九年级英语上册 Module 4 Great Inventions Unit 3 Language in use精品教案 外研版

Module 4 Great Inventions Unit 3 Language practicePart I: RevisionLanguage practice现在完成时的被动语态： have/has（not） been +过去分词Paper and printing have been used for ages.The battery hasn’t been changed for a couple of months.Has it been published yet?情态动词的被动语态：情态动词（not）+ be +过去分词Information can be kept on CD-ROMs.Books could only be produced one at a time.Can books be replaced by computers?Conclusion (I)当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者时，或者只需强调动作的承受者时，要用被动语态。

被动语态：主语是动作的承受者。

被动语态的构成：be +动词的过去分词一般现在时—— am／is ／ are +动词的过去分词一般过去时—— was／were +动词的过去分词情态动词—— aux.v. (must／can／could／may…)+ be +动词的过去分词现在进行时—— be(am、is、are)+being +动词的过去分词一般将来时—— will be／be going to be +动词的过去分词现在完成时—— have／has +been+动词的过去分词主动语态如何改成被动语态？1. 主动语态的宾语改成被动语态的主语。

2. 主动语态的谓语动词改成被动语态的谓语动词。

do----be done3. 注意保持时态和人称的一致。

4. 带双宾的谓语动词有两种改法。

当把直接宾语改成主语时，谓语动词后必须加适当的介词: to / for. 如：give-- be given to 此类动词还有：pass show send…再如：buy--- be bought for此类动词还有：make draw cook mend…5. 一些动词不定式在主动语态中省略to作宾语补足语，改成被动语态时，to必须还原。

注:1. 不及物动词（vi.)不用被动语态。

如:happen、take place 、appeardisappear…没有被动形式。

**几种特殊结构1.My uncle gave me a gift on my birthday．----• I was given a gift on my birthday．• A gift was given to me on my birthday.2.We often hear him play the guitar．•He is often heard to play the guitar•注意：see, watch, hear, notice, feel, make, listen to, look at等动词/短语后作宾语补语的不定式都不带to；但改成被动语态后必须带to。

Exercises1. Complete the sentences with the correct form of the words.1. I think one day books may ___________(place) completely.2. My bike _____________(leave) at school, so I have to take the bus to school today.3. The battery ___________________(charge) yet. How can I use my recorder.4. Paper should not _________(throw) away.5. Books and other material can _____________(borrow) from the library.6. I’ve bought a second-hand MP3 player—and about 1,000 songs have ___________ (download) onto it!7. Has the computer ________________(repair) yet? I need to write my article with it.8. What have ________________(turn on)?The radio.2. Work in pairs: Complete the quiz questions and choose the correct answer.1.Who/ pyramids/ build?---- Who were the pyramids built by?a) The Egyptians b) The Ancient Greeks c) The Romans2. What/ use/ to make paper since the 19th century?a) Wood b) Silk c) Cotton3. Where/ the story of Romeo and Juliet / set?a) In New York b) In Athens c) In London4. Where/ the world’s oldest book printed on paper/ discover?a) In India b) In China c) In Egypt5. How long/ computers/ use?a) For less than 50 years. b) For 50 years c) For more than 503. Make questions and write answers.What/ shouldn’t /do/with paper? (waste)-------What shouldn’t be done with paper?--It shouldn’t be wasted.1.what/can/use/to make paper? (many things)2.What/ might/use/to replace books one day? (computers)3.how/must/printers/keep? (in good conditions)4.Where/can/music/keep? (on MP3 players)4. Look at the pictures and describe how the place has changed. Use these words:add, change, open, paint, put, turn on, take away,5. Complete the passage with the correct form of the words.call, clean, develop, introduce, invent, produce, spread, use, writeFrom about 500 BC, pens __________ for writing. The feathers of large birds ___________ and dried. The point of each feather was sharpened. Then people used them to write with ink. Many famous works, such as Shakespeare’s plays, ___________ with these pens. Then in the 18th century, A pen with a steel writing point ____________ Only a few words could __________, however, before the writer had to fill the pen with ink again. Many years later, the fountain pen ____________ from these early pens. In 1950, a European called Laszlo Biro invented the ballpoint pen. The popularity of writing _________quickly with the ___________ of the ballpoint pen. Even today, ballpoint pen, or Biros, as they _____________, are much less expensive, compared with the fountain pens.6--7 Listening Practice8. Complete the sentences with the phrases in the box.by hand, for ages , from now on, I wonder, rather than1. Could you imagine a digital image of Yao Ming on the wall _____________ a poster?2. Things made _____________ are usually more expensive than those produced in factories.3. ____________ how old books are actually downloaded onto computers…4. I haven’t seen my best friend________________!5. We’re using too much paper. ____________, I’m going to read all my magazines online. Around the worldE-bookModule taskDiscuss how to improve inventionsHomework:Finish off the workbook exercises。