人教版高中英语必修3课件 Unit 4 Astronomy Key Sentences &Writing (15张PPT)
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| 名称 | 人教版高中英语必修3课件 Unit 4 Astronomy Key Sentences &Writing (15张PPT) |  | |
| 格式 | zip | ||
| 文件大小 | 829.6KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2020-03-20 09:02:01 | ||
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文档简介
(共15张PPT)
Key Sentences
&Writing
Unit 4 Astronomy
However, according to a famous theory, the universe began with a “Big Bang” .
famous = widely accepted
They were finally to produce carbon dioxide, nitrogen, water vapour and other gases.
finally = in time
It was not immediately obvious that water was to be basic to the development of life.
be basic to = be fundamental to
The continued presence of water allowed the earth to dissolve bad gases and acids into the oceans and seas.
.
bad = harmful
.
This produced a chain reaction, which made it possible for life to develop.
making
They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish.
They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.
encouraging
preventing
1
What is even more important is that as the earth cooled down, water began to appear on its surface.
What many scientists believe is that the continued presence of water ...
I am puzzled because I don't know when the dinosaurs disappeared.
2
According to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions.
It is widely accepted that the universe began ...
It is a widely accepted theory that the universe ...
3
No one knows exactly how the earth began, as it happened so long ago.
What it was to become was uncertain until ... when...
The earth became so violent that it was not clear whether the shape would last or not.
Why they suddenly disappeared still remains a mystery.
4
Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
是否......取决于是否.........
地球变暖(global warming)是否加剧取决于我们是否产生更多的二氧化碳。
Whether global warming will become more serious depends on whether we produce more carbon dioxide.
5
As a result of this, many scientists believe the earth may become too hot to live on.
Writng
Dear humans,
Recently I have felt so hot because you do something bad to me. Could you give me some help?
First, there is so much pollution. It makes it easy for me to have a terrible disease. Second, human activities cause a lot of carbon dioxide.
As we all know, I am the only place for you to live in, but I don't know if I can live longer. I think if you give me help, I will go through the difficulty.
Looking forward to your reply.
Imitative Writing
1. 在学校举办的比赛中，你们没有取得好成绩，这让你们非常难过。
2. 众所周知，你们已经做了充分的准备。
3. 但让你们出乎意料的事情是伴奏(accompanying music)出现了问题。
4. 没有人知道为什么这么发生了这么倒霉的事情。
5. 事实上，生命是一场旅行，比目的地(destination)更重要的是能够享受一路上的风景。
6. 我认为是否你们能成功并不取决于这一次的成绩。
Dear students,
I'm terribly sorry to know .....
No matter what happened, I'm always proud of your devotion and contribution to this activity.
tense
Dear students,
I'm terribly sorry to know .....
No matter what happened, I'm always proud of your devotion and contribution to this activity.
Homework
Polish your compostion and write down on your textbook.
THANKS
Key Sentences
&Writing
Unit 4 Astronomy
However, according to a famous theory, the universe began with a “Big Bang” .
famous = widely accepted
They were finally to produce carbon dioxide, nitrogen, water vapour and other gases.
finally = in time
It was not immediately obvious that water was to be basic to the development of life.
be basic to = be fundamental to
The continued presence of water allowed the earth to dissolve bad gases and acids into the oceans and seas.
.
bad = harmful
.
This produced a chain reaction, which made it possible for life to develop.
making
They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish.
They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.
encouraging
preventing
1
What is even more important is that as the earth cooled down, water began to appear on its surface.
What many scientists believe is that the continued presence of water ...
I am puzzled because I don't know when the dinosaurs disappeared.
2
According to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions.
It is widely accepted that the universe began ...
It is a widely accepted theory that the universe ...
3
No one knows exactly how the earth began, as it happened so long ago.
What it was to become was uncertain until ... when...
The earth became so violent that it was not clear whether the shape would last or not.
Why they suddenly disappeared still remains a mystery.
4
Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.
是否......取决于是否.........
地球变暖(global warming)是否加剧取决于我们是否产生更多的二氧化碳。
Whether global warming will become more serious depends on whether we produce more carbon dioxide.
5
As a result of this, many scientists believe the earth may become too hot to live on.
Writng
Dear humans,
Recently I have felt so hot because you do something bad to me. Could you give me some help?
First, there is so much pollution. It makes it easy for me to have a terrible disease. Second, human activities cause a lot of carbon dioxide.
As we all know, I am the only place for you to live in, but I don't know if I can live longer. I think if you give me help, I will go through the difficulty.
Looking forward to your reply.
Imitative Writing
1. 在学校举办的比赛中，你们没有取得好成绩，这让你们非常难过。
2. 众所周知，你们已经做了充分的准备。
3. 但让你们出乎意料的事情是伴奏(accompanying music)出现了问题。
4. 没有人知道为什么这么发生了这么倒霉的事情。
5. 事实上，生命是一场旅行，比目的地(destination)更重要的是能够享受一路上的风景。
6. 我认为是否你们能成功并不取决于这一次的成绩。
Dear students,
I'm terribly sorry to know .....
No matter what happened, I'm always proud of your devotion and contribution to this activity.
tense
Dear students,
I'm terribly sorry to know .....
No matter what happened, I'm always proud of your devotion and contribution to this activity.
Homework
Polish your compostion and write down on your textbook.
THANKS
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