牛津版8B现在完成时回顾..docVIP

个性化教学设计方案 教师姓名 上课日期 2014.0 学生姓名 年级 8 学科 English 课 题 教学重难点 Learning aims: 1.Time expressions with the present perfect tense. 2.The verbs with ‘for’,’since’ and ‘ago’ in present perfect tense. 3.The usage of ’have (has) been’ and ‘have (has) gone’ 4.To express a continuous state with present perfect tense. 5.The differences between the simple past tense and the present perfect tense . 一、Present perfect tense We use the present perfect tense to talk about things that started in the past and continue to the present. We also use the present perfect tense to talk about things that happened in the past and have connection with the present. We also use the present perfect tense to talk about how many times an action has happened till now . e.g: Eddie has lived with Millie since he was born. Eddie has eaten my food. Eddie has read the story many times. Time expressions with the present perfect tense. We can use some typical time expressions with the present perfect tense. already, just, ever and never usually come after have or has, while yet and recently come at the end of a sentence. However, sometimes already can also be placed at the end of a sentence.而for +一段时间, since+过去的时间点, these years, so far, in the past/last …years等 注意：当在肯定陈述句中含有already或just 时，在转换成否定句或疑问句时，要把句中的already 或just 去掉，在句末加上yet. The usage of ‘since’ 1. Since+ 过去某个时间（此时 since充当介词） He has been in this school since 1999. 2. Since+一段时间+ ago （此时 since充当介词） She has known Susan since seven years ago. 3. Since+ 从句 （此时 since充当连词）（此时主句使用完成时，从句则要使用过去时） Eg: I have lived here since I was born. 4.当主句的谓语动词为be或seem时，则主句要采用一般现在时,从句仍使用过去时。 Eg: It’s a long time since we left school. 注意：如果动词是非延续性的，则不可以和since以及for连用 The usage of ’have (has) been’ and ‘have (has) gone’ We use ‘have (has) been’ to express the idea that sb went to some place and has already come back. e.g: I have been to South Hill many times. We use ‘have (has) gone to express the idea that sb went to some place an