仁爱版英语九年级上册4单元3话题SectionD

1a
Read and understand
Read the passage and choose the best title.
1. Is there Life out there? 2. Our Planet 3. The Stars at Night
Read 1a and answer the questions.
Universe
stars
['ju:nivə:s] n. 宇宙
planets space
Scientists is always exploring the universe.
the solar system (the sun and its planets)
a small part of the universe our green earth the third planet from the sun go around the sun
Байду номын сангаас
Homework
Maybe there are aliens living on another star or planet. Would you like to make friends with them? Please introduce the earth to them. Please write a letter to them.
We are wondering if we are alone
Is there life on other planet? Why has no one from other planets sent a message to us?
Have they tried to send information to us?
review
主动变被动
1. We can’t find aliens in space. 2.You must do your homework carefully. 3.We will visit Mars one day. 4.We are exploring the universe all the time. 5.We call them the solar system. 6.Scientist have launched many spaceships. 7.Students should clean the classroom every day. 8.Yesterday,Mr. Li made us do a lot of homework.
1. Have the scientists found life on other planets? No. 2. How many planets go around the sun? Eight. 3. What’s called the solar system? The sun and its planets are called the solar system. 4. Some spaceships have gone beyond the solar system, have they? Yes. 5. Do you think there are lives on other planets in space?
Retell 1a
scientists
life launch
explore
the universe the solar system the earth
go around
the sun
spaceships
seven other planets go beyond the solar system
2
Do you know about spaceships
Why do humans launched spaceships? To explore other planets. go beyond the solar system
No life is discovered in space except on earth.
1b
Work alone
Match the letters in the picture with their names according to 1a. ( B A C C
A
)1. the solar system )2. the earth
( D
(
(
)3. the universe
)4. the sun