1 . 根据文章内容，完成下列各句。

Every 30 seconds there is an earthquake. But don’t worry because only a few big ones hurt people. Here are some tips on how to stay safely in an earthquake.

If you are indoors during an earthquake, hide under a desk. Stay away from windows and anything that could fall on you.

If you are outdoors, move to a clear place. Try to be away from trees, signs, buildings and streetlights. These could fall on you.

If you are in a shop and far from the door, don’t try to run to outside and rush for exits（出口）. Everyone will be doing that and you’ll find it hard getting out. Don’t get into a lift during an earthquake. Just hide under some strong covers near you.

When an earthquake has ended, be careful because after-shocks may still happen. These are just as dangerous as the earthquake itself. So stay under the desk until you make sure it’s safe to get up.

1. Hide ________________, if you are indoors during an earthquake.
2. Try to be away from trees, signs, buildings and streetlights because these could ________________.
3. If you are in a shop and far from the door, don’t try to run to outside and ________________.
4. Don’t get into ________________ during an earthquake.
5. When an earthquake has ended, be careful because after-shocks ________________.

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 . 阅读下面短文，根据短文内容完成句子。

Typhoons in the northern part of the world have girls’ names. Sometimes they have very beautiful names. Rose is a pretty name but there was nothing pretty about Typhoon Rose. It was the worst typhoon to hit Hong Kong in fifty years.

It began to rain on the morning of Monday, August 16^th, 1971. At ten o’clock in the morning, Typhoon Rose was still 130 miles away but the wind was already blowing people’s umbrella away. The wind became stronger and stronger. The typhoon shelters（避难所） were soon full of boats. Ships that were too big to go inside the shelters put down more anchors（锚）. Some very big ships went out to sea. It is safer for a big ship to be at sea in a typhoon because it cannot be blown onto rocks. Kai Tak Airport closed. No planes were able to take off or land. At 9:00 in the evening, all the lights went out. No one slept well that night. It was difficult to sleep in such bad weather.

In Typhoon Rose, more than one hundred people died. 229 people were hurt and 66 of these had to go to hospital. 1,500 lost their homes. The people of Hong Kong will remember Typhoon Rose forever.

1. Typhoon Rose was the worst typhoon to hit _________ in 50 years.
2. When the wind became stronger and stronger, the typhoon shelters were_________with boats.
3. It was not easy for people _________ in such bad weather when Typhoon Rose came.
4. In Typhoon Rose, more than 100 people died and 1,500_________.
5. The people of Hong Kong will never_________Typhoon Rose.