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Unit3课后答案+课文翻译

Unit 3

Vocabulary Study

I.

1.sank

2.clear

3.rainfall

4.drought

5.Flowering

6.loose

7.pores

8.graze

9.spine 10.trapped 11.vent ure 12.fertile

II.

1. barren

2. moisture

3. distant

4. is (highly) unpredictable

5. harsh

6. sharp

7. emerges

8. store

9. scheme 10. readily 11. highly 12. traditional

III.

1. in

2. out

3. to

4. against

5. from

6. at

7. of

8.on

9. on 10.on 11. from 12. away, into 13. On 14. in 15. in

CLOZE:

CBDAB DBCCA ACDAC CADAB

Translation:

1.Many stuies indicate that thedesert air is so dry that it contains any moisture.

2.Although the children form age 5 to 16 must go to school in Britain according to the laws ,about 1%of the children still can not read

when they have primary school.

3.After heared the news ,I knew i fell vestless again within a fornight .

4.We think unanimouly to answer the question ,we must look more closely at the faces.

5.Though out the world, goverment at all levels are taking effectively measures to prevent enviro nment pollution.

6.Some people think that the objective items ,such as multiple choices, should be used for an exa mation, others donot agree, because

they believe that this kind test has some bad effect on students leaning.

Unit 3

1.沙漠里除了太阳和沙子以外还有其他的东西,在这两页中你会发现植物、动物和人如何设法在这片贫瘠的荒漠上生存下来。

2. 所有的沙漠都十分干燥。我们谈到沙漠时,脑海里便浮现出酷热干燥、细沙遍地的亚热带沙漠。它们分布在北回归线和南回归线附近,暖气流在赤道上升下降,形成了晴朗少雨的气候。撒哈拉沙漠占非洲面积的,相当于世界上第四大国家——美国。撒哈拉并不一直都是沙漠,几百万年前被冰雪、海洋、森林和草原所覆盖。

3.沙漠上的风通常很干燥,有些沙漠处在“雨影”地区,然而当风吹过高原时,便失去它们所携带的水分。有些沙漠处在大陆中部,等风吹过这些沙漠时,便失去了它们从遥远的海洋所吸收的湿气。亚洲的蒙古戈壁沙漠就是内陆沙漠的例子。阿塔卡马沙漠位于智利北部,是地球上最干燥的沙漠。有部分地区从1570年到1971年接近四百年的时间没降过雨,其他地区也没有降雨记录。含沙量最多的沙漠是塔克拉玛干沙漠,沙暴能把沙土卷起3048