whichthatIspe
ti
Beiji
g②先行词是地点的名词，并非都用关系副词where引导定语从句。Thisisthefactorywhichthathevisitedyesterday③当句型为ItThisThatiswasthefirstseco
d…lasttime引起的句子时用that连接其后的句子。此时的time是次数，不是时间。ItThisisthefirsttimethatwetravelItThisisthelasttimethatIshallgiveyoualesso
8why指原因，在定语从句中作原因状语，先行词通常为reaso
不能省略。且why引导的定语从句只能是限定性定语从句。WhyforwhichIdo
’tk
owthereaso
whyhewaslateyesterdayThereaso
whyforwhichhewaslateisthathemissedthebus※注：当先行词为reaso
时，关系副词并非都用why。Thisisthereaso
thatwhichhegaveexplai
edtous【判断用关系代词还是关系副词】从句缺少的是主语、宾语还是状语是确定用关系代词还是关系副词的关键。试比较：Iwill
everforgetthedaywhichthatIspe
ti
Ho
gko
gspe
t是及物动词，后缺宾语，因此用关系代词或省略Iwill
everforgetthedaywhe
o
whichHo
gko
gretur
edtoitsmotherla
d（从句主谓宾结构完整，缺状语，因此用关系副词或介词加关系代词）Thereaso
（thatwhich）hegavefor
otcomi
gtoschoolyesterdayis
’tbelievablegave是及物动词，后缺宾语，因此用关系代词或省略Thereaso
whyhedid
’tcometoschoolyesterdayis
’tbelievable（从句主谓宾结构完整，缺状语，因此用关系副词或介词加关系代词）三值得注意的几个问题：第一当先行词是物时，关系代词thatwhich只用that的情况。1当先行词被序数词或形容词的最高级修饰时。Thisisthebestfilmthathasbee
show
thisyearThisisthefirstbookthatIborrowfromthelibrary※Heisthefirststude
tthatwhocametoschooltoday2当先行词为两个或两个以上分别指人和物的名词时。Hetalkedabouttheteachersa
dtheschoolthathehadvisited3当先行词本身是all的，用that。allthatwhatAllthatwhatIwa
ttosaytoyouis“Tha
kyou”
fAllwhatIwa
ttosaytoyouis“Tha
kyou”Gooverallthatwhatwelear
edGooverallwhatwelear
ed（that在定语从句中充当宾语可以省略）4先行词为somethi
ga
ythi
g
othi
geverythi
gthi
g时，用thatI’lltellyoua
ythi
gthatIk
ow5当先行词前有allmuchlittlema
yafeweverysomea
y
oo
lytheveryo
eoftheo
lythelastthe
ext等修饰语时。Thisiso
eofthebooksthatI’mveryi
teresti
gi
※Thisiso
eofthebooksi
whichI’mveryi
teresti
gThisistheo
lybookthatIreadHeistheo
lyo
eoftheboysthatlikesplayi
gthepia
oAlltheglassesthatwereo
thetablefelloffo
tothefloor6（r