人教版高中英语必修三Unit4 Astronomy the science of the stars Period 3 Extensive Reading 课件（43PPT）

(共43张PPT)
必修三 Unit 4 Astronomy: the science of stars

Period 3 Extensive Reading

A Visit To The Moon


Unit 4
Period 3 Reading II

A Visit To The Moon
1. Learn some background information about the moon and its exploration.

2. Understand the writing style of travel journal.

3. Develop interest in exploring space in future.
Learning objective
“That's one small step for man, one giant leap for mankind.
----Neil Armstrong
Pre-reading
let’s talk about the following questions.
Q1. What’s the difficulty with the exploration of the moon?
Q2.Do you think it is rewarding to explore the moon?

Q1. What’s the difficulty with the exploration?

It is money-consuming and time-consuming.
The force of gravity is hard to break away from when the rocket gets off.
The moon is an unknown world and there may be a lot of danger to the life of astronaut.
Q2.Do you think it is rewarding to explore the moon?

The moon is rich in natural resources.
The moon is a mysterious travelling destination.
Reading
Scan the passage to get the topic of each paragraph.
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
2. Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's." I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.
3. When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.
4. Leaving the moon's gravity was not as painful as leaving the earth's. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased. Again we were pushed hard into our seats as we came back to land. "That was very exhausting but very exciting too," I said. "Now I know much more about gravity! Do you think we could visit some stars next time?" "Of course," he smiled, "which star would you like to go to?"
topic: a visit to the moon

returning to the earth





Paragraph 1
leaving the earth
Walking on the moon
Paragraph 2
Paragraph 3
Paragraph 4
Listen to Para 1-2 and find the answer to the following questions.
With whom did the writer visit the moon? And how?
What happened when the rocket got off the earth?
Would they feel any gravity near the moon?
Reading
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
2. Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's." I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.
Listen to Para 1-2 and find the answer to the following questions.
With whom did the writer visit the moon? And how?
Reading
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
2. Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's." I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.


I visited the moon with by .
Li Yanping
space ship
Listen to Para 1-2 and find the answer to the following questions.
2. What happened when the rocket got off the earth?
Reading
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
2. Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's." I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.



2. We were into the seat and felt it hard to talk.
pushed back
Listen to Para 1-2 and find the answer to the following questions.
3. Would they feel any gravity near the moon?
Reading
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!
2. Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth's gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. "Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground." I asked. "We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth's." I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.



3. They would feel the moon’s pull even if it’s not as as the earth’s.
strong
Listen to Para 3 and tell true or false.
Things would be heavier on the earth than on the moon.

It is less free to move on the moon than on the earth.

3. The writer fell over because the ground was rough.

3. When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.

Read Para 3 and tell true or false statement.
Things would be heavier on the earth than on the moon.

T
3. When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.




Read Para 3 and tell true or false statement.
2. It is less free to move on the moon than on the earth.

F
3. When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.



Read Para 3 and tell true or false statement.

3. The writer fell over because the ground was rough.

F
3. When we got there, I wanted to explore immediately. "Come on," I said. "If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!" I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. "Oh dear," I cried, "walking does need a bit of practice now that gravity has changed." After a while I got the hang of it and we began to enjoy ourselves.



Read Para 4 and circle word describing the returning trip.
4. Leaving the moon's gravity was not as painful as leaving the earth's. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased. Again we were pushed hard into our seats as we came back to land. "That was very exhausting but very exciting too," I said. "Now I know much more about gravity! Do you think we could visit some stars next time?" "Of course," he smiled, "which star would you like to go to?"
4. Leaving the moon's gravity was not as painful as leaving the earth's. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased. Again we were pushed hard into our seats as we came back to land. "That was very exhausting but very exciting too," I said. "Now I know much more about gravity! Do you think we could visit some stars next time?" "Of course," he smiled, "which star would you like to go to?"





Read Para 4 and get the right word to describing the returning trip.
frightening
amazing
exhausting
exciting
less painful
1. Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful.
李彦平向我解释说，在我们的航行中会有三次引力的改变，而第一次的改变将是最强的。
句子中谓语动词explained后面接了两个由that引导的宾语从句，其实第一个宾语从句的引导词that可以省略,但第二个that不能省。
仿写：1. 他告诉我说他来自意大利，他的父亲曾经到过中国。
He told me he came from Italy and to China.

that his father had come
Language points
2. We are too far from the earth now to feel its pull," he explained, "so we feel as if there is no gravity at all.
李彦平解释说：“现在我们离地球太远了，感觉不到地球的拉力，所以我们好像一点儿也感觉不到地球引力了。
这句话中系动词feel后面接了由as if 引导的表语从句，所表述的内容是客观事实，所以没有用虚拟语气。
仿写：1. 尽管这是我第一次到这个小镇，我感觉自己在这住了好多年一样。
Although it was my first trip to this town, I felt as if I
here for many years.

had lived
3. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s.
当我们更接近月球时, 就会感到月球的引力在拉我们。但是, 月球的引力不像地球的引力那么大。
feel / watch / see / find / hear… +sb. + doing / being done
感官动词接现在分词作宾语补足语，强调动作正在进行
仿写：1. 我们看着太阳正在树后面落下。
We behind the trees.
2.我感觉有人正跟着我,感到非常害怕。
I felt myself and felt very frightened.


watched the sun setting
being followed
4. I cried, "walking does need a bit of practice now that gravity has changed."
我大声说，“重力改变了，看来走路也的确需要练一练了。”
now that同since相似，引导原因状语从句，语气较弱，强调人们已知的事实。
仿写：
既然大家都理解了，我就不再作解释了。

____________________________ , I won’t make further explanation.

Now that everyone has understood it
5. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.
而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟然是在地球上的两倍，因而我摔倒了。
1)“A + be + 倍数 + as +形容词原级 + as + B”.
2)“A + be + 倍数 +形容词比较级 + than + B ”
3)“A + be + 倍数 + the +名词 (size, length, amount) + of + B”

I regretted having paid ______________ (两倍那么多)for it as you.
The number of students here is ________________(三倍那么多) than before.
The newly broadened square is ________________(四倍那么大) of the previous one.
　??
twice as much
three times bigger
four times the size
Homework
1. Find more information about space exploration.
2. Review the language points in the passage.