(共16张PPT)
Unit 2
We have not found life on any other planets yet.
生命 任何其他的
The moon is smaller than any(任何) planets in the solar system.
none
environment
/ /
that
solar
system
solar system
group
galaxy
/ /
pron.没有一人
n.环境
pron.那个
adj.太阳的
n.系统
太阳系
n.群/组
n.星系
--How many of you have watched
The Wandering Earth 3
--None./ None of us. 强调数量
--Who has reached the Mars
--No one. 指人,不与of 连用
universe
/ /
light
impossible
/ /
out
communicate
/ /
n.宇宙
n.光线
adj.
不可能的
adv.在远方
v.联系
It's impossible to imagine how large
the universe is. It's possible to land on the moon. 干某事是(不)可能的
1. Talk about Chinese spaceships.
Shenzhou-9 is a manned (人造的) spaceship.
我国神舟十三号载人飞船于2022年10月16日0时23分56秒发射升空,三名航天员翟志刚,王亚平,叶光富将在我国空间站生活6个月。
Are we alone
2.Read the passage and choose the best title for it。
1. Anyone out there 2. Life on the earth 3. The sun and other stars 4. The stars at night
√
life on the earth
the solar system
spaceships to Mars
questions
other galaxies
前后呼应
3. Check (√) the true sentences.
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.Spaceships have visited most of the universe.
Anyone out there
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.
2. Listen and read.
there be的现在完成时
--Has there been life on the...for hundreds of millions of years
--Yes, ________ ________./ No, _________ _________.
数亿年
外太空有人吗？
there has
there hasn’t
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.
像…那样
绕着…转
庞大很多的星系
一小部分
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 large is the universe It is impossible to imagine.
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.
许多其他的
到达：reach/arrive in(at)/get to
干某事足够...
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 answer…yet.
快速写出以下过去分词的动词原形
been_______ found________discovered_________ sent_______ travelled_________ asked__________
communicated_________________
be
find
discover
send
travel
ask
commuicate
与...联系
拥有
4. Complete the passage.
communicate environment none solar system universe
Is there life on other planets There are seven other planets
in our_____________, but (2)________of them has a(n) (3)
____________like that of the earth. spaceships from the earth have done surveys of the other planets, but they have not found any life there.
Why has no one from other planets tried to (4)___________ with us It is true that scientists have not discovered life on other planets in the (5)__________yet,but some scientists believe that they will find it some day.
solar system
none
environment
communicate
universe
5.Write a passage according to the pictures and the tips.
a message from.../people on Mars/don’t know how to...
The spaceship has landed on Mars.
It has discovered people on Mars. The people on Mars don’t know how to send us a message and how to visit us on the earth.But we are sure we’ll make friends with them one day.
1.Astronauts have______landed on the mars, have they
A. already B. yet C. never
2.We_______found ET yet so far.
A. have B. haven’t C. hasn’t
3.In 1961, People________on the moon.
A. land B.have landed C.landed
4._______been many people missing in the accident.
A. They have B.There have C. There has
反义疑问句：后肯前否
关键词：we/yet
过去时间in 1961,
与现在无关
there be结构的现在完成时态，people为复数
查阅资料，发挥想象空间。根据Activity 6中的提示续写更多信息完成英语短文，与同学交流朗读。
Homework
