Question

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

The way we cook is important. In many countries, the two choices are 1. (nature) gas or electric-powered stoves.

The World Health Organization warns that millions of people 2. (suffer) from indoor air pollution at present time, which results from the use of 3. (danger) fuels and cook-stoves in the home.

WHO officials say nearly three billion people are 4. (able) to use clean fuels and technologies for cooking ，heating and lighting. As a result, more than seven million people die from exposure to indoor or outdoor air pollution each year. Most of the deaths are in 5. （develop） countries, such as India, China and Latin American countries.

WHO officials say opening a window or door 6. （let）out the harmful air will not correct the situation 7. will only pollute the outdoors.

Nigel Bruce, 8. is a professor of Public Health at the University of Liverpool, says researchers are developing good cook-stoves and other equipment to burn fuels 9. a more efficient way.

But, this is just a start. It is urging developing countries to use 10. (clean) fuels and increase access to cleaner and more modern cooking and heating appliances（用具）.

Answer

1.natural

2.are suffering

3.dangerous

4.unable

5.developing

6.to let

7.It/That

8.who

9.in

10.cleaner

【解析】

试题解析：

1.考查形容词。通过下文的gas可知此处需要形容词以修饰名词gas，故填natural，构成短语natural gas，意为天然气。

2.考查时态。通过下文的at present time可知，这件事情是正在发生的。故选用现在进行时，填are suffering，意为正在遭受。

3.考查形容词。通过下文的fuels可知此处需要形容词以修饰名词fuel，故填dangerous，意为危险的能源。

4.考查形容词。根据上文的are可知此处需要填形容词，但是再根据句意为可知：三十亿人们无法使用干净的能源，故加上其否定前缀，填unable。

5.考查形容词。根据下文所举例子可知，这些国家都是发展中国家，故填developing，构成短语developing countries，意为发展中国家。

6.考查非谓语动词。本题考查非谓语动词担当目的状语的用法，上文的open a window or door的目的是为了让有毒的空气流通出去，故选用不定式表示目的，填to let。

7.考查代词。本句句意为：…只会污染户外。通过上下文的理解可知，这里所指内容为上文提到的开窗或门。故填it或that指代这一行为，注意首字母大写。

8.考查定语从句的关系词。本句为非限制性定语从句，先行词为Nigel Bruce，在从句中担当主语，故填who。

9.考查介词用法。本句考查固定短语in a … way，意为以…方法。故填in，意为以一种更加有效率的方法。

10.考查形容词比较级。通过下文的increase access to cleaner and more modern cooking and heating appliances可知，这里是指更加干净的能源，增加使用更干净、更现代化厨具的机会。故填cleaner。