外研版八年级下册Module 3 Journey to space Unit 2 课件（共16张PPT）

(共16张PPT)
Module 3 Journey to space
Unit 2 We have not found life on any other planets yet
________ seven other planets is like the earth.
The sun and the planets ________
_______________ .
The earth ___________ the sun.
被叫作
没有一个...
太阳系
围绕...转
goes around
None of
are called
the solar system
Let’s learn
环境
[ n'va r nm nt]
['ju:n v :s]
宇宙
A much larger group of stars and planets are called ______ or the Milky Way.
environment
universe
galaxy
['ɡ l ksi]
银河系
The ___________of the ________
is so beautiful.
Revision
go around 转动 universe宇宙
environment环境 none of 没有一个
the solar system太阳系 be called被叫做
go around
none of
galaxy
环境
太阳系
be called
Show time
Para.1
Para.2
Para.3
Para.4
Para.5
① Match titles with each paragraph.
C. Life
E. The solar system
B. Universe
A. Spaceships
D. Questions from scientists
________
________
________
________
________
E
C
B
A
Pay attention to:
The first & the last sentence of each Para.
TIPs
D
Fast-reading
② Which one is the best title of this text？
A. Anyone out there
B. Life on the earth
C. The sun and other stars
D. The stars at night
Pay attention to:
The first & the last sentence of each Para.
TIPs
2. The first & the last Para.
Fast-reading
① Read Para1 carefully and answer

1. How many years has there been life on the earth
Hundreds of millions of years.
A. 百万年 B. 千万年 C. 亿万年
2.However, we have not found life on any other planets yet.
(Read Para2 quickly and answer)
Because none of them has an environment
like that of the earth.
Careful-reading
3
2
1
4
5
② Read Para 2 carefully
Put them from the smallest to the biggest.
planet
universe
solar
system
galaxy
sun
Careful-reading
③ Read Para3&4. True(T) or False(F).
( ) 1. The light from the stars in other galaxies has
travelled for a long time to reach us.
( ) 2. There is more than one galaxy in the universe.
( ) 3. Spaceships have visited most of the universe.
KEYS
However, no spaceship has travelled far enough to reach other stars in our galaxy.
T
T
F
KEYS
Scientists have also discovered many other galaxies in the universe.
KEYS
They are very far away and their light has to travel for many years to reach us.
The distance(距离) that the light walks in one year.
Light year
(光年)
Careful-reading
④ Read Para 5 carefully and imagine：
Are we alone
Is there life out there in space
Have there been visitors to the earth from other planets
Why has no one communicated with us
alien
UFO
Careful-reading
Why has no one communicated with us
Freetalk
Be afraid of us.
The communication tools are not good.
The language is different.
...
We should study hard and master more knowledge to explore the unknown.
（掌握知识以探索未知）
TIPS
Para.2
Para.1
Para.3
Para.4
Para.5
Life？
① Planets/earth
② The solar system
③ The Milky Way/
Galaxy
Universe
Spaceships
Questions from scientists
so,or
part of...
one of...
also,and,so
however,even
or
Logical words
(逻辑关系词)
however,yet
Cause(因果)关系词
coordinator(并列)关系词
Addition(递进)关系词
contrast(转折)关系词
TIPS
so,
because,
so...that...
...
and,
or, also
both...and...
...
even,
besides,
further
...
but,
however,
yet
...
S
P
A
CESHIP
INTERN
A
TIONAL
S
P
A
CESHIP
INTERN
A
TIONAL
Homework
Must do: Workbook
Choose to do: Search for more information about the universe. Share them with your friends.
Thank you！