Question

Everyone tries to get to school on time. But when bad weather gives you trouble（麻烦）, can you still make it before the bell rings?

In northern China during spring, big sandstorms（沙尘暴）often make trouble for students and everyone else. When the sky is dark with sand, buses and cars all move much more slowly. Sometimes, people can’t even see for 20 metres.

Sandstorms usually happen in spring. This year, sandstorms started in late March. They have happened in more than 10 provinces (省)  in northern China this year. More than 70 million people have had problems in those places because of the sandstorms.

People in southern China don’t have to worry about this kind of bad weather. Most of the sand comes from Gansu and Inner Mongolia（内蒙古）. In northern China, lots of places have few trees and don’t get much rain. People there have been cutting down too many trees. When there aren’t many trees, the ground can’t keep enough water. Over the years, the ground dries up and turns to sand. When spring comes and the ice melts（融化）, the ground becomes looser（更松散的）. Strong winds take the loose sand into the sky.

Sandstorms are bad for people’s health. If people breathe（呼吸） too much sand, they could cough or have asthma（哮喘）.

Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never get back home. The winds also tear down farmers’ houses.

What can you do to stop sandstorms? Here’s an idea: Ask your parents to help you plant some trees this spring.

If you see people cutting down too many trees, tell them about the dangers of sandstorms, and ask your government to stop them from cutting.

1. In which season do sandstorms usually happen?

A. In spring.    B. In summer.

C. In autumn.    D. In winter.

2.Which of the following provinces in China is often hit by sandstorms?

A. Fujian Province.    B. Yunnan  Province.

C. Jiangsu Province    D. Gansu  Province.

3. The underlined phrase “tear down” in the sentence means “_________”.

A. 使……哭泣   B. 弄倒   C. 摧残    D.加固

4. According to the passage, what cannot be caused by sandstorms?

A. Health problems.

B. Traffic problems.

C. The loss of farm animals.

D. Noise pollution.

5.Which is not stated in the passage？_______________ .

A. Trees can help keep enough rain water

B. More trees need to be planted

C. Some people are doing harm to the environment

D. Sandstorms are the main cause of asthma（哮喘）

Answer

1.A

2.D

3.B

4.D

5.D

【解析】

试题分析：本文主要讨论恶劣天气即沙尘暴，给人所带来的麻烦以及不便，尤其在中国北方的春天，大范围的沙尘暴会给学生及每个其他的人带来麻烦，公交车和私家车行动缓慢，能见度不足20米；沙尘暴对人的健康也会带来危害，如哮喘病；沙尘暴，也给中国的农民带来很多问题，有时他们的羊会消失在沙尘暴中，有时他们的房屋会被大风吹倒啊；既然沙尘暴给我们的生活带来各个方面的麻烦，作者也提出了阻止或者减少沙尘暴危害的一些办法。

1.1】细节信息题。此题根据问题In which season do sandstorms usually happen? 询问沙尘暴经常发生在哪个季节？定位到信息句Sandstorms usually happen in spring. 故可推知答案。故选：A。

2.2】细节信息题。此题根据问题Which of the following provinces in China is often hit by sandstorms? 以下中国的哪个省经常受到沙尘暴袭击，定位到信息句，Most of the sand comes from Gansu and Inner Mongolia（内蒙古）可以推知，大部分沙尘来自于甘肃省和内蒙古即可推知答案。故选：D。

3.3】词义猜测题。此题根据问题定位到tear down所在的句子，The winds also tear down farmers’ houses，根据常识，大风会刮倒房屋，即可推知答案。故选：B。

4.4】推理判断题。此题根据问题what cannot be caused by sandstorms需要寻找沙尘暴所不能破坏的东西，A. Health problems，文中在第此段提出哮喘病Sandstorms are bad for people’s health. If people breathe（呼吸） too much sand, they could cough or have asthma（哮喘）推知此项正确； B. Traffic problems. When the sky is dark with sand, buses and cars all move much more slowly，推知沙尘暴也影响了交通问题，推知此项正确；C. The loss of farm animals. Sometimes their sheep get lost in the storms and never get back home，推知沙尘暴期间动物也会消失；推知此项正确；故选D。Noise pollution，文中未有出现。

5.5】推理判断题。此题根据问题Which is not stated in the passage寻找文中没有叙述的东西，使用排除法。A. Trees can help keep enough rain water 根据文中此句When there aren’t many trees, the ground can’t keep enough water.推知A项正确； B. More trees need to be planted 根据文中此句Ask your parents to help you plant some trees this spring. 推知B项正确；C. Some people are doing harm to the environment. 根据文中此句In northern China, lots of places have few trees and don’t get much rain. People there have been cutting down too many trees. When there aren’t many trees, the ground can’t keep enough water. Over the years, the ground dries up and turns to sand，推知人类对环境进行了多年的破坏推知C项正确； D. Sandstorms are the main cause of asthma（哮喘），此句在文中没有直接说明，故此句错误。故选：D。

考点：自然灾害科普知识短文。