初中英语-现在完成时

初中英语 现在完成时(学生)(3 页)Good is good, but better carries it.精益求精，善益求善。 Present Perfect Tense I have just received a letter from my brother, Tim. He is in Australia. He has been there for six months. Tim is an engineer. He is working for a big firm and he has already visited a great number of different places in Australia. He has just bought an Australian car and has gone to Alice springs, a small town in the centre of Australia. He will soon visit Darwin. From there, he will fly to Perth. My brother has never been abroad before, so he is fending this trip very exciting. Present Perfect Tense 1. 现在完成时的构成 2. 现在完成时的用法 （1）表示动作发生在过去某个不确定的时间，但对现在留下了某种影响和结果。 -Have you had lunch yet? -Yes, I have. I've just had it. （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。 He has taught here since 1981 I haven't seen her for four years. 3. 现在完成时与一般过去时的区别I saw this film yesterday. I have seen this film. She has returned from Paris. She returned yesterday. He has been in the club for three years. He joined the League three years ago. 一般过去时的时间状语： 现在完成时的时间状语： Exercises 选择填空1. A. 用 already 或 yet 1) Have they taken down the old pictures ______? No, not ___________. 2) Most of us have finished our compositions ________ 3) He said he hadn’t visited the exhibition ________. B.用 since 或 for 1) We have learned five lessons ______ the beginning of this term. 2) Mrs. Liao has been in hospital ______last week. 3) I have stayed at my aunt’s _____two weeks. C. 用 have gone 或 have been 1) Where are the boy students ? They _____ to the school factory. 2) Is your father in ? No, he ____ to Shenzhen. _______...