英语人教版八年级下册现在完成时语法综合复习(共3页)

1、精选优质文档-倾情为你奉上现在完成时教学设计 审坡中学 李忠杰教学目标： 1. 复习现在完成时的构成及其用法 2. 利用现在完成时解决实际问题 教学重难点： 1.如何判断动词要使用现在完成时以及与一般过去时的区别。 2.现在完成时的用法二，注意其中的动词必须用延续性动词。 教学步骤： Step 1: Revision by doing exercises 1. Listen! Who _(knock) at the door? 2. It is 12 oclock. The Greens _(have) lunch. 3. Where _ Tom _(c

2、ome) from? 4. Bob _(go) to school on foot every day. 5. I _(not do) my homework last night. 6.  Yesterday we _(go) to the beach for vacation. 7. _they _(lose) their way just now? 8. Please bring your umbrella. It_ (rain) outsideStep2: Step Step 2:Presentation Now this class

3、we will revise the tense “ the present continue tense”. First lets revise the usage of it, the first usage :表示过去发生的动作对现在造成的影响或结果。In order to help the students understand the grammar, tell them a oral song。这种用法的标志词有just是刚刚, before是以前, ever是曾经, never是从不, already是已经，用在肯定中, yet是已经还，用在否定句或疑问句中。例如： Tom ha

4、s just come back. Tom刚刚回来了。 I have already finished my homework.我已经完成我的作业。 Mary hasnt finished her homework yet. Mary还没完成她的作业。 In order to help the students understand the tense, and then let them do the following exercises: 1. My father _(not come) back yet. 2. I _ never _(be) to Beijing befor

5、e. 3. They_ just_(read) this novel. 4. _ you _(see) the film once? 5. Tom _already _(finish) his work. 6. I _ (lose) my key ,so I cant open the door. Step 3: go on revising the second usage : 表示从过去开始一直延续到现在的动作或状态。在此必须强调动词必须是延续性动词。这一点也是这一用法的重点和难点。常见的非延续动词有come, start/ begin, buy,

6、borrow, leave, die and so on. 在第二种用法中的标志词有for, since.即看到for或since时，动词必须转化成延续性动词，他们的转化关系如下：come 转化为be here 或be in; start/ begin 转化为be on; buy转化为 have; borrow 转化为keep; leave转化为 be away (from); die 转化为be dead。例如： 我买这辆自行车两年了。I have had the bike for two years. 他爷爷死了十年了。His grandpa has been dead for ten y

7、ears.电影上演十分钟了。The film has been on for ten minutes. 另外理解for或since的用法也很重要。Let the students understand “for” or “since” by doing exercises. Tom has been in Beijing _ ten years. Our country has changed a lot _1980. He has made many friends _ he came to this school. I have learned English _ seven years.

8、 通过以上练习题，他们会发现后for跟时间段；而since后跟时间点或从句。 注意：任何事物都不是一成不变的，通过上下文的理解来判断时态也很重要。 现在完成时和一般过去时的区别在于：尽管动作都是过去发生的，但如果和现在有关系要用现在完成时 。如：I have eaten lunch.我吃午饭的动作是过去发生的，但对现在的影响是我不饿了。I have lost my pen.钢笔丢了造成的影响是我没有钢笔了。Ilost my pen last night.只是强调昨晚发生丢钢笔这一动作。 Step 4: Exercises: (一)用所给词的适当形式填空。所以同学都要求掌握。 1. _

9、 you _(read) the book before? 2. Tom _ just _( come) back. 3.I _( have) an allergy since I _( be) six. 4.  My father _( be) much healthier since he _-( give) up smoking. 5. where is your father? He _( go) to work. 6.  _ you _( finish) your homework? Yes, I have. When _ you _(finish) it? Ten minutes ago. 7. How long _ you _(collect) sta