C．how Libbrecht takes pictures of snow

　　D．what Libbrecht plans to do next

　　7．Why does Libbrecht take pictures of snowflakes?

　　A．To study their shapes. B．To enjoy the snow.

　　C．To find pleasure. D．To win a prize.

　　8．Libbrecht advised kids who want to study snowflakes to________.

　　A．watch carefully B．buy a good camera

　　C．be patient D．spend much time

　　C

　　A little knowledge about earthquakes can increase your chance of surviving. The keys are education and preparing in advance(提前). The earthquake safety tips below will not make you an expert. However, they could make a life­saving difference if you find yourself in an earthquake situation.

　　What to do when the shaking begins：

　　·DROP, COVER, AND HOLD ON! DROP to the floor and get under something for COVER and HOLD ON until the shaking stops. Move only a few steps to a nearby safe place. Stay indoors until the shaking stops and you're sure it's safe to exit. Stay away from windows.

　　·If you are in bed, hold on and stay there, protecting your head with a pillow.

　　·If you are outdoors, find a_clear_spot away from buildings, trees, and power lines. Drop to the ground.

　　·If you are in a car, slow down and drive to a place with few big things. Stay in the car until the shaking stops.

　　What to do after the shaking stops：

　　·Check yourself for injuries. Protect yourself from further danger by putting on long trousers, a long­sleeved shirt, strong shoes, and work gloves.

　　·Check others for injuries. Give first aid for serious injuries.

　　·Look for and put out small fires. Get rid of the dangers. Turn off the gas if you smell gas or think it's leaking(漏气)．

　　·Listen to the radio for instructions.

　　·Expect aftershocks. Each time you feel one, DROP, COVER, AND HOLD ON!

　　·Inspect (仔细检查) your home for damage. Get everyone out if your home is unsafe.

　　·Use the telephone only to report life­threatening emergencies.

　　9．What would be the best title for the passage?

　　A．Earthquake safety tips B．What is an earthquake?

　　C．What to do after an earthquake D．What to do during an earthquake

10．How is the passage mainly developed?