高一英语外研版必修3课堂学案：MODULE4SANDSTORMSINASIA WORD版含解析.doc

课堂导学问题导读SandstormsinAsia1.Whatisthebestdescriptionaboutasandstormaccordingtothepassage?A.ItisamajordisasterformanyAsiancountriesforcenturies.B.Itisstrongwindcarryingsand.C.Itisawaytocauselandtobecomedesert.D.Itisakindofnaturaldisasterthatcan’tbetreated.答案：B2.WhatisthemainreasonfortheincreaseofsandstorminChinarecently?A.Tobeclosetomanydeserts.B.TheworseningoftheweatherinChina.C.Theresultofdesertification.D.Peoplecuttingdowntreesanddiggingupgrass.答案：C3.Whateffectsaresandstormsbringingtopeoplelivingincities?A.Thewholecityisusuallycoveredbythickandyellowdust.B.Trafficmovesveryslowly.C.Peoplecan’tbreathwellandthedustmakesthemill.D.Allabove.答案：D4.Whatisthebestwaytoavoidtheeffectsfromthesandstorm?A.Tolivefarawayfromdeserts.B.Tostayathomewhenasandstormhappens.C.Towearmaskifyouwanttogoout.D.Toplantmoretrees.答案：D5.WhichofthefollowingisnottheelementtomakeCentralAsia,NorthAmerica,CentralAfricaandAustraliathefourmainplaceswheretherearesandstorms?A.Theclimateintheseplacesisratherbad.B.Theyarealltheplaceswithbigdeserts.C.Thenaturalenvironmentintheseplacesisworseningeveryyear.D.Thegovernmentsintheseplacespaidlittleattentiontotheprotectionofnature.答案：D【开放性问题】Haveyoueverbeeninasandstorm?Doyouthinkitfrightening?Whatistheadviceyouwanttogivetothepeoplearound?难句透视1.ScientistshavetriedmanywaystosolvethisproblemandinChina,amasscampaignhasbeenstartedtohelpsolveit.科学家已经采用许多的方法来解决沙尘暴的问题，在中国，一场大规模的整治沙尘暴战役开始了。剖析:(1)本句是个并列句，由and连接。tosolvethisproblem作目的状语。第二个分句为被动结构。(2)动词try意思为“尝试，试用，试验”，后面接名词、代词或短语。trytodosth.意思是“尽力/试图做某事”，但未必成功；trydoingsth意思是“试着做某事”；tryon意思是“试穿”，均为try的常用短语。拓展:及物动词start在本文中的意思为“使开始”。start还有“发动(汽车)，开创(事业)，创办(报纸)，开始做某事”等意思。短语tostartwith意思为“首先，起初”，startwith相当于beginwith意思为“以……开始”。2.Theyareoftensothickthatyoucannotseethesun,andthewindissometimesstrongenoughtomovesanddunes.沙尘暴常常是浑浊不堪，导致你看不见太阳，而且大风有时很强劲，连沙丘都被吹跑了。剖析：本句为并列句，由and连接。第一个分句是so…that…短语构成的句子，that从句表结果。第二个分句中的enoughtodo结构意思为“足以到……的程度”，enough之后是不定式作目的状语。拓展so…that…意思为“如此……以至于……”，在这里引导结果状语从句，与such…that是同义短语。so后接形容词或副词。such后接名词