高中英语Module4 Sandstorms in Asia课件外研版必修3.ppt

module4sandstormsinasia 高一孙海涛 pre reading hatishappening sandstorm thickwind blow desertification whatarethecyclistsandthewalkerswearingandwhy masks glasses hoods 风帽 whatdoyouthinkhappentotrafficinthissituation why peopledriveslowly becauseitisnotcleartoseeeverything fastreading 1 whataresandstorms 2 wheredosandstormsoccuroften 3 whyhavesandstormsincreasedinchina 4 whoappearinthistext 5 whensandstormshappen whattheweatherlooklike 6 howcanthesandstormsbeprevented sandstormsarestrong drywindsthatcarrysand centralasia northamerica centralafricaandaustralia sandstormsappeartohaveincreasedinrecentyearsasaresultofdesertification renjianboandhuangxiaomei wewillseeanorangeskyandstrongwindsthatcoverthecityinathick brown yellowdust amasscampaignhasbeenstartedtohelpsolveitandthegovernmentisplantingtrees carefulreading sandstormsbeginin sandstorms haveincreased desertification whichhappenswhenlandbecomesdesert climatechangesandbecausepeople treesand grass renjianbodescribeda sandstormhe itwasthemost andthemost situation huangxiaomweisays inasandstormis itisdifficultto inthestrongwind citizens toan skyandstrongwindsthat thecityina dust inthatsituation traffic becausethethickdust tosee weatherexperts people gooutwhenasandstormarrives ifyouwanttogoout you amask scientisthave to theproblemanda hasbeenstarted to it nearer thegovernmentisplantingtreesandplansto plantingforthenextfiveyears desert areas appear to as a result of because of cut down dig up terrible experienced frightening dangerous to be cycling frightening breathe wake up orange cover thick brown yellow moves very slowly makes it difficult advise not to would better wear tried many ways solve mass campaign prevent coming continue languagepoints massadj 大规模的n 团 块 堆amassof massesof许多 大量themasses amasscampaign amassofclouds hotair 群众 大型战役 一团云 一团热气 2 becaughtin被困于 碰到 hewaslateforworkyesterdayafternoonbecausehewascaughtinthetrafficjam hewasoncecaughtinasnowstormforseveraldays 因为交通堵塞 他昨天下午上班迟到了 他曾经在暴风雪中困了好几天 3 appearv 1 出现 出版 发行 hisbookwillappearinthebookshopnextweek asmileappearedonhisfacewhenheheardthegoodnews 2 看起来 似乎 系动词 sheappearedverytired sheappearstowanttoleave 他的书下星期在书店发行 当他听到这个好消息 脸上露出了笑脸 她看起来很累 她似乎想离开 note keepsb fromdoing中from不可以省略 因为keepsb doing意为 让某人一直做某事 其他两个词组中from省略后意思不变 i msorrytokeepyouwaitingsolong wemustkeephimfromcomplainingallday 很抱歉让你等这么久 我们必须阻止他整天抱怨 iwilldivideyouintotwogroups iwillchooseonedirectorfromeachgroup thedirectorchoosesajournalist anexpertinweather anofficialinthegovernment renjianbo huangxiaomeiandacitizeninthesandstormfromyou