的宾语，但不能放在介词后（1）主语分解：Thema
isateacherThema
isspeaki
gi
theclassroom合并：Thema
whoisspeaki
gi
theclassroomisateacher（2）宾语分解：Thema
ismyfrie
dYoumetthema
i
thestreetjust
ow合并：Thema
who（whom）youmeti
thestreetjust
ow（可后置）ismyfrie
d（3）概括Heisthema
whowa
tstoseeyouHeisthema
whoIsawi
theparkyesterday2）Whom：在从句中作宾语，可放在介词后（1）宾语分解：Thewoma
isadoctorTheywa
ttovisitthewoma
合并：Thewoma
whomtheywa
tedtovisitisadoctor（2）概括Heisthema
（whom）Isawi
theparkyesterday小结：Whowhom都可在定语从句中充当宾语成分，但whom作为宾语，较为正式；而who作为宾语使用时，常用语非正式语中；二者若同时出现而且充当相同成分，whom优先。3）Whose：用来指人或物，（只能用作定语，若指物，相当于名词所有格，可以同ofwhich
互换）。（1）定语分解：TheteacherpraisedLileiHisE
glishisthebesti
ourclass合并：TheteacherpraisedLileiwhoseE
glishisthebesti
ourclass分解：Thehouseismi
eThewi
dowofthehouseisbroke
合并：
1）Thehousewhosewi
dowisbroke
ismi
eWhosethehouse’s（whose相当于先行词的所有格）
2）Thehousethewi
dowofwhichisbroke
ismi
e
f3）Thehouseofwhichthewi
dowisbroke
ismi
e4which：指物，在从句中作主语或宾语，可放介词后（1）主语分解：BasketballisagameBasketballislikedbymostboys合并：Basketballisagamewhichislikedbymostboys（2）宾语分解：WevisitedthefarmyesterdayTheFarmislocatedi
thesuburbofBeiji
g合并：TheFarmwhichwevisitedyesterdayislocatedi
thesuburbofBeiji
g（3）概括They
eededapla
twhichdid
t
eedasmuchwaterasrice★5）that：多用来指物，有时也可以用来指人；在从句中作主语或宾语；指物的时候多用that，也可用which。（1）常规用法：It’saquestio
thatwhich
eedscarefulco
sideratio
（指物，作主语。）Whoisthema
thatisreadi
gamagazi
eu
derthetree（指人，作主语。）ThegirlthatwesawyesterdayisTom’ssister（指物，作宾语）（2）特殊用法：以下情况只能用that1先行词为alleverythi
ga
ythi
g
othi
glittle等不定代词时。egAllthatshelackedwastrai
i
g2先行词被形容词最高级修饰时egThisisthebestfilmthatIhaveeversee
3先行词被序数词和thelast修饰时egThisisthefirstplaythatIhavesee
si
ceIcamehere4先行词中既有人又有物，人物并存时egTheytalkedabouttheteachersa
dtheschoolsthattheyhadvisited5先行词被everysome
oalla
ylittlemuch等修饰时egIhavereadallthebooksthatyr