Lesson3NaturalDisasters (4).ppt

Lesson3NaturalDisasters天长市关塘中学徐桂芹、vocabularyboutnatraldissters、tsunami海啸typhoon台风volcaniceruption火山喷发洪水landslide滑坡、 山崩hurricane飓风Readaloudandmemorizethem，whatdoyouthinkcausesthedisasters，peopleornature？ (ex3p 10 ) : usethestrategiestocompletethegapsinthetext (1-5) withthesesesentences (a-g ).therearetwoextrasentencesyoudonotneed . butevidenceshowsthat 73 000 yearsagotherewasamuchgretererution.b ) eveneuropehassufferedandlargeareashavebeenunderwater.thatisprobablyntthemostimportfactory.third thethetherbitsoflandyoumighave s.ontopoftthataddglobalwarming.f ) for example，theYellowRiver，oncefamousforflooding filedtoreacheseaatallfor 226 dayin 1997.g ) oneanse Readingstrategies，readforcluesaboututissingence.(time，place，pron.linking )1. terriblefloodinginasia，b，Example，even Europeunder web Readingstrategies，readforcluesabouttsingence.(time，place，pron.linking )，2.Reducedrainfall； drier，f，theeylorlicroverfiledtoreachesea，3.Why？g、Oneansweris、Readingstrategies、readforcluesabouttonhemissingence.(time、place、pron.linking )、4.ThishasbeencausedbyCO2、e， global warming5.theworsteruption、a、amuchgreatereruption， (ex3p 10 ) : usethestregistocompletethegapsinthetext (1-5) withthessentences (a-g ).therearetwoextrasentencesyoudonotneede . butevidenceshowsthat 73 000 yearsagotherewasamuchgretererution.b ) eveneuropehassufferedandlargeareashavebeenunderwater.thatisprobablyntthemostimportfactory.third thethetherbitsoflandyoumighave s.ontopoftthataddglobalwarming.f ) for example，theYellowRiver， oncefamousforflooding fairledtoreacheseaatallfor 226 dayin 1997.g ) oneanswerisoverpopulation.keys :1.- b2.f3.-g4.-e5.-a，whatcause 、Bothpeopleandnature、1stReading、Generalideaofthetext .naturaldisassteresettingweberasecuseofumanactivities . reading strategy 2skimmingreadaparagraphwithasentencegapandidentifiythetopic，e.gdisasters . para 1: para 2: para 33343360 para 5: volcaniceruoptionearthquakeshowtheirthreadtoourworld . causesofnatraldissters-urbanizingindustralization overpopulationincitiesmakesmorepopleinthedangerofnatraldissters， expertspredictthatnaturaldisasterswillgetworse exampleshownatraldisstersbecomecommon，2 nd读取， step :扫描(ex4p 11 ) readthetextagainandandswerthesequestions .1.whatistheattitititdeofthejournlisttowardsthefuture？ pessimistic.2.whoaremostlikelytobevictimsofnaturaldisasters？ Poorpeople .3.Whyaretherenowmorehurricanes，floodsanddroughts？ overputeadindustralizations.4.whyarevolcanesandeartquakesmoredangerousnow？ abigpopulationties (or urbanization )，5.whatcouldetherbiggestthreattotheplanetinthefuture？ avolcaniceruption.6.whatefeffectsmightthisthreave？ 低模板(afreezingweather ) . homeworkoutputask1tellanaturaldisastertoyofor