why是疑问副词,意思是“为什么”,用来询问原因、理由,一般由“Why + 一般疑问句”构成特殊疑问句。例如:
Why is he here? 为什么他在这?
Why does he like this subject? 为什么他喜欢这个科目?
用作疑问副词时,后面接的一般疑问句是疑问语序。例如:
My brother is late for school, because he gets up late. (用why对该句进行提问)
Why is your brother late for school? (?菁)
Why your brother is late for school? (?菖)
以why引导的特殊疑问句,一般由because引导的状语从句来作答。because是连词,作“因为”解,其后要接一个句子来陈述原因、理由。例如:
Why don't you like English? 为什么你不喜欢英语?
Because it's difficult. 因为英语很难。
Why do they want to go to China? 为什么他们喜欢来中国?
Because they want to learn Chinese. 因为他们想学习汉语。
另外,why 相当于 what...for?,回答时because表示直接原因, because of为介词短语,后接名词、代词等。例如:
I do it because I love it. 我做这件事情,因为我喜欢。
I didn't go there because of rain. 因为下雨,所以我没有去。
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