最新情态动词及情态动词的被动语态教学讲义PPT课件.ppt

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1、情态动词及情态动词的被动语态情态动词有哪些?can/may/must/will/shall/should/oughttoneed/darehadbetter/wouldrather,usedto/haveto/beableto2情态动词的含义序号原形过去式主要含义1cancould2maymight3mustmusthadto4needneeded5daredared6willwould7shallshould1.能力2.请求/准许3.可能性1.请求/准许2.可能性*3.祝愿1.义务(必须);2.猜测(肯定)需要敢愿意1.征求意见2“应该”(should)3疑问式：情态动词+主语+be+p.

2、pcan/could+主语+bedonemust+主语+bedoneshould+主语+bedonemay/might+主语+bedonehad+主语+betterbedonehave+主语+tobedone1.Icanfinishthework.Theworkcanbefinishedbyme.Cantheworkbefinishedbyyou?2.Weshouldplantmanymoretrees.Manymoretreesshouldbeplantedbyus.Shouldmanymoretreesbeplantedbyus?Teenagersshouldbeallowedbypar

3、entstodrivethecar.3.Parentsshouldallowteenagerstodrivethecar.Shouldteenagersbeallowedbyparentstodrivethecar?4.Youcanpasstheexamifyoustudyhard.Theexamcanbepassed(byyou)ifyoustudyhard.Cantheexambepassed(byyou)ifyoustudyhard?water(浇水)Treesmustbewateredbythemeveryday.Theymustwatertreeseveryday.Musttree

4、sbewateredbythemeveryday?Peoplemaycatchfishintheriver.Fishmaybecaughtintheriver(bypeople).Practice:1.Mymothercancookdeliciousmeals.Deliciousmealscanbecookedbymymother.2.Studentswillusethesetextbooksnextterm.Thesetextbookswillbeusednexttermbystudents.3.Youshouldwatertreesoften.Treesshouldbewateredby

5、youoften.4.Youmustnotplanttreesinverydryearth.Treesmustnotbeplantedbyyouinverydryearth.3.Sixteen-year-oldsshouldbeallowedtodrive.(先改为否定句，再改一般疑问句)Shouldsixteen-year-oldsbeallowedtodrive?Sixteen-year-oldsshouldn’tbeallowedtodrive.Yestheyshould./No,theyshouldn’t.4.Ithinktheworkshouldbedoneatonce.(改为否定

6、句)Idon’tthinktheworkshouldbedoneatonce.Drills:1.Weshouldlookafterelderpeopleverywell.2.Weshouldanswerthesequestionsassoonaspossible.3.Wemustcleanourclassroomthisafternoon.4.Youmusthandinyourhomeworkbeforenineo’clock.5.Youcanbringyourfriendstomybirthdaypartytomorrowevening.6.Youshouldn’ttouchthethin

7、gsondisplayinthemuseum.7.Theymaygrowfruittreesaroundvillagenextspring.心肌病（Cardiomyopathy）心肌病是指一组以心肌损害为特征，伴有心功能障碍的心脏疾病，共分两大类：1、病因未十分明确的，称特发性或原发性心肌病；2、病因已明确的或是全身疾病的一部分，称特异性或继发性心肌病。特发性心肌病：根据WHO/国际心脏病联盟命名小组的报告，