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7BUnit57BUnit5Grammar(2)Grammar(2)教学目标：•1、进一步学习巩固如何使用can与could表达现在与过去的能力及可能性•2、学习用what和how构成感叹句回顾：•1.Can表示我们能做某事;could表示我们能做某事。•2.Can与could还可表示，could表示的可能性比can。当我们谈论过去的可能性时，只能用。但我们不能用can或could谈论。1.目前；过去2.可能性，小，could，将来一定会发生的事情Fillintheblanks:•____youspeakJapanese?No,I____________.•_____youplaythepianowhenyouwereeight?Yes,I_______.•_____youcook?YesI_____.•______youusecomputerlastyear?Yes,I_______.•_____youplaybasketball?No,I______________becauseI______________runfast.•___yourideahorse?IwantbutI__________________.Shecan’tcatchthetrain.Wecan’trowaboat.8:00Icouldn’topenthedoor.Hecouldgohomebybike.leftmykeyintheofficehadabikeShecan’thelphermotherdothehousework.Helikesreadingbooksinthelibrary.Hecan’tflyakitewithyou.Danielisfreethisweekend,hecangototheHelpingHandsClub.Heisveryhard-working.Hecancomefirstintheexam.用“can”&“could”的正确形式填空1.I________gotoschoolonfoot,becausemyhomeisnotfarawayfromschool.2.Withoutair,we________live.3.Itwillbehottomorrowsowe_______wearshortsleeves.(袖子)4.Iforgotmykey.I________openthedoor.5.Hewasathomealone.He________beinhospital.cancan’tcouldn’tcouldn’tcanHowdangerous!Whatabigfire!Howbravethegirlis!Whatabravegirlsheis!Whatabeautifulflower!Whatbeautifulflowers!Whatbeautifulsnow!用what和how构成的感叹句感叹句表示说话的惊讶,喜悦,气愤等情绪.很多感叹句是用what和how引起的.What用来修饰一个名词.how用来修饰一个形容词,副词和动词.What引起的感叹句结构1.What+a(an)+形容词+单数名词+主语+谓语Whatafineday(itis)!2.What+形容词+不可数名词+主语+谓语Whatgoodnews(itis)!3.What+形容词+可数名词复数+主语+谓语Whatbeautifulflowers(theyare)!How引起的感叹句结构How+形容词/副词+主语+谓语Howclevertheboyis!Howfastheisrunning!•What引起的感叹句都可以转换为how引起的感叹句Whatgoodnewsitis!Whatbeautifulflowerstheyare!How引起的感叹句修饰形容词时可以转what引起的感叹句.Howclevertheboyis!Howgoodthenewsis!Howbeautifultheflowersare!Whatacleverboyheis!A.Whatabeautifulbirditis!B.Howbeautifulthisbirdis!A.Whatbeautifulflowerstheyare!B.Howbeautifultheseflowersare!A.Howtallthemanis!B.Whatatallman(heis)!A.Howlovelythesepandasare!B.Whatlovelypandas(theyare)！A.Wow,whatabigpumpkin!B.Howbigthispumpkinis!用How,What,Whata,Whatan填空•1.________nicepencil!•2._________beautiful!•3._________interstingbook!•4.__________bighouse!•5._________deliciousfood!WhataHowWhatanWhataWhat•将下列句子改为感叹句.•1.MrsSunisveryold!•2.Thefirewasveryhot.•3.ZhangHuawasverybrave.HowoldMrsSunis!Howhotthefirewas!HowbraveZhangHuawas!•4.ZhangHuawasabraveyoungman.•5.Itishardwork.•Theyarepolitestudents.WhatabraveyoungmanZhangHuawas!HowbraveZhangHuawasWhathardworkitis!Howhardtheworkis!Whatpolitestudentstheyare!Howpolitethestudentsare!