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高中英语课件（madeofdingshangtuwen）SectionⅢUsingLanguageAstherocketroseintotheair,wewerepushedbackintoourseatsbecauseweweretryingtoescapethepulloftheearth'sgravity.随着火箭徐徐升空，我们被向后推在座位上，因为我们正试图摆脱地球引力。1．pulln．&vt.拉(力)；拖；牵引力典例Themoon'spullaffectsthetidesontheearth.月球的引力影响地球上的潮汐。Shepulledasidethewindowcurtains.她把窗帘拉到一旁。拓展pullout(火车从车站)开出，离站pullin/into(火车)到站，进站运用完成句子①Afterbeingwaitedforhalfanhour,thetrainmyparentswereon________________(进站)．②Ashehopelesslywatched,thetrainwas____________(离站)．pullingoutpulledinIcheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.我立刻感到很高兴，由于失重我在太空舱里飘来飘去，我望着(身后的)地球越来越小，而(前方的)月球越来越大。2．cheerup感到高兴；感到振奋；欢呼；喝彩典例Thenewscheeredhimup.这消息使他感到高兴。拓展cheersb.up使某人高兴起来；使某人振奋起来cheeronsb.鼓励某人；给某人加油运用完成句子①Thefans________________(感到兴奋)whentheysawtheirfavoritestar.②Samisinalossbecauseofhavingfailedinthedrivingtest.Let's________________(使他振作起来)．cheerhimupcheeredup“Ohdear，”Icried,“walkingdoesneedabitofpracticenowthatgravityhaschanged.”“天哪，”我大声说，“重力改变了，看来走路也的确需要练一练了。”3．nowthat既然；由于典例Nowthatyouarebusy,letmedoitforyou.既然你很忙，就让我替你做吧。辨析nowthat/because/as/since/for(1)nowthat和since都可意为“既然”，其用法基本相同，它们的语气较弱，常把对方陈述的事实作为理由。(2)because语气最强，表示客观的因果关系，常用来回答why的提问。(3)as语气较弱，所表示的原因已为人们所知，或不如句子的其他部分重要。as引导的从句一般放在句首。(4)for的语气最弱，它不表示原因，只是对某一事实进行解释说明，常放于主句之后，前面用逗号隔开。运用用上面所提供的辨析词填空①________________everyoneishere,nowlet'sbegin.②Hefeltnofear,________hewasabraveman.③Hehadtostayathomeyesterday________hewasill.④________youaretired,you'dbetterhavearest.Nowthat/SinceforbecauseAsWewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth'sgravityincreased.我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。4．breakout突发；爆发典例TheAnti-JapaneseWarbrokeoutin1937.抗日战争爆发于1937年。拓展breakin打断；闯入breakinto闯入；破门而入；突然……起来breakawayfrom脱离；挣脱；放弃breakup驱散；拆散breakthrough突破breakdown(机器、车辆等)坏了；失败；摧毁⑤Wearesorrytoarrivelate,butthecar________________.⑥Thepolice________________thecrowdandeverythingbecamequietagain.运用用break构成的短语的适当形式填空①Oursoldierssuccessfully________________theenemy'sdefenses.brokeawayfrombrokeout②Thedog________________itsownerandranaway.③Morethanonehundredfires________________inourcitylastyear.④Hearingthesadnews,theoldwoman________________tears.brokeupbrokethroughbrokeintobrokedown1．ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.而当我试着向前迈步时，我发觉我被送出很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。点拨“twiceasfaras”意为“是……的两倍”，其结构为：A＋be/do＋倍数＋as＋形容词/副词原级＋as＋B，表示“A是B的多少倍”。拓展倍数的其他表达形式：(1)A＋be/do＋倍数＋形容词/副词的比较级＋than＋B(2)A＋be＋倍数＋thesize/height/length/width＋of＋B(3)A＋be＋倍数＋what从句如：AsiaisfourtimesaslargeasEurope.＝ThesizeofAsiaisfourtimesthatofEurope.＝AsiaisfourtimesthesizeofEurope.＝AsiaisthreetimeslargerthanEurope.亚洲面积是欧洲的四倍(比欧洲大三倍)。Theproductionnowisthreetimeswhatitwastenyearsago.现在的产量是十年前的三倍。运用完成句子①Thecarruns____________________(快两倍)thattruck.②Thisstreetis____________________(四倍长)ofthatone.③Thistreeis_____________________(三倍高)thatone.threetimesastallastwicefasterthanfourtimesthelength2．Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth'sgravityincreased.我们惊奇地看着，随着地球引力的增加，宇宙飞船的外层燃烧起火。点拨在本句中，amazed是过去分词作伴随状语。与现在分词作伴随状语不同，过去分词作状语表示分词动作与逻辑主语构成动宾关系或动作已完成，而现在分词作状语表示分词动作与逻辑主语是主动关系或动作正在进行。如：AuntWucamein,followedbyherdaughter.吴阿姨走进来，(她)后面跟着她的女儿。Hesatbytheroadside,begging.他坐在路边乞讨。运用完成句子①“Wecan'tgooutinthisweather，”Bensaid,__________(向外看)ofthewindow.lookingout②Hestaredattheaccidentscene,______________________(被震惊)thetragedy.shocked/astonishedbyWhenwegetclosertothemoon,weshallfeelitsgravitypullingus,butitwillnotbeasstrongapullastheearth's.当我们更接近月球时，就会感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。结构notas/so...as...不如/不像……仿写完成句子①Thiswashingmachineis___________________________(不如你想象的那样有用)．②Heis________________________(没有看上去那么老)．③Frankly,Jackis_________________________(不像……那么可靠的一个人)hisbrother.notas/sooldashelooksnotas/soreliableamanasnotas/sousefulasyouthink