第三课时grammar focus4c单元同步语法精讲精练

第三课时(GrammarFocus­4c)­单元同步语法精讲精练Unit7Teenagersshouldbeallowedtochoosetheirownclothes.►肯定句式：主语＋情态动词＋be＋过去分词(＋by...)eg：Teenagersshouldbeallowedtochoosetheirownclothes.青少年应该被允许选择他们自己的服装。►否定句式：主语＋情态动词＋not＋be＋过去分词(＋by...)►一般疑问句式：情态动词＋主语＋be＋过去分词(＋by...)？其肯定回答与否定回答分别为“Yes，主语＋情态动词”和“No，主语＋情态动词＋not”。【注意】含有情态动词的被动语态的一般疑问句的回答应保留原情态动词，但must表“必须”时，其否定回答应用needn't；而need表示“必要；必须”时，其肯定回答应用must。eg：—Mustalltheroomsbetidiedup？所有的房间都必须整理好吗？—Yes，theymust.是的，必须整理好。—No，theyneedn't.不，不必都整理好。—Needhebeoperatedonatonce？他需要立即手术吗？—Yes，hemust.是的，他必须。—No，heneedn't.不，他不需要。►特殊疑问句式：疑问副词/代词(不作主语)＋情态动词＋主语＋be＋过去分词(＋by...)？或疑问代词(作主语)＋情态动词＋be＋过去分词(＋by...)?eg：Whencanmycomputerberepaired？我的电脑什么时候能修好？一、根据句意，用括号中所给动词的适当形式填空。1．Yourhomeworkshould__________(do)byyourself.2．Theirworkmust_____________(finish)byfouro'clock.3．Howmanymagazinescan___________(borrow)inyourlibraryeveryweek?4．Thesebooksmustn't___________(take)outofthereadingroom.5．Shouldtheclassroom______________(clean)everyday?bedonebefinishedbeborrowedbetakenbecleaned二、语法填空。DearZhangLin，How'sitgoing？Ihavesomeproblemsatschool.Ifind6.___difficulttoworkintheeveningandIcan'tconcentrateonanything7.___themoment.Ispendmostofmytimelistening8.___recordsor9.________(watch)TVinsteadofdoingmyhomework.Theotherstudentsinmyclassaremuch10._______(good)thanme.Ihaveotherproblemsaswell.Ican'talwaystakedowntheimportantthingsmyteachersaid，becauseIwritetooslowly.ShetellsmethatI'mfallingbehindmyclassmatesinmystudies.I'mnotgoodat11.________(write)andIusuallyhandinmyhomeworklatebecauseIwon'tdoituntilthelastminute.

itattowatchingbetterwritingSoIoftenhavetofinddifferentexcuses12.________(let)myteacherknowwhyIhaven'tdonethehomework.I'mnotsureIwillgetthroughmyfinalexaminJanuary.I'mnowsofarbehindtheotherstudentsthatIdon'tknowhowIcancatch13.___withthem.Lastweek，whenmyteacherhelpedme14._____myhomework，shefoundsomanymistakes，whichmadememoreupset.Couldyoupleasegivemesomegood15.__________(suggest)?Yours，WeiHuatoletupwithsuggestions本课时其他知识点精讲精练►chance可数名词，意为“机会；可能性”。常用于短语achanceofdoingsth.或achancetodosth.中，意为“做某事的机会”。►educate动词，意为“教育；教导”。【拓展】education名词，意为“教育”。►keep...awayfrom避免接近，远离makeone'sowndecision自己做决定1．It'sagood_________(机会)ofimprovingyourEnglish.Don'tmissit.2．Hedoesn'twanttojoinany____________(社团)．3．Iwon'tbeableto__________(应付)withouthelp.4．Theoldinour_________(社会)needcareandprotection.5．Parentsshould________(教育)theirchildrentobehavewell.chancecommunitymanagesocietyeducate6