Unit 3 I've Got a Headache Grammar 课 中职英语外研版（2021）基础模块

Part4GrammarUnit3I’veGotaHeadacheLead-inPresentation

PracticeSummaryLookatthelyricsWehaveknowneachother我们认识了彼此sincewewerenineorten从我们九岁或十岁的时候Togetherwehaveclimbedthehillsandtrees我们一起爬山爬树。

基本结构have/has+done助动词（无实际意义）ThePresentPerfectTense(现在完成时态)PracticeSummaryPresentation

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Lead-inChangethesentencesPracticeSummary1.Theboyhasalreadygonehome.（改为一般疑问句）

___________________2.Thegirlhasjustgivenittome.（改为否定句）

___________________________3.Theyhaveevervisitedtheislandbefore.（改为否定句）

———————————————————————————Hastheboygonehome

yet?Thegirlhasn’tgivenittome

yet.Theyhave

never

visitedtheislandbefore.Presentation

Lead-inPracticeSummary句型结构肯定结构S.+have/has+done+其他.S.+have/has+not+done+其他.否定结构一般疑问结构Have/Has+S.+done+其他?Yes,S.+have/has.No,S.+haven’t/hasn’t.

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Lead-inPracticeSummarydone的变化work,callplan,stoplive,change2.以e结尾+dcry,try4.辅音字母+y,变y为i+ed1.直接+ed3.“辅元辅”结尾（重读），双写末尾字母+ed规则变化Presentation

Lead-inPracticeSummary用法1：过发影响现Ilostmykeys.Ihavelostmykeys.时态一般过去时现在完成时重点含义动作发生在过去对现在造成的影响过去现在将来Presentation

Lead-inPracticeSummary用法2：过发持续现1.WehavelearntEnglishforeightyears.2.ShehasalreadylivedinXi’anfor18years.发生在过去的动作持续到现在，甚至将来继续…过去现在将来Presentation

Lead-inPracticeSummary时间标志词already已经,一般用于肯定的陈述句,句中或句末never从未,一般用于肯定的陈述句,放在句中,表否定的含义ever曾经,一般用于疑问句Have+主语+ever+过去分词yet还,仍然,一般用于否定句和疑问句,用于句末just刚,一般用于肯定的陈述句,放在句中（注意与justnow的区别）recently近来,用于句末before以前,用于句末since+时间点/一过从句

自从......以来for+时间段

长达......

做题技巧PracticeSummaryPresentation

Lead-inPractice

1.找时间标志词，定时态2.看主语，定have/has形式3.变done要当心Lead-inPracticeSummaryPractice

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1.Allthestudents_______veryhardoverthelastthreeyears.

A.works

B.hasworked

C.haveworked

D.worked2.—Doyoustillplaybasketball?—Oh,no.I____itforthepasttwoyears.A.haven'tplayed

B.didn'tplay

C.won'tplay

D.hadn'tplayed3.—HowdoyoulikeBeijing,MissRead?—I'venoidea.I_____there.A.havegone

B.havebeen

C.haven'tbeen

D.haven'tgone4.—WhendidhegotoAmerica?—Oh,he______theresincehalfayearago.A.wentB.hasbeenC.hasgoneD.was5.Joe____mefourtimesthismorningalready.A.havecalledB.hascalledC.calledD.callshavebeento去过已归（人在）

常与次数once，twice，ever连用havegoneto去了未回（人不在）

人不在，有人找，主语很少为一二havebeenin在某地待了一段时间

与for/since连用注意：遇到here,there,home,abroad,去掉to,in

SummaryLead-inPracticePresentation

thepresentperfecttense过发影响现过发持续现(