内容正文:
In this unit, you will learn to:
• introduce the great inventions in the world.
• be creative in your daily life.
• use the text clues to understand the author’s viewpoint.
• use the reading strategy of rereading.
• design your dream invention.
Big Question: What is invention in your eyes?
u
UNIT
3
Listening & Speaking
Objects, materials and their uses
Preparing for the Topic
学习目标
通过本节课的学习,同学们将能:
1. 掌握plastic, metal, bamboo, wood, glass等材料类名词以及wooden, bamboo等材质类形容词,熟练运用be made of和be used for句型。
2. 听懂听力对话,提取物品材质、用途、年份、国家信息完成表格,并且运用句型和同伴进行问答操练。
3. 感受发明对生活的作用,主动参与口语练习。
What is this?
What is it made of ?
It’s a dress.
It is made of cotton.
Look and say.
What is this?
It’s a chair.
What is it made of ?
It is made of wood.
What is it made of ?
It is made of plastic.
What is it used for?
It is used for measuring.
What is this?
It’s a ruler.
What is it made of ?
It is made of metal and plastic.
What is it used for?
It is used for working and studying.
What is this?
It’s a computer.
A. Match the objects(a-f) with the pictures at the top of the next page.
Activity 1
plastic raincoat
a
wooden guitar
b
bamboo chopsticks
c
glass skywalk
d
paper house
e
metal lock
f
a
e
b
f
d
c
B. Fill in each blank with a suitable phrase above.
1. Xiao Ya is good at music. So, her uncle gave her a ______________ as her birthday gift last year.
2. I would never walk on the ______________ over the mountains. It is very high and I am afraid I might fall.
3. _________________ are a great invention. They’re an important part of Chinese dining culture.
4. It’s raining hard. Take an umbrella or a ______________ to protect yourself from getting wet.
5. As an art lover, I like making ______________ best when I spend time with my little brother.
6. The boy put the key in the ______________ of the door and turned it. Only seconds later, he entered the secret garden.
wooden guitar
glass skywalk
Bamboo chopsticks
plastic raincoat
paper houses
metal lock
C. Pair work. Listen and repeat, and then replace the parts in bold and practice with your partner.
What’s the lock made of?
It is made of metal.
What is it used for?
It is used for locking the door.
Activity 2
Listen to the conversations and complete the table.
Inventions Usages Materials Year Countries
Laptop For __________
and play Plastic and metal ______ ________
Cellphone • Communication
• Searching for
_____________ Mainly plastic ______ ________
information
work
in 1973
around 1981
America
America
Activity 3 Pair work. Ask and answer questions based on Activity 2.
—What’s the laptop made of ?
—It's made of plastic and metal.
—What is it used for?
—It’s used for ...
…
For example:
(1) A: What’s the laptop made of?
B: It’s made of plastic and metal.
A: What is it used for?
B: It’s used for work and play.
A: Where was the first laptop made?
B: It was made in America.
A: Do you know when the first laptop was invented?
B: It was invented around 1981.
(2) A: What’s the cellphone made of?
B: It’s mainly made of plastic.
A: What is it used for?
B: It’s used for communicating with others and searching for information.
A: Where was the first cellphone made?
B: It was made in America.
A: Do you know when the first cellphone was invented?
B: It was invented in 1973.
Language points
1. —What’s the lock made of? —It is made of metal.
——锁是用什么做的?——它是由金属制成的。
【点拨】be made of+原材料:成品能直接看出原材料,物理变化,仅形态改变,材质本身没变。
e.g. The table is made of wood.这张桌子是木头做的。(肉眼看得见木头)
【拓展】(1) be made from:成品看不出原材料,发生化学变化。
e.g. Paper is made from wood.纸是由木头制成的。(看不出原木)
(2) be made in+地点:在某地制造
e.g. This raincoat is made in Hangzhou.这件雨衣产自杭州。
(3) be made by+人:由某人制作
2. —What is it used for? —It is used for locking the door.
——它用来做什么?——它用来锁门。
【点拨】be used for+动名词(doing)含义:某物被用来做某事,表物品功能、用途。
【拓展】be used to do sth被用来做某事(to是不定式符号,后接动词原形)
e.g. It is used to lock the door.它是用来锁门的。
3. Do you know what laptops are made of? 你知道笔记本电脑是由什么材料制成的吗?
【点拨】本句中的宾语从句是 “what laptops are made of”,其关键规则:宾语从句必须使用陈述句语序。
4. Do you know when the cellphone was invented? 你知道手机什么时候被发明出来的吗?
【点拨】(1) 本句中的宾语从句是 “when the cellphone was invented”,其关键规则:宾语从句必须使用陈述句语序。
(2) “was invented”属于一般过去时的被动语态。
Exercise
一、英汉互译
1. raincoat
2. wooden
3. lock
4. umbrella
5. lover
6. 随身携带
7. 中华饮食文化
8. 搜索信息
雨衣
木制的
锁
雨伞
爱好者
take sth around
Chinese dining culture
search for information
二、根据汉语提示完成句子
1. The table ___________ ___________ ___________ (由······制成) wood.
2. This machine ___________ ___________ ___________ (用于) making bread.
3. Many people are interested in ___________ ___________ ___________ (中华饮食文化).
4. You need to ___________ your ID card ___________ (随身携带) when you travel.
5. I often ___________ ___________ ___________ (搜索信息) on the Internet.
is made of
is used for
Chinese dining
take around
search for information
culture
三、句型转换(按要求改写句子)
1. The lock is made of metal.(改为一般疑问句)
___________ the lock ___________ of metal?
2. It is used for locking the door.(对画线部分提问)
___________ ___________ it used for?
3. The cellphone was developed in 1973.(对画线部分提问)
___________ ___________ the cellphone developed?
4. These umbrellas are made of plastic.(改为否定句)
These umbrellas ___________ ___________ of plastic.
Is made
What is
When was
aren’t made
THANKS
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