetables解析 考查名词的数。vegetable为可数名词，根据语境可知用复数形式。2in解析 考查介词。in poverty贫困，处于贫困中。3who/that解析 考查连词。句中的lived in traditional country homes called dachas为定语从句，修饰先行词Russians。定语从句中缺少主语，故用关系代词who/that。4to deal解析 考查非谓语动词。此处为不定式短语作目的
30、状语。5and解析 考查连词。根据句子结构可知，空处前后两个句子为并列关系，故用and连接。6have grown解析 考查时态和主谓一致。句意：因此，我们通过食用今年夏天耕种的食材，达到了节约的目的。表示过去的动作对现在产生的影响，故用现在完成时态；从句主语为we，谓语动词用复数形式。7growing解析 考查非谓语动词。句意：但对很多家庭来说，自己种植食材还远远不够。从句子结构看，此处为动名词短语growing their own food作主语。8is donated解析 考查时态、语态和主谓一致。句意：这些食物由餐馆或者个人捐赠，给予那些需要帮助的人。讲述的是现在的情况，用一般现在时；
31、主语为the food，谓语动词用第三人称单数形式；the food与donate之间为动宾关系，故用被动语态。9important解析 考查词性转换。此处要用形容词作表语。10but解析 考查连词。not only.but(also).不但而且。.短文改错One day I saw an advertisement in a local newspaper. I up the company, and I was given the job immediately. They asked me to take a tour around the city next morning. The
32、manager just told me to say anything I could imagine about the city. My first tour was . The old bus was not airconditioned, it was in the middle of summer, so was really uncomfortable to be inside the bus. The soon became very hot and badtempered. I had a very hard time them down. This was I stayed
33、 there only for a few weeks. Then I left and joined in a better company. 解析 动作发生在过去，故用一般过去时。 解析 the next morning特指过去那个时间的第二天早晨。 解析 这是一个定语从句，先行词为anything，关系代词只能用that。 解析 此处was后用形容词，构成系表结构。 解析 句意：旧公交没有空调，并且是在盛夏时节，因此会感到不舒服。上下句之间为递进关系，故用and。 解析 不定式是真正的主语，用it作形式主语。 解析 应该是许多游客。 解析 have a hard time doing s
34、th做某事有困难。 解析 This is/was why.这就是为什么。 解析 join in指的是加入活动，与company不符；join指的是加入某组织或团体，故in多余。.书面表达在国外某知名学习论坛上，一名署名为Jack的中学生认为许多同学不会合理安排时间，于是邀请网友参与讨论。假如你对此话题感兴趣，现请你用英文回帖，分析合理安排时间的重要性，并分享自己在学习生活中安排时间的经验或教训。注意：1.词数100左右；2.适当增加细节以使行文连贯。【参考范文】Dear Jack，Its due to the inappropriate assignment of time that we o
35、ften find it difficult to fulfill tasks in time, which often leads to low efficiency and failures.But, as a matter of fact，we can take certain steps to help ourselves out. The following is how I usually arrange my time. Firstly, I list all the jobs that must be done and decide which one requires imm
36、ediate attention.Secondly，I divide the work into separate parts so it will be easier to see whether each part is being accomplished as desired. Finally, I assign each task a certain amount of time so that it will be carried out systematically.If we assign our time appropriately, well find all the work will be done in time and a sense of accomplishment will replace the anxiety at first.
