课件23张PPT。Unit 4 Amazing Science Topic 1 When was it invented ?Section A 黑龙江省双城市第二中学 高艳玲is spoken byShe speaks Chinese. is spoken by He speaks English.EnglishEnglish.Hehim.ChineseChinese.Sheher. 被动语态(Passive Voice ) be + done 主动语态： 主语 + 动词 + 宾语
被动语态： 主语 + be + 过去分词 + by + 宾语
Many people use computers.Computers _____ ________
by _______ _________.The workers plant trees in the garden.Trees _____ _______ in the
garden ____ the workers.are usedmany peopleare plantedbyCan you try ？Exercise 1. Trees __________ (water) in our school every
three days.
2. The zoo ___________ (visit) by lots of children
on weekends.
3. A Journey to West ________ (show) on CCTV
every summer.
4.On Christmas Day, children wake up early
and can’t wait ______ (open) the boxes of
presents.
5. We’ll have a chance _____ (see) the flower
show this weekend.
to openis shownare wateredto seeis visitedA: What’s the lock made of?
B: It’s made of metal.
A: What’s it used for?
B: It’s used for locking the door. n.锁 v.（用锁）锁上，被锁住2 Follow the example to make up similar conversations. lock/metalA: What’s the paper made from?
B: It’s made from wood.
A: What’s it used for?
B: It’s used for writing on.paper/woodcomputer desk /woodchopsticks/bamboosweater /cottonwatch/metalbe made of 由某种物质做成(看得出原材料，物理过程)
be made from 由某种物质制成(看不出原材料，化学过程)
be made up of 由几部分组成
be made in 在某地/某时制造
be made by 由某人制造
be made into 被制成12Language pointsA. What’s it made of?
B. It’s made of metal.
A. Do you know what it is used for?
B. It’s used for sending satellites
or spaceships into space.Wow !A model rocket ! 1a Listen, look and say.Why is Jane unhappy?Because Jane was not allowed to play computer games last night. allow v. 允许
1. allow sb. to do sth.
允许某人做某事
2. allow doing sth.
允许做某事
3. be allowed to do sth.
被允许做某事
聚焦一般过去时的被动语态
结构:助动词(was/were)+及物动词的过去分词
1.肯定句式 ：主语+was /were+v.-ed
2.否定句式 ：主语+was/were + not+v.-ed
3.一般疑问句式： Was /Were+主语+vt.-ed
4.特殊疑问句式：疑问词W/H+was/were+主语+v.-ed
E.g. An e-mail was sent to her friend by Jane yesterday.
An e-mail wasn’t sent to her friend by Jane yesterday.
Was an e-mail sent to her friend by Jane yesterday?
Who was the e-mail sent to by Jane yesterday?Let’s sum up together.1b Listen to 1a and mark T (True) or F (False).Jane is unhappy because she was not allowed to go to a party last night.( )
Kangkang’s father made a model rocket for him. ( )
The rocket is made of metal. ( )
A rocket is used for sending satellites or spaceships into space. ( )FFTT1a Listen , look and say 1c Read 1a and answer the following questions. 1. Why did Kankang ask Jane not to spend too much time on computer games ? It’s bad for her health if she spends too much time on them.too tiredheadachesore eyes2. What’s a rocket used for?
It’s used for sending satellites or spaceships into space .
be used for 被用来做
be used to do 被用来做
be used as 被用作
used to do sth. 过去常做
be used to doing sth. 习惯于做3. Who taught Kangkang some knowledge about spaceships?
Mr. Brown.
4. What’s Kangkang’s dream?
He wishes he could go into space some day. some day----某一天，总有一天(将来)
e.g. I wish I could have my own house some day.I hope his dream will come true . come true----变成真的,实现
realize/achieve---make sth. come true3a A. Listen to the conversations and number the following pictures.2313a B. Listen again and complete the table . plasticplasticmetal and plasticstudy, work and play communicatetake photosaround 19851973around 1975JapanAmericaAmerica3b Work in pairs. Ask and answer questions based on the table in 3a with passive voice. A: What is a laptop made of?
B: It is made of plastic.
A: What’s it used for?
B: It is used for studying.
A: When and where was it developed?
B: It was developed in Japan in 1985.Example:Focus on the meaning in communication. Don’t be afraid of making mistakes. Change the following sentences.
1.My mother allows me to use her cellphone.(改为被动语态)
I _____ ______ _____ use my mother’s cellphone.
2.A rocket is used for launching satellites and spaceships.
(就画线部分提问)
____ ___ a rocket ___ ___?
3.The digital camera was invented in 1975. (就划线部分提问)
____ ____ the digital camera _______ ?
4. Maybe he is an inventor. (改为同义句)
He ____ ____ an inventor.
am allowed to What isused forWhen was inventedmay be ExercisesSummaryWe learn: 1.Some words: lock, rocket, metal, satellite,
spaceship
2. Some phrases: be made of, be used of,
some day, come true
3. Some sentences:
(1) I wish I could go into space some day.
(2) I hope your dream will come true.
(3) -What is a rocket used for?
-It’s used for sending satellites or
spaceships into space.
We can: Use the passive voice.
AssignmentRead 1a.
Memorize the useful expressions and key sentences that we learn today.
Finish Section A in your workbook.
Preview Section B.Thank You !课件内容介绍和使用说明
本课件是为仁爱英语九年级上学期Unit 4 Topic1 Section A编写的教学课件， 这是第四单元第一话题的第一课时。本课课型为听说课。本课通过Kangkang和Jane谈论关于发明物这一话题，学习相关的单词和短语，并让学生在对话中学习、掌握被动语态的用法。通过本课的学习，能够激发学生热爱科学的热情。为有效地实现本课教学目标，本课件从学生实际出发，对教材进行了必要的整合，教学设计直观生动。基于本节课主要活动为1a 和2，因此对教学设计作如下安排：
Getting ready for learning:
复习一般现在时的被动语态。（幻灯片 2、3、4）
Pre-listening：
呈现2中的图片，引出本节课主要句型的学习。（幻灯片 5、6）
用2中的图片，操练句型。并进行知识拓展。（幻灯片7、8）
呈现1a图片，用上面所学习的句型，引出1a对话。（幻灯片9）
While-listening：
听1a对话，回答问题。（幻灯片10）
讲解一般过去时被动语态。（幻灯片11）
再听1a对话，完成1b。（幻灯片12）
Post–listening：
播放1a动画，进一步理解对话内容。（幻灯片13）
再读一遍对话，完成1c，同时讲解主要语言点。（幻灯片14、15、16）
Practice：
听录音，完成3a。（幻灯片17、18）
两人一组，完成3b。（幻灯片19）
完成相关练习。（幻灯片20）
Assigning homework:
①总结本堂课的新单词、短语和语法项目，让学生能把握整堂课的重点。(幻灯片21)
②设计了书面显性作业及课文朗读、对话练习、预习新课等隐性作业。(幻灯片22 )
