1. When the north pole is towards the sun, the sun´s rays shine down quite straight on the northern part of the earth, while they slant down towards the southern part.
    北极斜向太阳时，阳光直射在北半球，斜射在南半球。

2. 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。

3. The sun´s rays could not wedge their way through the barrage of foliage.
    阳光透不过树叶的屏障。

4. 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。

5. The air exploded in blinding lightning and colour, the rays shooting outward as in a child's drawing of the sun, and Kaz was flung to the ground so violently that her two front teeth broke off; she had sunk into unconsciousness.
    天空中爆发出眩目的闪电和色彩，喷射出的一道道光就像孩子画笔下的一道道太阳光。和子被重重地摔在了地上，磕掉了两颗门牙。她陷入了昏迷。

6. Now the slanting rays cover a much larger surface of the earth than the same number of rays coming straight down.
    此时，斜射的光线要比同样数量的直射的阳光在地表的照射面积大。

7. Next, x-rays show your mother has a lung infection — a frequent problem with stroke patients.
    而后，X光透视显示，你母亲肺部受到感染，这是中风病人的常见病症。

8. He developed 150 or so X-rays, his usual output, to celebrate.
    他以平日的工作量，冲洗大约150张X光胶片来庆祝这个日子。

9. Rays from the sun excite and energize the atmosphere of the earth, awakening it to flow, to movement, to rhythm, to life.
    太阳光刺激了地球的大气层，并给予它能量；阳光使空气开始流动，产生节奏，获得生命。