最新新人教版选修8-unit5-重点单词和短语教学讲义PPT.ppt

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1、新人教版选修8-unit5-重点单词和短语1.alternative①adj.供选择的；其他的e.g.Thewaywasblocked,sowehadtogobyalternativeroad.②n.[C]二选其一；可供选择的东西；替代物1）analternativeto...…的替代品2）havenoalternativebuttodosth.别无选择只好做……3）Thereisnoalternativebuttodo...别无选择havenochoicebuttodosth.=havenothingtodobutdo…拓展：除了放弃

2、那个计划，我别无选择。Ihavenoalternativebuttogiveuptheplan.=Ihavenochoicebuttogiveuptheplan.=Ihavenothingtodobutgiveuptheplan.1)Wehave___________________________________.除了继续下去，我们没有选择的余地。2)Thereis______________________________.除了战斗，没有其他的办法。noalternativebuttogoonnoalternativebuttofi

3、ght辨析：interrupt与disturbinterrupt强调“打断，使……不能继续”。disturb强调“打扰，打搅”，有“使……心烦，使……不安”之意。[活学活用]对比填空(1)Heissleeping.Donot________him.(2)It'simpoliteto________others.disturbinterrupt拓展：Interruptionn.中断，打断withoutinterruption不间断地即学即用（1）电话铃声打断了他的谈话。（2）如果你起得早，尽量不要打扰别人。Hewasinterrupted

4、bytheringingofthetelephone.Ifyougetupearly,trynottodisturbeveryoneelse.3.assumevt.假定，设想；承担(1)assumesb./sth.tobe假定/假设某人/某事为…(2)Itisassumedthat...被认为Ihadassumedhimtobeaprofessor.Itisgenerallyassumedthatstressiscausedbytoomuchwork.(3)assumesth.假装,设想承担Heassumedagreatman.Don’

5、talwaysassumetheworstIassumedtheresponsibility.(4)assumethat－clause认为……Thescientistsassumethatthereisnoanimalsonthemoon.(5)assuming(that)...＝suppose/supposingthat假设……e.g.Assumingitrainstomorrow,whatshallwedo?(6)assumptionn.假定，假设makeanassumption认为，假定ontheassumptionthat假定[

6、即学即练](1)You__________hisinnocencebeforehearingtheevidenceagainsthim.＝You__________him____________innocentbeforehearingtheevidenceagainsthim.＝You____________heisinnocentbeforehearingtheevidenceagainsthim.在听到对他不利的证言前，你假定他是无罪的。assumeassumetobeassumethat即学即用（1）(假定他还活着)，howol

7、dwouldhebenow?（2）(我们假定)foramomentthattheplansucceeds.（3）Hisactionswerebasedon(一个错误的设想).Assumingthathe’sstillaliveLetusassumeafalseassumption4.regardlessof不管；不顾；不注意①regardless:adv.Weobjectedtotheplan,buttheycarrieditoutregardless.②Ishallgoregardlessoftheweather.Heisregard

8、lessofhisappearance.拓展：regardlessofinspiteofdespite不顾…无论…提示：regardlessof,inspiteof和despite后面不能直接跟从句，只能跟