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ID:37189463
大小:64.00 KB
页数:4页
时间:2019-05-19
《现在完成时态》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、现在完成时态1. 用法:①过去发生的动作对现在造成的影响或结果:强调结果例:YesterdayIfinishedmyhomework,that’stosay,Ihavefinishedmyhomeworknow.②过去已经开始一直持续到现在的动作或状态:强调继续例:Ihavelivedheresince1990.2. 现在完成时的构成havehas+过去分词3. 现在完成时的四个基本句型肯定句Hehasfinishedthework.一般疑问句Hashefinishedthework?否定句Hehasnotfinishedthework.两回答Yes
2、,hehas.No,hehasn’t.特殊疑问句Whathashedone?4. 在下列情形下用现在完成时1九词语①already已经肯定句中或句尾例:Ihavealreadyfoundmypen.=Ihavefoundmypenalready.②yet已经否定句和疑问句句尾例:Ihavenotfinishedtheworkyet.Haveyouboughtacomputeryet?③ever曾经句中例:Haveyoueverseenpandas?④never从不句中例:IhaveneverbeentoBeijing.⑤just刚刚句中例:Ihavejustdonemy
3、work.⑥before以前句尾例:Ihaveneverbeentherebefore.⑦sofar到目前为止例:Sofarhehaslearnt200words.⑧howlong多久例:Howlonghaveyoulivedhere?⑨howmanytimes多少次例:HowmanytimeshashebeentoBeijing?2两词组havegoneto去了某地例:HehasgonetoBeijing(去了北京)havebeento去过某地例:HehasbeentoBeijing.(去过北京)3两结构fortwomonthsfor+一段时间Jimhasl
4、ivedherefor2months.sincelastyearsince+过去点时间LucyhasbeeninBeijingsince3yearsago.since3yearsagosince1990sincehecameheresince+过去时态句子HehasbeeninChinasincehecamehere.4如果句子里面没有时间状语,汉语意思能够加“已经”,往往用现在完成时态。例:Haveyoulostyourlibrarybook?你已经弄丢了从图书馆借的那本书吗?5现在完成时态还常常用于下列句型Theyhaveplantedmanytreesinthelastfe
5、wyears.在过去的几年,他们已经种了很多树。ThisisthebestbookIhaveeverread.这是我曾经读过的最好的一本书。ItisthefirsttimeIhaveplayedthecomputergames.这是我第一次玩电脑游戏。5. 在现在完成时中,一次性动词不能和一段时间状语连用例:Hehasboughtthebookfor3years.(错)因buy这个一次性动词不能和一段时间for3years连用,改正的办法有五种:①Hehasboughtthebook..(去掉一段时间for3years)②Heboughtthebook3yearsago
6、(改为一般过去时,使句子的意思不变)③It’s3yearssinceheboughtthebook.=3yearshaspassedsinceheboughtthebook.(改为固定句型Itis---since---)④Hehasnotboughtthebookfor3years.(改为否定句)⑤Hehashadthebookfor3years.(用延续性动词have代替buy)6. 还有其他一次性动词也是这种情况,可参照前面的五种办法改正,前四种改法都一样,第五种改法各不相同,举例如下:①come/arrive/getto/reach→behere例:Ihaveco
7、meherefor3years.(错)改为:Ihavebeenherefor3years.②leave/go→beaway例:Hehasleftfor3hours.(错)改为:Hehasbeenawayfor3hours.③begin/start→beon例:Thefilmhasbegunfor3minutes.(错)改为:Thefilmhasbeenonfor3minutes.④open→beopen/close→beclosed例:Theshophasopenedfor3ye
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