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1Unit4LifeonMars单元知识清单Unit4♦重点单词Ⅰ.根据汉语意思,写出相应的英文单词1.头盔helmet2.重力gravity3.行星planet4.拥挤的crowded5.被污染的polluted6.快的,迅速的rapid7.增加increase8.乘客passenger9.使人不舒服的;不舒适的uncomfortable10.氧气oxygen11.味道好的tasty12.专门地,特地specially13.飘浮;漂浮float14.比较compare15.网络network16.挑战性的challenging17.快地,迅速地rapidly18.知道,意识到aware19.围绕;将……圈起来circle20.n.一致,同意agreement21.距离;远处distance22.可能性possibility23.外星人alien24.外来者,陌生人stranger25.百分率;百分数percentage26.劣势,缺点,不利条件disadvantage27.风险,危险risk28.[复]商品,货品goods29.电子的electronic30.娱乐entertainmentⅡ.根据要求写出下列单词的变化形式1.drydried(adj.)2.sleepsleepy/sleeping/asleep(adj.)3.crowdcrowded(adj.)4.pollutepolluted(adj.)2pollution(n.)5.specialspecially(adv.)6.challengechallenging(adj.)7.agreeagreement(n.)disagree(反义词)8.possiblepossibly(adv.)possibility(n.)9.entertainentertainment(n.)♦重点短语根据汉语意思,写出相应的英文短语1.干粮driedfood2.睡袋sleepingbag3.再;重新(all)overagain4.以……速度行驶atthespeedof5.以……的形式intheformof6.随着……的发展withthedevelopmentof7.到2100年为止bytheyear21008.与……相比comparedto/with9.A和B之间的距离thedistancebetweenAandB10.大量的乘客alargenumberof/largenumbersofpassengers11.对某人有极大的帮助beofgreathelp/beveryhelpfultosb12.专门设计来做某事bespeciallydesignedtodosth13.把A连接到BconnectAtoB14.与……相似besimilarto15.开展;执行carryout16.……的优势advantagesof...17.以……开始start/beginwith18.意见一致inagreement19.……的可能性thepossibilityof20.毕竟afterall21.公共交通系统publictransportsystem22.记英语日记keepanEnglishdiary23.考虑做某事thinkabout/considerdoingsth24.想要做某事feellikedoingsth25.知道beawareof26.你觉得……怎么样?Howdoyoulike...?/Whatdoyouthinkof...?27.对某人/物有害doharmtosb/sth=beharmfultosb/sth=harmsb/sth28.值得冒险beworththerisk/takingtherisk29.离地球很远far(away)fromtheEarth♦重点句型根据汉语意思完成句子,每空一词31.人们有望能够在火星上重新开始,建设一个更好的世界。ItishopedthatpeoplecouldstartalloveragainandbuildabetterworldonMars.2.此处描述的是那里的生活可能是什么样子。Hereiswhatlifetherecouldbelike.3.目前,我们的宇宙飞船太慢了,无法运送大批的乘客去火星——因为要花几个月的时间。Atpresent,ourspacecraftaretooslowtocarrylargenumbersofpassengerstoMars—itwouldtakemonths.4.随着技术的发展,到2100年,乘坐以光速飞行的宇宙飞船,行程或许只要大约20分钟!Withthedevelopmentoftechnology,bytheyear2100,thejourneymightonlytakeabout20minutesinspacecraftthattravelatthespeedoflight!5.食物很大可能会以药片的形式存在,而且味道没那么可口。Foodwouldmostprobablybeintheformofpillsandwouldnotbesotasty.6.火星上的重力大约只有地球上的八分之三。ThegravityonMarsisonlyaboutthree-eighthsofthatontheEarth.7.与地球上的生活相比,火星上的生活在有些方面要更好些。ComparedwithlifeontheEarth,lifeonMarswouldbebetterinsomeways.8.每个学生家里都有一台电脑与星际网络连接。Everystudentwouldhaveacomputerathomeconnectedwithaninterplanetarynetwork.9.火星上的生活,不仅有趣,而且还很有挑战性。LifeonMarswouldbeinterestingaswellaschallenging.