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共用题干 What We Take From and Give to the SeaAs long as we have been on earth,we have used the sea arou...
共用题干
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 things 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.______(46)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.______(47) Much gold and silver drift dissolved in the waters of the sea,too.But the sea does not give them up by simple evaporation.
Other gifts from the sea are pearls,sponges and seaweed.Pearls become jewelry.______(48)
Seaweed becomes food of many kinds-even candy,and ice cream-as well as medicine.Believe it or not,fresh water is another gift from the sea.We cannot drink ocean water.______(49)
But ocean water becomes fresh water when the salts are removed.In the future,we will find ourselves depending more and more on fresh water from the sea.
The sea gives us food,fertilizer,minerals,water,and other gifts .What do we give the sea?
Garbage.______(50)Huge as it is,the ocean cannot hold all the water we pour into it. Dumping garbage into the ocean is killing off sea life.Yet as the world population grows,we may need the sea and its gifts more than ever.
We are finally learning that if we destroy our sea,we might also destroy ourselves.Hopeful-ly,it is not too late. ______(50)
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 things 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.______(46)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.______(47) Much gold and silver drift dissolved in the waters of the sea,too.But the sea does not give them up by simple evaporation.
Other gifts from the sea are pearls,sponges and seaweed.Pearls become jewelry.______(48)
Seaweed becomes food of many kinds-even candy,and ice cream-as well as medicine.Believe it or not,fresh water is another gift from the sea.We cannot drink ocean water.______(49)
But ocean water becomes fresh water when the salts are removed.In the future,we will find ourselves depending more and more on fresh water from the sea.
The sea gives us food,fertilizer,minerals,water,and other gifts .What do we give the sea?
Garbage.______(50)Huge as it is,the ocean cannot hold all the water we pour into it. Dumping garbage into the ocean is killing off sea life.Yet as the world population grows,we may need the sea and its gifts more than ever.
We are finally learning that if we destroy our sea,we might also destroy ourselves.Hopeful-ly,it is not too late. ______(50)
参考答案: B
参考解析: 前面一句讲到：我们从大海里捕捞大量的鱼供人们食用，接着应讲“甚至连鱼的骨头也被用来做化肥”。even清楚地提示了这两句话的关系。
前面一句讲到：我们可以通过水的蒸发从海水中得到盐。通过常识可知，除了盐之外，水蒸发以后还会有别的矿物质留下来。
前面的内容讲到：除了矿物质外，大海还给了我们珍珠、海绵和海草。接着作者分别用一句话来说明每一样东西的用途。先讲了珍珠，最后讲的是海草，中间的一句肯定是讲海绵的用途了。
前一句话说海水不能喝，接下来很自然要解释为什么不能喝。
前面用garbage有力地回答了“我们给了大海什么”，这里是对回答的具体解释。
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