Everyone tries to get to school on time. But when bad weather gives you trouble, can you still make it before the bell rings?
In northern China during spring, big sandstorms 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（內(nèi)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 you 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.
小題1:In which season do sandstorms usually happen?
A．In spring.B．In summer.C．In autumn.D．In winter.
小題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.
小題3:The underlined phrase “tear down” in the sentence means “_________”.
A．使……哭泣B．弄倒C．摧殘D．加固
小題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.
小題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

小題1:A
小題1:D
小題1:B
小題1:D
小題1:D

小題1:根據(jù)In northern China during spring, big sandstorms often make trouble for students and everyone else.可知選A。
小題1:根據(jù)Most of the sand comes from Gansu and Inner Mongolia（內(nèi)蒙古）.可知選D。
小題1:聯(lián)系下文farmers’ houses.可知是弄到農(nóng)民的房子。故選B。
小題1:通過短文描述結(jié)合嘗試，噪音不是沙塵暴引起的。故選D。
小題1:短文雖然說了沙塵暴可以引起哮喘，但沒有說這事哮喘病的主因。故選D。
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