Unit7Teenagersshouldbeallowedtochoosetheirownclothes
SectionAGrammarFocus-4ckeepsb
fromsth
keepsb
fromdoing
givesb
ahugtalk/shoutbackto…thinkbackto…havescarydreamsregretdoingsth
让某人避开……防止某人做……给某人一个拥抱顶撞某人回忆……做噩梦后悔做某事KeyPhrasesGrammarFocusIdon’tthinksixteen-year-oldsshouldbeallowedtodrive
Iagree
Theyaren’tseriousenough
Doyouthinkteenagersshouldbeencouragedtomaketheirowndecisions
Teenagersshouldnotbeallowedtohavepart-timejobs
No,Idon’tagreewiththis
Teenagersaretooyoungtomaketheirowndecisions
Idisagree
Theycanlearnalotfromworking
Ifyoudon’tuseaflash,thenitmaybeOK
Doyouthinkwemaybeallowedtotakephotosifwedon’tuseaflash
肯定:情态动词+be+动词的过去分词否定:情态动词+not+be+动词的过去分词一般疑问句:情态动词+主语+be+动词的过去分词
特殊疑问句:疑问词+情态动词+主语+be+动词的过去分词
情态动词的被动语态结构1
Youmustcleanyourbedroomeveryday
Yourbedroommustbecleanedeveryday