(共43张PPT)
Unit 4
Astronomy: the science of the stars
Using language
A visit to the moon
Of course not, because there is no air, no water, no conditions for life to exist.
3. Do you think there is really anyone living on the moon? Why?
No, she is accompanied by her rabbit.
2. Does she live alone ?
She is Chang E and She lives in a palace on the moon.
1. Who is the girl? Where does she live?
Questions:
Temperature : -183 ℃ to 127℃
日常知识知多少?
1
Which country first sent people up to the moon?
A. USA B. the Soviet Union C. China
日常知识知多少?
2
Who was the first person landing on the moon?
Armstrong
Yang liwei
Tom Cruise
Issac Newton
Armstrong-walking on the moon(in1969)
What did he say
to the world just
at that time?
“one small step for a man, one giant leap(飞跃) for mankind”.
“这是个人迈出 的一小步,
但却是人类迈出的一大步 。”
Yang Liwei
Do you know who he is?
the first Chinese astronaut(宇航员)
to go into space in Oct,2003
space cabin
Leaving the earth
They are floating weightlessly(失重地)!
In space cabin
If you fall from a tree, what will happen to you?
We will fall to the ground.
There is gravity.
why?
1. the force of gravity _________2. spaceship ____________
3. rocket __________4. pull _____________
5. float _________6. spaceship cabin ____________
7. weightlessly ________8. exhausting ______________
9. escape the pull of the earth’s gravity_______________
10. lessen the weight____________11. in space ______________
n.宇宙飞船
n.火箭
拉力;牵引力
v.漂浮
太空舱
adv.失重地
adj.使人筋疲力尽的
exhausted
逃离地球的引力
减少重量
在宇宙空间
Key words and expressions
重力
(push)
v.称…重量/n.重量/adj.失重的
lesson n.功课
反
A visit to the moon
In a moment , We’ll follow LiYanping, an_____________by___________ to the moon .
astronomer
spaceship
time order B.feeling order
C.figure order D.story order
Fast reading
Task1: Read the passage quickly to complete them.
1.What is the writing form ?
biography (传记)
Travel journal (旅行日记)
C. essay(散文)
2.What is the writing order of the text ?
Task2:Listen while Skimming the 4 paragraphs quickly, and match the topic of each paragraph:
Para1
Para2
Para3
Para4
1. The things I did on the moon.
2. We came back to the earth.
3. Last month, we visited the moon.
4. How the force of gravity changed when we traveled from the earth to the moon.
Reading skills: pay attention to the first two sentences.
The writer visited the moon by spaceship. ( )
2. The force of gravity would change four times on their journey. ( )
3. When they left the earth, the gravity was strong. ( )
4. When in space, they felt as if there was no gravity at all. ( )
5. When they were on the moon, they would not feel the gravity
because there was no gravity on the moon. ( )
6. Though the gravity has changed, they can walk the same way
as on the earth. ( )
F
F
F
Task 1 True or false
T
T
T
three
Careful-reading
A. Leaving the earth
B. In space
C. On the moon
Gravity
Weight
1.as if … no gravity
2.would be the most
powerful
3.not as strong as
on the earth
3.gradually his weight
lessened.
1.floated weightlessly
around in spaceship
2.less than
on the earth
Task2: Read P2--3and match the changes of gravity and weight
Careful reading( 分段阅读)
What happened to me when I tried to step forward?
Para 3
I was carried twice as far as on the earth and fell over.
1.Why was returning to the earth very frightening?
Para 4
2.How did I feel?
Because fire broke out on the outside of the spaceship as the earth’s gravity increased.
I was very exhausted but very excited too.
Read the text again and choose the best answer.
1. Why was the spaceship not falling back to the earth?
A. Because it was too far from the earth to feel its pull.
B. Because it was too big
C. Because it was far from the moon.
*D. Not mentioned in the text.
2.Which one is NOT true according to the passage?
A. The moon’s gravity is not as strong as the earth’s.
B. We enjoyed ourselves on the moon.
C. Walking on the moon was not very easy.
D. Leaving the moon’s gravity was more painful than leaving the earth’s.
was not as painful as
3.Which of the following can replace the phrase “now that”?
A.“since” B. “when” C. “while” D. “where”
4.Returning to the earth was very_____.
A. interesting B. exciting
C. frightening D. amazing
课文短语与句子考点梳理
Find out the useful phrases (1 min)
1.有机会去做某事
2. 做一次太空旅行
3.向某人解释某事
4.离开,出发
5.接近...
6.高兴,振奋
7.既然
8.掌握,了解
9.(不好之事)突发;爆发
1. have a chance to do sth.
2. make a trip into space
3. explain to sb. sth.
4. be off
5.get closer to
6. cheer up
7. now that
8. get the hang of
9. break out
(break-broke-broken)
完成语法考点并把句子翻译成中文
1. 我的朋友李彦平是一位天文学家。上个月我有幸得到一个机会同他一起去太空旅行。
1 Last month I was lucky enough to have a chance _______( make)a trip_____ space with my friend Li Yanping, ______astronomer.
2. 我们乘宇宙飞船参观了月球。
2 We visited the moon ______ our spaceship!
3. 在启程以前,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。
3 Before we left, Li Yanping explained___me that the force of gravity ______change three times on our journey and _____ the first change would be the most powerful.
to make
into
an
in
to
would
that
分析:句中两个that引导的是____从句,都是作________的直接宾语;两个that都不可省略。
(有双宾语的句子中,作直接宾语的从句中的that不可省略。)
宾语
explain
4. 这种引力太强了,以至于我们彼此间都不能说话了。
4. ____was so hard that we could not say anything to each other.
5. 随着我们离地球越来越远,渐渐地这个重力慢慢减小,我在太空舱中失重的漂浮着。
5._______(gradual)the weight _______ (less) as we moved far away from the earth. And I floated___________ (weight)around in our spaceship cabin.
6. 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,所以我们感觉好像没有地球引力了。”
6. We are too far from the earth now _________(feel) its pull," he explained, "so we feel as if there is no gravity at all.
It
Gradually
lessened
weightlessly
to feel
7. 我立刻感到很高兴,由于失重我在太空舱里飘来飘去,我望着(身后的)地球越来越小,而(前方的)月球越来越大。
7. I cheered up immediately and floated weightlessly around in our spaceship cabin _________(watch)the earth become ______(small) and the moon larger.
watching
smaller
表伴随和主语I是主动关系
8. 如果我在月球上呆的时间足够长的话,我甚至可能长得更高,我的体重肯定也会变得更轻!”
8.I might even grow ______(tall) if I stay here long enough. I shall certainly weigh less!"
9. 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。
9.But ______I tried to step forward, I found I was carried twice as far as on the earth and fell over.
taller
when
1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yan ping, an astronomer.
此句中,enough是副词“足够地;充分地”用于修饰形容词、副词、
动词,表示程度。
adj / adv / v + enough to do sth.
eg. The boy is old enough to go to school.
Key sentences and language points
have a chance to do sth
eg.I had a chance to go abroad last year.
get close to 靠近, 接近, 指动作
be close to 距……近, 指状态
The school the post office.
2.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.
1)
is close to
2). as strong a pull as同样/强的/一股拉力
French is _______________________ English.(同样/难的/一门学科)
as difficult a subject as
归纳拓展:as+adj.+a/an+n.+as...像……一样的……
as+adj./adv.+as...像……一样……
not so/as+adj./adv.+as...不如……那样……
[即时跟踪]
(1)他跟班上其他任何一个同学一样,是个勤奋的学生。
He is anyone else in his class.
(2)这本字典不如你想象的那样有用。
This dictionary is you think.
(3)你的包和我的一样贵。
Your bag is mine.
(4)她花掉的钱和你花掉的一样多。
She spent you.
as hard?-working/diligent a student as
not as/so useful as
as expensive as
as much money as
3.We watched, amazed as fire broke out on the outside
of the spaceship as the earth’s gravity increased.
(1)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 _________ .
(战争,争吵,疾病等)爆发
unnoticed
The American Civil War broke out in 1861.
美国内战爆发于1861年。
(2)分析:第一个as解释为____________;
第二个as解释为____________;
当......时候
随 着
(3)break out
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 分解;发生故障;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
辨析 break out, take place, happen, occur
break out 意为“发生、爆发”,常指战争、灾难、疾病
或者争吵等事件的发生。
take place 意思是“发生、举行、举办”,一般指事情按预
先的安排发生或事情发生有某种原因
happen 意为“发生、碰巧”,一般用于偶然或突发性事件。
sth happen to sb 某人发生某事
sb happen to do sth 某人碰巧做某事
occur 强调呈现于人的知觉、心、脑。常用“It occurs / occurred
to sb...”表示“某人忽然想起……”。
It occurred to me that I had left the door unlocked.
它与happen, take place, occur等词的用法一样,是不及
物动词,不能带宾语,不能用于进行时和被动语态。
①An accident to the poor man yesterday.
② The next Olympics will in 2020 in Japan.
③ When the Second World War , Anne’s family
had to hide only because they were Jews.
④ It to me that Joe might be able to work out
the problem for us.
broke out
occurred
take place
happened
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.
辨析 now that, since, because, as, for和because of
now that=since,常译为“既然,鉴于”,强调人们已知的事实,表示关系上的自然的结果;一般位于主句前。
because表示直接的原因,常用于对why的回答。其从句一般位于主句后。
for主要用于书面语,表示推断的间接的原因,或对前一分句补充说明理由,一般不放在句首。
as引导原因状语从句时语气比because弱,只说明一般的因果关系;其从句一般放在主句前。
because of意为“由于,因为”,是介词短语,后面接名词或动名词。
【即讲即练】
① 既然你不太舒服,你就留在家里吧。
② 因为他喝醉了所以他认不出回家的路。
③ 这些书应该是给小孩看的,因为里面有好多卡通画。
④ 我妈妈是音乐教师,所以我很小就开始弹钢琴。
you are not feeling well, you may stay at home.
He couldn’t remember the way home he was drunk.
These books should be intended for children, there are
many cartoon pictures in them.
my mother is a music teacher, I began to play the
piano at an early age.
Now that
because
for
As
5. cheer up : 欢呼, 喝彩, 感到高兴, 使高兴
cheer sb up 使某人振作起来
cheer sb on为某人加油
cheerful adj.快乐的;令人振奋的;兴高采烈的
cheers (用于祝酒)干杯;谢谢
他带她去听音乐会来使她高兴。
He took her _____________ to ____________.
to the concert
cheer her up
6.But when I tried to step forward, I found I was carried
twice as far as on the earth and fell over.
倍数表达法: A比B大(长、高、宽等)n倍
1). A + be + 倍数+ as+形容词原级 + as +B
2).A + be + 倍数+ the +名词(size大小, length长, width宽, height高, depth深, weight重, amount数量) + of + B
3).A + be + 倍数+形容词比较级 + than + B
这条河是那条河的五倍宽。
1._________________________________
This river is five times as wide as that one.
This river is five times the width of that one.
2._______________________________
3._________________________________
This river is four times wider than that one.
这块石头的重量是那块石头的三倍。
1._________________________________________________
2._________________________________________________
3._________________________________________________
This stone is three times as heavy as that one.
This stone is three times the weight of that one.
This stone is twice heavier than that one.
7. watch out vi.密切注意,当心,提防
We are asked to watch out for the small mistakes in exams.
eg: Everybody , the bus is taking a sharp turning.
【拓展1】近义短语
look out 小心;留神 be careful 小心
【拓展2】与out相关的短语
hang out 挂出;闲逛 run out 用完
come out 出来;出版 point out指出
carry out 执行;完成 pick out 挑选;辨认出
figure out 解决;算出;想出 work out 解决;制定出
find out 找出 set out 出发
put out 扑灭;出版
watches out
2. She spent the afternoon ______ on her back in the pool.
3. It seems difficult at first, but you’ll soon _______________ it.
4. You have to _________ because there are land-mines (地雷)
all over the place.
watch out
floating
get the hang of
float; now that; get the hang of; watch out; pull
练习
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)
1. You ought to have a good rest ________ you’ve finished the work.
now that
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. His grandfather lives in a lonely village which is far _____ his house.
6. The leaves fall __________ the trees and blow about in the autumn wind.
7. As a matter of fact, I didn’t know him____ all.
from
from / off
at
Summary
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 heavy. Gradually the weight l_______. when I was in space, it d__________. we f_______ weightlessly in the spaceship cabin and I c_____ ___. when I was on the moon, I was surprised to find walking needs lots of practice n__ ____ gravity changed. Returning to the earth was very f_________. we were amazed to watch fire b____ ____ on the outside of the ship.
ravity
essened
isappeared
loated
heered up
ow that
rightening
reak out
1.Read the text again.
2.Master useful expressions.
Homework
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