1 . Earthquakes usually come without warning. What should you do if this happens to you? An earthquake is dangerous, but there is still something you can do to protect yourself.
Stay calm as the earth begins to shake.
Your chance of survival in an earthquake goes up if you can keep calm. Staying calm is not easy, but it can save your life.
If you are inside when the earthquake starts, hide under a table or a bed.
You need to have something strong over your head to protect you from falling objects. Do not stand near walls or windows and stay out of the kitchen. The kitchen is dangerous because of many glass objects.
If you are outside, get to an open area as fast as you can.
Stay away from buildings and tress. If you are in a car, pull over (靠边停) to a place where there are no trees or tall buildings and stay in the car. If you are close to the sea, try to get as far away from the water as possible. Earthquakes can cause huge waves (浪) that can really harm the people nearby.
When the earthquake is over, there is still plenty of danger.
For example, fires often come with an earthquake. If you see a fire, quickly move outdoors to an open area.
Always remember to hope for the best but prepare for the worst.
根据短文内容，选择最佳选项。
1. What does the underlined word “survival” mean in Chinese?
| A．坍塌 | B．废墟 | C．生存 | D．失踪 |
| A．Hide under a table. | B．Hide under a bed. |
| C．Stay out of the kitchen. | D．Stand near walls or windows. |
| A．To stay away from buildings and trees. |
| B．To get as far away from the sea water as possible. |
| C．To run into your house quickly to take something important. |
| D．To drive your car to a place where there are no trees or tall buildings and stay in the car. |
| A．sandstorms | B．fires | C．snowstorms | D．rainstorms |
| A．The ways to stay calm. |
| B．The ways to stay away from tall buildings. |
| C．The ways to move outdoors to an open area. |
| D．The ways to protect yourself when an earthquake happens. |
Do you know what makes lightning（闪电）?Why does lightning strike（击打）?
Lightning strikes happen when ice and water in clouds rub（摩擦）together, and cause atmospheric（大气层的）changes. When this happens, it creates a static charge（静电）．Lightning can strike inside the cloud, between two clouds or between a cloud and Earth. It’s the last kind of strike that is the most dangerous for humans.
Lightning can be very dangerous. Every year, lightning kills people because it can start big fires or because it reaches a temperature of 28, 000 ℃. About 1, 000 people are hit by lightning every year in the United States, and about 100 of them die as a result.
Lightning makes people shocked, and it happens all over the world! Scientists think that there are more than three million lightning strikes every day in the world—that’s thirty strikes every second（秒）. An American man Roy Sullivan, who worked in a park, survived from the most lightning strikes. Between 1942 and 1983, he was hit seven times! And he keeps the highest world record.
Lightning is sure not something to play with. When lightning strikes, it’s best to stay inside a large building. To stay safe, do not stand under trees, on hills or near water. Also, do not lie down on the ground, or the electricity may go through you and cause a heart problem.
1. Lightning strikes ________.| A．happen thirty times each day | B．happen when there are big fires |
| C．can reach a very high temperature | D．can kill all those who work in a park |
| A．幸存 | B．选择 | C．遇难 | D．失忆 |
| A．About 1000 people. | B．About 28,000 people. |
| C．About one tenth of people. | D．About one fourth of people. |
| A．Under a tree. | B．Near a river. |
| C．On the top of a hill. | D．Inside a building. |
What has happened? These are just the types of problems a solar storm（太阳风 暴）might cause. You may not think of storms as putting our society in danger. But today, a solar storm is as serious as other bad events, such as earthquakes.
A solar storm is caused by solar flares（太阳耀斑）: large explosions（爆炸）near the sun that can give off lots of energy. The strong energy can stop the satellite systems（卫星系统）that control our computers, telecom networks and so on. These storms can even cause the power to go out for weeks or months.
In the past few months, scientists have recorded some of the strongest sun flares in years. The most recent one happened around Valentine’s Day, 2011. It caused radio and satellite signals to go down in some northern cities in China.
“Solar flare activity is going to be much worse than what we’ve seen in the past. We’re not talking about a few cities losing power, it could be half of the country, maybe more.” SolarStormWarning.com, a US website about space weather, warned.
Scientists say that little can be done to predict such a storm. Governments around the world are trying to work together before the next storm, although they are not sure when that may happen.
根据短文内容，选择最佳选项，并在答题卡上将选定的答案字母标号涂黑。
1. According to the passage, a solar storm can cause many problems EXCEPT that
.
| A．earthquakes happen |
| B．mobile phones have no signals |
| C．people cannot get online |
| D．the power may go out |
| A．telecom networks | B．solar storms |
| C．large explosions near the sun | D．US websites |
a.solar flares give off lots of energy
b.people can’t get online with their computers
c.solar storms happen
d.satellite systems are stopped
| A．a-b-c-d | B．a-c-d-b | C．c-a-b-d | D．c-b-a-d |
| A．call for scientists to predict when the next solar storm will happen |
| B．tell people how to solve the problems caused by solar storms |
| C．introduce what solar storms are to people |
| D．ask people to work to prevent the solar storm from happening |
| A．电池 | B．标志 | C．力量 | D．信号 |
