英语人教版八年级下册unit8-SectionA-Grammar(4a-4c)

Unit8HaveyoureadTreasureIslandyet?SectionA3(GrammarFocus-4c)温泉（齐楼）初中李娜Warmup（Readthefollowingsentenceswehaveseen.）•HaveyoureadLittleWomenyet?•Yes,Ihave./No,Ihaven't.•HasTinareadTreasureIslandyet?•Yes,shehas.Shethinksit’sfantastic.•Haveyoudecidedwhichbooktowriteaboutyet?•Yes,Ihave.I’vealreadyfinishedreadingit.Itwasreallygood.PresentPerfectTense(现在完成时态)•定义：•1.表示过去发生或已经完成的某一动作对现在造成的影响或结果。•e.g.–Haveyouhadyourlunchyet?•–Yes,Ihave.I’vejusthadit.(现在我不饿了。)•时间状语：already,yet,just,ever,never,before•2.表示动作或状态从过去某一时刻开始，一直延续到现在，而且可能还要继续下去。•e.g.Ihaven’tseenherthesedays.•I’veknownBobforthreeyears.•I’vebeenatthisschoolforovertwoyears.•构成：Have/has(助动词)+Vp.p•句式：•1.肯定句：主语+have/has+过去分词(+其它)•2.否定句：主语+have/has+not+过去分词(+其它)•3.一般疑问句：have/has+主语+过去分词(+其它)？动词过去式与过去分词的变化:规则动词的过去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。•规则变化：•1.一般加ed。如：pick→picked→picked;wish→wished→wished;stay→stayed→stayed•2.以不发音的e结尾的动词后面加d。如：like→liked→liked;phone→phoned→phoned•3.以“辅音字母+y”结尾的动词，变y为i，再加-ed。如：study→studied→studied;•4.以辅元辅结尾的，双写再加-ed。如：•stop→stopped→stopped;clap→clapped→clapped•不规则变化：•5.以不变应万变。如：let→let→let;put→put→put;read→read→read•6.若中间有双写e，则去掉一个e，单词末尾再加t。如：feel→felt→felt;keep→kept→kept;sleep→slept→slept•7.结尾的字母d变t。如：lend→lent→lent;build→built→built;send→sent→sent•8.变为以-ought或-aught结尾。如：buy→bought→bought;bring→brought→brought;catch→caught→caught;teach→taught→taught活学活用•写出下列动词的过去式、过去分词：•drink______see______find______leave______tell______•—WhyisMr.Yangstillintheteachers’office?•—Maybehe________hisworkyet.•A.doesn’tfinishB.hasn’tfinished•C.haven’tfinishedAlready、just、yet•1、already意思是“已经”•①通常用于陈述句中（放在have和has的后面）•②也可用于疑问句，表示期望得到肯定的回答或表示惊异，此时already常放在句末。•Shehasalreadyfoundherbike.•Hasshefoundherbikealready？（她已经找到自行车了？）•2、yet用法•①yet可用于否定句，此时译为“还”；•Ihaven’tfoundmyruleryet.②也可以用于疑问句，译为“已经”（放在have和has的后面也可放在句末）•Haveyoufoundyourruleryet？（你已经找到尺子了吗？）•3、just只用于陈述句意思是“刚才”（放在have和has的后面）•Ihavejustreceivedaletter.Exercise•1.Finish4a、4bandchecktheanswers.•Keys:loves,hasread,willbe,finished,willwrite,hasn’tread•2.Finish4candchecktheanswers.•Makeconversationsandcompletethechart.(Followtheconversationonpage60)3.按要求完成下列句子•Jackhasclosedthedooralready.(改为否定句)•Jack_____closedthedoor______.•Maryhaswateredtheplantsinthegardenalready.(改为一般疑问句)•_____Marywateredtheplantsinthegarden_____?•HowdoyoulikethisbeautifulplaceinXi′an?(同义句)•What_____you___________thisbeautifulplaceinXi′an?•HaveyouwatchedthemovieHarryPorteralready?(给否定回答)•_____,__________yet.