1. Wood does not sink in water, it floats.
    木头在水中不沉, 而是漂在水面.

2. We helped the villager to sink a well.
    我们帮助村民挖了一口井。

3. Without the air to stop some of the sun´s heat, every part of the earth would be burning hot when the sun´s rays strike it.
    假如没有空气吸收太阳的一些热量，地球在阳光照射下就会灼热不堪。

4. Without the air to hold some of the sun´s heat, the earth would be freezing cold at night, too cold for us to live. 2
    如果没有空气储存大部分太阳热量，地球在夜晚就会冻得冰冷，人们便无法生存。

5. Water cannot sink through these hard surfaces.
    水无法渗透过这些坚硬的地面。

6. Take the plug out of the sink and let the water out.
    把水槽里的塞子拔出来，把水放了。

7. The more the rays are spread out, the less heat they give to the part of the earth they touch.
    但光线越扩散，它给予照射地区的热量就越少。

8. The stars are so fiery hot that they give off great light and heat — more than the hottest, brightest fire you can imagine.
    星星像火一样的灼热，释放大量的光和热——比我们所能想象的最热、最亮的火所发出的能量还要大。

9. The pleasant warmth of the coast turned into the fiercest kind of heat.
    海岸那宜人的温暖变成了最猛烈的酷热。

10. They carry all of the water away. Not much water can sink into the holding areas under the ground.
    它们会把所有的水都排走, 能够渗透到地下蓄水区的水就不多了。