英语必背的知识点总结归纳

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英语必背的知识点总结归纳



英语必背的知识点总结归纳



关系代词引导的定语从句 1.who指人，在从句中做主语

(1)TheboyswhoareplayingfootballarefromClassOne. (2)YesterdayIhelpedanoldmanwholosthisway. 2.whom指人，在定语从句中充当宾语，常可省略。 (1)Mr.Liuistheperson(whom)youtalkedaboutonthebus. (2)Mr.LingisjusttheboywhomIwanttosee.

注意：关系代词whom在口语和非正式语体中常用who代替，可省略。

(3)Themanwho/whomyoumetjustnowismyfriend.

3.which指物，在定语从句中做主语或者宾语，做宾语时可省略 (1)Footballisagamewhichislikedbymostboys. (2)Thisisthepen(which)heboughtyesterday.

4.that指人时，相当于who或者whom;指物时，相当于which。在宾语从句中做主语或者宾语，做宾语时可省略。

(5)Thenumberofthepeoplethat/whocometovisitthecityeachyearrisesonemillion.

(6)Whereisthemanthat/whomIsawthismorning? 5.whose通常指人，也可指物，在定语从句中做定语


(1)Hehasafriendwhosefatherisadoctor. (2)Ioncelivedinahousewhoseroofhasfallenin. whose指物时，常用以下结构来代替

(3)Theclassroomwhosedoorisbrokenwillsoonberepaired. (4)Theclassroomthedoorofwhichisbrokenwillsoonberepaired. (5)Doyoulikethebookwhosecoverisyellow? (6)Doyoulikethebookthecolorofwhichisyellow? 关系副词引导的定语从句

1.when指时间，在定语从句中做时间状语

(1)IstillrememberthedaywhenIfirstcametotheschool. (2)Thetimewhenwegottogetherfinallycame. 2.where指地点，在定语从句中做地点状语 (1)ShanghaiisthecitywhereIwasborn.

(2)ThehousewhereIlivedtenyearsagohasbeenpulleddown. 3.why指原因，在定语从句中做原因状语

(1)Pleasetellmethereasonwhyyoumissedtheplane. (2)Idon”tknowthereasonwhyhelooksunhappytoday.

注意：关系副词引导的从句可以由“介词+关系代词”引导的从句替换

(1)Thereasonwhy/forwhichherefusedtheinvitationisnotclear, (2)Fromtheyearwhen/inwhichhewasgoingtoschoolhebegantoknowwhathewantedwhenhegrewup.

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