Using LanguageⅠ第二课时 公开课

动词时态教案

藁城区第二中学

严小红

Teaching Aims:

掌握运用常见的十种时态

Important Points：十种时态的构成和用法

Difficult Points：

1)现在完成时和一般过去时的区别；

2）过去完成时和一般过去时的区别；

3）进行时态表示经常重复的动作或表示说话人的某种感情；

4）现在完成进行时的用法。

Teaching Methods: 1. Inductive Method

2. Group work Teaching Procedures: Step1. Lead-in

Fill in the blanks with the given words. 1) He______ (love) swimming in the lake. (love) 2) Once the rain______(stop), we will leave.(stops) 3) I have to walk upstairs, for the lift _______(break) down.(has broke) 4) By 1914 Einstein _______(gain) world fame. (had gained) 5) This is the first time that I ________ (hear) him say “thank you”. (have heard)

Step2 .Discussion

Ask the students to discussion the tense we learned before .

S1: 一般现在时

S2: 一般过去时

S3: 过去完成时

S4: 现在完成时

S5: 一般将来时

T: Conclude

现在以ask为例来复习一下各种时态

一般

完成

have/has asked had asked 进行

am/is/are asking were/was asking have will/shall 完成进行

have/has asking 过去

asked had been asking 将来

will /shall ask

w

ill/shall be will/shall have been been 现在

ask/asks

asked 过去should/would 将来

ask should/would have asked asking asking asking been asking should/would be should/would have （设计说明）几个时态练习题调动了学生的积极参与性，营造了和谐的学习氛围。学生“亲其师”而“信其道”使他们处于最佳学习状态，直奔本节课主题。

Step3: Read the papers carefully and answer the following

questions. 1)现在完成时和一般过去时的区别;

现在完成时由“have+过去分词”构成。其使用有两种情况：

1、现在完成时所表示的动作在说话之前已完成，而对现在有影响，句中没有具体的时间状语。

He has gone to Fuzhou./He has been to Fuzhou. 2、现在完成时所表示的动作开始于过去，持续到现在，也许还会持续下去。常用for和since表示一段时间的状语或so far,now,today,thisweek/year,already,yet,ever,just,before等. I have studied English for 5 years. He has studied English since2000. Now I have finished the work. 注意：表示短暂时间动作的词，如come,go,die,buy等的完成时不能与

for,since 等表示一段时间的词连用。

3、现在完成时还可用在时间和条件状语从句中，表示将来某时完成的动作。

I’ll go to your home when I have finished my Home-work. If it has stopped raining in the morning,we’ll go to the park.

一般过去时的用法

1、表示过去某时间发生的事、存在状态或过去反复发生的动作。(常接

ago/yesterday/last/inthe past/one day等) He arrived in Hangzhou yesterday. He worked in a factory in 1998. 2、表示过去经常发生的动作，也可用“used to ”和“would+动词原形”。

I used to smoke. During the vacation I would swim in the sea. 注意:Used to 表示过去常发生而现在再发生的动作或存

在的状态.另外“be used to+名词（动名词）”表示“习惯于……”

例：.I____ much of the book but I don’t find it interesting.

A.read

B.am reading

C.have read

D.have been reading.

分析：“ 阅读”这个动作说话之前已经完成，而且产生影响，因此正确答案为c

In 1949, tne People’s Republic of China______.

A. found

B. was founded

C. founds

D.was found

分析：因为有时间状语“In 1949”，所以正确答案为B 2）过去完成时和一般过去时的区别；

过去完成时的用法: 1.过去完成时由“had+过去分词”构成，过去完成时的动词表示过去某一时刻或某一动作之前完成的动作状态。句中常用by,before,until,when等词引导的时间状语。

By the end of last year we had learnt 2,000 English words. The mail had come when I left. 2、过去完成时的动词还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去

I hadn’t heard of him for some time before I met him . 例：When I got to the school, the first class_____.

A.had begun

B.began

C.is beginning

D.has begun

分析：“ 当我到达学校时”，发生在过去，上课应该在到达之前---过去的过去，因此选择A 3）进行时态表示经常重复的动作或表示说话人的某种感情

He is constantly complaining.

He is always helping others. 例：Nobody likes him, because he _______to curry favour with the boss.

A.is always trying

B. always tries

C.does always try

D.has always tried

分析：因为“他总是对老板曲意逢迎”,所以选择A

4）现在完成进行时的用法。

现在完成进行时由“have(has)+been+现在分词”构成，表示现在以前一直在进行的动作。

例：Tom_____in the library every night over the last three months. works

B.worked

C.has been working D.had been working

分析：“over the last three months”，表示动作从过去开始一直持续到现在而且可能还要持续下去，答案为C Step4 . Do some exercise and correct. Step5.

Discussion

The difference among the tense we have learnt. Step6:

Homework

板书设计（需要一直留在黑板上主板书）

1) He______ (love) swimming in the lake. (love) 2) Once the rain______(stop), we will leave.(stops) 3) I have to walk upstairs, for the lift _______(break) down.(has broke) 4) By 1914 Einstein _______(gain) world fame. (had gained) 5) This is the first time that I ___(hear) him say “thank you”. (have heard)