C．To prevent natural disasters from happening,

　　D．To apply advanced technology to disaster prediction．

　　68．Which of the following areas suffered the most severe damage?

　　A．Puerto Rico．

　　B．New Orleans．

　　C．Biloxi, Mississippi．

　　D．Galveston, Texas．

　　69．The city residents of New Orleans were unsatisfied because ___ .

　　A．their preparations were made in vain

　　B．the hurricane warning arrived rather late

　　C．the forecast hurricane did not hit the city

　　D．they suffered from a heavy hurricane attack

　　70．What does the passage mainly talk about?

　　A．The different ways of disaster prediction．

　　B．Technological advances in disaster prediction．

　　C．The benefits and preparations of disaster prediction．

　　D．The importance and uncertainty of disaster prediction．When Jack Homer is on the job, he lives in a tent．And he hunts from sunup to sundown across the plains of Montana．

　　"When I'm walking around the field looking for things, I run across snakes and, occasionally, gri bears," Homer says．Horner is curator of paleontologyHorner finds dinosaurs in the forms of fossilized bones．He uses these bones to help scientists understand how dinosaurs lived when they ruled the earth more than 65 million years ago．

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