50.（）

A.
A．by B.B．at C.C．with D.D．below

s="" weakness="" to="" nature,="" and="" the="" tsunami（海啸）="" that="" struck="" japanese="" coast="" in="" march,="" 2011="" has="" illustrated="" difficulty="" of="" fighting="" against="" natural="" disasters,="" even="" for="" a="" prosperous="" nation.Totally preventing tsunami-damage is impossible. But there is much that can be done to minimize damage and loss of life. Measures that can be taken include designing solid buildings, and developing early-warning systems, public education programs and evacuation（疏散） strategies. Moreover, the approach of a tsunami is possibly picked up by the sensors of complicated international warning systems. Countries can use radio and television broadcasts as well as loudspeaker networks to warn the public.But an early warning system depends on how far the tsunami strikes, if it's close by, the warning system is not going to be very effective. When people are faced with an unstoppable force like a tsunami the massive waves created by events like underwater earthquakes, the best course of action for them is to get inland and to the higher ground as quickly as possible.66. The first paragraph tells us that_________.67. To prevent tsunami-damage, the following measures can be taken EXCEPT_______.68. According to the passage, which of the following can cause a tsunami?69. When a tsunami happens, the best course of action for people is to______.70. Which of the following statements is correct according to the passage?'>

Passage TwoIt is a terrible illustration of man's weakness to nature, and the tsunami（海啸） that struck the Japanese coast in March, 2011 has illustrated the difficulty of fighting against natural disasters, even for a prosperous nation.Totally preventing tsunami-damage is impossible. But there is much that can be done to minimize damage and loss of life. Measures that can be taken include designing solid buildings, and developing early-warning systems, public education programs and evacuation（疏散） strategies. Moreover, the approach of a tsunami is possibly picked up by the sensors of complicated international warning systems. Countries can use radio and television broadcasts as well as loudspeaker networks to warn the public.But an early warning system depends on how far the tsunami strikes, if it's close by, the warning system is not going to be very effective. When people are faced with an unstoppable force like a tsunami the massive waves created by events like underwater earthquakes, the best course of action for them is to get inland and to the higher ground as quickly as possible.66. The first paragraph tells us that_________.67. To prevent tsunami-damage, the following measures can be taken EXCEPT_______.68. According to the passage, which of the following can cause a tsunami?69. When a tsunami happens, the best course of action for people is to______.70. Which of the following statements is correct according to the passage?

A.man can easily defeat the nature B.tsunamis take place only in Japan C.man''s ability to cope with natural disasters is limited D.the tsunami-damage in Japan is not so terrible
问题2：
A.designing firm buildings B.developing early-warning systems C.developing evacuation strategies D.keeping the public unaware of the seriousness of tsunamis
问题3：
A.Storms. B.Massive waves. C.Underwater earthquakes. D.Floods.
问题4：
A.listen to radio and television broadcasts for information B.get inland and to the higher ground as quickly as possible C.stay where they are D.rely on the warning systems
问题5：
A.The total prevention of tsunamis is possible. B.Rich countries are less affected by tsunamis than poor countries. C.Approaching tsunamis can possibly be picked up by sensors. D.An early warning system is effective when a tsunami is close by.

There is absolutely no need to______ . We will return to the airport very soon.

A.panic B.terror C.fright D.rage

Over-working can be a _____ on both body and mind.

A.task B.burden C.bother D.weight

51.（）

A.
A．entertain B.B．encourage C.C．educate D.D．edit

A great cheer went up from the crowd as they caught ______of the hero.

A.vision B.view C.sight D.glance