小学英语单词：非限制性定语从句引导词的特殊情况
导语：非限定性定语从句起补充说明作用，缺少也不会影响全句的理解，它与主句往往用逗号隔开，非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，将非限定性定语从句放在句子中间，其前后都需要用逗号隔开，下面是百分网小编收集的关于非限定从句的用法以及同步练习，有兴趣的可以看看。
1.非限制性定语从句不可用that引导， 在非限制性定语从句中用who(作主语) / whom(作宾语)指人，用which(作主语 / 宾语)指物， 用whose作定语(指人 / 物)。
例如：
The famous basketball star, who tried to make a comeback, attracted a lot of attention.
这位试图打反击的著名篮球明星吸引了众人的关注。
The film, whose director is an old man, is very instructive.
这部电影很有教育意义， 它的导演是位老人。
2.关系代词在非限制性定语从句中作宾语时不可省略，若指人时，只用whom，不用who。
例如：
York, which I visited last year, is a nice old city.
我去年访问过的约克是个古老而美丽的城市。
Please give the book to Jessica, whom we met in the hall just now.
I. 单项选择。
1. They have again invited me to visit their country, ________ is very kind of them.
A. that B. which C. when D. where
2. ________ is known to all， water is an important kind of natural resource.
A. As B. Which C. Who D. When
3. The leader of the team is a 44-year-old Frenchman, ________ wife is also a team member.
A. who B. whom C. which D. whose
4. I'm to fly to Kunming, ________ it is warm in this season.
A. which B. as C. where D. when
5. He said he would come to my house to see me tomorrow afternoon, ________ I will have some other friends to play together.
A. when B. where C. which D. whom
II. 根据汉语，完成英语句子。
1. 屋子里都是孩子，其中十个是那个老人自己的孙子。
The house was full of children,________________________________________________________ .
2. 我们学校有许多实验室，其中最大的是去年建造的。
Our school has many laboratories,________________________________________________ .
3. 我去年买的'那幢房子带着一个漂亮的花园。
My house,________________________________________________ , has got a lovely garden.
4. 我们沿着村里的大街向前走去，村民们正在那里赶集。
We walked down the village street,________________________________________________ .
5. 一个中年女子杀害了自己的丈夫，这令我十分恐惧。
A middle-aged woman killed her husband,________________________________________ .
参考答案:
I. 1—5 B A D C A
II. 1. ten of whom were that old man's own grandsons
2. the largest of which was built last year
3. which I bought last year
4. where the villagers were having market day
5. which frightened me very much
请把这本书交给杰西卡，就是刚才我们在大厅里遇到的那位。
3.非限制性定语从句不可用why引导， 需用for which替代why。
例如：
None of us accepted the reason he explained, for which he was absent.
我们没有一个人接受他所解释的缺席的理由。
任何一个小的语法在英语考试中都是非常重要的，常见的语法考察的内容就是单选，完形和改错这几个题目，所以对于语法考察的内容所占的比例也是不小的，所以大家一定要重视。
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