英语九年级【知识精讲】13.句法(21)定语从句——非限制性定语从句 课件

这是一份英语九年级【知识精讲】13.句法(21)定语从句——非限制性定语从句 课件，共17页。PPT课件主要包含了复合句，状语从句，定语从句，宾语从句，限定性定语从句，非限定性定语从句等内容，欢迎下载使用。

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，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。
A 引导非限定性定语从句的关系代词B 引导非限定性定语从句的关系副词主要有：when, where
wh引导Our guide, wh was a French Canadian, was an excellent ck.whm引导关系代词whm用于指人，在句中作动词宾语和介词宾语，作介词宾语时，介词可位于句末。Peter, whm yu met in Lndn, is nw back in Paris.Mr. Smith, frm whm I have learned a lt, is a famus scientist.
whse引导whse是关系代词wh的所有格形式，在从句中作定语。whse通常指人，也可指动物或无生命的事物。The by, whse father is an engineer, studies very hard.
which引导关系代词which在非限定性定语从句中所指代和修饰的可以是主句中的名词、形容词、短语、其他从句或整个主句，在从句中作主语、动词宾语、介词宾语或表语。① which指代主句中的名词，被指代的名词包括表示物、婴儿或动物的名词、表示单数意义的集体名词以及表示职业、品格等的名词。These apple trees, which I planted three years ag, have nt brne any fruit.
② which指代主句中的形容词。She was very patient twards the children, which her husband seldm was.She is always careless, which we shuld nt be.③ which指代主句中的某个从句。He said that he had never seen her befre, which was nt true.④ which指代整个主句。In the presence f s many peple he was little tense, which was understandable.
when引导关系副词when在非限定性定语从句中作时间状语，指代主句中表示时间的词语。He will put ff the picnic until May 1st, when he will be free.where引导副词where在非限定性定语从句中作地点状语，指代主句中表示地点的词语。They went t Lndn, where they lived fr six mnths.
as引导as引出非限定性定语从句时，代替整个主句，对其进行说明，as有“正如……， 就像……”之意。若as在从句中作主语，其引导的句子可以放在句首，也可以放在句中。但which引导的非限定性定语从句只能放句中。As we all knw, the earth is rund.注意：在非限定性定语从句中，关系词不能用that。
限定性定语从句与非限定性定语从句的区别
单项选择。The exam turned ut t be very easy, ________ I hadn't expected.A. that B. what C. which D. it
单项选择。The exam turned ut t be very easy, ________ I hadn't expected.A. that B. what C. which D. it答案：C解析：这里是指“这场考试非常容易是我没有预料到的”，用which引导非限定性定语从句，that常用在限定性定语从句中，故选C。
单项选择。I didn't recgnize the girls were freigners, ________ English is very gd.A. her B. the C. whse D. their
单项选择。I didn't recgnize the girls were freigners, ________ English is very gd.A. her B. the C. whse D. their答案：C解析：句意：我并没认出那些英语非常好的女孩是外国人。whse English is very gd是非限定性定语从句，所以选C。