Learning about Languageppt课件课堂实录

一般将来时被动语态

教学目标

掌握一般将来时的被动语态

教学重难点

一般将来时被动的应用

教学设备

多媒体

教学过程

Step I复习

构成形式:

Will/shall +be + V过去分词

shall 用于第一人称: I /we , will 用于任何人称

be going to be +V过去分词

be to be +V过去分词

The students of class one will clean the playground.

The playground will be cleaned by the students of class one.

We are going to hold a meeting on Saturday afternoon.

A meeting is going to be held (by us) on Saturday afternoon.

The twins are to repair the machine tomorrow.

The host will give the winner a computer as the prize. 获胜者将被赠予一台电脑作为奖励. The winner will be given a computer as the prize (by the host). 一台电脑将被赠给获胜者作为奖励. A computer will be given (by the host) to the winner as the prize.

The machine is to be repaired (by the twins) tomorrow.

Step 2 Lead-in Are you familiar with these computers?

Can you call them?

the underlined parts have something in common?the underlined parts

have something in common? 1.

A calculating machine has been replaced with the laptop.

2.

The buildings have been destroyed in an earthquake.

3. The sports meeting has already been held Step 3现在完成时的被动语态的用法

1.表示一个被动的动作发生在说话之前,强调对现在造成的影响和结果.

The door has been locked.

2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与for 或since引导的时间状语连用,或用于How long...?句型中.

The important problem has been discussed for nearly two weeks.

How long has the machine been used?

现在完成时的标志:recently /already/yet for+一段时间 /since+时间点

句型

He has been sent to study the new technology in the company.

否定句:

He has not been sent to study the new technology in the company.

一般疑问句:

Has he been sent to study the new technology in the company?

特殊疑问句:

Where has he been sent to study the new technology Great changes ________ in the city , and a lot of factories ________.

A. have been taken place ; have been set up

B. have taken place; have been set up

C. have taken place; have set up

D. were taken place; were set up correct mistakes 1.They not have finished the homework which should be finished yesterday.

2.Does the new program have been developed for the robot?

3.How many have teachers been interviewed for the job?

Step 4现在完成时的被动语态应注意的几个问题

1.请注意现在完成时的被动语态的两个助动词,即have/has和been,两者缺一不可。

2. 请注意与一般过去时的被动语态的区别。一般过去时的被动语态所表示的动作或状态与现在的情况没有联系,而现在完成时的被动语态则强调与现在情况的联系. The bridge was built last year.

这桥是去年建成的。

The bridge has been built. 这桥已经建好了。

Step 4 巩固练习 1.－How many times______ not to play with fire? －I’m sorry. I’ll never do that again.

A. do you tell B. had you told C. are you told D. have you been told 2.The fire _______ to the fifth floor. _______ all the people _______? A. has got; Have; been saved B. has been got; Have; saved C. has got; Do; save D. has got; Have; saved 3.Do you know the thief ______ by the police?

A.

has caught B. has been catching C. was caught D. has been caught 3.请注意一些特殊动词,如borrow, finish, begin, buy, start, return, marry, open, join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思,则需改换动词或时态。如: [误] How long has this book been bought? [正] How long ago was this book bought? 但这类动词的否定式可表示动作的持续过程,具有连续性,因而可与since或for引导的时间状语连用。如: No books have been bought since last week. 自上周以来,没有人来买过书。

1. ---How long _____ at this job? --- Since 1990. A. were you employed B. have you been employed C. had you been employed D. will you be employed 2.When and where to go for the on-salary holiday ___yet. (2003 上海春季) A. are not decided B. have not been decided C. is not being decided D. has not been decided 3. All the preparations for the task___, and we’re ready to start. (2000 北京春季) A.

completed B. complete C. had been completed D. have been completed