第五部分 补全短文
第一篇
What We Take from And Give to the Sea
As long as we have been on earth, we have used the sea around us. We take from the ocean, and we give to it.
We take fishes from the ocean - millions of kilograms of fish, every year, to feed millions of people.We take minerals from the ocean. One way to get salt is to place seawater in a shallow basin and leave it until it evaporates.Much gold and silver drift dissolved in the waters of the sea, too1. But the sea does not give themup by simple evaporation1. Other gifts from the sea are pearls, sponges and seaweed. Pearlsbecome jewelry2. Seaweed becomes food of many kinds evencandy, and ice cream - as well as medicine. Believe it or not, fresh water is another gift from thesea. We cannot drink ocean water. But ocean water becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and moreon fresh water from the sea.
The sea gives us food, fertilizer, minerals, water, and other gifts. What do we give the sea?Garbage. Huge as it is, the ocean cannot hold all the water that wepour into it. Dumping garbage into the ocean is killing3 off sea life2. Yet as, the world populationgrows, we may need the sea and its gifts more than ever.
We are finally learning that if we destroy our seas, we might also destroy ourselves. Hopefully, it is not too late.
词语：
Fertilizern.化肥
evaporatev.蒸发
Spongen.海绵
seaweedn.海草
Garbagen.垃圾
注解：
1. Muchgoldandsilverdrift dissolved in the waters of the sea, too.
还有不少金和银的漂流物溶解在海水里。
2. Dumping garbage into the ocean is killing off sea life.
把垃圾往大海里倾倒就是在把海洋生物杀绝灭尽。
训练：
A. Natural sponges become cleaning aids.
B. We pollute the ocean when we use it as a garbage dump.
C. The area of the sea is becoming smaller and smaller.
D. Along with salt, other minerals ~.re left after evaporation.
E. We even use their bones for fertilizer.
F. Some of its contents may cause illness.
答案与题解：
1. E前面一句讲了大家从大海捕捉很多的鱼供大家食用，这句接着说讲甚至连鱼的骨头也被用来做化肥。Even这个词在这里了解地表示了这两句话的关系。
2. D这句话的前一句讲的是大家可以通过水的蒸发从海水中得到一种矿物质盐，这句话则说除去盐以外，水蒸发将来还有别的矿物质留下来。
3. A前面讲到了除去矿物质外，大海还给了大家珍珠、海面和海草这三样东西。接着作者分别用一句话来讲明每一样东西的作用。先讲了珍珠，最后讲的是海草，多以这中间的一句应该是讲海绵的作用了。
4. F前一句话说了大家不可以喝海水，这句话讲解了为何不可以喝，非常自然。
5. B前面一句话用garbage一个单词有力地回答了大家给予大海什么这个带有自责的问题，这句话则是对这个简单回答的具体讲解。
