1、Unit 5Travelling abroad Section Grammar复习非限制性定语从句思维导图语法精讲一、概述定语从句分为限制性定语从句和非限制性定语从句两种。非限制性定语从句是指对先行词进行附加说明的从句，去掉了它也不会影响主句的意思。它与主句之间通常用逗号分开。Our guide, who was a French Canadian, was an excellent cook.我们的向导，一个法裔加拿大人，擅长于烹调。Li Ming was always late for school, which made his teacher annoyed.李明上学经常迟到，这一点令
2、他的老师很生气。二、限制性定语从句与非限制性定语从句的区别项目限制性定语从句非限制性定语从句作用对先行词起限定修饰作用，不可省略对先行词或主句起补充说明作用，可以省略结构无逗号与主句隔开有逗号与主句隔开引导词可以用that, why等不可以用that, why译法译成定语译成解释语试比较：The boy whose father is an engineer studies very hard.那位父亲是位工程师的小男孩学习很努力。(限制性定语从句)The boy, whose father is an engineer, studies very hard.那位小男孩学习很努力，他的父亲是位
3、工程师。(非限制性定语从句)三、注意事项1that和why不能引导非限制性定语从句。She received an invitation from her boss, which came as a surprise.(正确表达)她收到了老板的邀请，这是她意想不到的。She received an invitation from her boss, that came as a surprise.(错误表达)他失去工作的主要原因是他喝酒。The main reason why he lost his job was that he drank.(正确表达)The main reason, wh
4、y he lost his job, was that he drank.(错误表达)2as引导的非限制性定语从句(1)as引导的非限制性定语从句常用在一些固定搭配中。如：as we all know众所周知；as is often the case情况经常如此；as is said above如上所述；as has been said before正如之前所说，等等。Yi Jianlian and Yao Ming, as we all know, are both excellent basketball players.众所周知，易建联和姚明都是优秀的篮球运动员。As is said a
5、bove, he has conquered the difficulty.正如上面所说，他征服了困难。(2)as引导的非限制性定语从句还常与the same, such等构成关联词组：the same.as; such.as; as作主语、宾语或表语。This is the same ballpen as I lost yesterday.这支是和我昨天丢的一样的圆珠笔。(3)有时非限制性定语从句的先行词是它前面的主句。In the presence of so many people he was a little tense, which was understandable.在那么多人
6、面前他有点紧张，这是可以理解的。.用适当关系词填空1Youd better make full preparations before class and have a brief understanding of the history of Tang Dynasty, which makes it easy for you to go through the class.2The exhibition, the theme of which is “beauty of China”， will take place in the school hall from 2 to 5 on the
7、 afternoon of June 21.3We will put off the picnic in the park until next week, when the weather may be better.4Many young people, most of whom were welleducated, headed for remote regions to chase their dreams.5In the picture, we can see a boy in worn clothes, who was reading a book with full attent
8、ion.6The books on the desk, whose covers are shiny, are prizes for us.7The number of smokers, as is reported, has dropped by 17 percent in just one year.8Opposite is St. Pauls Church, where/in_which you can hear some lovely music.9As I explained on the phone, your request will be considered at the n
9、ext meeting.10I had told them the reason, for which I didnt attend the meeting.补全句子(注意使用定语从句)1In the English corner, I meet many friends, who_share_the_same_interest_with_me (他们和我有着同样的兴趣)2The weather turned out to be very good, which_was_much_better_than_we_had_expected (它比我们预料的好得多)3My physics teach
10、er is my role model, whose_influence_on_me (他对我的影响) had a lot to do with my decision.4As_the_saying_goes (俗话说), interest is the best teacher.5All the neighbours admire this family, where_the_parents_treat_their_children_like_friends (在这个家里，父母就像朋友一样对待他们的孩子)6The engineer, whom I met in the office (我在办公室遇到的那个工程师), worked very hard.7Besides, there will be a lot of useful and interesting activities, from_which (从活动中) you can have a clearer picture of Chinese culture.8They thanked Tom, without_whose_support (没有他的支持) they would not have succeeded.