外研版英语八下M3U2-reading 课件

(共20张PPT)
Unit 2
We have not found life on any other planets yet.
Reading
Mercury 水星
Earth 地球
Mars 火星
Saturn 土星
Neptune 海王星
Venus 金星
Jupiter 木星
Uranus 天王星
Look at the picture and talk about what you know about Chinese spaceships.
Shenzhou-9 is a manned spaceship.
When did we send it
Where did we send it
How long did it stay in space
When did it return
Who are the astronauts
on 16th of June 2012
Jiuquan, Gansu Province.
Thirteen days.
on 29th ot June 2012
Liu Yang, Jing Haipeng, Liu Wang
Liu Yang Jing Haipeng Liu Wang
1. Anyone out (在远方)there
2. Life on the earth
3. The sun and other stars
4. The stars at night
Look at the picture and the four titles, and tell what you expect (期望)the passage to talk about.
Learning to learn: when you read a passage with a title and pictures, think about the words you may find in the passage, and the questions you may want to ask before you start to read.
Read the passage and choose the best title for it.
√
The 2&3rd Para.
2.Put the words and expressions from the smallest to the largest :_____________
A. galaxy B. planet C. solar system D. star E. universe
B
D
C
A
E
Which statement is true
A: Seven planets go around the sun.
B: there are only stars in the galaxy.
C. The solar system is larger than the galaxy.
D: the environment of the earth is different from
that of other planets in the solar system.
√
None of them has an environment
like that of the earth.
Careful reading
3. Draw the relationship between them.
the solar system
the Galaxy /
the Milky Way
the universe
Our solar system is a small part of a much larger group
of stars and planets, called the Galaxy or the Milky Way.
Scientists have also discovered many other galaxies in
the universe.
Spaceships have travelled to ____________ and_______________________. But not travelled _______________________yet,
because it is too_______.
The 4th Para.
the planet Mars
outside the solar system
other stars in our Galaxy
far
The 5th Para.
Is there life out the solar system in space
We do not know the answers… yet.
1. The earth is a star.
2. The sun is a star.
3. There is more than one galaxy in the universe.
4. The light from the stars in other galaxies has
travelled for a long time to reach us.
5. Scientists have received many messages from
space.
6. Scientists have visited most of the universe.
Check the true sentences:
√
√
√
Make lists of what we have and have not known or done about the Galaxy according the passage.
We have…
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
We have not…
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
1. There has been life on the earth for hundreds of millions of years.
2. Scientists have discovered many other galaxies in the universe.
3. Scientists have sent spaceships to the planet Mars to take photos.
4. They have even sent spaceships to travel outside the solar system.
1.We have not found life on any other planets yet.
2. We have not known how large is the universe.
3. No spaceship has travelled far enough to reach other stars in our Galaxy.
4. We have not known if we are alone or there is life out there in space.
…
Revise the language
points of unit 2.
2. Recite the key sentences in the passage of activity 2
3. Do exercises of M3U2 in your workbook.
注意：none 与no one（nobody） 的区别：
none既可指人也可指物，通常与表范围的of 短语连用；no one(=nobody)只能指人，不能与of 短语连用。
如：_________ of the reasons was true.
A. None B. No one C. All
(2) none与数量有关，可回答how many问句，表示“一个也没有”；而no one表示“什么人也没有”，可回答who问句。如：
-Who are you speaking to -_________.
-How many students are there in the room
-_________.
A
No one
None
Key points
that是指示代词。为避免重复，可用 that 或 those 来
代替前面已提到过的人或事物；
The air in the countryside is fresher than _________in the city.
The streets in the city are wider and the buildings are taller than ________ in the county.
The environment is much cleaner than ________ in the city.
that
those
that
However, no spaceship has traveled far enough to reach other stars in our Galaxy. 然而，没有一个航天器去到足以到达我们银河系其他恒星那么远的地方。
…enough… to do
adj./ adv. + enough + to do sth. 足够…，可以…
not + adj./ adv. + enough + to do sth. 不够…，不可以…
(1) 我们有足够的钱花。
We have ___________________________.
(2) 他跑得够快，很快追上了我们。
He ran __________________ catch up with us soon.
(3) 他年龄不够大，照顾不了自己。
He _______________________________________.
enough money to spend
fast enough to
isn’t old enough to look after himself
Scientists think that there has been life on the earth for
hundreds of millions of years. However, we have not
found life on any other planets yet.
在地球上
成百上千
数百万
亿万
explanation
The earth is a planet and it goes around the sun. Seven
other planets also go around the sun. None of them has an
environment like that of the earth, so scientists do not think they will find life on them. The sun and its planets are called
the solar system, and our solar system is a small part of a
much larger group of stars and planets, called the galaxy or
the Milky Way. There are billions of stars in the Galaxy,
and our sun is only one of them.
绕着转
它们中没有一个
be called 被叫做
太阳系
一小部分
一个大的多的星群
银河
几百亿
…之一
none of … 表示（三个以上）一个也没有。做主语时，谓语动词可用单数或复数
Scientists have also discovered many other galaxies in the universe.
They are very far away and their light has to travel for many
years to reach us. So how harge is the universe It is impossible to
imagine.
在宇宙里
不得不
这简直无法想象
It is +adj for sb. to do sth.
reach =arrive at/ in+地点=get to
Scientists have sent spaceships to the planet Mars to take photos.
They have even sent spaceships to travel outside the solar system.
However, no spaceship has travelled far enough to reach other stars in our Galaxy.
send sth to sp.发送…到
拍照片
太阳系
adj./ adv enough to do sth足够做某事
Scientists have always asked the questions: with so many
stars in the universe, are we alone, or is there life out there in space Have there been visitors to the earth from
other planets Why has no one communicated with us
We do not know the answers…yet.
with + 名词 + 介词短语，表示伴随情况，意思是“有……”。
在太空中
其他行星
没人
no one表示“没有人”，作主语时，谓语动词常用单数形式。
communicate with sb. 与…联系/交流