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1、阅读下面的短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式(每空不多于三个单词)。AWhat will our world be like in 2050? We asked a group of experts to make their predictions about our future.By 2050 we will have “clever” cars. We wont have so many accidents _1_ they will be able to communicate with each other. Cars will slow down by
2、 _2_(them) or stop in dangerous situations. Also, our cars will _3_(run) on electricity or water.By 2050 our homes will be more ecofriendly(环保的). We will use solar(太阳的) energy, and we will clean and recycle our water. There will _4_(be) many more people in the world and our houses will be _5_(small)
3、. Many houses will be underground and we will have robots _6_(help) clean, cook and do our home shopping.We wont die! We will put our _7_(brain) onto computers and live forever. The computers of the future wont look _8_ machines. Theyll look like humans.By 2050 there will be too many people on the e
4、arth and over 100 _9_(million) people will be living on the moon and other planets. We will be able to travel to Mars and back _10_ just three days.1_2._3._4_5._6._7_8._9._10_BHitchbotHave you ever seen a hitchhiker(搭便车的旅行者) standing by the side of a road? Now drivers in Canada might see _11_ unusua
5、l hitchhiker：a hitchhiking robot.One of its inventors, David Harris Smith, has hitched across Canada three times. Smith and a friend, Frauke Zeller, have built Hitchbot because they wanted _12_(see) if people would stop and give the robot a lift and talk to it. The robot can chat about things it has
6、 learned, and about _13_(it) trip. You might think its a joke, _14_ Smith and Zellers experiment has a serious point: can robots and people get along?Hitchbot _15_ (begin) its journey in Nova Scotia in July.It has already completed a third of its 6，000mile trip to Victoria. More than 57，000 people a
7、re following its journey _16_(close) on Facebook and Twitter, and travelers have posted lots of _17_ (photo) on the websites. Hitchbot has also done some shopping, eaten motor oil, and had fun with travelers. Nobody knows _18_ it will finish its journey. It might be _19_(long) than expected, but Zel
8、ler and Smith want Hitchbot to get _20_ many rides as it can. It hasnt been in a selfdriving car yet, but anything is possible! 11_12._13._14_15._16._17_18._19._20_A【主旨大意】 本文是一篇说明文。文章主要是对2050年生活的一些预测。1because考查原因状语从句。句意：由于汽车能互相交流，所以我们就不会有太多事故。故填because。2themselves考查反身代词。by oneself意为“通过自己；独自地”。故填them
9、selves。3run考查一般将来时。will后面跟动词原形，故填run。4be考查there be句型的一般将来时。be用动词原形。5smaller考查形容词比较级。句意：世界上将会有更多的人，我们的房子会更小。故填smaller。6to help考查动词不定式。have sth. to do sth.，意为“有某物来做某事”。故填to help。7brains考查名词复数。由our可知，此处应该用复数形式，故填brains。8like考查动词短语。look like machines意为“看起来像机器”。故填like。9million考查数词。当具体的数词修饰million时，millio
10、n用单数。10in考查介词。“in一段时间”常和一般将来时连用。B【主旨大意】 本文向读者介绍了一个旅行机器人，该旅行机器人的旅行情况备受人们的关注。11an考查冠词。hitchhiker是单数可数名词，unusual以元音音素开头，所以要用不定冠词an。12to see考查固定搭配。want to do sth.意为“想要做某事”。13its考查物主代词。trip和it是所属关系，所以此处要用物主代词its。14but考查连词。分析句子结构可知，前后两句是转折关系，所以要用but。15began16closely考查副词。此处要用副词closely修饰“are following”。17photos考查名词复数。lots of后面要用photo的复数形式photos。18when19longer考查形容词比较级。由than可知此处要用比较级longer。20as考查asas用法。