2 . 根据文章内容，完成下列各句。

Have you heard of the sandstorm? It is a natural disaster. It often happens in the desert. A sandstorm is like a snowstorm. They both bring a lot of trouble to people. In sandstorms, the wind carries the sand. Sandstorms are different from other disasters(灾难). They come with a warning(前兆) but other disasters come without any warnings. So when you see that clouds have a dark colour, it means there is going to be a sandstorm.

If it doesn’t rain for a long time, sandstorms may happen. When there are sandstorms in cities, there will be no planes in the sky. It would be dangerous for the pilot(飞行员)to fly the plane because he cannot see clearly. There would also be more traffic accidents in the street. The sky is gray and people cannot see very far.

There are many deserts in Africa and Asia. Sandstorms often happen in these places. People can stop sandstorms by planting trees.

1. Sandstorm is a ________ and it often happens in the desert.
2. Both a sandstorm and a snowstorm bring ________ to people.
3. There is going to be a sandstorm if the clouds have ________.
4. Sandstorms may happen if it ________ for a long time. .
5. When sandstorms happen, the pilot cannot ________.

3 . Lan Lan, a student of Grade Seven in Lushan, was taking a drawing class in a tent on April 23. Guess what she drew—a house with wings. When the teacher asked why she did so, Lan said if her house could f     1     , it wouldn’t fall down in an earthquake.

Lan’s hometown was hit by a s     2    earthquake on April 20. At least 196 people were killed and more than 11,000 were injured. Many people became homeless. Soldiers and doctors q     3    arrived in the area, saving people and rebuilding homes. Lots of money was sent there to help all those in need.

Although we can’t prevent (阻止) an earthquake from happening, we can use some methods to r     4    harm. During an earthquake, do not jump out of high buildings because it is very d     5    . Another method is to cover your head and neck u     6    a strong table or desk. If there is no shelter (躲避处) nearby, you can also stay by a wall, and cover your head and neck with your arms and hands. And then you must keep calm and stay there u     7     the shaking stops.

Japan is a c     8     which lies on the earthquake belt (地震带) and it is very good at dealing with earthquakes. From a very young age, the Japanese are already taught how to survive (幸存) them. Students often receive earthquake training. Almost in every Japanese family you can find a survival kit (救生装备) with a flash-light, a radio, water and enough food for several days. This helps people to stay a     9    after an earthquake.

“There should be more safety t     10    at schools in our country,” said Xu Jiannong, an education expert in Beijing. There is no more truth than this when one’s life is the most important of all.