Review•复习L127--L128的单词、词组•复习时态的构成•复习must与haveto的用法•复习情态动词can与must的用法•may:情态动词,后+V.1、表示允许,许可请求别人允许自己做,may/might均可,might语气更委婉eg:May/MightIcomethismorning?自己允许别人做eg:Youmayleavenow.•2、表推测“可能…”may/might+be/do→对现在或一般情况的推测may/might+bedoing→对现在或将来正在进行的事情的推测may/might+havedone→对过去情况的推测may/might+havebeendoing→对过去正在进行的事情的推测3、表祝愿eg:Mayyouhaveagoodtime.•WhereisAmy?1)Shemustbeinherroom.I'msuresheisinherroom.2)Shecan'tbeinherroom.I'msuresheisn'tinherroom.3)Shemaybeinherroom.I'mnotsuresheisinherroom.4)Shemaynotbeinherroom.I'mnotsuresheisinherroom.一定不可能可能可能不•must、can、may表推测的区别1)must/can表推测“肯定…,一定…”2)may/might表推测,只是一种可能,并不确定might比may的语气更弱,更委婉maynot可能不can't不可能•表推测的情态动词的用法:can不肯,may不问,must肯定不否问即:can不用于肯定句,may不用于疑问句,用于肯定句可以表示不肯定的推测,must只用于肯定句,表示肯定的推测•eg:Hellongoonatripwithus,butsheisn'tquitesure.A.shallB.mustC.mayD.canCPyramid[prə'md]ɪɪsphinx[sfnks]ɪEgypt[i:dpt]ˈʒɪn.埃及abroad[əbr:d]adv.ˈɔ国外worry[wri]ˈʌv.担忧•Egypt[i:dpt]n.ˈʒɪ埃及•abroad[əbr:d]ˈɔadv.国外•worry[wri]v.ˈʌ担忧•Egypt[i:dpt]n.ˈʒɪ埃及•Egyptian[dpən]ɪˈʒɪʃadj.埃及的,埃及人的n.古埃及语;埃及人•abroad[əbr:d]adv.ˈɔ国外←→homegoabroad出国liveabroad在国外生活athomeandabroad在国内外•worry[wri]v.ˈʌ担忧worries--worried--worriedworryaboutsb./sth.担心某人或某事eg:Mywifealwaysworriesourchildren.adj.worried烦恼的,忧虑的worrying使人烦恼的•interestinginterested•surprisingsurprised•excitingexcited•现在分词、过去分词做adj.主语不一样,现在分词主语为物,过去分词主语为人