免费下载网址http://jiaoxue5u.ys168.com/Unit13We’retryingtosavetheearth【学习目标】(一)知识与技能1.Tolearndifferentformsofverb.2.TounderstandtheuseofModalVerbs.(二)过程和方法3.Toknowhowtousedifferentformsofverbindifferentsituations.4.ToknowhowtouseModalVerbsindifferentsituations.(三)情感态度和价值观5.Afterlearningthispart,everystudentwillbeabletodescribetheirawarenessoftheserioussituationofpullutionandsolutionstoenvironmentalproblemsusingwhatwehavelearnedinthislesson.【自主梳理】1.判断下列句子中使用了什么时态及情态动词。1.Wearetryingtosavetheearth.2.Theriverusedtobesoclean.3.Itwasconsideredthenicestriverinthetown.4.Theairhasbecomereallypolluted.\5.Weshouldhelpsavewthesharks.2.presentation1)verbforms现在时过去时将来时过去将来时一般主动语态ask/asksaskedshall/willaskshould/wouldask被动语态am/is/areaskedwas/wereaskedshall/willbeaskedshould/wouldbeasked进行主动语态am/is/areaskingwas/wereasking被动语态完成主动语态have/hasaskedhadasked被动语态have/hasbeenhadbeen解压密码联系qq1119139686加微信公众号jiaoxuewuyou九折优惠！淘宝网址：jiaoxue5u.taobao.com免费下载网址http://jiaoxue5u.ys168.com/askedasked2)Modalverbs.MainfunctionofModalVerbs.①.can(could)表示能力，could主要指过去时间；表示允许。②.may表允许，might可以指过去时间，也可指现在时间，语气更委婉。③.must表示义务。意为“必须”（主观意志）④.shall表征询意见⑤.will表意愿，用于各种人称陈述句；表请求，用于疑问句。⑥.should/oughtto应该【重点领悟】1)Fillinblankswiththecorrectformsofverbs.Interviewer:___________youever________(take)partinanenvironmentalproject?Ken:Yes,Ihave.I___________(help)withaClean-UpDaylastyear.Itwas_________(consider)thebiggestclean-upprojectthiscity__________ever___________(have).Interviewer:Howmanypeople__________(take)part?Ken:I________(think)morethan1,000people________(come)tohelpout.Interviewer:That’sfantastic!Iguesseveryoneinthiscityis____________(try)toimprovetheenvironment.Ken:Yes,evertoneshould_____________(play)apartinkeepingthecityclean.Possibleanswers:Havetaken,helped,considered,hadhad,took,...
