Question

【题目】Tom isn't feeling very well. He seems to have a cold _______ the weather changes suddenly.

A.beforeB.soC.becauseD.because of

Answer 1

【答案】C

【解析】

句意：汤姆感觉不太舒服。因为天气突然变了，他好像感冒了。

考查连词。A. before在……之前；B. so因此，引导并列句，前句表原因，后面跟结果；C. because因为，引导原因状语从句；D. because of因为，介词短语，后面跟名词，名词性短语或代词。根据常识可知“他好像感冒了”的原因是“因为天气突然变了”，the weather changes suddenly是从句，可知用because；故选C。