问题 选择题

全国一些重点城市及珠三角地区最近新增了一项空气质量监测项目,其监测对象是(  )

A.二氧化硫(SO2

B.一氧化碳(CO)

C.PM2.5粒子

D.氮的氧化物(NxOy

答案

A、有害气体主要有一氧化碳、二氧化硫、二氧化氮等气体,早已列入,故选项错误;

B、有害气体主要有一氧化碳、二氧化硫、二氧化氮等气体,早已列入,故选项错误;

C、PM2.5对空气质量和能见度等有重要的影响,是新增的一项空气污染指数,故选项正确;

D、有害气体主要有一氧化碳、二氧化硫、二氧化氮、氮的氧化物等气体,早已列入,故选项错误.

故选C

完形填空

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。答案填在第II卷的相应位置。

Health is the most important thing in the world. Nothing is more important than health. If one takes away our money, houses, cars, or even our clothes, we can still survive. 小题1:  That is why we always try to eat in a healthy way and exercise regularly.

How can we keep healthy? In order to eat healthily, I usually avoid eating food high in fat, like French fries or cookies, which are junk foods. 小题2: Besides, I only eat little meat.

小题3:  Taking exercise every day helps us build a strong body. Regular exercise is an important part of keeping me healthy.

What’s more, I think friends are an important part of one’s health. 小题4:  I always feel better when I am with friends than when I am alone. When I am with my friends, I always laugh. Laughing is also an important part of health. It is good to stay with my friends.

By eating properly and exercising regularly, I can keep my body at a proper weight and keep healthy. By spending time with my friends, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage them. 小题5:

A.Many studies show that people with a narrow range of social contacts often get sick.

B.There are some people who like staying alone, but they keep healthy.

C.On the other hand, doing exercise is very important.

D.But if our health was taken away, it is certain that we would surely die.E. I think a strong will is necessary if we want to keep healthy.

F. I eat a lot of vegetables and fresh fruit which are full of vitamins.

G. Some people appear fat because they often eat too much.

多项选择题