Question

【题目】阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的适当形式。
There are two main (reason) why the temperature of the air is always (change). One reason is that the air around you (move) in from somewhere else. Air usually moves in large bodies (call) air masses. Some air masses move in from the north. These air masses usually have cold air that causes the temperature (drop). Air masses also move in from the south. They usually have warmer air that causes the temperature to rise.
Temperature changes during the day or night can be great small. This depends (part) on how many clouds are in the sky. there are many clouds during the night, they act like covers on your bed. They blanket the earth and keep the air from (lose) much of its heat. The temperature usually does not drop much during such a night. When there are many clouds during day, some of the sun's energy will not reach the earth. The temperature usually does not rise much on such a day.

Answer 1

【答案】reaso；changing；move；called；to dro；or；artly；Whe；losing；the
【解析】本文是一篇说明文，介绍了空气温度改变的原因。
（1） 考查名词。句意：空气温度总是在变化的原因主要有两个。根据前面的数词two可知，用名词的复数形式reasons。
（2） 考查动词时态。主语temperature和change之间是主动关系，又根据is，故用现在进行时。因此答案为changing。
（3） 考查主谓一致。句意：一个原因就是你周围的空气在流动。由the air是主语且通篇为一般现在时可知，谓语动词用moves。
（4）考查非谓语动词。call与前的large bodies是被动关系，故用过去分词，填called 。
（5）考查非谓语动词。cause表示“使”、“迫使”，通常接不定式的复合结构作宾语。冷空气使得空气温度下降。故填to drop 。
（6）考查连词。句意：白天或晚上的温度变化可能很大也可能很小。great和small意思相反，用or表选择关系。故填or 。
（7）考查副词。句意：这一部分取决于天空中有多少云。修饰动词要用副词。故填partly。
（ 8）考查连词。根据下文“When there are many clouds ...”的提示，可知此处用When最合适。
（9）考查非谓语动词。keep sth. from doing固定短语，“阻止做某事”，故填losing 。
（10） 考查定冠词。the day指白天，与前文的the night相对应，故填the。