Question

The reason      he was late for school was      he had to send his mother to a hospital.

A．which; that

B．why; that

C．for which; because

D．what; why

Answer 1

B

試題分析：考查定語從句和表語從句。本題第一空是由why引導(dǎo)的是定語從句，修飾名詞the reason，后面定語從句的句子結(jié)構(gòu)很完整，所以使用關(guān)系副詞。第二空是that所引導(dǎo)的表語從句，that在句中不充當(dāng)任何成分，只起引導(dǎo)和連接的作用。句意：他上學(xué)遲到的原因是他要送媽媽去醫(yī)院。故B正確。
點評：連接表語從句的連接詞有：that, what, who, when, where, which, why, whether, how, whoever，whomever，whichever ，whatever等。還有如because, as if, as though等。解答這類題目，關(guān)鍵在于分析清楚句子結(jié)構(gòu)。通過判斷引導(dǎo)詞在從句中所作的成分及意義，來選擇正確的引導(dǎo)詞。定語從句的考查主要就是考查關(guān)系詞的辨析，關(guān)系代詞that, which, whose, whom, as， who在句中做主語，賓語，表語或者定語；where, why, when在句中做狀語。要分析句子成分，看缺少什么成分，就選用相應(yīng)的關(guān)系詞。