单选题

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 even use their bones for fertilizer. 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. Along with salt, other minerals are left after evaporation. 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. Natural sponges become cleaning aids. Seaweed becomes food of many kinds—even candy, and ice cream—as well as medicine. Believe it or not, flesh water is another gift from the sea. We cannot drink ocean waten Some of its contents may cause illness. But ocean water becomes flesh water when the salts are removed. In the future. We will find ourselves depending more and more on flesh water from the sea.
The sea gives US food, fertilizer, minerals, water, and other gifts. What do we give the sea? Garbage. We pollute the ocean when we use it as a garbage dump. Huge as it is, the ocean cannot hold all the water that 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' re finally learning that if we destroy our seas, we might also destroy ourselves. Hopefully, it is not too late.

单选题 Which of the following best summaries the main idea of the passage?

A、 Human beings have been taking a lot of useful things from the sea and polluting it meanwhile.
B、 It is high time that we stopped polluting the sea.
C、 Human beings will be dependent on the sea for flesh water one day.
D、 The sea is are very generous in giving and we should take from it as much as possibl

【正确答案】 A

【答案解析】此题考查的是全篇的主旨大意。浏览全篇之后我们就会发现本文的主题就m现在文章的开头：As long as we have been 0n earth, we have used the sea around Us. we take from the ocean, and we give to it(自从我们生活在地球上以来，我们就一直在利用我们身边的海洋；我们从中获取，也给它“回报”)，通过后面的内容我们可以知道我们同报给海洋的是垃圾，因此A选项很好地概括了文章的大意。B选项也是作者想要传达给读者的一个信息，但它不是文章的主体，因此排除；C选项在文中第二段的结尾部分也有表述，但也不是文章的主要内容，故排除；选项D与作者在文中表达的保护海洋态度背道而驰，故不正确。

单选题 What can we get from seawater by simple evaporation?

【正确答案】 C

【答案解析】根据题干关键词evaporation定位到第二段四至七段：One way to get salt is to place seawater in a shallow basin and leave it until it evaporates. Along with salt. other minerals are left after evaporation. Much gold and silver drift dissolved in the waters of the sea. too. But the sea does not give them up by simple evaporation(从海水中得到盐的一种途径是把海水放到浅盆中，直到它蒸发完毕。海水蒸发之后，和盐一起留下来的还有其他矿物质。很多流失的金和银也曾经溶解在海水中，但是海水不会通过简单的蒸发过程就放弃了它们)。很显然，通过简单的蒸发过程我们可以得到盐和其他一些矿物质，但不包括金和银，因此本题的正确答案为C。

单选题 We can get all the following from seaweed EXCEPT.

【正确答案】 D

【答案解析】根据题干定位到第二段第十一句：Seaweed becomes food of many kinds-even candy and ice cream-as well as medicine(海草不但可以制成很多种食物——甚至糖果和冰激凌——还可以被制成药品)，可见前三个选项都是海草制品，只有D选项中的清洁用品是第十句中提到的海面的用途。因此本题的正确答案为D。

单选题 Dumping garbage into the ocean can lead to.

单选题 What does the author feel about what people are doing to the sea?

【正确答案】 B

【答案解析】作者在最后一段表达了自己的心情：We re finally learning that if we destroy our seas, we might also destroy ourselves. Hopefully, it is not too late(我们终于逐渐认识到，如果我们毁了海洋，可能也会毁掉我们自己。但愿还不太晚)，说明作者的心理充满了担忧，因此本题的正确答案为B。A显然与最后一句中的hopefully不符，排除：C选项说作者漠不关心，显然与文章内容不符；D选项说作者充满了乐观情绪，显然作者面对这么严重的海洋污染是乐观不起来的，从最后一句话的语气也知道D选项不能够准确描述作者的心情。