2-4现在完成时讲解与练习.docVIP

模块语法聚焦二 现在完成时(一) 现在完成时用来表示在以前某个时间或某段时间已经发生的行为或曾经做过的事情对目前有某种影响；还可以表示到目前为止已经完成的事情。现在完成时态的基本句型结构是：“_______________________”。其用法主要有 1．当句子的主语是___________时，要用“has＋动词的过去分词”。例如： He has finished his homework.他已经做完作业了。 2．动词的过去分词变化形式主要有以下几种：大部分动词的过去分词和过去式相同，但也有许多不规则变化，需要特别记忆。例如：see—saw—seen, be—was/were—been, come—came—come, go—went—gone, take—took—taken等。 3.现在完成时的否定形式为________________________，其一般疑问句形式是把________ 提到句首，动词过去分词不变化。 例如： I have seen this film.我已经看过这部电影了。 I havent seen this film.我没看过这部电影。 —Have you seen this film?你看过这部电影吗？ —Yes, I have./No, I havent.是的，我看过。/不，我没看过。 He has been to Beijing.他去过北京。 He hasnt been to Beijing.他没去过北京。 —Has he been to Beijing？他去过北京吗？ —Yes, he has./No, he hasnt.是的，他去过。/不，他没去过。 实战演练 Ⅰ.单项填空 (　　)1.[2014?赤峰]—The storybook is very interesting. —I agree with you. I________ it twice already. A．read B．will read C．am reading D．have read (　　)2.—Hasnt Betty come yet? —No, and I________ for her for nearly two hours. A．wait B．waited C．have waited D．had waited (　　)3.—Do you want to see the film 3D Titanic? —The film 3D Titanic? I________ it. Its really wonderful. A．see B．have seen C．was seeing D．has seen (　　)4.—Have you ever been to Beijing? —________. I went there last year. A．Yes, I did B．Yes, I have C. No, I haven’t D．No, never (　　)5.—Where is your father? —He ________ Dalian. A. have gone to B. has gone to C. have been to D. has been to (　　)6.[2014?广州]Miss Brown, we ________ cleaning our classroom. Can we go home now? A．finish B．finishing C．are finished D．have finished Ⅱ.用所给词的适当形式填空 1．Mum, can I watch TV now? I ___________ (finish) my homework. 2.The boys _________ (not read) the interesting books yet. Their mother will buy some for them. 3．—______ you _______ (hear) from your pen pal recently? —Yes, I have. I ______ (get) a letter from him yesterday. 4．—_______ you ever ________ (eat) the pizza? —No, I havent. 5．—_____ you _______(call) your mum yet? —Yes, I _____. I _____ _____(ca