文档介绍：考点8表猜测的句型难点诠释典型例题高考闯关◆◆/ClicktoaddText//不可能比cannot弱///有可能吗?比can弱考点1:对现在和未来的推测(语气由强到弱)否定式疑问式mustshouldoughttocancould必定、必然应该是同should/可能词形肯定式可能不比maynot弱//maymight或许、也许比may还弱典型例句—Someoneisknockingatthedoor.—ItmustbeMary.(Icanreadherstep.)—ItshouldbeMary.(e.)—Itcannot(couldnot)beMary.(Shehasgoneabroad.)—Can/CoulditbeMary?—Itmay/mightbeMary.(butIamnotsure.)—Itmaynot/mightnotbeMary.①must常用于肯定句,一般不用于否定句和疑问句;can常用于否定句、疑问句或感叹句中,表示疑惑、。②could,should,might不一定与过去时间有关,而是表示可能性弱。温馨提示musthavedone(用于肯定句)1canhavedone(疑问、否定)couldhavedone(肯定/否定/疑问)2mayhavedone(肯定、否定)mighthavedone(肯定、否定).—DoyoustillrememberthedaywhenwewenttotheGreatwall.—Icannotrememberitwell,butcouldithavebeensometimelastsummer?Itistoolate,obed./Hemaynothavefinishedhishomework,:对过去的推测◆◆高考链接It__havebeenTomthatparkedthecarhere,asheistheonlyonewithacar.():一定是汤姆把车停在这里的,因为只有他有车。根据后半句asheistheonlyonewithacar可知,此句表达的是非常肯定的推测。musthavedone表示“过去一定做了某事”。A、B两项表示并非十分肯定的推测;shouldhavedone表示“本应该做某事而实际上未做”。答案:C◆◆『高考闯关』1You___behungryalready—'''tThereisnolighton—''''t2句意:你不可能已经饿了,你吃午饭才两个小时。根据句意可知此句表示对现在的推测。must