外研版必修三模块四sandstorms-in-Asia.ppt(1).ppt

外研版必修三模块四sandstorms-in-Asia.ppt(1).ppt

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Book3Module41._（沙尘暴沙尘暴）havebeenamajordisasterformanyAsiancountriesforcenturies.2.Amass_（运动运动）hasbeenstartedtosolvetheproblem.3.Sandstormsarestrongenoughtomovesand_（沙丘沙丘）.5.Thetrafficmovesslowlybecausethethick_（尘尘土土）makesitdifficulttosee.6.TheChineseCentralWeatherStationcan_（预预报报）asandstormsomeweeksbeforeitarrivesinBeijing.7.Ifyouwanttogoout,youdbetterweara_（面面具具）.8.The_（力量力量）ofthestormsometimessurprisespeople.SandstormscampaigndunesdustforecastmaskstrengthWordsrevisionPleaselookatthesepictures.Howbeautifultheyare!

Butonedaysomethinghappened.Whatisthisnaturaldisaster?

Itisasandstorm.Lookatthepicturebelowanddescribethefollowingwords.blowburyfrighteninglast（v）sandstormTherehasbeena_.It__fortenhoursandwasvery_.Thewind_thesandhigharoundthehouses,andsomecarswerealmostcompletely_bythesand.sandstormlasted/hasbeenblowingfrighteningwasblowingburiedhasblowburyfrighteninglast（v）sandstormCheckthemeaningofthesewordsanddiscusswhichstatementsaretrue.digearthquakeprotectsignthePacificOcean1Sandstormsbeginindesertareas.2Desertsarecreatedbyclimatechanges.3Desertsarealsocreatedbecausepeoplecutdowntreesanddigupgrass.4SandstormsfromAsiahaveblownacrossthePacificOceantoAmerica.5Sandstormscantbeprevented.6Theinlandregionhasmoresandstormsthantheonenearthesea.NorthwesternChina___strongwindsandsandstormssinceMonday.Theconditionis_to_ascoldairismovingsouthward.TheXinjiangvigorAutonomousRegionhasalreadybeen_.WeatherauthoritiessayInnerMongolia,NingxiaandtheprovincesofGansu,ShanxiandShanxiwillseerainand_dropsoftemperature.NorthernChinamanyhavesandstormsagain.hasbeenexperiencingexpectedspreadaffectedsharpAasksandBanswersaccordingtothephoto1whatishappening?

2whatisthecyclistwearingandwhy?

3whatdoyouthinkhappenstotrafficinthissituation?

Why?

4WhatdoyouthinkexpertsadvisepeopletodointhissituationThereisasandstormblowing.Theyrewearingmasksandglassestoprotectthemselves.Itmovesveryslowly.Becauseitisnotcleartoseeeverythingontheroadandpeoplemusttakegreatcare.Stayathome.Skimming（略读）方法指导方法指导1.1.浏览标题浏览标题2.2.读首段，抓中心。

读首段，抓中心。

3.3.浏览其他段首末句。

浏览其他段首末句。

4.4.最后读结尾段。

最后读结尾段。

Fast-readingReadfastandtrytofindthemainideaofeachparagraphFastReadingthisarticlecanbedividedintothreeparts,givethemainideaofeachpart?

PartIPartIIPart（para1）（para2-5）（para6）Sandstormisa_inAsiathe_descriptioncauseseffectssuggestionofsandstormmajordisasterMeasurestopreventsandstorm:

_plantingtreesintroductionSandstormsarestrong,dry_carrying_,a__inAsiaMainplacesCauseInfluenceSuggestionMeasuresDesertification：

_changes；_trees；_grassan_sky,strong_,cityinathick,brown-yellow_moveslowly,difficulttoseeandbreatheadvisenottogoout,wearamaskorangewindsclimatecutdowndigupdustFillintheformwiththedetailandmakeupapassgae.DetailedreadingmajordisasterCentralAsia,CentralAfrica,NorthAmerica,Australiaplantmoretrees12sandwindsPara1.1.尝试许多方式来解决这个问题尝试许多方式来解决这个问题2.几个世纪以来几个世纪以来3.一个大规模的运一个大规模的运动动Para2.1.还是个孩子的时候还是个孩子的时候=whenhewasachild2.被困在被困在中，突然遭遇中，突然遭遇Para3.1.似乎已经做了似乎已经做了2.由于由于-的结的结果果3.砍倒树木砍倒树木4.挖出，挖掘挖出，挖掘草坪草坪Para4.醒来看到橘色的天空醒来看到橘色的天空使得看到很使得看到很难难Para5.到达到达使人惊奇使人惊奇建议某人不要做某事建议某人不要做某事带着面具带着面具Para6.组织组织做某事做某事PhrasesPara1.trymanywaystosolvethisproblemsforcenturiesamasscampaignPara2.asachildbecaughtinPara3.appeartohavedoneasaresultofcutdowntreesdigupgrassPara4.wakeuptoanorangeskymakeitdifficulttoseePara5.arrivein/atsurprisepeopleadvisesb.nottodosthwearamaskPara6.prevent（from）doing,stop（from）doing,keepfromdoingThefourmainplacesintheworld（wheretherearesandstorms）areCentralAsia,NorthAmerica,括号中的句子是什么从句？

括号中的句子是什么从句？

（）A.地点状语从句地点状语从句B.定语从句定语从句C.宾语从句宾语从句D.主语从句主语从句BPara.1and2CentralAfricaandAustraliaSentences1.Theyareoftensothickthatyoucannotseethesun,andthewindissometimesstrongenoughtomovesanddunes.para2沙尘暴能见度经常很低以至于看不见太阳，沙尘暴能见度经常很低以至于看不见太阳，风有时大的能够移动沙丘风有时大的能够移动沙丘.so-that-引导结果状语从句引导结果状语从句2.RenJianbo,describedaterriblesandstorm（that）heexperiencedasachildinthedesert.“Tohavebeencaughtinasandstormwasaterribleexperience.”para2任建波描述了他小时候在沙漠中经历的一次任建波描述了他小时候在沙漠中经历的一次沙尘暴，沙尘暴，“那次被围困在沙尘暴中的经历那次被围困在沙尘暴中的经历真是太可怕了真是太可怕了.”3.Itwasthemostfrighteningandthemost（para2）dangeroussituation（that）Ihaveeverbeenin.这是我经历过的最可怕最危险的情形这是我经历过的最可怕最危险的情形.4.Thisisaprocessthathappens（whenlandbecomesdesertbecauseofclimatechangesandbecausepeoplecutdowntreesanddigupgrass.）para3这一进程是在气候变化以及人们肆意砍伐这一进程是在气候变化以及人们肆意砍伐森林和破会草皮从而导致土地沙漠化的情森林和破会草皮从而导致土地沙漠化的情况下发生的况下发生的.“trafficmovesveryslowlybecausethethickdustmakesitdifficulttosee.”Para.4“traffic”means_A.交通交通B.车辆车辆B5TheChineseCentralWeatherSta