八年级上 Module 3 Journey to space Unit 2 We haven’t found life on other planets yet .

英语八年级上Module 3 Journey to Mars
Unit 2学案
编制：陈法友 审核：
教学目标：
1. To use the title and the picture to help you understand the main idea of a passage
2. To use present perfect tense.
重点难点:
The present perfect tense.
一、课前预习
根据首字母完成单词
1. He is a . No one lives with him.
2. Many p look small in space because they are far away from the earth .
3. One thousand million is a b .
4. There are the earth ,the sun ,the moon and many other stars in the u .
5. The maths problem is very difficult. It`s b my ability(能力).
二、课堂探究
To use the title and the picture to help you understand the main idea of a passage(使用标题和图片帮你理解文章大意)：
Choose the best title
三、课堂巩固
1科学家们认为世界上存有生命已有几百万年的历史了。
Scientists _____ ______ there has been life _____ _____ for ______ ______ years.
2我们还没有在其他行星上发现生命。
We haven’t ______ _______ on other ______ ______.
3科学家们已经在宇宙中发现了许多别的星系。
Scientists ______ _______ _______ many other ______ in the _______.
4弄清楚宇宙有多大是困难的。
It is hard ______ _______ _______ large the _______ is.
5为什么没有人从别的行星上给我们发送信息呢？
Why has ______ _______ _______ other planets _______ us a message
四、拓展训练
A.阅读理解
In the universe, there is the sun, the moon, the earth and many stars. Through our geography lessons, we know the earth goes round the sun, and the moon goes around the earth. We have day and night because the earth keeps turning all the time. When our part of the earth turns to the sun, it is day. When our part of the earth turns away from the sun, it is night. Just because the moon is closer to the earth than the sun, it looks much bigger than the sun.
The sun is bright enough to give out very strong light. The moon cannot give any light at all, but it looks very bright, too. Why In fact, the light from the moon comes from the sun. There are many other planets in the universe. All of them go around the sun. But of all these planets, only on the earth there are living things and people can only live on the earth, too. But at 9am, on October 15th, 2003, Chinese pilot Yang Liwei was sent up to space. He went around the earth 14 time in 21 hours. It was the first time for Chinese to get into space.
( )1. We find the sun_______ than the moon because it is_____ to us.
A. bigger; farther B. smaller; closer C. bigger; closer D. smaller; farther
( )2. When our part of the earth turns away from the sun the other part of the earth is_______.
A. night B. day C. evening D. Sunday
( )3. People and living things can live on the _______.
A. earth B. Mars C. moon D. sun
( )4. It look Yang _______ to travel around the earth every circle(圈).
A. 6 hours B. 14 hours C. 1.5 hours D. 21 hours
( )5. Which of the following is TRUE according to the passage
A. The moon goes around the earth, and it cannot give out any light at all.
B. The moon goes around the sun, and its light is from the sun.
C. The earth goes around the moon, and people can only live on the earth.
D. Of all the planets, only the earth travels around the sun.
B.冲刺中考
( )1.I tried several jackets on,but __________ of them looked good.
A.both B.either C. none D.neither
( )2.The old man lives ________ in a town.He lives _________,but he doesn’t feel _ _______.
A.alone,lonely,alone B.lonely,lonely lonely
C.alone,alone,lonely D.lonely,lonely,alone
( )3.We need friends to chat with,or we will feel _________.
A.alone B.lonely C.loneliness D.lone
( )4.It is hard ________ this sentence.
A.understand B.to understand C.understood D.understanding
( )5.-How much time do you __________ surfing the Internet every week
- Less than an hour.
A.cost B.pay 　　　　　　Ｃ.take D.spend