Unit9 When was it invented? 它是什么时候（被）发明的？
一.教学内容：
Hello, boys and girls. Nice to meet you again. Today we’re going to study Unit 9-When was it invented? 它是什么时候（被）发明的？In this unit we’ll learn a new grammar-passive voice(被动语态) .In the same time we’ll talk about the history of some inventions. Now let’s begin our class.
二. 教学目标：
1. 学习被动语态，掌握其结构及用法；
2. 了解诸多发明的历史，从小立志长大后做一个有利于人类的发明家。
三. 词汇：
单词：
salt, sweet, sour, crispy, pleasant, potato chips, slipper, leaf, fire, scoop, light bulb, microwave oven, abacus, camera, beverage
短语：
be invented by sb. 由某人发明的 be invented in sw. 在某处发明的
be used for 用来做… in the end最后；终于
be mistake 错误地 by accident 偶然；意外地
not…until…太…，以至于 according to 根据
in this way 用这种方法（方式）
重点句型：
When was the car invented?
小汽车是什么发明的？
It was invented in 1885.
它是在1885年发明的。
Who were they invented by?
它们是由谁发明的？
They were invented by Julie Thompson.
它们是由Julie Thompson 发明的。
What are they used for?
它们是用来做什么的？
They’re used for seeing in the dark.
它们是用来在黑暗处看东西的。
Tea wasn’t brought to the western world until 1610.
茶是1610年才被带到西方（世界）的。
四. 语法：
被动语态：被动语态表示主语是句中的动词即谓语动词的承受者，被动语态常常用by短语来说明动作的执行者，如，These books were all written by Lu Xun.（这些书都是鲁讯写的）。当不强调动作执行者时，by短语就可以省略。由于不及物动词不能带宾语，因此它没有被动语态。
被动语态的结构：动词的被动语态形式由助动词be + 及物动词的过去分词(done)构成。助动词be 必须和主语的人称和数一致，并且表示出时态、语气等。
被动语态的用法：
1. 只知道动作的承受者，不知道动作的执行者。
The watch was passed up to the woman.
手表传给了那位妇女。
2. 没有必要指出动作的执行者。
The classroom is cleaned every day.
教室每天都打扫。
3. 有必要强调或突出动作的承受者。
Thanks. My pen has been found.
谢谢你。我的钢笔已经找到了。
4. 有些动作习惯上用被动语态。
His father was born in 1962.
他爸爸生于1962年。
五. 具体内容：
Section A:
1. I think the telephone was invented before ( after ) the car.
我认为电话是在汽车之前（之后）发明的。
2. It’s used for scooping really cold ice cream.
它是用来舀特别凉的冰淇淋用的。
be used + 介词结构的几种常见用法：
1）be used for 意为“被作为……使用”，“用来作……”，“为了……而使用”。
Bamboo can be used for carrying water.
竹子可以用来运水。
This cup is used for watching.这个杯子是用来观赏的。
2）be used as 的意思是“作为……使用”，“用作……”。
This bag can be used as a pencil-box. 这个袋子可以当作铅笔盒来使用。
3）be used by 意为“被……使用”。
English is widely spoken by travelers and many others in the world.
世界上旅游者和其他的许多人都讲英语。
4）be used to doing 意为“习惯于做某事”。
I am used to reading in the morning.
我习惯早晨看书。
Section B---3a:
1. 题目 Who invented tea? 谁发明了茶？
请比较：Who was tea invented by? 茶是由谁发明的？
2. Although tea wasn’t brought to the western world until 1610,…
not…until… 的意思是“直到……，才……。”
We didn’t finish our work until midnight yesterday.
我们昨天午夜才结束工作。
Mr Chen won’t come here to see us until he returns to China.
直到陈先生回到中国才能来看我们。
3. discover, find out 和invent的区别。
discover, find out 和invent都有“发现”的意思，但各自又有自己的特点。
1）discover的意思是“发现”，指发现的对象是原本就存在的，只是以前不知道。
Xiao Ming discovered a new star in the sky last night.
小明昨天晚上发现了空中的一颗新星。
2）invent 的意思是“发明”，发明的对象是以前从来没有过的新东西。
Do you know who invented bicycles?
你知道谁发明的自行车吗？
3）find out 是指 “发现；查明”，强调找出原因，发现情况等。
In the end, the old grandma found out the number of the children.
老奶奶最后终于弄清了孩子们的数（有多少孩子）。
【模拟试题】（答题时间：40分钟）
I. 选择填空：
1. Many friends of ______have some inventions.
A. my B. mine C. I
2. What are those strange things used_______ , do you know?
A. to B. in C. for
3. Can you tell me _______the train was invented?
A. what B. who C. where
4. My bedroom ______ every morning. My mom _______ it.
A. cleans/ is cleaning B. is cleaned/ cleans C. cleaned/ cleaning
5. This kind of shoes is made by a worker ______ Johnson.
A. name B. names C. named
6. Chinese is now _______ by many people in different places.
A. learning B. learnt C. learns
7. ________ his brother got the first winner. They were very excited.
A. In the end B. By the end C. At first
8. He said sorry to me that he took my school clothes ______ mistake.
A. with B. by C. on
9. I think the telephone was one of the greatest _______.
A. invented B. inventors C. inventions
10. I _______ to leave at once, or I’ll be late for the meeting.
A. tell B. be told C. am told
II. 完型填空：
We were going to play a team from a country school. They didn’t come until the game time arrived. They looked ___1____ than we had thought. They were wearing dirty blue jeans and looked like farm boys. We even thought that they had never seen a basketball before.
We all sat down. We felt that we didn’t ___2____ any practice against a team like that
It was already so late that no ___3___ could be given to them for a warm-up.
The game began.
One of our boys ___4___ the ball and he shot a long pass to our forward（前锋）. From out of nowhere a boy in a dirty T-shirt ___5____ the pass and with a beautiful form he shot and got two points.
They ___6___ us.
Then they got another ___7____ of points in a minute.
Soon it was all over. The country team ___8____ us.
We certainly learned that even though a team is good, there is usually another ___9___ a little better. But the important lesson learned was: One can’t tell a man, or a team, by the ___10___.
1. A. stronger B. younger C. worse D. less
2. A. get B. try C. use D. need
3. A. basket B. space C. ball D. time
4. A. got B. played C. missed D. carried
5. A. caught B. changed C. started D. stopped
6. A. surprised B. kept C. broke D. hit
7. A. half B. pair C. group D. double
8. A. won B. saved C. beat D. joined
9. A. just B. already C. about D. almost
10. A. T-shirt B. clothes C. places D. points
III. 被动语态练习
A. 将下列句子变为被动语态，每空一词。
1. We can finish the work in two days.
The work _____ _____ _____ in two days.
2. They produce silk in Suzhou.
Silk ____ ______ in Suzhou.
3. The children will sing an English song.
An English song ____ ____ ___ by the children.
4. I have given this book to the library.
This book ___ ____ ____ to the library.
5. Did they build a bridge here a year ago?
____ a bridge ____ here by them a year ago?
6. We'll put on an English play in our school.
An English play ____ ____ _____ on in our school.
7. More and more farmers buy color TV sets.
Color TV sets ___ ___ ___ more and more farmers.
8. We must water the flowers every day.
The flowers must ___ ___ (by us) every day.
9. They use knives for cutting things.
Knives ___ ___ for cutting things.
10. You can dig a hole in the earth.
A Hole ____ ____ _____ in the earth.
B. 用动词的正确语态填空。
1. The students _____ often _____(tell) to take care of their desks and chairs.
2. That play ________(put) on again sometime next month.
3. The old man is ill. He ______ (must send) to the hospital.
4. Vegetables, eggs and fruits_________ (sell) in this shop.
5. What ___ a knife ______ (make) of?
It _______________ (make) of metal and wood.
6. A Piano concert _____________(give) here last Friday.
7. ______ the magazine ____(can take) out of the library?
8. Russian _______ ______ (learn)as the second language by some students in China.
9. The stars _____________ (can see) in the daytime.
10. These kinds of machines __________(make) in Japan.
【试题答案】
I. 选择填空：1-5 BCCBC 6-10 BABCC
II. 完型填空：1-5CDDAD 6-10 ABCAB
III. 被动语态练习：
A. 将下列句子变为被动语态，每空一词。
1. can, be, finished 2. is, produced
3. will, be, sung 4. has, been, given
5. Was, built 6. will, be, put
7. are, bought, by 8. be, watered
9. Are, used 10. can, be, dug
B. 用动词的正确语态填空。
1. are, told 2. will, be ,put
3. must, be, sent 4. are, sold
5. is, made, is, made 6. was, given
7. Can, be, taken 8. is, learned
9. can, be, seen 10. are, made