C

                                   ★★★★★

            Big waves are very bad news indeed. History is full of examples of devastation(破坏)The biggest wave ever recorded was the one that hit Alaska in 1958,after a huge landslide (山崩) created a tsunami that peaked at 500 meters above sea level. That's not a misprint: It was more than twice as high as the :tallest building in Britain today — Canary Wharf Tower. Scientists know how high it was because the giant wave removed trees and soil from nearby mountains up to that :altitude.

           The Alaskan wave is believed to have been a tsunami caused by a landslide. Italy has been hit by as many as 67 tsunamis in the past 2 ,000 years,though none :of them was as devastating as the one that killed 230,000;people around the Indian Ocean in 2004.

           It's  useful to tell the differences between tsunamis, which are caused by geological events,and enormous waves generated by weather. But it is probable that both types will become a lot more common as a result of worldwide global warming. The oceans absorb more than 80 percent of the heat added to the climate system. As the waters heat up,wind speeds increase,storms become more violent,polar ice melts,and sea level rises.

           “Now is the time to prepare for great floods,” Lloyd, an editorial in New Scientist,advised. ”In the future,the UK's  coastal cities will be jn jeopardy due to rising sea levels,” reported Lloyd. Similarly,nine out of the world's ten largest cities are located on low-lying coastal land.

            But giant waves are not new. For centuries,sailors told of the existence of enormous waves up to 100 feet high that could appear without warning in mid-ocean and often in perfectly clear and calm weather. Researchers : had reservations until the' existence of extremely huge waves was confirmed in 1995 in Norway,where an : 84-foot wave occurred in the sea where the average of the : tallest 33 percent of waves was 39 feet.

9. How did scientists determine the height of the Alaskan wave?

   A. By comparing it with Canary Wharf Tower.

   B. By observing the damaged mountains.

   C. By watching it from a tall building.

   D. By studying the huge landslide.

10. According to the text,more giant waves will be caused by .

Ai tsunamis   B. landslides

   C. climate change   D. rising sea levels

11. The underlined words “in jeopardy” in Paragraph 4 probably mean .

   A. in place   B. in peace

   C. in danger   D. in control

12. What can we infer from the last paragraph?

   A. Giant waves are less common recently.

   B. The biggest wave ever recorded was in Norway.

   C. Enormous waves appear with warning in the ocean.

   D. Researchers had doubts about huge waves before 1995.

A易读度

Sunshine Travel Agency 1-800-555-7000 For your next vacation,book (预订) a .wonderful trip with us!

Boston,Massachusetts

    Stay at the Huntley Plaza in Boston,walk the Freedom Trail,visit ancient buildings. You can even go to a Red Sox baseball game!Your children will have a ball! $179* a night Big Sky,Montana 

    Spend a week at the Big Sky Dude Ranch where you’11 learn to ride horses and camp under the stars. That sounds fim! $89* a night 

Orlando,Florida !

    Meet Mickey Mouse!Spend your days at the theme parks ?) and your nights at the show!Restaurants,Beaches,yímv?rh (烟火) 一 we’ve got it all! $185* a night Lake Tahoe,California See the most beautiful lake in America!Climb mountains,enjoy the beautiful views and go mountain biking. Try the interesting Alpine Slide,It's an experience you’ 11 never forget! $199* a night 

New York,New York State 

    See the Statue of Liberty,the Empire State Building,and Ellis Island!Watch a Broadway show and take a carnage (四轮马车) ride through Central Park!You’ 11 have the time of? your life! $209* a night

    *?ll special prices are not valid (有效的) during the holidays,July 1 — 6 and September 3— 8.

根据材料内容选择最佳答案。

() 51. If you go to Big Sky,you can .

   A. play baseball   B. ride horses C. go mountain biking   D. take a carriage ride

() 52. If you are a show lover,how many trips can .you choose from?

   A. One. B. Two. C. Three. D. Four.

() 53. How much will you pay to spend two nights in Lake Tahoe in February?

   A. $358.   B. $360.   C. $398.   D. $418.

() 54. If you want to enjoy the special prices,you can go on holiday between .

   A. July 2—3   B. July 4—5

C. September 1—2   D. September 6—7

() 55. Where would you most probably read this material?

   A. In a diary. B. In a storybook,

C. In a report. D. In a newspaper.

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