题目内容

—What ________  exciting sports show!

—Yeah, I love this game.

A. a       B. the      C. an

答案:C

【解析】考查冠词的用法。exciting是元音音素开始的单词,所以用an。

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B

  There has been a lot of rain in California recently. Villagers and leaders there begin to be worried because they have found two birds died from a disease, West Nile Virus(病毒).

  West Nile Virus is carried by mosquitoes(蚊子).The symptoms(症状) are just like the flu. However, it can cause dangerous brain problems. When it rains a lot, it will leave a lot of water in ponds and trees. These places are good for mosquitoes. Mosquitoes lay their eggs in the water. Warm weather will help the mosquito eggs to develop and then the number is increasing. Birds eat the mosquitoes and get sick. People can get the disease if they are bitten(叮咬) by mosquitoes with West Nile Virus.

  The government is trying its best go stop the spread of West Nile Virus. People are asked to wear long sleeves(长袖)and pants, close their windows and shut the doors. At the same time, workers have been sent out to check the wet areas. If they find mosquitoes they will use some special medicine to kill them.

49. Why did the two birds die?

  A. They died from West Nile Virus.

  B. They could not get enough food.

  C. The villagers killed them.

50. From the passage we know West Nile Virus is carried by ______.

A. flu                    B. mosquitoes                  C. water

51. People will get the disease if ______.

  A. they get wet in rainy days

  B. they are bitten by any mosquito

  C. they are bitten by mosquitoes with West Nile Virus

52. People are asked to wear long sleeves and pants in order to ­­______.

  A. keep warm

  B. check the wet areas

  C. avoid being bitten by mosquitoes

March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world's major rivers have serious water loss and are polluted.

The Yellow River, the world's fifth longest river, watered some of the oldest farms on earth. But now it has a serious problem.   68  In most of the past 35 years, it didn't reach the sea.

The Nile in Egypt, running 6, 650 km, is the longest river in the world. 69 Now it is down to 2 billion m' or so. Australia's Murray River reaches the sea only every other year. One fifth of America's Rio Grande has no water, either.

____70 

Mostly it's damming (筑坝) and global warming that make rivers dry.

_____71  Now about 45, 000 of them lie across the world's rivers. They hold back around 15% of the world's fresh water from running to the sea.

Global warming is making things worse. Warmer weather takes water away. The glacier (冰川) are becoming smaller.   72  Global warming has had certain effects on water sources (源头). Droughts (干旱) happening around the world make people pay more attention to this fact.

A. Dams hold water to irrigate (灌溉) fields and make power.

B. The source of the Yellow River is drying up because of it.

C. It used to carry 32 billion m' of water a year.

D. How does it happen?

E. Factories pour waste water into rivers directly.

F. Its source on Qinghai-Tibet Plateau is drying up.

从方框中所给的选项中选出能填入空白处的最佳选项,补全短文,其中有一项为多余选项。(10分)

68. __________ 69. __________ 70. __________ 71. __________ 72. __________

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