九年级英语 Unit 9 When was it invented单元教案 人教新目标版.doc

Unit 9 When was it invented?
Ⅰ Teaching objectives 教学目标

Skill
Focus
▲Talk about the history of inventions
▲Write and read about inventions
▲Learn to remember information using mind-mapping
▲Learn to use imagination to invent things to deal with problems and do role plays

Language
Focus

功能句式
Talk about inventions(P68-70)
When was (the telephone ...) invented?
I think it was invented in ...
I think (the telephone ...) was invented before / after ...
Who was it / were they invented by?
It was / They were invented by ... What is it / are they used for?
It is / They are used for ...
What do you think is the most helpful / annoying invention?
I think the most helpful / annoying invention is ...
词汇
1. 重点词汇
invent, mistake, ancient, produce, pleasant, pie, throw, century, notice, including, knock, basket, metal, below, towards, develop, risen
2． 认读词汇
scoop, adjustable, heel, battery, operate, slipper, bulb, light bulb, microwave, microwave oven, crispy, salty, sour, chef, sprinkle, beverage, according, legend, boil, bush, remain, flying disk, bakery, Bridgeport, Connecticut, lemon, cookies, abacus, binoculars, rank, indoors, create, wooden, divide, aim, hoop, shoot, backboard, guide, court, Berlin, popularity, worldwide, association, equipment
3． 词组
be used for, by mistake, in the end, by accident, according to, fall into, in this way, knock into
语法
The Passive Voice:
1. When was / were ... invented?
2. Who was / were ... invented by?
3. What is / are ... used for?
Strategy
Focus
1. Brainstorming
2. Role playing
Culture
Focus
The history of chips which are popular with westerners.
The invention of tea.

II. Teaching materials analyzing and rearranging 教材分析和重组

1. 教材分析
本单元以Inventions为话题，共设计了四个部分的内容：
Section A
该部分有4个模块：第一模块围绕When and in what order were they invented? 这一话题展开讨论（1a）、听力（1b）、口语（1c）训练；第二模块围绕3个inventions 进行听力（2a-2b）、口语（2c）训练；第三模块继续围绕inventions这一话题展开训练，要求列出两类不同的发明（3a）并以pairwork形式对此展开讨论和对话训练（3b）；第四模块设置情景alone on a tiny island，以小组活动形式讨论在该情景下什么inventions重要及原因。这部分主要训练口语、学生处理问题的思维能力和想象力。
Section B
该部分有4个模块：第一模块是词汇的学习（1a）与运用（1b）；第二模块围绕the history of chips继续进行听力（2a-2b）、口语（2c）训练；第三模块围绕Who invented tea？这一话题展开阅读理解（3a），并要求学生能够以“From pie plate to flying disk”为题目进行应用写作训练（3b）；第四模块以inventions这一话题训练学生的创造力、解决问题的能力和想象力(4a)， 并且以小组讨论和角色扮演（4b）的形式展开口语训练。
Self check
该部分有2个模块：第一模块对所学词汇进行填空训练(1)；第二模块要求就不同的inventions搜集信息并进行写作训练(2)。
Reading
该部分共设置了5项任务：第一项任务以问题讨论的方式激活学生相关背景知识(Section 1)；第二项任务要求学生通过快速阅读获取信息(Section 2)；第三项任务利用填图、回答问题等练习形式进一步加深学生对阅读内容的理解(Section 3)；第四项任务要求学生对“play on China’s national basketball team one day”问题发表观点、进行口语训练(Section 4)；第五项任务要求学生对某一项发明进行调查研究。

2． 教材重组和课时分配
Period 1 (Section B: 1a, 1b)
Vocabulary building
Period 2 (Section A: 1a, 1b, 1c) New function presenting
Period 3 (Section A: 2a, 2b, 2c, 3a, 3b, 4)
Practice
Period 4 (Section B: 2a, 2b, 2c, 3a, 3b) Integrating skills
Period 5 (Section B: 4a, 4b; Self check: 1, 2) Self check
Period 6 (Reading: Section 1—Section 4) Reading comprehension
III. Teaching plans

Step I Lead-in
T: Good morning / afternoon, boys and girls. This week we will begin a new unit about inventions. You can see inventions all around us, from TV to car, from food to clothing. We should say nobody can live without them. Don’t you think so? Can you imagine one day without inventions?
Ss: That’s impossible.
T: Yes, we live in a world of inventions. These inventions make our life easier and more comfortable. In this unit, we will learn some inventions and their history. First, let’s get to know some new words.

Step Ⅱ Words about food taste(1a, 1b: P71)
Ask one student to come to the front to do a blind taste test.
Show a bag to the students.
T: Look, there are 4 kinds of food in it. I will let one of you come to the front and taste them. But I will use a piece of cloth to cover his or her eyes. After tasting, he or she has to tell how each food tastes and what food it is. Are you clear? Sophie, please.
Cover Sophie’s eyes and give her the food one by one. Sophie tastes each food and tries to guess what it is.
S: It is sweet. I think it is an apple.
They are salty and crispy. I think they are potato crisps.
It is sour. I think it is a tomato.
It is salty. But I don’t think I have eaten this food before. It is delicious.
T: Do you enjoy the food? Now you can take off the cloth. The last one is Pizza, which is popular with westerners. You can take it with you and go back to your seat. Thank you.
Sophie goes back to her seat.
T: Hi, class. What are the four different tastes of the food Sophie had?
S: They are sweet, crispy, salty and sour.
T: Yes. They are words used to describe different tastes of food. Try to use them to describe the food in the picture of 1a, Section B.
Ask the students to read the pictures of 1a in Section B and describe how the food tastes.
T: Now, look at the four pictures. What are they?
Ss: They are potato chips, lemon, ice cream and tea.
T: You are right. Please use the words we’ve just learnt to describe how they taste.
S1: Potato chips are crispy. Lemon is sour. Ice cream is sweet. Tea is sweet.
T: How about you? Do you have a different idea?
S2: Potato chips are crispy and salty. Lemon is sour. Ice cream is sweet. Tea is sweet.
T: Good. I think S2’s answer is better. Now let’s repeat the description together.
Ss: ...
Ask the students to write the name of a different food after each word in 1b of Section B.
T: Now, write the names of different foods after each taste as many as possible. I think this is an easy job for you. Think of the food you eat everyday at home or in restaurants.
Collect the answers and put them down on the blackboard.
Sample answers:
sweet: apple, orange, banana, honey, orange juice, cakes and candies
crispy: salad, potato chips, lettuce and cucumber
salty: pizza, French fries, olives
sour: grapes, pickle and vinegar

Step Ⅲ Do a quiz
Ask the students to finish the following exercises in 10 minutes.
T: Next we’ll do a quiz. Your task is to finish the exercises in 10 minutes. Anyone who does his best without looking at the textbooks will be invited to my home this Sunday for a pizza meal. When I say “begin”, you can begin. After you finish, hold up your hands and let me know. Are you ready? One, two, begin!
Fill in the blanks with the words you’ve learnt according to the Chinese.
1. Who _______ the telephone? ( 发明)
2. When was the car ________? (发明)
3. It ______ _______ _______ scooping really cold ice cream. (被用来……) 4. What do you think is the most _______ invention? (令人烦恼的)
5. The potato chips were invented _________ ______. (错误地)
6. The customer thought that the potatoes weren’t ______ enough. (薄)
7. The customer was happy __________ _______ ______. (最终)
8. The customer said they weren’t _____ enough. (咸)
9. The chef ________ lots of salt on the potato chips. (撒)
10. The tea was invented ______ ______. (偶然地)
11. This beverage was _______ (发现) over 3 _____(千) years ago.
12. ______ _______ (根据) this legend, people _______(煮) water to drink over an open fire.
13. He ______ ______ the river yesterday. (掉进)
14. She ______ beautiful after these years. (保持)
15. The emperor ______ (发现) that the leaves in the water _______ (发出) a pleasant smell.
16. Dr Naismith ______ (分) the men in his class into two teams.
17. Dr Naismith _______ (创造) a game to be played on a hard wooden floor.
18. Many young people _____ _____ (梦想) becoming famous basketball players.
19. Here is a ________ present for you. (特别的)
20. Can you _______ the computer? (操作)
Sample answers:
1. invented 2. invented 3. is used for 4. annoying
5. by mistake 6. thin 7. in the end 8. salty
9. sprinkled 10. by accident 11. discovered, thousand
12. According to, boiled 13. fell into 14. remains
15. discovered, produced 16. divided 17. created
18. dream of 19. special 20. operate
T: Lily, you are the one who finished the exercises fastest and correctly, so I will invite you to my house and I will cook some pizza for you.

Step Ⅳ Homework
Review new words and phrases learnt in this period. Finish the following exercises on homework paper.
Homework paper
1. Fill in the blanks and translate the sentences.
(1) When ______ the car ______? (被发明)
(2) What ____ the heated ice cream scoop _____ ______? (被用来……)
It _____ ______ ______ scooping really cold ice cream. (被用来……)
(3) Basketball is ______ (喜欢) by all the people.
(4) A game was ________ (创造) to be played on a hard wooden floor.
(5) This beverage was _____ (发现) two thousand years ago.
(6) A pleasant smell was ______ (发出).
2. Change the sentences into the passive voice.
(1) I watered the flowers.
___________________________________.
(2) He turned on the light.
___________________________________.
(3) Who invented the air-conditioner?
___________________________________.
(4) Who invented the battery-operated slippers?
___________________________________.