1、2)能够运用that,if和whether引导的宾语从句转述信息。五、教学重难点.重点:)can,could和may,might的礼貌程度上的区别。2)宾语从句that,if/whether的构成及用法。2.难点:if或whether引导的宾语从句的语序。第二部分教学流程用时:18分钟Step1Lead-in分钟T:Hello,everyone!Gladtoseeyouagain.Todaywearegoingtolearncan,could,may,mightandtheobjectclausesintroducedbythat,if/whether.FirstletslookatGramm
2、arAandlearnhowtousecan,could,may,might.Step2GrammarAUsingcan,could,may,mightT:Nowhesaskingotherpeopleforpermission.Lookatthequestionsandpayattentiontothemodelverbsheuseswhenhewantstoaskforpermissionfromdifferentpeople.kitty,canIborrowyourdictionary?mr.Green,couldIaskyousomequestionsplease?Ex
3、cuseme,sir.mayIhavealookatthenameofyourbook?canyoutellmethedifferencesbetweenthethreesentences:-Inthe1stsentence,/Simonusescantoaskhisfriendkittyaquestionbecauseitsinformal.canisalwaysusedwithfriends.-Inthe2ndsentence,/Simonuses“couldtoaskhisteachermr.wuaquestionbecauseitsformal.“could”isalwaysusedw
4、ithteachersorotheradults.-inthe3rdsentence,/Simonuses“maytoaskastrangeraquestionbecauseitsformalandpolite.“may”isalwaysusedwithstrangersandpeopleyourespect.-Herepaymoreattentionto“might”.mightisveryformalanditsverypolitebutrarelyused.eg:mightIuseyourcomputer,mr.wu?Theyallexpresspermission.(他们都用于表示请求
5、和允许。)ok.Letsdosomeexercises.Letschecktheanswers.Dad,couldItakeyourcamera?yes,youcan.2mayIborrowthishelmet,madam?No,youmaynot.3canIborrowyourboots,mike?canyougivemetheanswerstothesequestionsaboutcan,could,may,might?can/couldyougotothezootomorrow?-wecananswer:-yes,youcan.orNo,youcannot/cant.may/mightI
6、useyourcomputer,mrwu?-wecananswer:-yes,youmay.orNo,youmaynot/cant.Herecould,mightdonotmeanthepasttense,butmeanmorepolite.Nowpleasewritesentencestoaskforpermissioninthefollowingsituations.lookatthe1stSituationIfyouareonabusandthepersoninfrontofyouhasthewindowopenandItstartstorainandyouregettingwet.Ho
7、wdoyouaskhimforpermission?-wecanask:mayIclosethewindow?Becauseitsformalandpolitetousemaywhenweaskastrangeronthebusforpermission.Lookatthe2ndSituationIfyourcousiniswatchingaboringprogrammeonTV.whatdoyousaytoaskhertochangethechannel.wecansay:-canIchangethechannel?Becauseitsinformaltousecantoaskfriends
8、forpermission.Lookatthe3rdSituationIfyouruncleandaunthaveinvitedyoutojointheminawalkintheparkandyouwanttotakeyourdogwithyou./whatdoyousaythen?-Thatsright.wecansay:couldIbringmydog?Becauseitsformaltousecouldtoaskadultsforpermission.Step3TheobjectclausesintroducedbythatLookatGrammarB.Letslearnthatclau
9、se)Earthisbecomingmoreandmorecrowdedandpolluted.whatdoesDanielthink?-DanielthinksthatEarthisbecomingmoreandmorecrowdedandpolluted.2)Peoplewillliveontheplanetmarsbytheyear2100.-Good.Danielthinksthatpeoplewillliveontheplanetmarsbytheyear2100.3)Therobotwilldomostofthework.-yes,Danielthinksthattherobotw
10、illdomostofthework.Nowcanyouputthesetwosentenceswiththat?Letsdosomeexercises.Haveyoufinished?Nowletschecktheanswers.Hellbebackinamonth.-Ihearhewillbebackinamonth.2)IhavebeentotheGreatwallonce.-HetellsmehehasbeentotheGreatwallonce.ok.canyoufindouttherulesaboutobjectclausesintroducedbythat?Tipswecanus
11、ethatclausetoreplaceanobjectaftertheverbinasentence.(我们可以用that从句来代替一个宾语连接跟在动词后面做宾语。Thewordorderintheobjectclauseisjustthesameasthatinthestatement.(从句中语序保持不变。Sometimeswecanleavetheconnective“that”outintheobjectclause.(有时连接词that也可以省略不用。Itseemsterriblyeasyforyou,right?Letsdomorepractice.canyoujointhefo
12、llowingsentenceswithobjectclausesintroducedbythat?:Z)PeoplethinkHumansonmarshavetowearspecialbootstomakethemselvesheavier.-Peoplethinkthathumansonmarshavetowearspecialbootstomakethemselvesheavier.2)SomescientistsdontbelieveThejourneytomarswillbeverycomfortable.-Somescientistsdontbelievethatthejourne
13、ytomarswillbeverycomfortable.canyoufindouttheobjectclausesinthefollowingsentences.writean“o“foranobjectclauseandan“N”forasentencewithoutone.:)Theseplantswillproducefoodandoxygenthatweneed.2)Scientistsshouldbeabletodevelopplantsthatgrowonmars.3)Peoplethinkthathumansonmarshavetowearspecialbootstomakethemselvesheavier.4)weallknowthatmarsisaplanetinthesolarsystem.5)Thejou
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