人教新课标高中英语必修一定语从句课件概要.ppt

定语从句分为限制性定语从句和非限制性定语从句。 限制性定语从句是先行词在意义上不可缺少的定语, 如果去掉, 主句的意思就不完整或失去意义。它和主句的 关系十分密切，写时不用逗号分开。 在限制性定语从句中作宾语的关系代词常可省略。 Toronto is a city (that) I ve always wanted to visit. 非限制性定语从句只是对先行词作些附加说明, 如果 去掉, 主句的意思仍然清楚。它和主句关系不十分密切 ，它与主句之间常用逗号分开, 一般不用that引导。 在非限制性定语从句中关系词不可省略。 定语从句引导词的选择 取决于先行词在定语从句中的位置、成分。 1. The people whom\who\that you met in the campus are from Australia. （从句中作宾语） 2. This was the time when\at which she left for Beijing. (从句中作状语) The place which he often visits is always full of artists. (从句中作宾语) 使用要点 1. 关系代词在从句中作主语时，不能省略。 The classroom that is on the fourth floor is poorly equipped. We thought you were a person from whom we could expect good decisions. The West Lake, for which Hangzhou is famous, is a beautiful place. Air, without which man can’t live, is really important. 5. The man to whom I spoke on the phone last night is very good at writing. 6. Glasses, without which I can’t see clearly, are really important for me. 7. China is a beautiful country, of which we are proud. 8. Do you remember the day on which you joined our club? This is the teacher whose daughter is a famous doctor. =This is the teacher the daughter of whom is a famous doctor. The man is from Beijing University . I talked about him at the meeting. The man (who/whom/that) I talked about at the meeting is from Beijing University. =The man about whom I talked at the meeting is from Beijing University. 关系代词紧跟在介词后面时，不能用that，也不能省略，常用which或whom。该介词通常可以放在关系代词之前，也可放在从句之尾。 但遇固定词组时，介词一般紧跟词组主体，不作前置。 Is this the book (which/that) you are looking for ? 考点四：as与which引导的定语从句 两者均可引导非限制性定语从句，有时可以互换, 但下列情况多用as。 1.当与such或the same、so、as连用时，一般用as。 Such books as you tell me are interesting. I have the same plan as you. 2.as 引导的从句可以放在句首,as本身有“正如…, 正象…”之意，与之连用的词有 know、see、expect、 Announce、point out 等。 As we all know, the earth is round. 1. _____ Engels pointed out , labour created man himself.