discussionexpressTolearntousethefollowingstructuresproperlyandcorrectly:enoughtotoo…to语法讲解建议采用归纳法，如尽可能多的呈现一些(yīxiē)相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。Lookatthefollowingsentences.4.…butshewastoosmalltoreachthekey.（七下Unit6）5.Hewasbraveenoughtosavehisneighbourfromafire.（七下Unit7）6.Asaresult,thebirdsdonothaveenoughfoodtoeat.（八上Unit6）7.TherewasnotenoughspaceforTimmytopullhimselfthrough.（八上Unit8）8.You’reoldenoughtolearnaboutmannersnow,Hobo.（P64）9.Youarenevertoooldtolearn.（P64）10.Ifyouareintheirway,Britishpeoplewillbepoliteenoughtowaittillyoumove.（P67）Fillintheblanks.5.He_____________________________(brave,save)hisneighbourfromafire.6.Asaresult,thebirdsdonothave______________(food)toeat.7.Therewasnot_____________(space)forTimmytopullhimselfthrough.8.You____________________________(old,learn)aboutmannersnow,Hobo.9.Youarenever______old______learn.10.Ifyouareintheirway,Britishpeoplewill______________________________(polite,wait)tillyoumove.1.Thelittlegirlistooshorttoreachtheorangeonthetable.（同义句转换(zhuǎnhuàn)）Thelittlegirlisn’t____________toreachtheorangeonthetable.2.LinDanplayedbadmintonverywell.HewontheThomasCupagain.（合并为一句）LinDanplayedbadmintonwell_____________wintheThomasCupagain.以上我们已经通过归纳总结和练习对本课的语法内容有了一定的了解(liǎojiě)，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。enoughto的用法(yònɡfǎ)Ⅰ.enough作定语，意为“足够的，充分的”，位于(wèiyú)名词之前。Ihaveenoughmoneyforthebook.我有足够的钱买这本书。Youhaveenoughtimetodoit.你有足够的时间来做这件事。Ⅱ.enough作状语，意为“充足地，充分地”，修饰形容词或副词，放在形容词或副词之后。Thatcoatisdearenough.那件大衣很贵。Isthisgoodenough?这个够好吗？Ⅲ.enough作表语(biǎoyǔ)，意为“足够的”。Sixbottlesshouldbeenough.六瓶应该够了。Suzywantstotellherparentswhatshethinksaboutherfriends.Helphermakesentencesusing“tobe+adjective+enough+to-infinitive”.hisfriends/kind/anytime/help___________________________________________________MillieSandyKittySimonAmytoo...to的用法(yònɡfǎ)可以在不定式前加介词for引出逻辑(luójí)主语。如：Theboxisveryheavy.Thelittleboycannottocarry.=Theboxistooheavyforthelittleboytocarry.Theappleisveryhigh.Thechildcannotreachit.=Theappl