unit4earthquakes定语从句

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1、成才之路·英语路漫漫其修远兮吾将上下而求索人教版·必修1EarthquakesUnit4SectionⅡLearningaboutLanguageUnit4课堂要点探究2课堂达标验收3课前新知预习1课时作业4课前新知预习观察下列句子，写出黑体词(关系代词)所指代的词及在定语从句中所作的成分①Ahugecrackthatwaseightkilometerslongandthirtymeterswidecutacrosshouses,roadsandcanals.(指代____________，作_________

2、___)②Thenlaterthatafternoon,anotherbigquakewhichwasalmostasstrongasthefirstoneshookTangshan.(指代____________，作____________)③Idon'tknowthegirlwhomyoutalkedtojustnow.(指代____________，作____________)④Thenumberofpeoplewhowerekilledorinjuredreachedmorethan400,000.(指

3、代____________，作____________)⑤Workersbuiltsheltersforsurvivorswhosehomeshadbeendestroyed.(指代____________，作____________)答案：①crack；主语②quake；主语③thegirl；宾语④people；主语⑤survivors；定语课堂要点探究一、基础点拨1．定义及分类。定语从句定义在主从复合句中，对某一名词或代词起修饰限制作用的从句关系代词who;whom;whose;which;that;as关

4、系副词when;where;why关系词的三个作用代替先行词在定语从句中作句子成分引导定语从句Thisisthefilmwhich/thatcreatedagreatsensation.(which/that在定语从句中作主语)这就是那部引起很大轰动的电影。Thebook(which/that)theysentmeisverygood.(which/that在定语从句中作宾语)他们寄给我的书非常好。Themanwho/thatstoleyourcarhasbeenarrested.(who/that在定语从句中

5、作主语)偷你汽车的人已经被捕获了。Theman(whom/that)Isawtoldmetocomehere.(whom/that在定语从句中作宾语)我见到的那个人让我到这里来。Pleasepassmethedictionarywhosecoverisblack.(whose在定语从句中作定语)请把黑色封面的字典递给我。名师点津(1)关系代词that可指人，可与关系词which/who/whom互换，但是不可直接放在介词的后面作宾语。(2)作宾语或表语时who与whom可互换，若紧跟在介词后面则使用whom；w

6、hom在从句中不作主语。(3)关系代词作宾语时可省略(与介词连用时除外)。(4)关系代词在从句中作主语时，谓语动词的单复数取决于先行词。(5)如果whose所修饰的是无生命的名词，常可用“the＋名词＋of＋which(指物)”或“of＋which＋the＋名词”代替“whose＋名词”。ThisistheofficeinwhichIusedtowork.这就是我过去工作过的办公室。Thisisthebuildingwhosewindows(thewindowsofwhich/ofwhichthewindows

7、)wereallpaintedgreen.这就是窗户都被漆成绿色的那幢楼。二、难点突破关系词只用that，而不用which或who的情况：1．当先行词为all,everything,nothing,anything,little,much等不定代词或先行词被这些词修饰时。Allthatcanbedonehasbeendone.一切能做的都已经做了。2．当先行词是序数词、形容词最高级或先行词被序数词或形容词最高级修饰时。ThisisthemostbeautifulparkthatIhavevisited.这是我游

8、览过的最漂亮的公园。3．当先行词被theonly，thevery,thelast修饰时。Chattingwastheonlythingthatinterestedher.聊天是她唯一感兴趣的事。4．当先行词既指人，又指物时。Shetookphotographsofthethingsandpeoplethatshewasinterestedin.她把她感兴趣的人和物都拍摄了下来。5．当主