Question

Rivers are one of our most important natural resources. Many of the world’s great cities are 1.______ (locate) on rivers, and almost 2._______ country has at least one river flowing through it that plays 3.________ important part in the lives of its people.

Since the beginning of history, people 4._______ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. 5._________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation for the people 6.______ live along their banks.

However, large cities and industries that are located on rivers often make problems. As the cities grow 7._______ size and industries increase in number, the water in the rivers becomes 8.________ (pollute) with chemicals and other materials. People are learning the 9._________ (important) of doing more to keep their rivers clean 10.________ they want to enjoy the benefits of this natural resource.

Answer 1

1.located

2.every/each

3.an

4.have been using/have used

5.Besides

6.who/that

7.in

8.polluted

9.importance

10.if/because

【解析】

1. located on.是固定搭配，意为位于。因为cities不是人，不能执行动作，所以要用被动语态。同时还有be located in/at的用法。故填located。

2. every/each在这里作形容词，意为每一个，由” and almost 3. country has at least one river flowing through it”可知，这里既不能填all，因为与almost不能同时使用，也不能填no/none，因为那不符合实际情况。故填every/each。

4. an important part in是一个固定搭配，意为在……扮演一个重要角色。同时也考查冠词用法。因为important开头的元音字母发元音，不能填a，故填an。

5. Since the beginning of history, people 6. (use) rivers for transportation.”可知，这里的意思应该是很久以前，人们就使用河流来进行运输。而到现在人们也还是在使用河流，故是从过去某时开始一直持续到现在的东西，并且还将持续下去。故填have been using/have used。

7. rivers give water to drink, water for crops, and chances for fun and recreation for the people 8. live along their banks.” 说的是另外的用途，故填besides。

9. people，指人，则可以用who/whom，但后面的句子缺少主语，所以关系代词充当句子主语，whom只能充当宾语，who既可做宾语也可作主语。故填who。

10. size是固定搭配，意为在尺寸或规模上。这里是指城市在规模上不断发展壮大。同后文” industries increase in number”中的in number属于同种用法。故填size。

11.

12. importance of为固定搭配，意为……的重要性。The和of之间应填名词。故填importance。

13. People are learning the _________ (important) of doing more to keep their rivers clean”人们认识到保持他们的河流干净的重要性，后文” they want to enjoy the benefits of this natural resource.”他们想要享受这种自然资源带来的好处。前后文的意思是顺承的，但后文也可以做前文的假设，故填if/because。

考点：考查语法知识。