1、Discover useful structureUnit1-区别限制性定语从句与非限制性定语从句一、定语从句的种类Underline the relative clauses 1.They tested hundreds of Chinese medical treatments that showed promise in the fight against the disease.2.Tu Youyou was awarded the Nobel Prize,which is considered one of the highest international honours a pe
2、rson can receive.3.Tu Youyou went to Hainan,where malaria was more common,to study malaria patients.4.Later,the medicine was tested on malaria patients,most of whom recovered.Name two types of clauses and state their functions 1.They tested hundreds of Chinese medical treatments that showed promise
3、in the fight against the disease.2.Tu Youyou was awarded the Nobel Prize,which is considered one of the highest international honours a person can receive.3.Tu Youyou went to Hainan,where malaria was more common,to study malaria patients.4.Later,the medicine was tested on malaria patients,most of wh
4、om recovered.1.定语从句有_和_两种。2._是先行词不可缺少的部分，去掉它主句意思往往不明确；_是先行词的附加说明，去掉了也不会影响主句的意思。归纳总结限制性定语从句限制性定语从句非限制性定语从句非限制性定语从句二、限制性定语从句与非限制性定语从句的区别1.1.形式不同形式不同【探究例句探究例句】The woman who lives next door is a doctor.My brother Ben,who lives in HongKong,is a doctor.【归纳总结归纳总结】限制性定语从句主句和从句之间没有_，_必须用逗号与主句隔开。逗号非限制性定语从句2.2
5、.先行词不同先行词不同【探究例句探究例句】This is the novel that I have ever read.The novel,which I read last night,is very interesting.She writes the novel,which I dont know.【归纳总结归纳总结】限制性定语从句的先行词只能是一个名词或代词，而非限制性定语从句的先行词可以是一个词，也可以是_。整个主句3.3.关系词的使用情况不同关系词的使用情况不同(1)that,why不可用于引导非限制性定语从句【观察例句】【观察例句】Most people didnt vote
6、for him,which disappointed him.I have told them the reason,for which I changed my mind.【归纳归纳总结总结】指物时要用_代替that,_代替why。for whichwhich(2)关系代词替代情况不同【观察例句】【观察例句】This is the man(whom/who/that)we are talking about.The young man had a new girlfriend,whom he wanted to impress.She has a younger brother,who is
7、 an English teacher.【归纳总结】【归纳总结】关系代词whom在限制性定语从句中作宾语时可用who代替，但在非限制性定语从句中作宾语时不可用_代替。在限制性定语从句中，先行词指人时可以用that引导，但在非限制性定语从句中先行词指人时，关系代词只能用_或_。whowhowhom(3)关系代词省略情况不同【观察例句】【观察例句】This is a good film(which/that)I saw a few days ago.The summer holiday,which were looking forward to,is drawing near.【归纳总结】【归纳总
8、结】关系代词在限制性定语从句中作宾语时可省略，而非限制性定语从句的所有关系代词均（可/不可）省略。练习：用合适的关系词填空练习：用合适的关系词填空Until now,we have raised 50，000 pounds for the poor children,_is quite unexpected.The exact year_Angela and her family spent together in China was 2018.Can you tell me the reason_he was absent yesterday?Einstein,_was Jewish,found the doors of academic institutions closed to him.Later,the medicine was tested on malaria patients,most of_recovered.
