1. They will fly to South Africa, ______ they plan to stay for half a month.
A. when B. where C. there D. which
【答案】B
【解析】
【分析】
【详解】考查定语从句。句意:他们将飞往南非,计划在那里停留半个月。分析句子可知,空后面的句子为非限定性定语从句,修饰先行词South Africa,关系词在从句中作地点状语。故选B。
2. ________ is often the case with children, Tom was better by the time the doctor arrived.
A. It B. That C. What D. As
【答案】D
【解析】
【分析】
【详解】考查定语从句。句意:汤姆在医生赶到前已经完全没事了,这种事经常发生在孩子身上。as 引导非限制定语从句,先行词是整个句子,as在从句中作主语,意为“正如,像……一样”。故选D。
【点睛】as可以引导非限制性定语从句,可以放在句首或句末,意为“正如”,指代主句的内容,在从句中可做主语,宾语和表语。有些固定搭配可记忆,如:as is often the case;as is know to all等。
3. The reason ________ he explained was________ he was ill and unable to go to school.
A. which; that B. why; because C. which; because D. why; that
【答案】A
【解析】
【详解】考查定语从句和表语从句。句意:他解释的原因是他生病了,不能去上学。第一空为限定性定语从句,修饰先行词reason,且先行词在从句中作宾语,指物,应用关系代词which/that;第二空为表语从句,从句中不缺少成分,句意完整,应用只起连接作用的that。故选A。