Question

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　　Parts of Africa are covered by a dark cloud. But this is no rain cloud. It is a living cloud made of billions of locusts that are travelling across the continent eating everything in their path.

　　And now in the battle to stop this disaster, a radio station in Senegal, West Africa, is offering listeners 50 kilograms of rice if they can catch and kill 50 kilograms of locusts, “We think this idea will get more people involved(參與) in the war on the locusts,” said Abdoulaye Ba, from Sud-Fm, a radio station in one of Senegal's worst affected regions.

　　This is West Africa's biggest locust disaster in 15 years, and it is moving east, causing huge damage to crops. As they move they breed and increase their number and will soon threaten Sudan in the northeast of Africa. Some say it could reach Asia.

　　Experts say the harmful effect on crops in areas already suffering from food shortage and war could cause many people to go hungry. Governments in the region are not well equipped to fight the pest.

　　Although leaders of 12 countries have agreed on a plan, it may be inadequate. “We are now treating 6,000 hectares per day with pesticide(殺蟲劑), but we need to treat 20,000 hectares per day in order to have any hope of controlling his disaster,” said Mohamed Abdallahi Ould Babah, director of locust control in Mauritania.

　　Requests are being made for international aid, which is the only way to limit the crisis(危機), the UN's Food and Agriculture Organization warned.

1．By using “dark cloud” to describe locusts in the first paragraph, the writer ________.

[　　]

A．showed vividly the size and speed of the mass of locusts

B．suggested the great damage that locusts can cause

C．warned that locusts would sweep the continent like rain clouds

D．both A and B

2．The story is about ________.

[　　]

A．West Africa's united effort in fighting a disaster

B．the difficulty in controlling locusts

C．how locusts caused great damage to West Africa

D．a struggle to fight against a disaster posed by locusts in West Africa

3．The locust disaster ________.

[　　]

A．would be even more serious in Asia

B．is out of control

C．affected only the warring regions

D．can not be stopped unless twice as much pesticide is provided for the affected areas

4．The word “inadequate” in the last but one paragraph is closest in meaning to ________.

[　　]

A．effective

B．impractical

C．unrealizable

D．insufficient(不充足的)

5．Which of the following is wrong?

[　　]

A．Sud-Fm offered a reward for fighting locusts so that more people would join in the effort.

B．Senegal is to the southwest of Sudan.

C．The locusts can cause such damage mainly because it has no natural enemy in West Africa.

D．12 countries affected by the plague have united but still lack resources to contain it.

Answer 1

答案：D;D;B;D;C
解析：

1．D　　根據文章內容可知，第一段使用“dark cloud”來描述蝗蟲，主要是說明蝗蟲之多以及將要帶來的危害。 　　2．D　　全文就是圍繞西部非洲的人們和蝗蟲做斗爭而講述的，所以答案應選D。 　　3．B　　根據文章最后兩段所講的內容可知，雖然斗爭取得了一定的進展，但還是無法控制。 　　4．D　　根據本段后面部分所講的內容可知，雖然12個國家已經制訂了一個計劃，但還是不夠，還要申請國際援助，由此可知答案應選D。 　　5．C　　根據文章內容可知，A、B、D項在文中都提到了，只有C項沒有涉及，所以答案應選C。