现在完成时讲解ppt

1、11主讲人：谢嘉丽 现在完成时The Present Perfect Tense现在完成时考频图现在完成时考频图总结上海2015年十几个区的中考一模试卷语法部分之后，主要考查的时态有完成时、将来时、进行时、过去时和一般现在时。在考查到的这5种时态中，完成时占了很大的比例，也就是说每张卷子的24道时态题中至少都有一道题是考查完成时，完成时的基本结构是have/has+done（过去分词），常用的完成时分成三小类：现在完成时、现在完成进行时和过去完成时，整理上海2015年十几个区的中考一模试卷，发现一共有9个区的一模考查了现在完成时，2个区考查了过去完成时，没有涉及到现在完成进行时，所以在这里我主

2、要强调说明各区语法题的宠儿-现在完成时如何识别现在完成时如何识别现在完成时解题技巧和步骤总结和练习学习思路 现在完成时的结构肯定句：主语 +have/has +过去分词 e.g. I have not crossed some sort of line.否定句：主语+have/has+not+过去分词 e.g. I have crossed some sort of line.如何识别现在完成时1.现在完成时用来表示从过去一直持续到现在的动作或状态。 Eg: Mary _D_ in mat housing estate since she came back to Shanghai in 20

3、05. (松江一模) A. is living B. had lived C. would lived D. has lived2.现在完成时不仅表示动作在说话之前已经完成，而且强调对现在的影响和联系，动作本身对现在造成一定影响。也就是说动作或状态发生在过去但他的影响现在还存在。Eg：Our monitor _C_ to bring the key, so we cant enter the classroom right now. (虹口一模)A. forgets B. forgot C. has forgot D. had forgot(含义是：刚刚我们进不了门)Michael has b

4、een ill. （含义是：现在仍然很虚弱）He has returned from abroad. （含义是：现在已在此地） 如何判断现在完成时如何判断现在完成时1.找标志词 2.联系上下文语境，看过去发生的事情是否对现在造成影响Eg：Our monitor _C_ to bring the key, so we cant enter the classroom right now. (虹口一模)A. forgets B. forgot C. has forgot D. had forgotalready , yet , just, before, so far, in the past f

5、ew years, since +时间点, for +时间段 Eg：- Am I late? （普陀一模）- Dont worry. Your favourite broadcast _D_ yet.A. doesnt start B. didnt start C. wont start D. hasnt started 3.现在完成时用来表示从过去一直持续到现在的动作或状态。 Eg: Mary _D_ in mat housing estate since she came back to Shanghai in 2005. (松江一模) A. is living B. had lived

6、C. would lived D. has lived与一般过去时的区别一般过去时：有表示过去时间点的提示词eg: Starbucks(星巴克)_B_ as a small coffee shop in a market in Seattle in 1971. (虹口一模) A. start B. started C. has started D. had started 本题中有明显的过去时间状语in 1971，所以用过去时，做题需要看清楚题目时间范畴。现在完成时：有already, yet, sometimes, always, often, before, lately, recentl

7、y, once, twice, ever, never等提示词Eg: -Have you ever been to New York city? （黄浦一模）-Yes, I _C_ there twice. Its a modern city.A. was B. will go C. have been D. had been总结1.在完成时态中，当句中出现一段时间的状语（since/for）时，句中谓语动词不能用终止性动词。 2.现在完成时有完成用法和未完成用法，要注意区分（1）完成用法：表示过去发生的某一动作对现在造成的影响。要充分理解其与过去的动作有关，但强调的是对现在的影响或结果，表明

8、了与现在的关系。（2） 未完成用法：表示过去已经开始，持续到现在的动作或状态。在这一用法中，动词描述的动作必须是具有可延续性的，即延续（持续）性动词和状态动词。 Up to now，Jack has worked in Beijing for 2 years. 到目前为止，杰克在北京工作3. 注意区分现在完成时和过去时：现在完成时不能和表示过去的时间状语连用，如yesterday, last year, in 1976, two days ago, just now, when I came in，但可以和already, yet, sometimes, always, often, before, lately, recently, once, twice, ever, never等连用。 Where are you going for your holiday? Well, we _yet. (10,28)A havent decided B hadnt decidedC dont decid