译林版八年级下册英语精品教学课件 Module 1 Unit 3 Online tours 第四课时 Grammar.pptVIP

1. I ________heard of that story before. A. don’t have B. not have C. have not D. not to have 2. She’ s never been to that factory,_________? A. is she B. was she C. does she D. has she 3. Have you made dumplings__________? No, I haven’t. A. just now B. yesterday C. ago D. before 4. Tom________ ill since last night. A. was B. is C. has been D. be 5. How long have you_ ________ Nanjing? A. gone to B. been to C .been in D. went to C D D C C Ⅳ 单选。 6. How many times has Jim _______that park? Twice. A. gone to B. been to C. been in D. went to 7. I’ve______ this dictionary for half a year. A. bought B. had C. lended D. borrowed 8. She won’t go to the cinema this evening because she ________the film before. A. has seen B. saw C. sees D. is seeing B B A Homework Try your best to learn more about the usage of has /have done. Then make conversations with the books’ name in this unit. Unit 3 Online Tours 第四课时 Grammar Simple past tense and present perfect tense 一般 过去时 构成 用法 常用 时间状语 动词的过去式 1. 表示过去某个时 间发生的动作或 存在的状态。 2. 表示过去经常或 反复发生的动作。 yesterday last night in 1990 two days ago … 现在完成时： 表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态。 结构： 主语+ have / has + 动词的过去分词 一般疑问句： have / has … ? Yes, I have. No, I haven’t. Yes, she has. No, she hasn’t. 现在完成时动词构成 have /has + v 过去分词 助动词 否定 haven’t hasn’t 疑问 Have you…? Has he…? 常与下列时间状语连用：just , already, yet, ever, never, before, several times He has read that book. (说明他现在知道那本书的内容。) He read that book last year. (只说明他去年读过那本书。 ) He has gone to America. (他现在不在此地， 到美国去了。) He went to America. (只说明他去过美国。) 现在完成时：表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态，强调的是现在的情况，不能和表示过去的时间状语连用（如：in 1990，last Sunday 等）。 一般过去时：一般过去时只表示过去的动作或状态，和现在不发生关系（即动作或状态在现在已经结束），它可以和表示过去的时间状语连用。 现在完成时与一般过去时的区别： have / has + V过去分词 I have waited for him for many times. 我等他等了好几次了。 I have been waiting