新概念英语第一册-语法练习(四)(共7页).doc
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1、精选优质文档-倾情为你奉上新概念英语第一册 语法练习(四)新概念英语第一册学习资料免费下载:新概念英语第一册视频免费下载:新概念英语第一册语法:现在完成时现在完成时构成:主语+助动词have, has+过去分词用法:1) 表示过去发生的和现在有某种联系的动作,常和just, usually, already, since等时间副词连用。I have just had lunch. (饱了,不用再吃了。)He has had a cup of tea.(不渴了,不用再喝。)They have already had their holiday. (不能再度假了。)The boy has alre
2、ady read the book. (已经知道书的内容了,不用再看了。)2) 询问别人是否做过某事一般用现在完成时:Have you finished your homework?Have you been to Beijing?Have he seen the film?3) 表示开始于过去并持续到现在的动作I have lived in Beijing for twenty years.I have worked for this school for 1 year.4) 表示一种经历,经验:去过地方,做过事情,经历过事情I have never had a bath.I have ne
3、ver seen a film.I have never been to cinema.I have ever been to Paris.Have been to表示去过,have gone to 表示去了I have been to London.(人已经回来)He has gone to London.(人还在那里)5) 表示一种结果, 一般不和时间副词联用I have lost my pen.I have hurt myself.He has become a teacher.She has broken my heart.句型变化:变疑问句将助动词移到句首,变否定句在助动词后面加no
4、t.Have you lost your pen? I have not lost my pen.肯定回答及否定回答Yes, I have. / No, I have not.特殊疑问句What have you done?What has he done?一般过去时与现在完成时的区别:凡是有明确的表示过去的时间状语的句子为过去时。注意:有些动词表示的动作有一个终点,不能再延续,因此不能和表示一段时间状语连用。错:Ive left Beijing for 3 days.对:I left Beijing 3 days ago. I have been away from being for 3
5、days.练习题考查过去分词的典型考题1.Now that weve discussed our problem, are people happy with the decisions _?A.takingB.takeC.takenD.to take【解析】C。由于名词decision与动词take之间为,所以只能选taken,其中taken用作定语,修饰名词decision。句意为:我们已经讨论了我们的问题,人们对作出的决定会满意吗?又如:We couldnt agree on any of the problems discussed.我们未能就所讨论的任何问题达成协议。2.For br
6、eakfast he only drinks juice from fresh fruit _ on his own farm.A.grownB.being grownC.to be grownD.to grow【解析】A。由于名词fresh fruit与动词grow之间为被动关系,所以首先可排除选项D。而B和C虽然可以表示被动,但与句意不吻合,因为being grown表示一个正在进行的被动动作,to be grown表示一个尚未发生的被动动作,均不合题意。3._ twice, the postman refused to deliver our letters unless we chai
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