Unit 9 When was it invented? 第一二三课时的教案和练习[上学期]

Unit9 When was it invented
单元提示与分析
内容提示
本单元主要是围绕着“invention”这个话题，通过熟悉我们周围经常使用发明物的历史来开阔眼界，丰富自己的阅历，使自己养成勤于思考，善于总结的好习惯。
目标提示
语言目标
1.掌握一般过去时的被动语态。
2.学会谈论发明的历史，会使用以下基本句子：
When was the car invented It was invented in 1885
Who were they invented by They were invented by …
What are they used for They are used for seeing in the dark.
认知目标：
弄清主动语态与被动语态的差异，通过练习和运用加以巩固。
情感目标：
1.通过本单元学习使学生懂得人类的科学发明创造了丰富的物质文明。
2.培养学生的创造发明的能力和愿望。
教学提示
充分利用多媒体等教学设备，设计与本课话题相关的情景，如不同种类的发明，人物，实物等等。围绕着本单元的教学目标，设计一些贴近学生实际的教学任务，让学生谈论身边的发明如电话、电脑、汽车、茶叶、篮球以及对一些当代发明的看法;让学生根据所学知识,自己进行创新设计等等.
课时安排
7课时(新课6课时，复习1课时)
第一课时:Section A: 1a, 1b, 1c
第二课时:Section A: 2a,2b, 2c, grammar focus
第三课时:Section A: 3a, 3b, 4
第四课时:Section B: 1a, 1b, 2a, 2b, 2c
第五课时:Section B: 3a, 3b, 4a, 4b
第六课时self check and reading
第七课时 复习
第一二课时
教学目标
学习一般过去时的被动语态和特殊疑问句.
教学方式
任务型教学法, 多媒体辅助教学等等.
教学设计
热身(Warm-up)
Ask the students to be familiar with the words below according to the pictures on computer.
(叫学生根据图片或通过多媒体熟悉以下的单词.)
telephone, calculator, car, personal computer, TV, electric light, light bulb, alarm, clock, microwave oven, electric slipper
呈现(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.
(选出其中三项发明,然后让学生猜每个发明的时间.)
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 answers.(让学生猜并且把日期写在黑板上.)
[T=teacher, S=student]
T: When was the car invented (Class repeat)
T: Good. Now …, what was your guess
S1: 1900
T: OK… repeat after me, the car was invented in 1900.
Repeat the process with several different inventions.(通过同一方法重复不同的发明)
At last, make students find out the real dates.(当学生对句型理解后, 学生找出发明的正确日期)
2. 教学Who were the light bulbs invented by And what are they used for
首先,老师利用多媒体课件,呈现Edison and light bulbs的画面.
Tell the students Edison invented light bulbs.(让学生知道Edison发明light bulbs.)
Then ask the students to answer the questions below.(叫学生回答以下的问题.)
T: Who were light bulbs invented by (Class repeat)
T: Good, now class repeat after me. They were invented by Edison.
Repeat the process with several different inventions.(通过同一方法重复不同的发明,当学生明白后,教师接着问)
T: Class, what are the light bulbs used for (Answers will vary.但确信学生知道be used for的用法. For example, they are used for seeing in the dark.)
(通过多媒体课件展示出的丰富多彩的图画,刺激学生的视觉感官,避免了枯燥乏味的说教,激发了学生的学习积极性,让学生在轻松好奇的氛围中学习本节课的目标语言.)
3.教学操练(Practice)1a,1b,2c
学生看书本上1a的图画,把1a,1c,2c中的语言综合起来,叫学生互相间回答问题.(Ask the students to ask and answer the questions each other.) 并用刚刚学到的目标句型来操练.(若有学生不明白,老师可先示范一次.)最后,抽查几对学生,让他们在全班面前,按要求进行对话.(说明:让学生操练目标语言,并为听懂听力内容打下基础.)
4.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.
(学生通过听力练习,进一步熟悉本课的目标语言.)
5.教学巩固和发展(Consolidation and Extension)
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 a photo of it. Ask each student to show the picture and read his or her report to the class.
(通过来完成一个任务,让学生运用所学内容,既巩固了本课所学的语言目标,又开拓了学生的思维,使学生的思维跳了课本, 培养学生在实际生活中运用本课所学内容,来解决现实生活中的实际问题的能力,真正达到了新课标提出的培养学生综合运用语言的能力.)
第三课时
教学目标
熟悉掌握被动语态用法,学会用被动语态表达对创造和发明事物的认识和看法.
教学方式
任务型教学法,多媒体辅助教学等等
教学设计
热身(Warm-up)
说明:通过多媒体课件展示出以下句型及一些发明物for example: computer, telephone, car, TV, calculator…
Ask the students to practice speaking.(叫学生练习说)
A: When was… invented
B: It was invented by…
A: What is it used for
B: It is used for…
(通过多媒体课件展示出的丰富多彩的图画,刺激学生的刺激视觉感官,避免了枯燥乏味的说教,激发了学生的学习积极性,让学生在轻松好奇的氛围中复习了上节课的目标语言.)
呈现(Presentation)
1.教学helpful, annoying
Ask the students to give some examples to show what each word means. For example, A vacuum cleaner（真空吸尘器） is helpful. A very loud truck is annoying.
确信学生知道helpful, annoying的含义.
2.教学3a
首先,老师利用多媒体课件,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.
(通过此方法让学生表达对创造和发明事物的看法.注:让学生根据自己写出的五个helpful inventions和五个annoying inventions 与同伴进行俩俩对话.)
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.(接着要求学生写出五个helpful inventions和五个annoying inventions,五分钟完成.)注: 当学生做时, 教师应全班移动来帮助学生.完毕,四人一组互相分享答案.最后,一些学生读出他们的答案,并且解释为什么.
2.教学操练(practice)3b.
Ask the students to work in pair the following talk using the target language.(叫学生用语言目标进行俩俩对话.)注:让学生根据自己写出的五个helpful inventions和五个annoying inventions与同伴进行俩俩对话.
A: What do you think is the most helpful/annoying invention
B: I think the most helpful/annoying invention is…
A: Why is it
B: Well, it gives people…
说明:此活动用目标语言为学生提供听说练习.同时进一步让学生表达自己对创造和发明事物的认识和看法.
4.教学 巩固和发展(Consolidation and Extension)
完成一个任务: Group work
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.
Maybe you can use the following drills.
I’d like to have a … because I could …
It’s used for …
I think the most helpful invention is…
But that’s not going to help you leave the island. I think it would be better to leave…
(通过来完成一个任务,让学生运用所学的内容,既复习第一课时所学的语言目标和巩固了本课时所学的语言目标,又开拓了学生的思维,培养了学生在实际生活中运用本课时所学内容,来解决现实生活中的实际问题的能力.)
以下附本单元的教学导向和第一到第三课时的课堂练习
教学导向
语言项目
语言功能 谈论发明创造的历史
语言目标 1.掌握有关发明的词汇.2.谈论物品的制作、产生、用途等，掌握和运用过去时态“When was/were…invented I think it/they was/were invented in… It was invented by…It’s used for doing sth.”等句型。3.学会撰写发明创造的小说明文。
语言结构 1.When was the car invented 2.It was invented in 1885.3.When were electric slippers invented 4.Who were they invented by 5.They were invented by Julie Thompson.6.What are they used for 7.They’re used for seeing in the dark.
重点词汇 1.有关发明的名词：heel, battery, slipper, bulb, light bulb, microwave oven, beverage, abacus, binoculars2.一些描述性形容词：crispy, salty, sour, sweet, pleasant, adjustable, worldwide3.动词：invent, scoop, operate, sprinkle, boil, produce, throw, notice, knock, divide, shoot, develop, risen
课堂练习
一 词汇题
（一）、黄金搭档
第一课时
1.―Do you know when the computer was i___________ －In 1976.
2. I think the light bulb is one of the most useful i___________(发明).
3. Who do you know is the greatest i_____________(发明家).
第二课时
4. I don’t know if shoes with a____________(可调整的) heels are comfortable to wear.
5. The b___________- operated slippers are used for seeing in the dark.
6. This machine is used for s___________ the ice cream.
7. An electric torch(手电筒) is used for ____________(see) in the dark.
8. What are the electric slippers _________(use) for
第三课时
9. What do you think is the most ______________(help) invention
10. I think the most helpful invention is the light b_________ because it gives people bright at night.
（二）、中英文互译
第一课时
1. be used for doing sth. _____________________________
2. be invented in…_____________________________
3. 被某人发明_____________________________
第二课时
4. 带可调鞋跟的鞋子_____________________________
5. 用电池操作的拖鞋_____________________________ 6. heated ice cream scoop _____________________________
7. change the style of the shoes_____________________________
第三课时
8.有用的发明_____________________________
9.annoying invention_____________________________
11. 灯泡_____________________________
12. 闹钟_____________________________
二、过关斩将
第一课时
( )1. －I think the telephone was invented ______ the car.
－I think so. The telephone was invented____ 1876.
A. before, on B. before, in C. after, on D. after, in
( )2. The computer _____ in America in 2004 and I have had it for 2 years.
A. was made B. can be made C. is made D. made from
( )3.－____was the telephone invented －It was invented in 1876.
A. Where B. When C. What D. How
( )4. Mobile phone is one of the most useful ________ in the world.
A. invents B. inventions C. inventors D. inventing
第二课时
( )5. It is used for ___________ really cold ice cream.
A. scooping B. scooped C. scoop D. scoops
( )6.－What were these machines used for
－They _____ seeing in the dark.
A. are used for B. were used for C. are used as D. were used as
( )7.－What are they used for
－They are used for ______ the old walk.
A. help B. helped C. helping D. to help
( )8.－Who _____ battery-operated slippers invented____
－Sorry, I don’t know.
A. was, by B. was, for C. were, for D. were, for
( )9. The light bulb is used for seeing _______ the dark.
A. at B. in C. during D. for
( )10.－What are those strange things used ____ －Holding things.
A. to B. in C. for D. with
( )11. －Who was the new movie made _____ － Zhang Yimou.
A. by B. with C. to D. as
( )12. －What were these machines used for
－They _____ seeing in the dark.
A. are used for B. were used for C. are used as D. were used as
第三课时
( )13. I think the ____ invention is a mobile phone. what about you
A. helpful B. more helpful C. helpfulest D. most helpful
( )14. －_______. －I think TV set is the most helpful inventions.
A. What do you think is the most helpful invention
B. Do you think what is the most helpful invention
C. What is the most helpful invention do you think
D. You think what is the most helpful invention
( )15. The light bulb can give people more time _______and play every day.
A. work B. to work C. working D. worked
( )16. －Your new dress looks beautiful. Is it ______ silk
－Yes, and it’s _________ Suzhou.
A. made by , made for B. made of, made by
C. made of, made in D. made by, made from
( )17.－______do you think alarm clock is an annoying invention
－Because it wakes me up every day.
A. When B. How C. Where D. Wh
三、改头换面
第二课时
（1）根据示范将下列句子改为被动语态。
Model: Mr. Smith made a machine last year.
→A new machines was made by Mr. Smith last year.
1. James planted a flower in his garden.
_______________________________________
2. The workers built a tall building in the village.
_______________________________________
3. Uncle Li planted an interesting picture last week.
_______________________________________
4. Charles Dickens wrote many novels.
_______________________________________
第三课时
（2）句型转换
1. The telephone was invented in 1876.(对划线部分提问)
___________ was the telephone _________
2. The CD player is produced in Guangzhou.(对划线部分提问)
___________ was the book _________ by
3. This book was written by Lu Xun.(对划线部分提问)
___________ was the book _________ by
4. Umbrellas are used for keeping off rain.(对划线部分提问)
___________ are umbrellas _________ for.
5. Julie painted a new picture.(改为被动语态)
A new picture ________ ________ by Julie.
九年级上册第九单元课堂练习答案
一、 词汇题
（一）黄金搭档
1―5. invented, invention, adjustable, inventor, battery,
6－10. scooping, seeing, used, helpful, bulb
（二）中英文互译
1.被用来做某事 2.在…年被发明 3. be invented by sb.
4. shoes with adjustable heels 5. battery-operated slippers.
6.加热的冰激凌勺子 7.改变鞋的式样 8. helpful inventions
9. 烦人的发明 10. light bulb 11. alarm clock
二、 过关斩将
1－5 B A B B A
6－10 B C C B C
11－15 A B D A B
16－17 C D
三、 改头换面
（1）根据示范将下列句子改为被动语态。
Model: Mr. Smith made a machine last year.
→A new machines was made by Mr. Smith last year.
1. James planted a flower in his garden.
A flower was planted by James in his garden.
2. The workers built a tall building in the village.
A tall building was built by the workers in the village.
3. Uncle Li planted an interesting picture last week.
An interesting picture was planted by Uncle Li last week.
4. Charles Dickens wrote many novels.
Many novels were written by Charcle Dicken.
（2）句型转换
1. The telephone was invented in 1876.(对划线部分提问)
When was the telephone invented
2. The CD player is produced in Guangzhou.(对划线部分提问)
Where was the book produced by
3. This book was written by Lu Xun.(对划线部分提问)
Who was the book written by
4. Umbrellas are used for keeping off rain.(对划线部分提问)
What are umbrellas used for.
5. Julie painted a new picture.(改为被动语态)
A new picture was painted by Julie.
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