Book 3 Unit4 Astronomy 复习学案

Book 3 Unit4 Astronomy 复习学案

Ⅰ.Words

1. _________ n. 天文学 12. _________ adj.有害的 23. ___________ adj. 温和的 2. _________ n. 系统 13. _________ n. 链子 24. ___________ exhaust 3. _________ n. 宗教信仰 14. __________ vi. 乘 25. ___________ n. 气候 4. _________ n. 理论 15. _________ n. 氧 26._____________reaction 5. _________ solar 16. __________ vi. 存在 27. __________ n. 物理学 6. ________ n. 十亿 17. __________ adv. 因此 28. ___________ vi. 碰撞

7. _________ n. 球体 18. _________ vt.使迷惑 29. ___________ n.太空船 8. _________ adj.猛烈 19. _________ n. 生物学 30.__________weightlessly 9. _________ dissolve 20. ___________ n.万有引力 31. ___________ lessen

10. ________ n.大气层 21. __________ n. 卫星 32. ___________ vi. 浮动 11.________ prep. 不同 22.___________ vapor 33.___________ get the hang of Ⅱ.phrases

1.及时_____________ 7.感到高兴_____________ 2.下蛋_____________ 8.既然_____________ 3.分娩_____________ 9.熟悉_____________

4.轮到某人_____________ 10.突发_____________ 5.阻止_____________ 11.密切注视_____________ 6.挡住(光线) _____________ 12.结果_____________ III. Memorize the basic knowledge on your paper. (15 minutes)

1. The moon will not be _______________（一样大的引力）the earth’s.

2. I found I was carried ________________（两倍远）on the earth and fell over. 3. After a while, I _____________（掌握）it and we began to enjoy ourselves.

4. _____________(依据)__________________________(普遍为人们接受的真理), the universe _____________(始于) a “Big Bang” that threw matter _____________________.(向四面八方)

5. (更为重要的是) is that as the earth cooled down, water began to appear on its surface.

6. (很多科学家相信的) is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. 7. They multiplied and the oceans and seas (用…填满) oxygen, which encouraged the later development of early shellfish and all sorts of fish. 8. They produced young generally by (下蛋).

9. (他们为什么会突然消失) still remains a mystery.

10. These animals (不同于) all life forms in the past, because they _______________(产生，分娩) young baby animals and produced milk to feed them. 11. Thus they have, (接着), become the most important animals on the planet.

12. They are too much carbon dioxide (把…放入) the atmosphere, which _______ heat__________(阻止) escaping from the earth into space.

13. I (感到高兴) immediately and floated weightlessly around in our spaceship cabin ___________(watch) the earth become smaller and the moon larger.

14. “Walking does need a bit of practice (既然 ) gravity has changed.” After a while I got the hang of it and we began to enjoy ourselves.

15. We watched, amazed as fire (爆发) on the outside of the spaceship as the earth’s gravity increased.

16. ________________ (作为…结果) this event, a great dust cloud formed in the sky __________ (阻挡)the sunlight. IV. 当堂检测

1. The relationship with the students is fundamental my work as a teacher. A. for B. to C. with D. of

2. The man there that he had money on the table.

A. lying; lied; laid B. laid; laid; lying C. lied; laid; lying D. lying; laid; lied

3. _______ a certain doubt among the workers as to whether he could finish the task in a short time.

A. It was B. There had C. There existed D. It had

4. The government has to close those small factories to the water of the river . A. prevent; from polluting B. protect; from polluting C. protect; from polluted D. prevent; being polluted 5. Can you see something red the distance in the water?

A. floated in B. floating in C. floated at D. floating at

6. we have gained enough knowledge of the language, we shall try to use it as much as possible.

A. Even though B. If only C. Ever since D. Now that