译林8B期中复习二(语法梳理).docx

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1、8B期中复习二（语法梳理）U1Grammar现在完成时1一，概念1表示过去发生的动作对现在造成的影响。【强调过去到现在】译为‘--------了’，‘---已经------’Eg:Someonehasalreadypollutedtheriver.2_____________________________________e.g.3_____________________________________e.g.二，结构。have/has+V过去分词Ialready[read]thisbookmanytimes.三，关键词【归纳总结；】1.for+一段时间2.sin

2、ce+点时间/句子3.howlong提问1.inthepast+一段时间（译为；在过去的-----多长时间里）2.duringthelast+一段时间注意；1.already与yet用法；Already;用于肯定句，放句中或句末Yet;用于一般疑问句，否定句，放句末2.since的时态用法；Since前用完成时，后用过去时。四，句型转换1.变一般疑问句，把have,has提前。Already改为yet.2.变否定句，在have/has后加not,Exercise完成填空，划出关键词。1.Shealready[finish]herhomework.变一般疑问句并作肯回

3、，否回；7变否定句；2.Ijust[eat]thefood.3.youever[move]house？4.wenever[hear]ofthestorybefore.5.you[see]anyfilmsrecently？Yes,wehave.6.Mr.Jackson[write]about10novelssofar.7.SunshineTown[change]alotovertheyears.8.He[live]inthisareasincehewasborn.Since的时态用法；9.She[teach]Englishfor12years.10.people[pl

4、ant]manytreesinthelastfewyears.U2Grammar现在完成时2一.havegone(to):________________________________________Havebeen(to)___________________________________________--Havebeen(in)___________________________________________Exercise:WhereisJohn?He_____________Beijing.He___________theresinceaweeka

5、go.Ourteacher___________theiroffice.Theywillbebackinaminute.They_________never_______Singapore.ButI__________theremanytimes.二．现在完成时的延续性1.在后面含有时间状语为for+一段时间、since+点时间肯定句中或howlong提问的特殊疑问句中，动词需用延续性动词，非延续性动词需要转化。Eg:Howlonghasthelittlebabyslept?Hehassleptforsixhours.He___________thismotorcy

6、cleforovertwoyears.A.hasboughtB.boughtC.hashadD.hadhad2.非延续性动词转化的有。buy---------------------------------_________________------------_________________borrow-----------------------------_________________-------------_________________leave-------------------------------_________________--

7、-----------_________________die----------------------------------_________________-------------_________________begin/start-------------------------_________________-------------_________________join---------------------------------_________________-------------_________________arriv