II. Grammar and Vocabulary
Section A: Multiple choices
Directions: Beneath each of the following sentences, there are four choices marked A, B, C and D. Choose the one answer that best completes the sentence.
1. Self-driving is an area ________ China and the rest of the world are on the same starting line.
A. that B. where C. which D. when
【答案】B
【解析】
【详解】考查定语从句。句意：自动驾驶是一个中国和世界其它国家都在同一起跑线的领域。此处是限定性定语从句，先行词为area，关系词在从句中作地点状语，应用关系副词where，相当于in which。故选B。
2. There’s been much finger-pointing and debate over who ________ for the extreme weather conditions.
A. blames B. has to blame C. is to be blamed D. is to blame
【答案】D
【解析】
【详解】考查固定搭配。句意：对于谁应该为极端天气状况负责，人们有很多的指责和争论。根据句意可知，此处表示“某人应受责备”，应用固定搭配be to blame，表主动表示被动，故选D。
3. Our ancestors had no iron tools and wheeled vehicles，yet they managed to move stones that ________ more than a hundred tons to the site.
A. weighed B. were weighed C. were weighing D. weigh
【答案】A
【解析】
【详解】考查时态。句意：我们的祖先没有铁制工具和轮式车辆，但他们设法将重达100多吨的石头运到了现场。分析句子可知，句子为“that”引导的限制性定语从句，“that”代指先行词“stones”，在从句中作主语，根据句意和句中“managed”可知，句中陈述的是过去发生的事，应用一般过去时，“weigh”意为“有……重”，“stones”和“weigh”为主动关系，“weigh”的过去式为“weighed”，故空格处应填“weighed”。故选A项。
