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Unit8NaturaldisastersRevisionReadthewordsonthewordlistonP130-1311.thousandsof数千个…;成千上万的…hundredsofmillionsofonehundredtwohundred我们学校有三千三百名学生。Thereare__________________________studentsinourschoolthreethousandthreehundred数千人在那场地震中丧生。____________people_____________inthatearthquake.ThousandsoflosttheirlivesWords3.catchfire着火beonfire着火（强调状态）start/causeafire起火雷电击中房屋并引起大火。Lightning_____ahouseandit__________.hitcaughtfire看，那栋房子着火了。Look!Thehouse________.isonfireLightning_____ahouseandit__________.hitcaughtfire3.shaken.&vi.;vt.摇晃，摇动shakingn.摇晃，摇动我感觉到一阵轻微的震动。Ifeltaslight_____.shakeshakingFinally,thenoiseand_______ended.最终，声音和震动都停了下来。n.大地开始震动。Theearthstartedto_____.shakevi.两个朋友在大街上相互握手。Twofriends______handswitheachotherinthestreet.shakevt.4.mindn.[C]头脑；思想vt.介意你有聪明的大脑。Youhaveagood______.mindDoyou______ifIaskyouonemorething?您不介意我再问您一个问题吧？mind5.aliveadj.活着的livevi.活着，生活，居住通常不放在名词前作定语(可作表语或后置定语)：Shemustbestill______.她一定还活着。alivelivingadj.活着的Thisisa_____fish.=Thisisafish______.这是一条活鱼。livingalive6.asleepadj.睡着的sleepv.睡觉sleepyadj.昏昏欲睡的，困乏的fallasleep入睡My4-year-olddaughterwas_______onthesofa.我4岁的女儿在沙发上睡着了。asleepIbegantofeel_______.我开始感到困倦。sleepy7.becauseof…因为+名词、代词等because因为+从句因为大雨，所以他来不了了。Hecan’tcome__________itisrainingheavily.Hecan’tcome__________theheavyrain.他没来上学是因为他生病了。Heisn’tatschool__________hisillness.Heisn’tatschool__________heisill.becausebecauseofbecauseofbecause8.burnn.烧伤，烫伤v.(使)燃烧burntburnedburningadj.燃烧的做饭时要当心，否则你会烧伤你自己的。Becarefulwhenyoucook,oryoumay______yourself.burn他们飞快地跑出了着火的房子。Theyranquicklyoutofthe_________house.burning9.weekdayn.工作日weekendn.周末在周末at/ontheweekend;at/onweekends在工作日onweekdays10.clearvt.清除，清理adj.清晰的，清澈的，清楚的clearlyadv.明亮地;明确地;cleanvt.打扫，使…干净adj.干净的;整齐的请把黑板擦干净。Please_____theblackboard.clean人们正忙着清理街道上的积雪呢。Peoplearebusy________thesnowfromthestreet.clearingCanyouseethewords_______?(clear)clearly你能看得清这些单词吗？Phrases1.把…拖干净（代词放中间）mop…up把它/它们拖干净mopit/themup把水拖干mopthewaterup=mopupthewater2.将…冲走（代词放中间）wash…away将它/它们冲走washit/themaway冲走村庄washawaythevillage=washthevillageaway3.输掉比赛losethegame输掉决赛losethefinal4.一场事故anaccident一起车祸acaraccident一起交通事故atrafficaccident5.从树上跌落falloffthetreefallfromthetree摔倒fallover6.伴有雷声和闪电的一场大风暴aheavystormwiththunderandlightning7.在凌晨intheearlymorning在傍晚inthelateafternoon8.恐惧地尖叫screaminfear害怕地互相看着lookateachotherinfear惊恐地（处于恐惧之中）infear9.朝四面八方跑去runinalldirections=runineverydirection10.保持…安全免受….keep…safefrom…保持自己免受火灾keepourselvessafefromfires保护…不受…之害protect…from…保护你自己免受烟的伤害protectyourselffromsmokeSentences1.开始下雨时我正在睡觉。I____________whenitstartedtorain.wassleepingLightning_____aclassroombuildingandit___________.2.闪电击中教学楼并着火了。hitcaughtfire3.用一个湿毛巾捂住嘴巴和鼻子以防浓烟。_______yourmouthandnosewithawettowelto_________yourself______thicksmoke.4.不要回到（进入）着火的大楼。Never_____________thebuilding_______.Coverprotectfromgobackintoonfire5.当我们烧伤自己时，你知道我们先做什么？Doyouknowwhat_______firstwhenweburnourselves?todo基本用法过去进行时1.表示在过去某个时间点正在发生的动作.常与attenlastnight,atthistimeyesterday,atthattime/moment,whenIcamein等连用.2.表示在过去某段时间之内持续不断发生的动作.常与lastnight,thismorning,from…to(from7to10thismorning)连用.Hewrotealetteryesterdaymorning.Hewaswritingaletteryesterdaymorning.区别:昨天上午他写了一封信.昨天上午他一直写信.（1）肯定句：was/were+v-ing（2）否定式：was/werenot+v-ingwasnot=wasn’twerenot=weren’t（3）疑问句：将was/were调到主语前过去进行时的句式Pastcontinuoustensewith‘while’,‘when’and‘as’1.when,while和as这三个词都有“当……时候”的意思。2.when和as既可以指某一点时间，也可以指某一段时间，其从句谓语动词表示的动作既可以是瞬间性的，也可以是延续性的；while指一段时间，从句中的谓语动词必须是延续性的。即：指一段时间时when,while和as都可用；指一点时间时，只能用when，不能用while。3.当while,when和as放在句首时，两个句子应用逗号隔开。1.两个延续性动作同时在过去发生时，用过去进行时,用while连接。Iwasdoingmyhomework_______mymotherwascookinglastnight.(when,while)while延续性动词，即可以持续很长时间的动词，如：enjoy,watch,read,play,stay,run等．2.延续性动词用过去进行时，短暂性动词用一般过去时.when+短暂性动词while+延续性动词TheearthquakestartedwhileIwasdoingsomeshopping.IwastryingtofindmywayoutwhenIsuddenlyheardsomenoiseaboveme.巩固练习(用when/while填空）1.Mywalletdroppedontheground_________Iwasrunning.2.__________Ijustwenttobed,therewasaloudknockonthedoor.3.__________hewasreading,anearthquakestarted.4.Werethestudentslisteningtotheteachercarefully__________theteacherwasgivingalesson?5.__________thetelephonerang,Ibecamenervous.whileWhenWhilewhileWhen1.---Whatwereyoudoingthistimeyesterday?---I____onthegrassanddrawingapicture.A.sitB.satC.amsittingD.wassitting2.WhenIcamebackyesterdayevening,mybrother_____hishomework.A.isdoingB.hasdoneC.wasdoingI.Multiplechoice.3.---Icalledyouat4:00yesterdayafternoon,butnooneanswered.---Sorry,I_____withmyfriendsatthattime.A.swimB.swamC.willswimD.wasswimming4.---Amy,Icalledyouyesterdayevening,butnobodyansweredthephone.---Oh,I__awalkwithmymotheratthattime.A.takeB.tookC.amtakingD.wastaking5.He_____whentheUFOarrived.Hedidn’twakeuntiltheUFOdisappeared.A.sleptB.wassleepingC.wasdoinghomeworkD.wassingingII.Fillintheblanks.•People___________(run)wildlywhilepiecesofbricks____________(fall)down.•Weshouldpreventhuntersform___________(catch)wildanimals.•Ourmathsteacherwarnedus__________(notcopy)other’sanswers.•Thetemperature_______(drop)alottoday.wererunningwerefallingcatchingnottocopydrops