非限制性定语从句基础用法复习知识点精析 1.定义：对主句中的先行词进行附加描写或补充的定语从句称为非限制性定语从句，它前边通常用逗号与先行词分开。 2.限制性定语从句与非限制性定语从句的区别 限制性定语从句 非限制性定语从句 意义 描述主句所涉及的人或物的具体情况，是主句不可或缺的一部分，如果省去，主句意义不完整 对主句所描述的人或物提供一些附加情况，起补充说明作用，即使省去，主句意义仍然完整 形式 一般紧跟先行词，主句和从句不用逗号分开 主句和从句间有逗号分开 功能 修饰先行词 既可修饰先行词，也可修饰整个主句或主句的部分内容 翻译 常译为先行词的定语 常译为另一个分句 关系代词 who, whom, whose, which, that who, whom, whose, which 关系副词 when, where, why when, where My brother studies in the school which is the most beautiful in our city. 我的弟弟在我们城市最美丽的学校读书。(which引导限制性定语从句) Mo Yan won the Nobel Prize in Literature, which made him well­known. 新概念3 新概念英语软件 新概念英语1课文 莫言获得了诺贝尔文学奖，这使他名扬天下。(which引导非限制性定语从句) I’ll never forget the day when my hometown was liberated. 我将永远不会忘记我的家乡被解放的那一天。(when引导限制性定语从句) We will put off the meeting until next week, when we won’t be so busy. 我们将把会议推迟到下周举行，到那时我们就不会这么忙了。(when引导非限制性定语从句) We don’t know the number of people who lost their homes in the earthquake. 我们不知道这个城市在地震中失去家园的人们的数量。(who引导限制性定语从句) This class, who have got tickets, will go to the theatre this morning. 这个班级的同学都拿到了票，今天上午去看戏。(who引导非限制性定语从句) 1. Among all the contestants, only Mary _____ had supposed could win the first prize. A. who B. / C. I D. that 2. Keep the drug _____ is out of children’s reach. A. in a place where B. where C. in a place which D. in which 3. The price of the food and vegetables _____ we had expected. A. were a little lower than B. was cheaper than C. was a little higher, as D. were higher, which 4. ---Where did you see him?  --- It was in the bookstore _____ your mother worked. A. that B. which C. where D. in which 5. When we talk about the cities in United States, the first _____ comes into our mind is New York. A. one B. city C. that D. which 6. He arrived in Shanghai in 2003, _____, some time later, he became a teacher.  A. when    B. where  C. that  D. which 7. At this critical moment, we badly need a mayor to handle this difficult situation, _____. A. for whom every citizen has confidence B. in whom every citizen has confidence C. who every citizen has confidence D. whom everyone has confidence  8. The challenge is to create a system, _____ the farmers can teach the world about plant medicine. A. where B. which C. when D. for which 9. To save money for my education, my mother often takes on more work _____ good for her. A. than what is B. than that is C. than it is D. than is 10. Jogging on the road was one of the reasons _____ 21 people, including 20 students and 1 teacher, died and  another 16 were injured in the accident in Shanxi Province. A. because B. which C. for which D. how