Passage 2 ?(廣東省惠州市2010屆高三第一次調(diào)研考試) ?完形填空

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（聲納，聲波）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.

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

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

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

24. A. sympathy ? ? B enthusiasm ? ? C. excitement ? ?D. concern

25. A. stop ? ? ? ? B. decrease ? ? ? C. increase ? ? ?D. improve

26. A. released ? ? ?B abandoned ? ? ?C. predicted ? ? D. relieved

27. A. changed ? ? ?B. sunk ? ? ? ? ?C. reduced ? ? ?D. fallen

28. A. tasting ? ? ? B. hunting ? ? ? ?C. searching ? ? D. eating

29. A. astonished ? ? B .annoyed ? ? ? C. disappointed ? D. excited

30. A sound ? ? ? ? B. voice ? ? ? ? ?C. noise ? ? ? ?D. echo

答案 ?21-25 ACBDB ? ?26-30 ADBBC