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Unit4Astronomy:thescienceofthestarsI.Words
1..harmfuladj.有害的harmnv损害;伤害搭配doharmtobeharmfulto对、、、有害Fruitjuicecanbeharmfultochildren’steethsomumsaidtoherchild:“Don’tdrinktoomuchjuicebecauseitcandoharmtoyourteeth.”果汁有可能对孩子的牙齿有害,因此妈妈对孩子说“不要喝太多的果汁,因为它对你的牙齿有害
2.puzzlen.迷;难题vt.vi(使)迷惑;(使)为难puzzling令人迷惑的puzzled感到困惑的Therewasapuzzledlookonherfacebecauseapuzzlingproblempuzzledthelittlegirl.她脸上有迷惑不解的神情,因为有道令人费解的问题使这个小女孩困惑3.existvi.存在;生存Thereexistsnothingonthelonelyislandsonobodycanexistthere.在这个荒岛上没长任何东西,因此没人能在这儿生存
4.presencen.出席,到场,存在Hehardlyseemedtonoticemypresence.他似乎没有注意到我在场知识拓展presentadj.现存的,当前的presentn.礼物,礼品,目前,现在presentv.颁发,授予,把交给,展现,显示presentsthtosb=presentsbwithsth把某物交给某人;颁发Hepresentedabooktome.他送给我一本书II.Phrases
1.intime及时,终于Tomwhousedtobelatecangettoschoolintimenow.Hehaslearnedtobepunctual守时的intime.经常迟到的汤姆现在能及时到校了他终于知道守时了拓展allthetime一直;始终atthesametime与此同时atatime一次;每次atonetime一度(过去)有个时期attimes有时;不时innotime立刻;很快
2.prevent…from阻止…干…Theheavyrainpreventedusfromgoingtoschool.大雨阻止了我们去学校拓展keep….from…阻止…干…stop….from….阻止…干…protect…from/against保护…免遭…
3.nowthat既然引导原因状语从句that可以省略Now(that)youhavegotachanceyoushouldmakegooduseofit.既然你得到了一个机会,你就应该好好利用它
4.breakout突发爆发没有被动形式breakdown毁掉破坏机器出故障身体垮掉breakin破门而入打断breakup粉碎拆开放假结束breakawayfrom脱离挣脱及时巩固一
1.MaryandJohnweregoodfriendbutafteraquarrelthey_________.brokeup
2.Don’t__________whenwearetalking.breakin
3.Theprisoner___________________hisguards.brokeawayfrom
4.Hisplan____________atlast.brokedown
5.Theeconomiccrisis__________firstintheUSA.brokeout及时巩固二givebirthtosystempuzzleexistviolentintimePeoplegavebirthtoanidealongagothatthepresentsystemofeducationshouldbeimproved.Whatpuzzlesmeiswhyanewsystemofeducationdidn’tturnupuntilnow.ButIbelievethatitwillexistthroughviolentstruggleintime.很久以前人们就有一种想法当前的教育体系应当改进使我不解的是为什么一种新的教育体系迄今还没有出现但我相信通过艰苦的探索最终会存在的III.SentencePatterns
1.accordingto根据
2.beginwith以、、、开始
3.inalldirections朝四面八方
4.intime及时;迟早
5.fill…with用、、、充满
6.allsortsof各种各样的
7.aswellas也,以及;除了、、、还有
8.forthefirsttime首次;第一次
9.remainamystery仍是个迷
10.月球之旅payavisittothemoon
11.一种普遍为人们所接受的理论awidelyacceptedtheory
12.asaresult因此
13.breakout爆发;发生
14.haveachancetodo有机会干、、、
15.asif好像;似乎
16.dependon依赖;取决于
17.cheerup感到高兴;感到振奋
18.comeon加油;快点;得了吧
19.asfaras像、、、一样远;就、、、;据、、、
20.向某人解释某事explaintosb.sth.
21.allow…to…..允许某人干、、、
22.getcloseto靠近IV.Patterns1.as的不同用法1Wewatchedamazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.我们惊奇的看着,随着地球引力的增加,宇宙飞船的外层燃烧起火解析as引导时间状语从句2Leavingthemoon’sgravitywasnotaspainfulasleavingtheearth’s.摆脱月球引力不像摆脱地球引力那样痛苦解析as作副词和连词,引导比较状语从句3Whenwegotclosertothemoonweshallfeelitsgravitypullingusbutitwillnotbeasstrongapullastheearth’s.当我们更接近月球时,就会感觉到月球的引力在拉我们,但是月球的引力不像地球的引力那么大解析as作副词和连词,引导比较状语从句4)ButwhenItriedtostepforwardIfoundIwascarriedtwiceasfarasonearthandIfellover.而当我试着向前迈步时,我发觉我被送出去很远,步子的跨度竟然是在地球上的两倍,因而我摔倒了解析倍数的表达法as...as倍数+比较级+thanthesize/length/weight...of1Americanseat_____vegetablesperpersontodayastheydidin
1910.A.morethantwiceB.astwiceasmanyC.twiceasmanyasD.morethantwiceasmany2It’sgenerallybelievedthatteachingis_____itisascience.A.anartmuchasB.muchanartasC.asanartmuchasD.asmuchanartas3Duringthisseasonalltheanimalsaresoldat_____usual.A.twiceashigherpriceasB.astwicehighpricethanC.twiceashighaspriceasD.twicehigherpricethan
2.Itexplodedloudlywithfireandrockwhichwereintimetoproducethewatervapourcarbondioxideoxygennitrogenandothergaseswhichweretomaketheearth’satmosphere.分析
①“be+不定式”结构在此处表示注定会发生的事Hewastoregretthatdecisionfortherestofhislife.他一定会对他余生的决定后悔的
②“betodo”还可表示必须或应该Eg:Youaretoreportthistothepolice.你应该报警.
③表示计划或安排Eg:TheyaretobemarriedinJune.他们计划七月份结婚
3.Thisproducedachainreactionwhichmadeitpossibleforlifetodevelop.it在句中作made的形式宾语,真正的宾语是不定式todevelop固定模式v.+it+adj./n+todo能用于此结构的动词有makebelievethinkconsiderfeelfind等
①Hefeelsithisdutytohelpothers.他觉得帮助别人是他的责任
②HethinksitimportanttolearnEnglishwell.他认为学好英语是重要的
4.Otherscalledamphibianswereabletoliveonlandaswellasinthewater.注意called过去分词作状语aswellas链接了两个并列的介词短语onland和inthewater.HehasaflatinLondonaswellasahouseinEdinburgh.他不仅在爱丁堡有房子,在伦敦也有房子Wewatchedamazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.amazed是过去分词,在此作状语Seenfromthetopofthehillthecitylookedlikeabiggarden.从山顶望去,这个城市看上去像个大花园
5.找出文中的主语从句并背诵。