人教版高中英语必修二 《The Internet》Period Three PPT

《The Internet》Period Three PPT

第一部分内容：PART 1  语法导学

语法感知

感知以下句子，完成方框下的小题

1.Much has been written about the wonders of the World Wide Web.

2.People’s lives have been changed by online communities and social networks.

3.Many people have been helped by the club.

4.Jan’s life has been greatly improved by the Internet.

5.A kind of new PC has been built with more functions.

1.以上句子中所使用的时态和语态是 ________________________。

2.现在完成时的被动语态的构成为：________________________。

语法精析

现在完成时的被动语态表示到现在为止某事已经被完成或被做。这种语法项目既要表示现在已经完成又要表示被动的含义，因此很多同学在具体运用中容易顾此失彼，难以把握。

运用现在完成时的被动语态时应掌握以下几个问题：

一、现在完成时的被动语态的常用句式

肯定式  主语＋have/has been done...

否定式  主语＋have/has not been done...

一般疑问式  Have/Has＋主语＋been done...？

特殊疑问式  疑问词＋have/has＋主语＋been done...？

He has been admitted to the club.

他已被接纳为俱乐部成员了。

Tom’s novel has not been published.

汤姆的小说还没有被出版。

Has his bike been repaired?

他的自行车修好了吗？

Who has been invited?

谁受到了邀请？

二、现在完成时的被动语态的用法

1.表示被动的动作在说话之前已经完成，强调过去的动作对现在造成的影响或产生的结果，通常与already，yet，never，recently等副词及时间状语so far，by now，up till/to now，since等连用。

The room has already been cleaned.

这个房间已经被打扫干净了。(现在已经不用打扫房间了)

2.表示一个被动的动作或状态从过去开始一直持续到现在，并可能继续持续下去，常与for或since等引出的时间状语(从句)连用，或用于how long引出的句子中。

The machine has been repaired for two hours.

这台机器已经被修了两个小时了。(可能还会继续被修)

3.用在条件状语从句中，表示将来某时已经完成的动作。

You shouldn’t leave school before your homework has been finished.

在你的作业没完成之前你不应该离开学校。

三、使用现在完成时的被动语态要注意6点问题

1.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的情况有联系。

The park was opened to the public last year.

去年这个公园向公众开放。(说明动作发生于过去)

The park has been opened to the public.

这个公园已向公众开放。(说明动作发生于过去，但对现在有影响，即现在公园已经向公众开放了)

2.非延续性动词，如borrow，finish，begin，start，buy，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，则要改换动词或时态。

The work was finished two weeks ago.这项工作于两周前被完成。

The work has been finished.这项工作已经被完成。

3.短语动词是一个不可分割的整体，在被动语态中要保持完整性，其中的介词或副词不可省略。

It is said that the problem has been looked into.据说已经调查了这个问题。

... ... ...

The Internet PPT，第二部分内容：PART 2  达标检测

Ⅰ.用现在完成时的被动语态改写句子

1.Jack’s boss has always praised him for his devotion to work.

→Jack ___________________________________ by his boss for his devotion to work.

2.They have found a good place to build a temple in the village.

→A good place_____________________to build a temple in the village.

3.We haven’t yet decided how to solve that difficult technological problem.

→How to solve that difficult technological problem_____________________yet.

4.I have asked her to help you.

→She_____________________to help you.

5.He has given the child some interesting books.

→The child_____________________some interesting books.

→Some interesting books_____________________the child.

Ⅱ.语法填空(用所给词的正确时态、语态填空)

Li Ming：Hi，Lin Tao.How nice to see you on the first day of the new term!

Lin Tao：Yes.Nice to see you again.

Li Ming：I know that your parents 6._____________________(work) in Yushu for years.Can you tell me something there after the earthquake?

Lin Tao：Of course.Since the earthquake 7.______________ (happen)，many soldiers 8._____________________(send) there，and many kinds of supplies(物资供应) 9._____________________(carry) there from all over the country.Now，most people there  10. _____________________(live) a happy life again.

Li Ming：How about the schools there?

Lin Tao：Several new schools 11. ______________ (set) up and also some schools which 12. ______________ (damage) in the earthquake 13._______________(rebuild).

So all the students can go back to school to study now.

Li Ming：That’s wonderful.I’m sure their life will be better and better.When will your parents come back?

Lin Tao：They will be back next month.

关键词：人教版高中英语必修二PPT课件免费下载，The Internet PPT下载，.PPT格式；