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23. A. activity    B. organization  C. area     D. avenue

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22. A. refreshed   B. discovered   C. threatened  D. witnessed

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21. A. huge     B. poisonous   C. delicate    D. cautions

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30. A. took      B. drove     C. chased       D. killed

答案  21-25DDBAB   26-30 C ABB B

Passage 9

(广东省惠州市2010届高三第一次调研考试)

It is estimated that about 10 million people go into coastal waters every year to get a closer look at whales.

When the eco-tourists try to have a look at the __21___mammals rising above the water line, killer whales lives are greatly__22___, though they are the top of the food chain in the sea.

“We now have more whale-watch boats than there are whales,” said Kelley BalcombBartok of an __23____ in Washington State which works with scientists to protect whales.

All this activity is causing people to show more ___24____ about the whales health and survival .Some scientists say noise from all the boat traffic may __25____ a whales sonar(声纳,声波)ability as much as 95 percent .The whales need sonar to find food.

There new studies __26____ this month suggest the interference caused by the tourists is damaging the whales, whose population in the Puget Sound region has ___27___ from 98 to 80 in less than a decade. Scientist say all the traffic also forces the whales to move around morn, wasting energy needed for ___28____food.

“I would say that at times when there are a lot of boats and there is a lot of noise, they are easily __29____,” said Tom McMillen, captain of the whale-watching boat Stellar Sea, which takes out there groups a day.

Scientists say there is less food in the sea for the whales to eat : besides, the population in the sea is more serious. Obviously the __30_____from the boats make the life of the whales even worse.

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29. A. hungry     B. angry     C. heavy       D. terrible

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28. A. stop      B . develop    C. accept       D. receive

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27. A. reason     B. excuse    C. cause        D. explanation

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26. A. careful     B. grateful    C. successful      D.  successless

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25. A. passive     B. active    C. native        D. primitive

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24. A. increasing   B. reducing    C. making      D. controlling

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