The northern parts of the United States get very cold in the win

The northern parts of the United States get very cold in the winter.It snows a great deal and the?temperature often goes_____21_____zero degree in January,_____22_____and March.But the northeastern and?northcentral regions of____23______have been financial and industrial centers,and they are heavily polluted. In recent years,people in these regions have begun to take vacations_____24_____these cold winter?months.They go to southern parts of the country____25______it is warmer.Many go to Florida where the?weather is_____26_____.Others go to the southwestern states of Arizona,New Mexico and Texas where they._____27_____dry desert climates. It has become_____28_____nowadays.for old people to move south to these places_____29_____they?retire.Typically these people sell their houses in their home communities and move south to begin a?new life_____30_____senior citizens. Their children likely have homes_____31_____and many of them are moving south_____32_____communities?where they were_____33_____.The southern and southwestern parts of the country are now growing_____34_____any?other part.Business and industry_____35_____many offices and factories in the south.California is already?the most popular state in the country. 第（25）题答案
A、where
B、when
C、which
D、that
【正确答案】：A
【题目解析】：在第25题中，句子“They go to southern parts of the country____25______it is warmer.”中的空白处需要填入一个能够引导地点状语从句的连词。在这个句子中，我们需要描述的是“他们”去南方的原因，即因为那里更暖和。 A选项“where”是一个关系副词，它可以引导地点状语从句，表示在某个特定的地方发生某种情况。在这个句子中，“where”引导一个地点状语从句，说明“他们”去的是“那里更暖和”的地方，符合语境。 B选项“when”是一个时间连词，用来引导时间状语从句，表示在某个特定的时间发生某种情况。然而，在这个句子中，我们谈论的是地点而不是时间，因此“when”不符合语境。 C选项“which”和D选项“that”都是关系代词，它们通常用于引导名词性从句或定语从句。在这个句子中，我们需要的是一个能够引导地点状语从句的连词，而不是关系代词，因此这两个选项都不适用。 综上所述，正确的答案是A选项“where”，它正确地引导了一个地点状语从句，表达了“他们”去南方的原因。