人教高中英语必修3 Unit 4 Astronomy: the science of the stars Using language课件（共43张PPT）

(共43张PPT)
Book3 Unit 4
Using language：
A VISIT TO THE MOON
Reading
A VISIT TO THE MOON
spacewalk

What country first sent people into space?
How many countries have succeeded in sending people into space so far?

Who first landed on the moon?
The moon is our close cosmic(宇宙的) neighbor, and humans have been exploring its surface ever since they first developed telescopes.
The first person that stepped onto the moon
Neil Armstrong
Neil Armstrong was born in Ohio in 1930. He was a pilot in the U.S. Air Force before he entered the space program. In July of 1969, he commanded the Apollo 11and landed on the moon. He made history by walking on the moon firstly.
Photos about the moon
space capsule
Today India, China, and Japan all have lunar exploration projects in development. The United States’ own plan is perhaps the most ambitious — to return humans to the moon by 2020 and eventually use the moon as a staging point for human flight to Mars and beyond.
China’s entire lunar exploration project is divided into the three steps of orbiting, landing, and returning.
The Chang’e-1 satellite, China’s first lunar probe satellite, was launched on Oct. 24, 2007.
China’s first astronaut---Yang Liwei
Read the 4 paragraphs quickly, and find out the topic of each paragraph.
Para 1:
Para 2:
Para 3:
Para 4:
Last month we visited the moon.
How the force of gravity changed when we traveled from the earth to the moon.
The things I did on the moon.
We returned to the earth.
1. The passage is mainly about ____?
A. introduction of the moon
B. the gravity that I felt on my
way to the moon
C. my visit to the moon
D. my friend Yanping, an
astronomer
Read the text carefully and choose the best answer.
C
2. According to the text, we know that the
force of the gravity would change
_____ times.
A. 2 B. 3 C. 4 D. 5
3. When did the author feel strongest
of the gravity of the earth?
A. On the moon.
B. On the half way to the moon.
C. At the very beginning
D. On their leaving from the moon
C
B
4. What causes the writer to feel that
he becomes weightless on the moon?
A. Spaceship
B. Gravity
C. His friend
D. His Good feelings of the moon
B
Read the passage carefully and then describe
the three ways in which gravity changed for
Li Yanping and how his weight changed.
The pull of gravity became very strong
as he left the earth’s atmosphere. His
weight is normal.
2. It disappeared when he was in space. He
is weightless.
3. It was very light when he was on the moon.
He weighs less than on earth.
It became very light.
The gravity became very
strong.
The gravity disappeared.
The way gravity changed
Left the earth
In space
On the moon
He became very heavy.
He had no weight and could
float around like a feather.
He was about one-sixth of
his weight on the earth.
The weight changed
Left the earth
In space
On the moon
Last month I visited the moon with my friend. Before we left, I was told the force of g_____ would change three times on our journey. Then we took off. As we left the earth, I became very h_____. Gradually the weight l_______. When I was in space, it d__________. We f_______ weightlessly in the cabin and I c_____ ___. When I was on the moon, I was surprised to find out even walking needs lots of practice n__ ____ gravity changed. The returning of the earth was very f_________. We were amazed to watch fire b____ ____ on the outside of the ship.
gravity
heavy
lessened
disappeared
floated
cheered up
now that
frightening
break out
Retell the text.
language points
get close to 靠近, 接近, 指动态变化
be close to 距……近, 指状态
The school is close to the post office.
1. 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。
与get相关的短语:
get along 相处融洽, 进展等
get down to 开始认真对待, 开始认真考虑
get on 上车
get through 到达; 通过; 办完,
花光(钱、时间等)。
get to 到达
get down to; get on; get through;
get to; get over; get up
1. Don’t talk too much. Let’s ___________
working.
2. Hurry up, or we’ll be late to ______ the bus.
3. It’s easy to _______ the difficulty.
4. I have ___________ a lot of papers.
5. She managed to ______ the village.
get down to
get on
get over
got through
get to
2. cheer up : 欢呼, 喝彩, 感到高兴, 使高兴
当看到球队的到来, 人群欢呼起来。
_____________________ when they
saw the team arrive.
他带她去听音乐会来使她高兴。
He took her _____________ to ____________.
The crowd cheered up
to the concert
cheer her up
3. But when I tried to step forward, I found
I was carried twice as far as on the earth
and fell over.
1) “A + be + 倍数 + as +形容词原级 + as + B”.
This tree is three times as tall as that one.

2) “A + be + 倍数 +形容词比较级 + than + B ”
The Yangtze River is almost twice longer than
the Pearl River. 长江差不多比珠江长两倍。

4. ... “walking does need a bit of practice now
that gravity has changed.”
……既然引力改变了, 走路也的确需要练一练了。
now that同since相似, 语气较弱, 强调人们
已知的事实。
既然你忙, 就让我给你做吧。
Now that you are busy, let me do it for you.
既然人都齐了, 咱们开始干吧。
Now that everyone is here let’s start work．
6. We watched, amazed as fire broke out on the
outside of the spaceship as the earth’s gravity
increased.
1) watch …do/doing : 观看, 注视
我们看着太阳正在树后面落下。
We _____________________ behind the trees.
每一天当他们看到植物生长, 他们的心里
都充满了希望。
Every day as they _______________________ ,
their hearts were filled with hope.
watched the sun setting
watched the plant grow
2) amazed 是过去分词, 此处做状语用。
他进来的时候没有人注意到。
He came in _________ .
3) break out与happen, take place, come out等
词的用法一样, 是不及物动词, 不能带宾语,
不能用于被动语态。
战争爆发
The American Civil War broke out in 1861.
美国内战爆发于1861年。
unnoticed
发生争吵 他们之间发生了争吵。
A quarrel broke out between them.
(火灾)发生 昨晚他家里失火了。
　A?fire?broke?out?in?his?house?last?night.?
break down 打破; 毁掉; 破除; 坍塌; 坏掉
break in 破门而入; 打断
break away from 脱离(政党); 打破(陈规 );摆脱
break through 突围; 突破; 冲垮; 克服
break up 打碎; 拆散; 分裂; 分解
break one’s word/promise 食言; 说话不算数
[考例] I was still sleeping when the fire ____, and then it spread quickly.
(广东2006)
A. broke out B. put out
C. came out D. got out
[点拨] put out 扑灭；come out出来, 出版；get out（使）出来。由it spread quickly（火迅速蔓延）可知选A。
选用方框内合适的词或短语，并用其适当形式填空。(其中有一个多余选项)



There was a _____ of people around the club entrance.
2. You ought to have a good rest _____ you’ve finished the work.
mass
now that
float; now that; mass; get the hang of; watch out; pull
3. She spent the afternoon ______ on her back in the pool.
4. It seems difficult at first, but you’ll soon _______________ it.
5. You have to _________ because there are land-mines all over the place.
watch out
floating
get the hang of
float; now that; mass; get the hang of; watch out; pull
II . 用适当的介词或副词填空。
1. Come on. Cheer ___! You’re not the only one who failed in the test.
2. Since there are many problems that can’t be solved, the war is likely to break ____.
3. Last Saturday, I went on a visit ____ the Great Wall with some of my friends.
4. Is there anything else you would like me to explain ___ you?
up
out
to
to
5. Water vapor is lighter, otherwise it would not rise _____ the air.
6. His grandfather lives in a lonely village which is far _____ his house.
7. The leaves fall __________ the trees and blow about in the autumn wind.
8. As a matter of fact, I didn’t know him ____ all.
into
from
from / off
at
III .根据括号内的提示翻译下列句子。
1.老师幽默的讲话让我们很振奋, 之后班里的气氛也轻松起来。
(atmosphere; cheer up)
The atmosphere in the classroom relaxed after the teacher’s humorous talk cheered us up.
3. 让我们十分失望的是, 战争最终在那两个国家之间爆发了。(to one’s disappointment; break out)
Now that we have finished the design, the company will do the construction in its turn.
2.既然我们已经完成了设计, 就该由公司来进行建设了。(now that; in one’s turn)
To our great disappointment, a war broke out between the two countries at last.
6. 我感觉风从一扇敞开的窗子里正往我脸上吹。(feel ... doing)
5. 这个小女孩看见他偷了那本书, 这件事是真的。（watch ... do）
It's true that the girl watched him steal that book.
I felt the wind blowing on my face from an open window.
Homework
1. After class, sum up what you have learnt
from them.
2. Writing：
Last week, I received a letter from my former
student, he also want to visit the moon, but he
doesn’t know what problem will he meet in space
and what to take, he asks me for help, can you
help me give him some suggestions and write a
letter back to him?