2020-2021学年新教材人教版英语必修第三册习题：课时作业18 UNIT 4 DISCOVERING USEFUL STRUCTURES WORD版含解析.DOC

1、.阅读理解China successfully launched space lab Tiangong2 into space, meaning another historic step towards building a manned space station around 2020.Measuring 10.4 meters in length, the tubelike Tiangong2 is designed to enable two astronauts to live in space for up to 30 days and to receive spaceships

2、.Once inside Tiangong2, two astronauts arriving from the Shenzhou11 spaceship will carry out key experiments related to inorbit equipment repairs, aerospace medicine, space physics and biology, such as space clocks and solar storm research. The number of experiments carried out by Tiangong2 will be

3、the highest of any manned space mission (航天任务) so far.The successful launch of the Tiangong2, along with the first flight of Chinas new generation carrier rocket Long March7 in June, 2016, bodes_well_for the final stage of Chinas threestep manned space plan.The first step, to send an astronaut into

4、space and return safely, was fulfilled by Yang Liwei in the Shenzhou5 mission in 2003. The second step is developing advanced space flight technologies, including the launch of two space labs. Finally, the third step will be to operate a manned space station.Once the space lab mission comes to an en

5、d, China will start building our own space station, which is planned for completion by around 2020. The Chinese space station will be much smaller than the current International Space Station (ISS), but it can be expanded for scientific research and international cooperation. With the ISS set to ret

6、ire in 2024, the Chinese station will offer a promising choice, and China will be the only country with a permanent (永久) space station.这是一篇新闻报道类阅读。文章主要讲了中国成功将天宫二号空间实验室送入太空，这意味着中国朝着2020年左右建成载人空间站又迈出了历史性的一步。1What do we know about Tiangong2?AIt is able to receive spaceships.BIt sent two astronauts into

7、 space.CIt was launched by Long March7.DIt works for international research.答案：A解析：细节理解题。答案定位在第二段Measuring 10.4 meters in length, the tubelike Tiangong2 is designed to enable two astronauts to live in space for up to 30 days and to receive spaceships.可知天宫二号能够接收宇宙飞船，故选A。2What does the underlined phra

8、se “bodes well for” probably mean?AMakes up. BTurns out to be.CMainly results from. DSuggests the success of.答案：D解析：词义猜测题。画线短语所在的句子意思是天宫二号的成功发射，以及中国新一代运载火箭长征七号的首次发射，成功预示了中国载人航天三步走计划进入最后阶段。由此可知“bodes well for”意思是“很好地表明”，故选D。3What is the best title for the text?AOne Step Closer to Tiangong2B3 Steps of

9、 Chinas Space PlanCChinas Space Lab LaunchedDSpace Station, Chinas Dream答案：C解析：标题判断题。第一段中China successfully launched space lab Tiangong2 into space, meaning another historic step towards building a manned space station around 2020.是全文的主题句，结合全文内容 ，可知这篇文章主要讲了中国成功将天宫二号空间实验室送入太空，这意味着中国朝着2020年左右建成载人空间站又迈

10、出了历史性的一步。故选C。.七选五Five steps to better handwritingSome kids love handwriting, but others hate it when its time to put pen to paper. Maybe they are worried about their handwriting. Are you one of them? _1_ Here are five steps that really work!Get a great graspTry thishold your pencil at the top and tr

11、y to write your name. Pretty hard? But when you hold your pencil the correct way, writing is much easier. _2_ Hold it in place with your thumb (拇指), and your index and middle fingers.Let the lines be your guideLined paper is your friend! Those lines can help you create letters that are of the right

12、size and proportion (比例). _3_ Also be sure to fill up the lined space completely. Those capital letters should be from the bottom line to the top one.Slow downIf your writing is hard to read, try slowing down a little. If you rush, its hard to control where you stop and start your letters.Lower the

13、pressure (压力)_4_ That makes it harder to make the smooth lines. Try relaxing and dont hold the pencil too hard._5_Lots of games need you to write or draw pictures. So even though its not schoolwork, youre still using the skills you need to control your pencil better.APlay gamesBAsk for adviceCYouve

14、been writing since you were a little kid.DSo“a”should be half the height of a capital“A”ESome kids press down really hard when they write.FThe best way to hold a pencil is to rest it next to the base of your thumb.GThe good news is that just about everyone can improve their handwriting.这是一篇说明文。短文介绍了

15、提高书写质量的五个步骤。1G解析：由“Maybe they are worried about their handwriting. Are you one of them? _1_ Here are five steps that really work！”可知，也许他们担心自己的书写。你是他们中的一员吗？这里有五个真的很有用的步骤。所以小题1要起到承上启下的作用。故G选项“好消息是，几乎每个人都可以提高他们的书写”切题。故选G项。2F解析：由“ Hold it in place with your thumb(拇指), and your index and middle fingers.”

16、可知，用拇指、食指和中指将其固定到位。所以小题2与后一句一同来说明如何正确地拿笔。故F选项“拿铅笔最好的方法是让它靠在拇指上”切题。故选F项。3D解析：由“Those lines can help you create letters that are of the right size and proportion (比例)”可知，这些线条可以帮助写出大小和比例合适的字母。所以小题3要举例说明这些线在书写时的作用。故D选项“所以a应该是大写字母A的一半高”切题。故选D项。4E解析：由“That makes it harder to make the smooth lines”可知，这样就很难

17、写出平滑的线条。所以小题4要说明哪种情况导致很难写出平滑的线条。故E选项“有些孩子写字的时候很用力”切题。故选E项。5A解析：由“Lots of games need you to write or draw pictures. So even though its not schoolwork, youre still using the skills you need to control your pencil better”可知，很多游戏都需要你去写或者画画。所以即使这不是作业，你仍然在使用你需要的技能来更好地控制你的铅笔。所以本段主要在说明玩游戏也可以帮助你提高书写质量，也就是小题5

18、本段的标题所要说明的内容。故A选项“玩游戏”切题。故选A项。.语法填空Nowadays, millions _1_ lonely singles are now going online instead. The World Wide Web is quickly becoming _2_ worlds most popular matchmaker (媒人)Singles are flocking (涌向) to the Internet _3_ (main) because their busy lifestyles leave them little time to look for a

19、 significant other. Using dating sites (约会网址) is quick and convenient. Many singles say the regular dating scene _4_ (just lead) them from one bad experience to _5_ and are ready to try something else. Dating sites also make _6_ easy to avoid someone _7_ you are not interested in. In the real world,

20、 _8_， ignoring someone you dont like can be difficult.Despite all the advantages, online dating also presents its own set of problems. People arent always those who they declare to be in their online _9_ (describe). Safety is another concern. You are just _10_ (like) to find a criminal online as you

21、r Mr or Miss Right.本文为记叙文。文章主要介绍了网络交友方面的问题，并提出了安全方面的建议。1of解析：考查介词。句意：现在，数以百万计的孤独的人在上网。millions of “数以百万的，成千上万的”是固定用法，表示概数，故填of。2the解析：考查冠词。句意：网络正在迅速成为世界上最受欢迎的媒人。最高级前应加定冠词the，故填the。3mainly解析：考查副词。句意：单身人士蜂拥而至地上网，主要是因为他们忙碌的生活方式使得他们几乎没有时间去寻找另一个重要的人。此处修饰because引导的原因状语从句，用副词，表示“主要因为”，故填mainly。4has_just_le

22、d解析：考查时态。句意：许多单身人士说，普通的约会场景只是把他们从一次糟糕的经历引向另一次。根据语境可知，此处表示动作已完成，并对现在有影响，因此要用现在完成时，故填has just led。5another解析：考查代词。句意：许多单身人士说，普通的约会场景只是把他们从一次糟糕的经历引向另一次。from one to another“从一个到另一个”，是固定搭配，故填another。6it解析：考查代词。句意：约会网站也可以很容易地避开你不感兴趣的人。此处指网上约会可以使相亲更简单， 要用it指代后面的动词不定式，故填it。7who/whom解析：考查关系代词。本句中包含定语从句，先行词是someone，在定语从句中作宾语，指人，故填关系代词who/whom。8however解析：考查副词。句意：然而，在现实生活中，忽视你不喜欢的人其实很难。现实中和网络中形成对比转折，故填however。9description解析：考查名词。句意：人们并不总是像他们在网上描述的那样。此处由their online修饰，后面用名词，指“他们在网上的描述”，故填description。10likely解析：考查固定搭配。句意：安全是另一个问题。你很可能在网上找到一个罪犯。“be likely to do sth.，”为固定搭配，意为“有可能做某事”，故填likely。