题目内容

仔细阅读下面的短文,文中共有10个空格。请根据每小题括号内的具体要求完成语法填空,例如正确词性,词形变化等。

There are two main reasons   1   (关系代词或关系副词) the temperature of the air is always   2   (change的正确形式).One reason is that the air around you moves in from somewhere else.Air usually moves in large bodies   3   (call 的正确形式) air masses.Some air masses move in from the north.These air masses usually have cold air that cause the temperature   4   (drop的正确形式).Air masses also move in from the south.They usually have   5   (warm的正确形式) air that causes the temperature to rise.

Temperature changes during the day or night can be great   6   (连词)small.This depends partly   7   (介词) how many clouds are in the sky.  8   (连词)there are many clouds during the night, they act like tile covers on your bed.They blanket the earth and keep the air from losing much of   9   (代词)heat.The temperature usually does not drop much during such a night.When there are many clouds during   10   (冠词)day, some of the sun’s energy will not reach the earth.The temperature usually does not rise much on such a day.

答案:
解析:

why, changing, called, to drop, warmer, or, on, When, its, the


练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网