（新课标·新版教材）Unit2 Topic2 All these problems are very serious. Section A 课件（26张）

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Unit 2 Topic 2
All these problems are very serious.
Section A
Learning objectives
1.Some words: sand, although
2.Some phrases: change into, human being
3.Some sentences:
(1)As a result, a lot of rich land has changed into desert.
(2)Trees can stop the wind from blowing the earth away.
4. Use the indefinite pronoun and adverb.
Watch a vedio
What’s it about
Look and answer
< 01>What kind of weather is it
What do you think of it
sandstorm [ s nd st m] n.沙暴
New words
sand [s nd] n.沙，沙子
sandstorm [ s nd st m] n.沙暴
change…into… 转换成
desert ['dez t] n.沙漠v.舍弃
New words
although [ l' ] conj.虽然
reduce [r dju s] v.减少
completely [k m pli tli] adv.彻底地
Plant trees
sand
sand
although
although
desert
desert
completely
completely
reduce
reduce
sandstorm
sandstorm
change..into
change..into
Free talk
Look and talk about how sandstorms come into being.
forests gone
come into being
cut down trees
Predict
What is this passage mainly talking about
Listen and answer
Listen to la and answer the questions.
1. What are the boy and girls talking about
A. different types of sandstorms
B.the reasons for sandstorms
C. sandstorms in different cities
2. What have human beings done to protect the environment
They have built the Green Great Wall.
Listen and answer
Listen again and complete the mind-map.
sandstorms
facts
reason
result
The wind outside is blowing .
Kangkang couldn't see
strongly
anything
People have too many trees.
cut down
Rich land has changed into
desert
Work on 1c
Read 1a and complete trees’ functions.
Trees can stop the wind from blowing the earth away.
A lot of water can be saved by forests.
They can also stop the water from washing the earth away.
Tree’s functions
1a
Read 1a and circle the language points.
(Kangkang, Maria and Jane are talking in a room.
The wind outside is blowing strongly.)
Maria:What a strong wind!
Kangkang: Yes. But it's better than the last few years. There were sandstorms before.While I was walking down the sreet, I couldn't see anything. The sand really hurt my face.
Maria:Why was the weather so bad
Language points
强烈的/猛烈的
感叹句 what a +adj.+可数名词单数
当....时候
Jane:People cut down too many trees. As a result,a lot of rich land changed into desert. Trees can stop the wind from blowing the earth away.
Kangkang: And a lot of water can be saved by forests.
Jane:Trees can also stop the water from washing the earth away.
Language points
砍倒
太多
作为结果
许多
change..into变成/转换成
stop sb./sth. from doing sth.阻止某人某物做某事
blow..away 把...吹走
save 储存
wash...away把...吹走
Maria:Cutting down trees affects the weather so much.
Kangkang: Yes. It is harmful to human beings, animals and plants. Although there were sandstorms before, now we have built “The Green Great Wall”.Our environment has become much better.
Language points
V-ing作主语，谓语动词用单数
be harmful to 对...有害
虽然/尽管 不与but连用
Read and remember
What a strong wind! 多么大的风啊！
cut down 砍倒
too many 太多
as a result 作为结果
a lot of 许多
change..into变成/转换成
stop sb./sth. from doing sth.阻止某人某物做某事
blow..away 把...吹走
wash...away把...冲走
be harmful to 对...有害
Match the phrases
What a strong wind!
a lot of
as a result
cut down
wash...away
too many
blow..away
be harmful to
change..into
多么大的风啊！
作为结果
太多
变成/转换成
对...有害
把...吹走
砍倒
许多
把...冲走
(Kangkang, Maria and Jane are talking in a room.
The wind outside is blowing strongly,)
Maria:What a strong wind!
Kangkang: Yes. But it's btter than the last few years. There were sandstorms betore.While I was walking down the sreet, I couldn't see anything. The sand really hurt my face.
Maria:Why was the weather so bad
Jane:People cut down too many trees. As a result,a lot of rich land changed into desert. Trees can
stop the wind from blowing the earth away.
Kangkang: And a lot of water can be saved by forests.
Jane:Trees can also stop the water from washing the earth away.
Maria:Cutting down trees affects the weather so much.
Kangkang: Yes. It is harmful to human beings, animals and plants. Although there were sandstorms before, now we have built “The Green Great Wall”.Our environment has become much better.
Read 1a
Read 1a and pay attention to the following sentences.
I could see nothing.
Grammar
the indefinite pronoun and adverb
somebody, someone, something, somewhere
anybody, anyone, anything, anywhere
none, nobody, nothing, nowhere
everybody, everyone, everything, everywhere
一般情况下用于肯定句
一般情况下用于否定句和疑问句
表否定含义
可用于各种句式
Exercises
Use someone, something, anything, somewhere, anywhere to fill in the blanks.
Lily, would you like ___________ to drink
Cindy is very busy now. She needs _____ __ to help her.
Is there _________ wrong with your computer
Jim looked for his pencil-box ____________ , but he didn’t find it.
I stayed at home last week. I didn’t go __________.
something
someone
anything
somewhere
anywhere
Work on 2
Complete the sentences with the correct forms of the given phrases in the box.
1.People have cut down such a large number of trees that the land
_____________________desert.
2.There are fewer trees left, so the wind always _______the earth ________.
3.Air pollution has become a serious problem, so we must______________
to reduce it.
4.we should try our best to _________ people ________ cutting down the trees.
5.In the future, human beings can protect the trees well._____________,
animals will live a happy life in the forest.
As a result
as a result, change into, do something,
stop…from, blow…away
has changed into
blows
away
do something
stop
from
Work on 4
A. Listen to the passage and circle the phrases you hear.
become weaker
destroy the environment
disappear rapidly
on the earth
enough bamboo to eat
Work on 4
B. Listen again and fill in the blanks.
1. Now some kinds of animals are becoming______ ______ _______.
2. Some animals are_____ ______ ____dying out completely.
3. In the past, pandas lived a quiet life and had________ ______food.
4. Humans have _____ _____ ___ _______ the importance of protecting animals.
5. We should ______ ______ ____to protect them.
do our best
plenty of
come to understand
in danger of
fewer and fewer
Thank you