Practise: 1.Thisisthehousewhichisforsale. 2.Thebookwhichislyingonthefloorismine.
which/that作宾语：（可省略） Thisisthecard. I’vejustreceivedthecard. Thisisthecardwhich/thatI’vejust () （作宾语） received. Practise: 1.Thisisthemistakewhich/thatIalwaysmake. 2.Istillkeeptheletterswhichshewrotetome. 3.Ilostthepenwhichmyfatherboughtme.
who,whom,whose,that用法区别.
who作定语从句的主语或宾语.
Themanwhoisspeakingatthemeeti ngisaworker.
Themanisaworker. 分解 Themanisspeakingatthemeeting. 作主语
Whom作定语从句的宾语 Thewomanwhomtheywantedtovi sitisateacher.
• 什么是定语从句呢？
用来说明主句中某一名词或代词（有时 也可说明整个主句或主句中一部分）而 起定语作用的句子叫作定语从句。
Maryisagirlwhohaslonghair.
被修饰的名词或代词叫先行词,连接定语从 句和先行词的连词叫关系代词或关系副词. 关系词有两个作用：一、引导定语从句。二、 代替先行词在其引导的定语从句中充当一定 的句子成分。定语从句一般紧跟在先行词的 后面。关系代词在定语从句中作主语或宾语.
分解 Thewomanisateacher. Theywantedtovisitthewoman.
作宾语
whose作定语从句的定语. Iknowthegirlwhosemotherisateach er.
Iknowthegirl. 分解 Thegirl’smotherisateacher.
作定语
Thethief(whom)thepolicecaughtlastnig hthasbeensenttoprison.
小结： • that－既可指人，也可指物，作主语， 不能省略；作宾语，可以省略。
关系代词的实质
Jointhefollowingsentences: Aplaneisamachine.Themachinecanfly. Aplaneiscanfly. amachine that/which
注意避免重复
定语从句的用法:
当先行词是物时,用which或that引导. Thesearethetreeswhich/thatwereplante dlastyear. 当先行词是人时,用who,whom, whose,that引导.famouswriter.
Hedescribedthemanjustnow. Theman(who/whom/that)hedescribedjustn owisafamouswriter.(作宾语） Thethiefhasbeensenttoprison. Thepolicecaughtthethieflastnight.
who/that作主语.(不能省) Thisisthefilmstar. ThefilmstarisverypopularinChina.
ThisisthefilmstarwhoisverypopularinChina.( /that 作主语) 1.TheboywhobrokethewindowiscalledRoy. 2.Doyouknowthemanwhospokeatthemeetingy esterday? 3.Thegirlwhoiswateringtheflowersismycousin.
结构：先行词+关系词+句子
Maryisagirlwhohaslonghair.
先行词 关系代词
关系词
定语从句 关系副词 Where,when
which,who,whom,w hose,that
关系代词的实质
Jointhefollowingsentences: Aplaneisamachine.Themachinecanfly. Aplaneiscanfly. amachine themachine
which/that作主语.(不能省)
Thisisadream. Thedreamwillnevercometrue. Thisisadreamwhich/thatwillnevercometrue. （作主语） Thedoghasbeenfound. Thedogwaslost. Thedogwhichwaslosthasbeenfound.
定语从句
Matchthetwosentences
1.I’mreadingabook.ThebookisaboutBillGates.
I’mreadingabookthat/whichisaboutBillGates. _______________________________________
2.Heisateacher.TheteacherteachesusChinese.
Heisateacherwho/thatteachesusChinese. _______________________________________ 3.Idon’tliketheman.Heissmoking. Idon’tlikethemanwhoissmoking. ____________________________________ 4.Whereisthepicture?Youboughtitlastweek. Whereisthepicturethatyouboughtlastweek? _______________________________________