Question

【題目】語法填空

閱讀下面材料，在空白處填入適當?shù)膬?nèi)容（不多于3個單詞）或括號內(nèi)單詞的正確形式。

There are two main reasons 【1】 the temperature of the air is always 【2】 (change). One reason is 【3】 the air around you moves in from somewhere else. Air usually moves in large bodies 【4】 (call) air masses. Some air masses move in from the north. These air masses usually have cold air that causes the temperature 【5】 (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 【6】 small. This depends partly 【7】 how many clouds are in the sky. 【8】 there are many clouds during the night, they act like covers on your bed. They blanket the earth and keep the air from 【9】 (lose) much of its heat. The temperature usually does not drop much during such a night. When there are many clouds during 【10】 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】

【1】why

【2】changing

【3】That

【4】called

【5】to drop

【6】or

【7】on

【8】When

【9】losing

【10】the

【解析】

【1】why；考查why引導的定語從句。句意：空氣溫度總是在變化的原因主要有兩個。根據(jù)reasons可知關系副詞應為why。

【2】changing；主語temperature和change是主動關系，又根據(jù)is，故用現(xiàn)在進行。

【3】that；考查that引導的表語從句。句意：一個原因就是你周圍的空氣在流動。

【4】called；考查分詞作后置定語。

【5】to drop；考察固定短語，cause sb to do使…怎么樣。冷空氣使得空氣溫度下降。

【6】or；句意：白天或晚上的溫度變化可能很大也可能很小。great和small意思相反，用or表選擇、或許。

【7】on；考查固定短語,depend on取決于…。這一部分取決于天空中有多少云。

【8】When；根據(jù)后文When there are many clouds ..的提示，可知，此處用when最合適。

【9】losing；考查固定短語，keep sth from doing。阻止做某事。

【10】the；考查定冠詞，the day指白天，與前文的the night相對應。