九年级英语全册 Unit 9 When was it invented Section B导学案 人教新目标版.doc

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1、Unit9WhenwasitinventedSectionBPeriod3(1a—2e)语法聚焦---定语从句在复合句词中修饰名词或代词的从句叫做定词从句。被定词从句修饰的名词或代词叫做先行词。定语从句在先行词之后，由关系代词(who:whom:whose:that:which)或关系副词（when:where）引导。现阶段主要掌握关系代词的用法，特殊的看懂就行。关系代词（1）先行词指代人，且这个先行词在定语从句中作主语，关系代词用who或that,who或that不能省。Heisthemanthat/whowa

2、ntstoseeyou.他就是想见你的人。Theyarethegirlswho(that)aredancing.她们就是正在跳舞的那些女孩。（2）先行词指人，且在定语从句中作宾语时，关系代词可用whom;who;that,关系代词可省略。Heisthemanthat(whom;who)Isawyesterday.他就是我昨天见到的人。Themanwho(whom;that)sheistalkingwithisheruncle.（3）whose可用于指人或物：Pleasepassmethebookwhosecoveri

3、sgreen.请递给我那本绿皮的书。Iknowthewomanwhosedaughterworksinthehospital我认识那个她女儿在医院工作的女士。(4)先行词指物时，关系代词可用that;which,先行词若在定语从句中作宾语时，关系代词可省略。Thebookthat(which)Iamreadingisaboutchina我正在读那本书是有关中国的。Thepenthat(which)Iboughtyesterdayisbroken。我昨天买的那支钢笔坏了。（5）先行词指物时，而先行词在定语从句中作主语时

4、，关系代词用that;which,而关系代词不能省。Shedoesn”tlikethesongsthat(which)aretoolong.她不喜欢太长的歌曲。2．关系副词：Iwillneverforgetthedaywhen=(in;at，on，which)Imether.我将从来不会忘记我遇见她的那一天。Thisistheplacewhere=(in;at;which)welivedforfiveyears.这就是我们曾经住过5年的地方。3.当关系代词在从句中作主语时，从句的谓语动词与先行词保持一致。Heison

5、eoftheboyswholikeplayingbasketball.他是喜欢打蓝球的男孩之一。Iprefershoesthatarecool.我比较喜欢很酷的鞋。Ihaveafriendwholikesplayingsports.我有一个喜欢做运动的朋友。4.介词位于关系代词之前时，不能用who,而用whom.Idon’tknowthegirltowhomyoutalkedjustnow.我不认识你刚才谈话的那个女孩。5定语从句的时态不受主语的限制。Thebookthatheboughtyesterdaycosts

6、5yuan.他昨天买的那本书价值5元。Thisisthebookthatheboughtyesterday.这就是他昨天买的书。特殊情况：以下情况只能用that引导定语从句:先行词为anything;something;everything;all等词时。Finally,thethiefhandedineverythingthathehadstolen.(2)先行词由theonly;thevery;thesame;thelast,theone;等修饰时。HeistheonlypersonthatIwanttoseen

7、ow,IsthistheonethatIvisitedlastyear.(3)先行词前有形容词最高级，序数词修饰时。Thisisthebestbook(that)I’veeverread.(4)先行词既有人又有物时，Wetalkedaboutthethingsandpersonsthatwesawthen.(5)介词后不用that.Thisisthebankinwhichtherobberyhappened.用that;who;whom;which或whose填空1．Aclockisamachine_________

8、_____thllspeoplethetime.2.Thepandaisakindofanimal______________canbefoundonlyinChina.3.Thewoman____________youvisitedlastweekisafamouswriter.4.Theboy____________issittingund