高中英语(Module 4 Sandstorms in Asia)课件1 外研版必修3 课件.ppt

Module4SandstormsinAsia预习学案------阅读理解预习学案------易错短语预习学案-----完成句子句型【学情调查，情境导入】【问题展示，合作探究】Cut拓展2.digup掘出、挖出（过去时dug，过去分词dug，现在分词：digging）Hewasluckyenoughtodigupavaluableoldpotinthefield.他很幸运地在田地里挖出一个很有价值的古坛子。3.protectvt.保护，警戒Youneedwarmclothestoprotectyouagainstthecold.Thedriverwaswearingdarkglassestoprotecthimselffromthesun.司机带着眼镜以保护眼睛不受阳光刺激。总结：protect....from/against保护….免遭…/保护……不受……的伤害4.amajordisaster__________majoradj.主要的，重要的（专业课程中）主修的n.(大学里的)主修科目，专业；某专业的学生vi.主修（某专业）amajorcause主要原因themajorsubjects主修课程练习：①Themajorchallengeofthiscountryistofeedsomanypeople.这个国家的主要挑战是要养活这么多人。②Hemajorsinchemistry.她主修化学。majorin拓展：majorityn.多数，大多数“themajority+of+名词”做主语，谓语动词的单复数由介词of后面名词的单复数决定。One-thirdofthecountry______coveredwithtreesandthemajorityofthecitizens_____blackpeople.Ais;areBis;isC.are;areD.are;is5.startamasscampaign开展了一场大规模活动massadj.民众的，群众的；大规模的（仅用于名词前）读例句，体会用法1)Therearemassesoficeintheriver.河里有很多冰.2)Thereisamassofchildrenintheyard.院子里有很多孩子.短语归纳：amassof/massesofamassof+复数名词/不可数名词（做主语，谓语动词用单数）massesof+复数名词/不可数名词(做主语，谓语动词用复数)6..Theyareoftensothickthatyoucannotseethesun,andthewindissometimesstrongenoughtomovesanddunes.通常情况下，沙尘暴密集得遮天蔽日，并且有时候强烈的风足以推动沙丘前进.(1)so...that...如此，以至于，引导结果状语从句模仿造句：他是一位如此好的老师以至于同学们都喜欢他。Heissogoodataecherthatheislovedbyallhisstudents.拓展：so...that...结构中，so+adj./adv.放句首时，句子要用半倒装语序。Sotiredweretheythattheycouldnotwalkanyfurther.模仿造句：这个男孩如此害怕，以至于他不知道该做些什么。Sofrightenedwastheboythathedidn’tknowwhattodo.（2）enoughadv..充足的，足够做...的常用结构：adj./adv.+enough+todo这个塑料袋不够大，装不下这么多东西。Theplasticbagisno___________________somanythings.常用结构enough+n.+todo或n.+enough+todo.我们有足够的时间来阅读这些参考书。Wehave___________________________thereferencebooks.7.Tohavebeencaughtinasandstormwasaterribleexperience.(1)tohavedownsth.结构是动词不定式的完成式，表示不定式短语动作发生在主句谓语动词之前。在此句中todo结构做主语Tohavebeenpunishedwasanunforgettableexperience.体会下文例句：Tobecyclinginasandstormisfrightening.(2)becaughtin被困在（某种状况中）,遭遇（风，雨，雪等）我们的车被大雪困住了。Ourcarwascaughtintheheavysnow.8.SandstormsinChinaappeartohaveincreasedinrecentyearsasaresultof“desert