(situation)．

　　4．I don’t like pubs.They’re noisy，

　　(smell)，and what’s more，expensive.

　　5．It’s said that foods can

　　(damage) if they are kept too cold.

　　6．A shortage of funds is preventing the UN

　　monitoring relief.

　　7．The manager asked the girls to call out their names

　　turn.

　　8．It was my good fortune to be linked

　　Madame Curie through twenty years of friendship.

　　9．Too much work and too little rest often lead

　　illness.

　　10．Even rich men may be faced

　　financial problems.

　　Ⅰ.阅读理解

　　A

　　Windbreaks are barriers(屏障) formed by trees and other plants.Farmers plant these barriers around their fields，which help prevent the loss of soil and stop the wind from blowing soil away.They also keep the wind from damaging or destroying crops.Besides，extra trees and plants can be cut down and used or sold for wood.

　　Windbreaks can be highly valuable for protecting grain crops.For example，in parts of West Africa grain harvests were twenty percent higher in fields protected by windbreaks compared to fields without them.

　　But here is something interesting about windbreaks.They seem to work best when they allow some wind to pass through the barrier of trees or plants around a field.If not，then the movement of air close to the ground will lift the soil.Then the soil will be blown away.For this reason，a windbreak works best if it contains only 60 to 80 percent of the trees and plants that would be needed to make a solid line.An easy rule to remember is that windbreaks can protect areas up to 10 times the height of the tallest trees in the windbreak.

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