Question

The reason ____ the people in the mainland go to Hong Kong to buy formula is that people are not convinced ____the safety of formula produced in the mainland.

A．that; at

B．why; at

C．why; of

D．what; of

Answer 1

C

試題分析：句意：大陸的人去香港買嬰兒食品的原因是人們不確信在大陸生產的嬰兒食品的安全性。第一空是why引導的定語從句，先行詞reason，關系詞在從句中作狀語；第二空是是固定短語be convinced of確信。根據句意故選C。
點評：本題難度適中。定語從句的考查關鍵在于定語從句的成分分析，如果缺少主語，賓語，表語，定語就使用關系代詞，否則，就使用關系副詞。這里把定語從句與固定短語放在一起考查增加了試題的難度。
即學即練：The Chinese government has made the Mid-Autumn Festival a legal holiday, ______ people will have a day off.
A. when           B. which          C. where        D. what
解析：A。句意：考查非限制性定語從句。the Mid?Autumn Festival為先行詞，指時間在從句中作時間狀語，因此引導詞用when。