电大英语II.ppt

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1、电大英语II课件制作人：赵艳明退出目录UNIT1UNIT2UNIT3UNIT4UNIT5UNIT6返回退出UNIT1重点内容一、语法点二、音像教材重点三、习题答案四、自测题返回退出一、现在完成时的用法二、现在完成时的构成三、动词过去分词的构成四、与现在完成时常用的时间副词和短语返回退出1、表示经验或经历。常与ever或never连用eg.HaveyoueverbeentoHangzhou?I’venevertraveledbyair.2、表示最近发生过的动作情况。常与already或yet连用eg.Wehavealready

2、writtentoher.Shehasnotspentmuchtimeonityet.3、表示刚刚发生过的动作或事情。常与just连用eg.Theyhavejustsentusatelegram.Shehasjustcomehere.4、表示过去发生、目前可能仍在继续进行下去的动作或事情。常与since或for连用。eg.Hehaslivedtheresince1950.Wehaveknowneachotherformorethantwoyears.返回退出肯定否定You(I)haveseenit.I(You)havenot

3、seenit.We(You,They)haveseenit.We(You,They)havenotseenit.He(She,It)hasseenit.He(She,It)hasnotseenit.疑问式简略回答Have(They)youseenit?Yes,I(We,They)have.No,I(we,they)havenot.Hashe(she,it)seenit?Yes,he(she,it)has.No,he(she,it)hasnot.返回退出1、规则动词的过去分词与其过去式相同，即在动词后加或构成，如动词以结尾，变

4、为，再加。2、不规则动词的过去分词有其特殊形式。例如：动词原形过去式过去分词workworkedworkedarrivearrivedarrivedstudystudiedstudiedstopstoppedstopped动词原形过去式过去分词dodiddoneseesawseenloselostlostfindfoundfound返回退出1、现在完成时常和表示不确定的时间副词和短语连用，如already,before,yet,recently,lately等。例如：Wehavebeenverybusyr

5、ecently.Ihaven’ttoldyouthisbefore.HasMaryfoundherkeysyet?2、现在完成时常用和表示频度的时间副词和短语连用，如ever,never,often,sometimes,twice,threetimes等。例如：Wehavesometimeshadlettersfromhim.I’veneverlostathinginmylife.He’sphonedmetwicetoday.3、现在完成时可与包括现在时间在内的时间状语连用。如now,just,today,th

6、ismonth,thisyear,always,untilnow,inthepastfewyears等。例如：I’vefounditnow.Hehadjustbeentothelibrary.We’vehadtoomuchrainthisyear.返回退出1、寒喧语Howarethings?2、表示遗憾Whatashame!3、你从来对我不友好。Youarenevernicetome!4、我们太不走运了。We’renothavingmuchluck.5、征求别人的意见Shallwegoandaskthebutc

7、her?6、现在完成时用法Ihavetriedbutithasnotbeeneasy.I’velostmyhandbagandit’sgotmycarkeysinit.Haveyoulookedinthesupermarketoraskedthemanager?Ihaven’thadalookattheshelves.Ihaven’tboughtanythinginhere.Ihavejustremebered.I’vealreadysearchedandsearchedmyroomandIcan’tfind…

8、.Haveyouseenitanywhere?I’veneverunderstoodyourladies.They’vealwayslosingthings.I’veneverlostathinginmylife.You’vebeenveryluck.返回退出Page11)Bec