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12Unit2Stayawayfromwindowsandheavyfurniture.must,can,may表示“推测”顺口溜：can不肯，may不问，must肯定不否问。can不肯，即：can(could)一般不用于肯定句；may不问，即：may(might)一般不用于疑问句；must肯定不否问，即：must一般仅用于肯定句，不用于否定句和疑问句。1、表示有把握的推测时，肯定句用must(一定，准是)，否定句用can’t(不可能，一定不)。must(can’t)+动词原形，表示对现在情况的推测。must(can’t)+bedoing,表示对现在正在进行的情况的推测。must(can’t)+havedone，表示对过去情况的推测。如：Youmustbehungryafteralongwalk.长途步行之后你一定饿了。Theymustbewaitingforus.Let’shurryup.他们一定在等我们。让我们快点走吧。Youmusthaveleftyourbaginthetheatre.你准是把你的包丢在剧院了。Youcan’tbehungry,youhavejusthadyourdinner.你现在不可能觉得饿，你刚吃过饭。Hewearsglassesallthetime,hiseyesightcan’tbegettingbetter.他一直带着眼镜，他的视力不可能在好转。2、表示把握不大的推测即可能性时，用can和may，常译为“也许，可能”。may用于肯定句与否定句，一般不用于疑问句。can常用于疑问句，一般不用于肯定句。如：Thenewsmayormaynotbetrue.这消息也许是真的，也许不是真的。Atthemomentshemaybeplayingwithherclassmates.此刻她可能正在和同学们玩。AnnamightnothaveseenTomyesterday.安哪昨天可能没有看见汤姆。WherecanWeiFangbe?魏芳会在哪里呢？Whatcantheybequarrellingabout?他们可能在争吵些什么呢？Canshehavelostthebook?她可能已把那本书丢了？Fillintheblanksusingmust/can/might.1.–CouldIborrowyourdictionary?–Yes,ofcourseyou________.2.Shedoesn’tanswerthebell.She______beasleep.3.Thegroundiswet.It______haverainedlastnight.4.Heiswritingwithapencil.He______havelosthispen.5.Acomputercan’tthinkforitself,it______betoldwhattodo.canmustmustmightmustEarthquakeRemember:Thesethingshouldbeavoided:1.standingclosetoabuilding2.standingunderatree(becausebuildingsandtreesmayfallonyou)3.goingtooclosetopowerlines(becauseyoumaybebadlyaffectedbyelectricityiftheyfallonyou)1.keyvocabulary:earthquake,warm,inside,under,window,keep,clear,calm,brave2.keystructures:keepcalm,especiallywhenyouarewithotherpeople.Inshort,followwhatyoulearninschool.youcanbesafeandyoucanalsohelpothers.3.Tounderstandthepassageonsafetyandfirstaidinaearthquake.Teachingaims/'ɜ:θ:keIk//wɔ:n//'In:saId//'ʌndə//ki:p/地震n.earthquakewarn警告；告诫v.inside在里面；向室内adv.在......里面prep.里面的；内部的adj.keep在......正下方；prep.在......下面under保持；留在v.Wordsandexpressions/'wIndəʊ//klIə/keepclearof/kɑ:m//breIv//'helpfl//'paʊə/不和......接触镇静的；沉着的adj.brave勇敢的；无畏的adj.power有用的；提供帮助的adj.calm电；电力n.helpful.windowclear不和......接触的；不挨......太近的adj.清除；清理；移走v.窗；窗户n1Workinpairs.Lookatthepicturesandaskandanswerthequestions.1Wherearethepeople?2Whataretheydoing?Why?hidingunderatableInsidetheroomOutsidethebuildingMovingawayfrombuildingInthebusStayinginthebusInthebuildingLeavingthebuildingbutdon’tusethelift.2.Lookatthetitleofthepassageandthinkaboutwhattodointheearthquake.Stayawayfromwindowsandheavyfurniture.What’selse?Donotjumpoutofhighbuildings.Hideunderatable!Leavethebuildingbutdon’tusethelift!And…WhattodoinanearthquakeEarthquakesalwayshappensuddenly,soitisdifficulttowarnpeopleaboutthem.Usuallypeoplehavelittleornoideaaboutwhattododuringanearthquake,sohereissomeadvice:Inside1Donotjumpoutofhighbuildings.2Hideunderatable.Stayawayfromwindowsandheavyfurniture.Keepclearoffire.3Leavethebuildingquicklywhenthegroundstopsshaking,butdonotusethelift.3ReadthepassageandcheckyouranswertoActivity2.keepclearofsth.清除；摆脱；没有；不接触4Keepcalm,especiallywhenyouarewithotherpeople.Bebraveandbehelpful.Outside1Moveawayfrombuildings,becausepartsofabuildingmayfallonyou.2Donotstandnearstreetlightsorunderpowerlines.3Stayawayfrombridgesandtrees.Ifyouareinabusoracar,stayinit.4Inthemountains,becarefuloffallingrocks.5Onabeach,runawayfromtheseaandmorequicklytohigherground.Inshort,followwhatyoulearntinschool.Youcanbesafeandyoucanalsohelpsaveothers.4Readthesentences.Decideifthefollowingactionsareright(√)orwrong(×).Whentheearthquakestarted…1…Ihidunderatable.2…Samsatonhisdesk.3…Aliceranoutofthebuilding.4…PeterandHelenstayedintheircar.5…myfamilyandImovedawayfromthebeach.√××√√5Answerthequestions.Usethewordsandexpressionsinthebox.braveinsidekeepcalmpowerlinesstreetlightswarn1Whatisdifficulttodobeforeanearthquake?2Whereshouldyoustaybeforethegroundstopsshaking?3Whatshouldyoudowhenyouarewithotherpeople?4Whatshouldn’tyoustandnearorunderinthestreet?1Whatisdifficulttodobeforeanearthquake?2Whereshouldyoustaybeforethegroundstopsshaking?3Whatshouldyoudowhenyouarewithotherpeople?4Whatshouldn’tyoustandnearorunderinthestreet?It’sdifficulttowarnpeoplebeforeanearthquakeWeshouldstayinside.Weshouldkeepcalmandbebrave.Weshouldn’tstandnearpowerlinesorunderstreetlightsinthestreet.Languagepoints1.Earthquakesalwayshappensuddenly,soitisdifficulttowarnpeopleaboutthem.地震总是发生得很突然，所以很难给予人们预警。句中的them指的是earthquakes。warnsb.aboutsth.意为“提醒/警告某人注意某事”。如：Iwasgoingforaswiminthesea.Thepeopleinthehotelwarnedmeabouttheweather.我要去海里游泳，宾馆里的人提醒我要注意天气。2.Keepcalm,especiallywhenyouarewithotherpeople.保持镇静，尤其是当身边还有其他人的时候。keepcalm是系动词+形容词构成的动词短语。其他的行为动词还能作系动词的有:become,feel,look,seem等。如：Everybodybecamequiet.所有人都安静下来了。Helookedalittlenervous.他看上去有点儿紧张.3.Inshort,followwhatyoulearntinschool.总之，按照在学校所学到的（地震）知识去做。inshort的意思是“总之，简言之”。如：Inshort,Iaminterestedinallofthesports.总之，我对一切运动都感兴趣。Thisbookis,inshort,anexcitingstoryaboutadventures.简言之，这本书描述的是一个惊心动魄的探险故事。6Workinpairs.Dothefollowingresearch.Insideyourschool•Makealistofsafeplacesanddangerousplacesatyourschoolifanearthquakehappens.•Notewheretheneareststairsanddoorstotheoutsideoftheschoolbuildingsar