Unit 4 Astronomy: the science of the stars(Period 5　Using language: Extensive reading)

2. get students to read the science fiction stories.
能力目標
1. develop students’ reading skills by extensive reading and enable them to learn how to use different reading skills to read different reading materials.
2. have students learn to use the useful new words and expressions correctly.
3. enable students to understand the passages and know more about astronomy and gravity.
情感目標
1. stimulate students’ interest in astronomy and space travel.
2. develop students’ sense of group cooperation and teamwork.

教學過程
→step 1 revision
1. check the homework exercises.
2. ask some pairs of students to come to the front and act out their dialogue to review the expressions of giving instructions.
3. have some students talk about isaac newton, albert einstein and stephen hawking as well as their ideas on gravity.
→step 2 warming up
 let students to brainstorm the following questions:
 what country first sent people into space?
how many countries have succeeded in sending people into space so far?
who first landed on the moon?
who is the first chinese astronaut to go into space?
do you want to visit the moon?
→step 3 reading
1. ask students to read the passage and then describe the three ways in which gravity changed for li yanping and how his weight changed.
1) write down the three ways in which gravity changed for li yanping.

 the way gravity changed
left the earth 
in space 
on the moon 

suggested answers:
 the way gravity changed
left the earth the gravity became very strong.
in space the gravity disappeared.
on the moon the gravity became very light.
2) his weight changed three times, too. now write them down.

 how his weight changed
left the earth 
in space 
on the moon 

suggested answers:

 how his weight changed
left the earth he became very heavy.
in space he had no weight and could float around like a feather.
on the moon he was about one-sixth of his weight on the earth.
2. ask students to read the passage aloud to the tape and underline all the useful expressions or collocations in the passage. let students read them aloud and copy them down in their exercise book after class as homework. try to keep them in mind.
collocations: be lucky enough to do, have a chance, make a trip into space, explain sth. to sb. , the force of gravity, be off, the pull of the earth’s gravity, fall back to the earth, fall to the ground, too far from the earth, as if, at all, get close to, cheer up, come on, less than, down the steps, step forward, twice as far as, fall over, a bit of, now that, after a while, get the hang of, break out, on the outside of, be pushed into