Learning about Language优质课教案内容

人教版高中英语必修2 Unit 3 Computers Learning about Language(教学设计) 威县一中 杨书娜

Step1 Learning aims

1. To know the structure of the present perfect passive voice.

2. To learn the usages of the present perfect passive voice.

3. To become interested in grammar learning and try to use them freely. Step2 Leading-in

Observe the following sentences, and find something in common.

(1)Over time I have been changed quite a lot.

(2)That book has been translated into at least 12 foreign languages.

They are the Present Perfect Passive Voice（现

在

完

成

时

的

被

动

语

态

）

Step3 Explainations 现

在

完

成

时

的

被

动

语

态

Ⅰ.概念(The concept)：

1. 说话时已经完成

的动作或出现的结果。

2. 主语是行为动作的承受者。 【注意】 1. 过去分词前有两个助动词have/has和been。

2. 必须表示被动。

I have been told (tell) about it many times．

The bridge has just been built (build)．

Ⅱ.句型(the sentence patterns)：

1. 现在完成时被动语态肯定句句型：

These trees have been watered(water) lately. 2. 现在完成时被动语态否定句句型：主语+ have/has +not+ been+done

The task has not been finished (finish) yet. Many worker has not been trained（train) in the company. 3. 现在完成时被动语态一般疑问句句型：

Has a new computer been bought ? Have they been sent abroad to study English? 4. 现在完成时被动语态特殊疑问句句型：

Where has the car been repaired? Who have been helped by the new computer? How many buildings have been built in this school? Ⅲ. 用法(The usages): 现在完成时的被动语态同他的主动语态一样， 强调过去的动作对现在造成的影响或后果already,yet, just, never, recently 等副词 (常放在have或has之后)连用。 The work has already been completed. 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。 My car has been repaired for two days. The house has been painted since the family moved out. 3. 用在条件状语从句中，表示将来某时已经完成的动作. We will start as soon as the work has been finished. 即学即练1.The important problem __has been discussed_______________ (discuss) for nearly two weeks. 2.How long has the machine

_ has been used__________ (use)? 注意：1. 只有及物动词才有被动语态,不及物动词(词组)没有

被动语态。

例如: happen, take place, die, appear, disappear, fail, remain, lie, last, sit, stand, break out, come true, belong to等。

What ____ has happened__________(happen) to your brother? 2. 但许多不及物动词加介词或副词构成的动词短

语，相当于及物

动词，也可以有被动语态。但动

词短语是一个不可分割的整体，变为被动语态时, 不可丢掉构成短语的介词或副词。 The child ____ has been taken__________ (take) good care of by his grandma all these years. A notice ___ has been put________(put) up on the wall. 3. 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。

My brother has had(不能用has bought) this bike for almost four years. How long has this book been bought? ( F ) How long ago was this book bought? ( T ) Class exer1. People play football all over the world. Football ____is played______ all over the world by people. 2. Did they ask him some questions? ___Was he asked__________ any questions by them? cises

Step4 翻译1.Many houses have been built in the past ten years. 2.How long has the project been carried out? 3.The problem has already been solved. 4.The ink has not been removed from the clothes. Step5 Homework 1.Summary the rules of this grammar. 2.Finish off Exercise. 1 & 2 on Page 57.