Unit 1 Discover useful structures(被动语态)ppt课件-（2022新）人教版高中英语选择性必修第四册.pptx

1、选必四选必四Unit1 被动语态被动语态写出下列动词的过去式与过去分词写出下列动词的过去式与过去分词1. build2. speak3. eat4. break5. give6. grow7. write8. think9. love10. water built built spoke spoken ate eaten broke broken gave given grew grown wrote written thought thought loved loved watered watered熟背课本P117-118不规则动词表 The Great Wall is visited b

2、y many people every year.Many people visit the Great Wall every year.主动语态主动语态被动语态被动语态Pepole often play footbal all over the world .Football is often playedby pepole all over the world.主动语态主动语态被动语态被动语态英语动词有两种语态：英语动词有两种语态： 主动语态主动语态 (the Active Voice) 被动语态被动语态(the Passive Voice)被动语态的相关概念被动语态的相关概念1. 语态语

3、态是动词的一种形式，表示主语和动词之间的关是动词的一种形式，表示主语和动词之间的关系。系。2. 英语动词有两种语态：英语动词有两种语态：主动语态主动语态和和被动语态被动语态。 主动语态主动语态动词的动词的主语是主语是动作的动作的执行者执行者， 而而被动语态被动语态动词的动词的主语是主语是动作的动作的承受者承受者。 指出句中的执行者和承受者。指出句中的执行者和承受者。 Some trees are planted by us every year.3. 被动语态是动词的一种特殊形式，一般说来，只有需被动语态是动词的一种特殊形式，一般说来，只有需要动作对象的要动作对象的及物动词及物动词才有被动语态

4、才有被动语态。承受者承受者执行者执行者We plant these trees.These trees are planted by us.主动句与被动句的转换主动句与被动句的转换主语主语宾语宾语主语主语宾语宾语把下列主动句转换成被动句1. We plant some trees every year. Some trees are planted by us every year. 2. Many people speak English. English is spoken by many people. 3. Everyone likes the story. The story is

5、liked by everyone. 被动语态构成被动语态构成一般现在时的被动语态：一般现在时的被动语态： 现以及物动词tell为例，列表如下：时态时态被动语态的构成被动语态的构成一般式一般式一般现在时一般现在时be(am，is，are)told一般过去时一般过去时be (was，were)told一般将来时一般将来时shall/will be told过去将来时过去将来时should/would be told进行式进行式现在进行时现在进行时be (am，is，are)being told过去进行时过去进行时be (was，were)being told完成式完成式现在完成时现在完成时hav

6、e/has been told过去完成时过去完成时had been told肯定句：肯定句： 否定句：否定句：一般疑问句：一般疑问句： 回答：回答：特殊疑问句：特殊疑问句：Children love these songs. are loved by children.These songs are not loved by children.Are these songs loved by children.Yes, they are./ No, they arent. are loved by children?特殊疑问词+be+过去分词+(by)?主语+be not+过去分词+(by)B

7、e+主语+过去分词+(by)?主语+be +过去分词+(by)一般现在时的被动语态一般现在时的被动语态肯定句： 主语主语+am/is/are + done + by+动作的执行者。动作的执行者。否定句： 主语主语+am/is/are + not + done + by+动作的执动作的执行者。行者。一般疑问句： Am/Is/Are +主语主语+done + by+动作的执行者动作的执行者?特殊疑问句： 特殊疑问词特殊疑问词+ am/is/are +主语主语+done + by+动作动作的执行者的执行者? My favourite funny story in The Adventures of

8、Tom Sawyer is when Tom (1) _ (tell) by his aunt to paint the gate white. The work is a punishment because he missed school one day. Of course, he does not want to do any work. At first, Tom (2) _ (watch) by his friends and (3) _ (laugh at), so he feels quite bad. is watched laughed at is told2But so

9、on he turns the situation round, and he (4) _ (help) by his friends instead. Tom says that he enjoys painting the gate white, and his friends want to try. He asks each friend to give him something valuable, and in return they (5) _ (allow) to do some of Toms work! is helped are allowedTom: Why (1) _

10、 popular books _ (make) into films? Jack: Oh, because the stories (2) _ already _ (know) by lots of people, so the films will become popular as well.Tom: But why (3) _ the stories sometimes _ (change) in films?3are made areare changed knownJack: Because films and books are different. Some people in

11、the book are not included in the film, but others are more important than they are in the book.Tom: But that doesnt happen in historical films?Jack: Yes, it does. Sometimes even the facts about history (4) _ (change).Tom: But why (5) _ facts _ (rewrite)?Jack: Because films dont always try to teach history, but to tell a good story! are changed are rewritten答案：1.is constructed2.be chosen3.had been trapped答案：4.was impressed5.be taught6.be made7.is considered答案：8reflected9.will be made10.was watching