必修3　Unit 4　Astronomy: the science of the stars

要 點 梳 理

高效梳理?知識備考●重點單詞

1．astronomy n．天文學→astronomer n．天文學家

2．system n．系統(tǒng)；體系；制度

3．theory n．學說；理論→theoretical adj.理論上的

4．globe n．球體；地球儀；地球→global adj.全球性的；全世界的

5．violent adj.猛烈的；激烈的；強暴的→violence n．暴力→violently adv.猛烈地

6．atmosphere n．大氣層；氣氛

7．unlike prep.不同；不像→dislike vt.不喜歡

8．presence n．出席；到場；存在→present adj. & n. & v．在場的；目前，現(xiàn)在；出席；頒發(fā)，授予

9．harmful adj.有害的；傷害的→harm n．危害，害處→harmless adj.無害的

10．exist vi.存在，生存→existence n．存在，生存

11．puzzle n．謎；難題vt. & vi.(使)迷惑；(使)為難→puzzled adj.迷惑的→puzzling adj.令人迷惑的

12．gravity n．萬有引力；重力

13．satellite n．衛(wèi)星；人造衛(wèi)星

14．climate n．氣候

15．spaceship n．宇宙飛船

16．pull n. & vt.拉(力)；拖；牽引力

17．float vi. & vt.(使)浮動；(使)漂浮 n．漂浮物

18．mass n．質量；團；塊；大量；(復)群眾

●重點短語

1．in time及時；終于

2．lay eggs 下蛋

3．give birth to 產生；分娩

4．in one’s turn 輪到某人；接著

5．prevent...from 阻止；制止

6．block out 擋住(光線)

7．cheer up 感到高興；感到振奮

8．now that 既然

9．break out 突發(fā)；爆發(fā)

10．watch out 密切注視；當心；提防

11．cool down 冷卻

12．as well as 也；還有……

13．depend on 依靠；依賴，取決于

14．get close to 靠近

●重點句型

1．This produced a chain reaction, which made it possible for life to develop.這就形成一個連鎖反應，使生命發(fā)展成為可能。
2．But when I tried to step forward, I found I was carried twice as far as on the earth and fell over.而當我試著向前邁步時，我發(fā)覺我被送出很遠，步子的跨度竟是在地球上的兩倍，因而我摔倒了。

3．...walking does need a bit of practice now that gravity has changed.……既然重力改變了，行走的確需要一些練習。

●高考范文

(2009?陜西卷)

假定你是李華。在一個英文網絡論壇上，你看到一個名叫Grown－up的中學生發(fā)帖(post)尋求幫助，請根據帖子內容、寫作要點和要求回貼。

Grown－up Post at 18－5－2009 20：08

Hi, everyone，I'm 17 years old and I am going to university this autumn. But my mother continues to treat me as a seven－year－old. What should I do?

TOP

Last Topic　Next Topic ＋REPLY　＋NEW

寫作要點：

1．告訴Grown－up要理解母親；

2．給Grown－up提出解決問題的具體建議。

要求：

1.短文需寫在答題卡的指定區(qū)域。

2.短文詞數不少于80(不含已寫好的部分)。

3.內容充實，結構完整，語意連貫。

4.書寫須清晰、工整。

Hi, Grown－up，
As a student of your age, I understand your situation.
____________________________________________________
____________________________________________________

[范文]

Hi，Grown－up，
As a student of your age, I understand your situation. The problem you are facing is common among our teenagers. However, it should be wise not to do anything that may hurt her feelings. Here are a few suggestions.

First, it's advisable to talk more with your mom. I learnt talks help you understand each other better. They are also opportunities to let her know your ideas of and attitudes toward many things.

Second, you should learn to do your own things well, proving to your mom that you are already a “grown－up”， It's even better if you could share more of the housework, such as cleaning, washing and cooking.