3先行词是allmuchlittlesomethi
geverythi
ga
ythi
g
othi
g
o
ea
yfewlittle
oallmuchevery等不定代词时。①Youshouldha
di
allthatyouhave②Wehave
’tgotmuchthatweca
offeryou③Thelittlemo
eythathehadwasstole
4先行词前面有theo
lythevery等修饰时。Theo
lythi
gthatweca
doistogiveyousomemo
ey5先行词既有人又有物时。Doyouk
owthethi
gsa
dperso
sthattheyaretalki
gabout6主句已有疑问词which时。避免重复使用Whichisthebikethatyoulost7that在定语从句中作表语Maryis
olo
gerthegirlthatsheusedtobe▲不用that的情况①引导非限定性定语从句时。例如：
Hetakesexerciseeverydaywhichhasdo
ealotofgoodtohishealth②介词后不能用。
Wedepe
do
thela
dfromwhichwegetourfood
f学习必备
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▲有些情况只用which①引导非限定性定语从句修饰某物或整个句子。
Brucewe
ttowardsthefirewhichwasstillsmoki
gTomcamebacklatewhichmadehispare
tsverya
gry②关系代词作介词的宾语。Thisisthehousei
whichLuXu
o
celived2）关系代词who和whom的用法
who指人，在句中作主语和宾语，作宾语可省略。Whom指人，在句中只能作宾语，可省略，但在介词后面不能省略。Shehasabrotherwhoworkedatthatfactoryte
yearsago
Thedoctorwhowhomthatxshewe
ttotheU
itedStateswithlastmo
thisveryfamousThedoctorwithwhomshewe
ttotheU
itedStateslastmo
thisveryfamous3）关系代词whose的用法⑴whose是代词的所有格，它既可以代人也可以代物。①Isawawoma
whosebagwasstole
②Pleaseshowmethebookwhosecoverisred⑵当whose表示物与物的所有格关系时，亦可用ofwhich的形式。①Thebuildi
gwhoseroofyouca
seefromhereisa
ewrestaura
t→Thebuildi
gtheroofofwhichyouca
seefromhereisa
ewrestaura
t或→Thebuildi
gofwhichtheroofyouca
seefromhereisa
ewrestaura
t4）关系代词as的用法先行词前有such、thesame时关系代词用asI’ve
everheardsuchstoriesashetellsHeis
otsuchafoolashelooksThisisthesamedictio
aryasIlostlastweek5）关系副词的用法含义相当于