高考英语unitlesson3naturaldisasters北师大版选修.ppt

Lesson3
NaturalDisastersLookatthefollowingpicturesandwhatarehappeninginthepictures?earthquakesdroughtstsunamifloodsvolcaniceruptionshurricanesforestfirestyphoonlandslidesWhatdoyouthinkcausesthedisasters,peopleornature?
3.Whyaretherenowmorehurricanes,floodsanddroughts?
Overpopulationandmismanagementoftheworld’sresources.6.Whateffectsmightthisthreathave?
Itmightplungetheplanetinto
winterforyears.Fillintheblanksaboutthetext.__addition,______changeandthespectreofglobal________causedbythemismanagementoftheworld’sresourcescanleadtothedisastersormakethemworse.
Atpresent,volcanoesandearthquakesaremore_________withthefast______ofpeople.Earthquakestakethelivesof1.6million
Peopleinthelasthundredyears.Whatisworse,thedisasterprofessionalspredictthatthethingswillget_____.LanguagePointsImportantphrasesWith的复合结构:
with+n./pron.+adj./adv./prepphrases/n/doing/done/todo
with+object+objectcomplement
With的复合结构在句子中可以做伴随状语,也可以做原因状语和后置定语e.g.Hewalkedalongwithhisheaddown/withhisfacered
Heiswaitingforyouwithamagazineinhishand.
Withyoumonitorinmyclass,Iwillbeinchargeoftheclasseasily.Withnothingtodo,Iwillgotothecinema.
Withhisworkfinished,hewentbackhome.
Helaythere,withhiseyeslookingatthesky.
Wholivesintheroomwiththelighton?(1)他站在那里,手被帮在一棵树上。
Hestoodthere,withhishandstiedtoatree.
(2)他头高昂着走了进来.
Hecameinwithhisheadhigh.wipeout:
(1)getridof/remove:清除,除去
e.g.Wipeouttheseunhappythingsbetweenyouandher.
(2)destroycompletely:毁灭,消灭
risk:vt./n.冒险
e.g.Youaretotakeriskstogetwhatyouwant,butyoumustnotriskyourlife!
atrisk
处于危险之中,作表语或者状语at/take/runtheriskof
冒……的危险
Hesavedmylifeattheriskoflosinghisown.
Theywerereadytorun/taketheriskofbeingtakenprisonerbytheenemy.riskit:冒风险试试
Idon’tdaretoriskit,it’stoodangerous.plunge:vt./vi.
投入(某物)使陷入;突入
Don’tplungeyourhandintocoldwater.
Whatplungedthecountryintothewar?resultin:haveasaconsequence
造成……的结果,导致
e.g.Itistheircarelessnessthatresulted intheaccident.
1.Afterthestormtheyhadto______.
2.Manypeopleinthedevelopingworldsufferfromdiseasesbecausetheyare______________.
3.Ourtea