冀教版八年级下Unit 2 Plant a Plant Lesson 8 Why Are Plants Important?课件（15张ppt）

(共15张PPT)
Lesson 8:
Why Are Plants Important
I. Learning aims:
Master the new words and phrases:
pleasant, shade, basic, soil
II. Learning important and difficult points:
1) be made of / in / from / by
2) without的用法
pleasant
shade
basic
soil
New Words
★Which do you eat more, plants or meat
★Can we live without plants
Why or why not
★What do people use plants for
Think About It !
Let’s Do It !
In a small group, make a list of the plants you eat everyday. What would happen to us if there were no plants Try using this phrase: “ If we had no plants, ________.”
Language
Points
without是介词，后面接名词或动名词，意为“没有；在没有……的情况下”，既可以放在句首也可以放在句尾。反义词是with。如：
In a word, we can’t live without plants.
总之，我们离不开植物。
Without water, fish can’t live.
没有水，鱼不能活着。
be made of； be made from
be made in； be made by
（1） be made of意为“由……制成”，从制成品上能看出原材料来。如：
That chair is made of wood.
那把椅子是用木头做的。(从外表能看出是木头)
（2） be made from意为“由……制成”，从制成品上看不出原材料。如：
The paper is made from wood.
纸是由木头做的。(从外表看不出木头)
辨析
（3） be made in意为“在某地制成”，in后面接地点。如：
This watch is made in China.
这只手表在中国制造。
（4） be made by 意为“通过什么方式或者由某人制成”。如：
The coat is made by hand. 衣服是手工做的。
Exercises
1. Many students use their computers ____ games now.
A. play B. playing
C. to play D. played
2. —I like listening to music very much.
—______.
A. So do I B. So I do
C. So am I D. So I am
I. 单项选择。
C
A
3. Half of the milk in this store ______ from Shandong.
A. comes B. come
C. have come D. are coming
4. How can I do my homework I don't even have a pen ______.
A. to make B. to make in
C. to write D. to write with
A
D
1. The Zhaozhou Bridge is made ___ stone.
2. What did you come to school ______
3. People can get news ______ many ways.
4. All the living things can't live ________ air.
5. We can make this medicine _____ plants.
II. 用适当的介词填空。
of
for
in
without
from
1. from, food, plants, comes, our, most, of
__________________________________.
2. medicine, sick, doctors, help, to, people, use
__________________________________.
3. a, made, you, straw, do, hat, of, have
__________________________________
4. different, are, many, there, world, plants, in,
eat, the, people, that, can
__________________________________.
III. 连词成句。
Most of our food comes from plants
Doctors use medicine to help sick people
Do you have a hat made of straw
There are many different plants in the world
that people can eat
Homework
Read the text after class, and try to recite it.