Unit3EnvironmentalProtectionDiscoverUsefulStructures课件高二英语人教版选择性

DiscoveringUsefulStructuresGrammar——

1.Workingroups.Lookatthesentencesinbothcolumnsdiscussthedifferencesbetweeneachpair.Summarizetherulesforchangingdirectspeechintoindirectspeech.DirectSpeechIndirectSpeechObserve&compare

IndirectSpeech1.Theexpertsaidthatfromthepositionofdeadbody,thebearappearedtohavestarvedanddied.2.Thereporteraskedwhetherpolarbearswoulddieoutbecauseofclimatechange.3.Thereporteraskedhowwecouldsavepolarbearsfromextinction.4.Theexpertadvisedusto

worktogetherto

stopclimatechange.DirectSpeech1.Theexpertsaid,“fromthepositionofitsdeadbody,thebearappearstohavestarvedanddied."2.Thereporterasked,“willpolarbearsdieoutbecauseofclimatechange?"3.Thereporterasked，“How

canwesavepolarbearsfromextinction?"4.

Let’sworktogethertostopclimatechange,"theexpertsaid.Observe&compare1.Dianeasked,“WhatmadeHurricaneKatrinaunusual?”2.Dianeasked,“WasittheworstnaturaldisasterinAmericanhistory?”3.Marthasaid,“Iwanttobecomeascientistandhelptheworld.”DianeaskedwhathadmadeHurricaneKatrinaunusual.Dianeasked(me)if/whetherithadbeentheworstnaturaldisasterinAmericanhistory.Marthasaid/toldtme(that)shewantedtobecomebecomeascientistandhelptheworld.4.Marthasaid,“Iamdoingaprojectonbehalfofmyschoolaboutglobalwarming.”5.Bobasked,“Whyisnuclearpowerasensitivetopic?”6.Bobasked,“Couldyouexplainhowthenucleardisasterhappened?”Marthasaid/toldme(that)shewasdoingaproject.onbehalfofherschoolaboutglobalwarming.Bobaskedwhynuclearpowerwasasensitivetopic.Bobasked(me)if/whetherIcouldexplainhowthenucleardisasterhadhappened.7.Lauraasked,“Howmanyanimalshavedisappearedbecauseofhumanhunting?”8.Lauraasked,“Whatcanwedotohelpwildanimals?”9.Vincentsaid,“IhaveneverbeentotheAmazonJungle.”10.Vincentsaid,“Willscientistsdiscovernewspeciesthere?”Bobasked(me)if/whethertheycouldexplainhowthenucleardisasterhadhappened.Lauraaskedwhatwecoulddotohelpwildanimals.Vincentsaid/toldmethathehadneverbeentotheAmazonJungle.Vincentsaidif/whetherscientistswoulddiscovernewspeciesthere.I.语序变化：1.直接引语为陈述句：变为______引导的宾语从句2.直接引语为一般疑问句：变为_________引导的宾语从句3.直接引语为特殊疑问句：变为___________引导的宾语从句4.直接引语为一般疑问句或特殊疑问句变为间接引语时要用：__________语序5.特殊句子不变语序的有_______________thatwhether原来的特殊疑问词主谓/陈述what'swrong?what'sthematter?What'shappening?whathappenedtoyou?II.时态变化

1.如果主句的谓语动词是一般现在时或将来时，间接引语时态________。2.如果直接引语的内容是客观事实或真理时，间接引语时态________。3.如果主句的谓语动词是一般过去时，直接引语变为间接引语时，从句的谓语动词在时态方面要做相应的变化。不变不变直接引语间接引语一般现在时一般将来时现在进行时

现在完成时一般过去时一般过去时

过去将来时过去进行时

过去完成时过去完成时3.人称变化

一随主、二随宾、第三人称不更新。

变化项目直接引语间接引语指示代词thisthese时间状语nowtodaythisweek/month…thatthosethenthatdaythatweek/month…4.指示代词/时间状语/地点状语等的变化yesterdaytendays/weeks…agotomorrow/nextyear..

地点状语here方向性动词comebringthedaybe