Unit 9 When was it invented?（全单元）

九年级英语上册Unit9学案
Unit 9 When was it invented
Section A
学习目标：
学习一般过去时的被动语态和特殊疑问句。
教学重难点：
一般过去时态的被动语态
基本结构：助动词be（was / were）+及物动词的过去分词
A thief was caught last night.
They were asked to speak at the meeting.
肯定式：It was made.
否定式：It was not made疑问式：Was it made No, it wasn’t Yes, it was
学习过程：
1. 情境导入：Warm-up
Ask the students to be familiar with the words below according to the pictures on computer.
Telephone, calculator, car, personal computer, TV, electric light, light bulb, alarm, clock, microwave oven, electric slipper.
2. 自主学习：Presentation
1) 教学When was the car invented It was invented in……
Choose the three inventions of these and ask students to guess when each one was invented.
For example, you might choose car, telephone, and personal computer.
Have several different students guess and write the dates on the board. Ask the class to repeat the questions and aanswers.
[T=Teacher, S=Student]
T: When was the car invented (Class repeat.)
S1: 1900
T: OK. Jackie, repeat after me. The car was invented in 1900.
Repeat the process with several different inventions.
At last, make students find out the real dates.
2) 教学Who were the light bulbs invented by And what are they used for
呈现Edison and light bulbs的画面。
Tell the students Edison invented light bulbs.
Then ask the students to answer the questions below.
T: Who were light bulbs invented by ( Class repeat )
T: Good. Now Class repeat after me. They were invented by Edison.
3. 合作探究：
1)教学 操练1a, 1c, 2c
学生看书本上1a的图画，根据图画，把1a, 1c, 2c中的语言点综合起来，叫学生相互间回答问题。并用刚刚学到的目标句型来操练。最后，抽查几对学生，让他们在全班面前，按要求进行对话。
2)教学1b, 2a, 2b
首先，帮助学生明确本题的要求。接着，听力练习，学生根据录音内容完成1b, 2a and 2b.
最后，重放一遍录音内容，学生跟读。
4、拓展创新
完成一个任务
Ask some students to read about an invention using an encyclopedia or other book from the library, or by looking up information on the Internet. Have the students write up a short report and draw a simple picture of the invention or bring in a photo of it. Ask each student to show the picture and read his or her report to the class.
5. 梳理知识：本单元主要学习了一般过去时的被动语态，包括其结构与用法。利用几项发明创造练习这一知识，最后用一篇小报告来完成写作练习。
6.达标测试：　 （一）根据时间和人物写出发明物。
1) 1885____________ 2) 1876 ________________ 3) 1927____________
4) 1976 ________________5) Julie Thompson _________6) Chelsea Lanmon ______
（二）汉泽英
1)计算机是何时发明的？
2)谁发明了计算机？
3)计算机是用来做什么？
4)你认为什么是最有用的发明？
5)它能够给人们更多时间工作和玩。典型例题解析：
1.--What a nice classroom! --It ____ every day.
A. is cleaning B. has cleaned C. must clean D. is cleaned
解析：推测这句话的意思应该是“它每天都被打扫”，考查被动语态的结构be + 动词的过去分词。因此答案应该选D。
2.I know Beijing well. I ____ there three times.
A .will go B. have been C. went D. have gone
解析：推测这句话的意思“我很了解北京，我去过那三次”。表示去过应该采用的时态是现在完成时，因此可排除A和C，区别have been和have gone, have been 去过；have gone 去了（还没回来）。因此应该选择B。
中考连接：
1.--Look at the sign on the right. --Oh, smoking ____ here.
A .doesn’t allow B. isn’t allowed C. didn’t allow D. wasn’t allowed
2. --Will you come to the dinner party --I won’t come unless Jim ______.
A. can’t be invited B. was invited C. will be invited D.is invited
一、自主学习
1. 发明v. 发明n. 发明家n. 被（某人）发明 最有用的发明
被用来做 be used to doing used to 由…制成 或
可调整足跟的鞋 加热 (v.) 可以加热的冰淇淋勺子
二、语法学习-------被动语态
被动语态的构成： 一般过去时态的被动语态：
含有情态动词的被动语态： 一般现在时态的被动语态：
练一练：（一）用所给动词的正确形式填1. My shoes are worn out. Can they (mend)
2. That building (use) as a hotel last year.
3. Lisa (hear) to sing a song in her bedroom just now.
4. The song “Tiankong” (sing) by Tan Jing in both Chinese and English.
5. The Olympic Games (hold) every four years.
6. If more time (give), we can do it better.
（二）将下列句子改为被动语态
1. We built this bridge last year. This bridge ______ _______ _______ ______ last year.
2. You should take good care of these books.
These books
3. The joke made all of us laugh.
All of us by the joke Lisa told.
4. Peter saw Lucy enter the classroom just now.
Lucy the classroom just now.
5.The professor will give the students an English speech tomorrow.
An English speech the students by the professor tomorrow.
The students an English speech by the professor tomorrow.
6. Mom bought me an MP4 player last weekend.
I an MP4 player by Mon last weekend.
An MP4 player by Mom last weekend.
（三）单项选择：
( ) 1. Millions of trees around our city every year. Our environment is getting better.
A. are planting B. were planted C. planted D. are planted（2008年湖北襄樊）
( ) 2.---Who’s the little boy in the photo, Susan ----It’s me .This photo ten years ago.
A. takes B. is taken C. took D. was taken
( )3.---Where the 2010 World Expo(世博会) ---In Shanghai.
A. does ; hold B. was held C. will ;be held D. will; hold
( )4.---Mary was heard just now. What happened ---John was telling a joke.
A. cry B. to cry C. laugh D. to laugh
( )5. The story books___ by the writer in the 1960s.
A. are written B. were written C. are writing D. were writing
（四）课本同步练习
1. I think the telephone was i before the car. 2.It’s used for s really cold ice cream.
3. George wanted to make the c happy.
4.-What’s the matter ------My (后跟)is broken.
5.This is an (可调整的)bike. Most of teenagers like it.
6.-What kind of (拖鞋)would you like -------Battery operated ones.
7. The bicycle was invented . A. in 1880s B in 1880’s C. in the 1880s D. on the 1880s
Unit 9 When was it invented
Section B。
学习目标：
1、熟练掌握被动语态用法。
2、学会用被动语态表达对创造和发明事物的认识和看法。
教学重难点：主动语态被动语态
1．主动结构的宾语变为被动结构的主语；
2．主动结构的谓语动词由主动语态变为被动语态；
3．主动结构的主语变为介词by的宾语，组成介词短语，放在被动结构中谓语动词之后。在动作的执行者无须说明或不必强调时，by短语可以省略。
4．主动语态、被动语态两种时态要保持一致：
We repaired the motor.
The motor was repaired by us.
教学过程：
1.情境导入： Warm – up:
Ask the students to practice speaking.
A: When was …… invented
B: It was invented in ……
A: Who was it invented by
B: It was invented by ……
A: What is it used for
B: It is used for ……
2. 自主学习：Presentation.
1) 教学helpful, annoying
Ask students to give some examples to show what each word means. For example.
A vacuum cleaner is helpful. A very loud truck is annoying.
2) 教学3a
呈现alarm clock, light bulb, microwave over, tea, and so on的画面。Then ask the students the following questions.
T: Is the light bulb useful or annoying ( Opinions may differ. )
S1: I think it’s useful.
T: Why is it
S1: Well, it gives people more time to work and play every day.
Then ask the students to make a list of five helpful inventions and five annoying inventions on their own. Give the class about five minutes to do this.
3．合作探究： 教学 操练3b
Ask the students to work in pair the following talk using the target language.
A: What do you think is the most helpful / annoying invention
B: I think the most helpful / annoying invention is ……
A: Why is that
B: Well, it gives people……
4. 拓展创新：Consolidation and Extension
Imagine that you are alone on a tiny island, Choose five inventions you would like to have on the island with you. Tell the group what you chose and why. 5. 梳理归纳：
本节课主要的内容是主动与被动语态的练习转换。
6.达标测试：句型转换
1. She was seen to come out of the library by him.（变被动语态）
2. When are trees often planted （变被动语态）
3. The League was founded in Guangzhou in 1922（就画线部分提问）
4. Did the students wear the school clothes a lot （变被动语态）
5. Kate took god care of the baby yesterday evening.（变被动语态）
6. His aunt bought him a bicycle.（变被动语态）
7. His aunt bought him a bicycle.（变被动语态）
典型例题解析：
1.老人们被照顾地很好。The old ______ ______ after well.
解析： 这个题主要考查被动语态的结构be + 动词的过去分词和应用，在本题中应该是be looked after.
2. You can use the box ______ the toys.
A. carry B. carrying C. to carry D. carried
解析：在这个题目考查一个短语的应用 use sth to do利用某物做某事，因此答案为C。
中考连接：
1. Although Tom failed the game, _____ he said he would try again.
A. \ B. and C. but D. because
2. I must practice _____ English, because it’s important while talking with a foreigner.
A. speak 　B. to speak 　 C. speaking Ｄ.speaks
、自主学习（描述你曾吃过的食品）
酸的 甜的 咸的 脆的 辣的 苦味的 bitter
1. potato chips 2. lemon 3. ice cream 4. tea
二、合作探究
（一）学习2a，2b.你知道potato chips(薯片)的由来吗？（The history of potato chips）
1.Translate the following phrases:(翻译以下汉语)
炸土豆条，发明，错误的（阴差阳错的），一个叫George Crum的厨师，1853年，顾客，不够薄，不够咸，炸到很脆为止，在…上撒盐，薄片的脆的咸的土豆条
2.Retell it according to the key words(根据关键词复述)
（二）3a（茶的由来）
1. Fast reading and answer the questions on page72.
2. Careful reading and translate the following phrases into English.
最受欢迎的饮料，偶然地，直到1610年才传到西方国家，三千多年的历史，根据，古老中国的传说，神农皇帝，发现，烧开水，树叶（灌木），落入，滞留，注意到，散发出一种令人愉快的味道，热的混合物，可口的，这样（用这种方法），世人最喜欢的饮料之一，被发明
3. Retell it.(口头复述)
三、达标检测：翻译短语1．偶然 2．直到……才……　　　　　　3．根据
4．决定做某事 5．落入 6．撞上某人 7．以这种方式 8．by mistake 9. 被遗留 10. 注意到 11. 产生 12.令人愉快的
根据汉语提示及句意写出单词
1. Mom added salt but it still wasn’t s enough.
2. She likes c cookies. They are hard, dry and easily broken.
3.-What are you doing --------I’m reading an (古老的)legend.
4.George Crum is a (厨师).He invented chips by mistake.
5.-Can you show me how to (投)the flying disk ---------Do like this.
6. I prefer lemons to oranges. I like the s tastes.
7 I don’t like eating chocolate. It tastes too s .
8. Edison i many useful i in his life. The light (invent)by him.
9. The telephone (invent) in 1876. I think ( 最有用的发明) is the light bulb.
10. The battery-operated slippers (被用来) (see) in the dark.
11. These books are used only teachers.请选择(for/as/by/to)
12. The shoes with adjustable heels (被用来) （change）the style of the shoes.
.世纪 在六世纪 2. 积极的，活动的 活动(n.)
3.创造(v.) 有创意的 4. 木制的 木头 5. 发展(v.) 发展（n.） 6. 流行的 流行普及（n.） 7. 金属 8. 低于 9. rise (过去式) （过去分词） 10. 与…─相撞 11 把…分成 二、合作探究
Fast reading---------Match the information.
(从右栏事件中，选取与左栏时间相对应的选项，并将字母填在括号内)
Time Events
( )1.1861( )2.1891( )3.1936 A. The basketball game became an Olympic event.B .The first basketball game was played.C. James Naismith, the bastekball inventor, was born.
二、Careful reading--------True(T) or false (F).
( ) 1.The history of basketball is exactly a century old.
( ) 2.Dr.Naismith’s game was played outdoors at first.
( ) 3.The backboard was used to help the player put the ball into the basket.
( ) 4.Naismith divided all his classmates into two teams to play his new game.
( ) 5.A basketball team from China took part in the Berlin Olympic.
( )6.So far, there haven’t been any foreign basketball players in America’s NBA.
词汇：1．-What did you （注意到）？------A thief is stealing something in the room.
2. This is a cutting machine. If you (摸)it, you’ll hurt yourselves.
3.-How many apples have you got -------A (篮子).
4.-Where are Amy and Kitty -----They are playing tennis in the tennis （球场）.
5.-Please (敲)at the door before you come in. -----Oh, sorry. I’ll do next time.
6.I play basketball just for f . 7.He saw a big bear moving t him.
8.The number of the people of learning English has r .
9.In winter, the temperature will fall b zero.
10.Now we have more free time, We should take an a part in all kinds of sports.
Unit9 When was it invented 单元检测题
根据句意和首字母（或汉语）提示完成单词。（10分）
1. Tom is very careless, so he made many m in his math exam.
2. Thomas Edison was a great American i . He had more than one thousand i in his life.
3. He saw a big bear moving t him.
4. In winter, the temperature will fall b zero.
5. He n that he had left already.
6. His father has been in prison(监狱) three times a to our records.
7. The farmers worked hard to p good crops from poor soil.
8.It was made in (古老的)China.
9.The bad boy (投) a stone to the window.
10.It is (令人愉快的)to work with him.
二、用括号中单词的适当形式填空。（10分）
11.Most business letters around the world (write)in English.
12.Oh,I think you have put too much salt in the spoon. It tastes quite (salt).
13.Who do you think is the most famous (invent)in the world
14.I think it would be (good) to have a TV set than to have a radio.
15.The coat is used for (keep)water away.
16.What do you think is the most (use) invention
17. How many (abacus) can you see in the shop
18.A student (call) Li Ming is good at playing football.
19.The Eittel Tower (design) by a Frenchman called Gustave Eiffel over 100 years ago.
20.The 2012Olympic Games will (hold) in London.
三、单项选择(10分)
21．Paper is making books. A. used for B. making for C. good for D. bad for
22.The bridge by the farmers themselves in 1982. A. built B. was built C. build D. was building
23.Light bulb was by Thomas Edison many years ago.
A. produced B. invented C. found D. discovered
24. -Where is tea ------In South and East China. A. produced B. made C. grown D. grew
25. Dr.Bethune was busy the wounded soldiers.
A. operating on B. operate C. operate at D. to operate in
26.I notice him the teachers’ office just now. A. went into B. go into C. was going to D. came out of
27. The food smells very . A. sweet B. salty C. crispy D. nice
28. Is this used your friend’s birthday present A. as B. for C. to D. of
29. We not to play computer games often. A. are told B. have told C. told D. tell
30. “Did you go to Jack’s birthday party ” “No, I .”
A. am not invited B. wasn’t invited C. haven’t invited D. didn’t invite
四、词汇检测：（20分）1.用来做… 2. 偶然地，意外地 3. 根据 4.落入
5. 与相撞 6. 酸的 7. 古老的 8. 注意到 9.发明（v.）
10. 发展 11. 划分 12. 味道 13. 投；掷 14. 世纪
15. 积极的 16. 篮子，筐子 17. 金属 18.生产 19. 投篮 20. 流行n.用适当的介词或副词填空
1．If I had a lot of money, I would travel the world.
2. a cold winter morning, he left for a faraway village.
3. The Olympic Games has a hundred years’ history
4. Cars were invented American. 5.The teacher divides our class four groups to study.
想一想：你学会了上面的知识了吗？
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