英语人教版八年级下册unit8 Grammar.ppt

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1、Unit8GrammarFocus4aUsethewordsinbracketstocompletetheconversations.1.A:Wouldyoulikesomethingtodrink?B:No,thanks.______________________.(just/drinksometea)2.A:Iheardyoulostyourkey.___________________________________?(find)B:No,notyet.3.A:DoyouknowwhenTomisleaving?B:______________________.(

2、already/leave)A:When__________________________?(leave)B:Thismorning.4.A:Isyoursistergoingtothemovieswithustonight?B:No._____________________________?(already/seethefilm)5.A:Whatdoyourparentsthinkaboutourplan?B:I____________________(not/tellthem/yet)4bFillintheblankswiththecorrectformsofth

3、ewordsinbrackets.Sally_________(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She________already_________andintheeveningshereadsbooks.She__________already_________(read)morethan100differentbooks!Herfavoritekindofbooksissciencefiction.Sheisinterestedinsciencean

4、dtechnologyandlovestoimaginewhattheworld________(be)likein50years.She_______(finish)readingabookaboutrobotslastweekand_________(write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe_________(notread)yetandshecan’twaittoreadthem!4cComplete

5、thechartwithinformationaboutyouandafriend.GrammarThePresentPerfectwithalready,yet1.Haveyouwateredtheplantsyet?Yes,Ihavealreadywateredthem.2.Haveyoufinishedyourhomeworkyet?Yes,Ihavealreadyfinishedit.3.Haveyoufoundyourbikeyet?Yes,Ihavealreadyfoundit.●现在完成时的构成:现在完成时是由“助动词have/has+动词的过去分词”构成。

6、助动词要和主语的人称、数保持一致。现在完成时●现在完成时的用法:(1)表示过去某个时间发生的动作对现在造成的影响或结果。常使用just,already,yet等时间副词。—Haveyouhadlunchyet?你吃了午饭吗？—Yes,I’vejusthadit.是的,我刚刚吃过。(现在我不饿了)(2)表示从过去某一时刻开始一直持续到现在的动作或状态。这个动作可能刚停止,也可能仍然在进行。常带有for和since等表示一段时间的状语。Hehastaughtheresince1981.他自1981年就在这儿教书。(可能还要继续教)Ihaven’tseenherforfoury

7、ears.我有四年没见到她了。●现在完成时的时间状语:(1)用副词already和yet。already一般用于肯定句中,yet一般用于否定句和疑问句中。Wehavealreadyfinishedourhomework.我们已完成家庭作业了。Theyhaven’tfinishedtheirhomeworkyet.他们还没有完成家庭作业。(2)用ever和never。多用于否定或疑问句中,表示“曾经”或“从未”等。—HaveyoueverbeentotheGreatWall?你曾经去过长城吗？—No,Ihaveneverbeen