t引导定语从句。如：Iwa
ttousethesametoolthatyouusedjust
ow2先行词为句子的定语从句用as和which引导。区别：①意义上：as含有“这点正如……一样”。②位置上：as从句可置句首，也可在另处。Hedid
’tpasstheexam，aswehadexpectedThereislotsofairi
looses
ow，whichca
keepthecoldoutAsisk
ow
，theearthisrou
d题组训练1用适当的关系代词填空1Theprizewillgotothewriterwhosestoryshowsthemostimagi
atio
2Tedcamefortheweeke
dweari
go
lysomeshortsa
daTshirt，whichisastupidthi
gtodoi
suchweather
2
f3Ihavethreeforeig
teachers，twoofwhomarefromCa
ada4Sheshowedthevisitorsarou
dthemuseum，theco
structio
ofwhichhadtake
moretha
threeyears5Thisistheo
lywaythatweca
fi
datprese
t6Thehousei
whichIusedtolivehasbecomeashoeshop
11关系副词whe
与where，why，thatwhe
指时间＝i
ato
duri
gwhichwhere指地点＝i
atfromwhichwhy指原因＝forwhichthat可以用于表示时间、地点、方式、理由的名词之后，取代whe
，where，why和“介词＋which”引导的定语从句，修饰的先行词常为theway，thetime，theday，theplace等，在口语中that常被省略。Ido
’tlikethewaythati
whichhetalksThedaythatwhe
o
whichshearrivedwasThursday题组训练2用适当的关系副词填空1Betwee
thetwopartsoftheco
certisa
i
terval，whe
theaudie
ceca
buyicecream2Whateverisleftovermaybeputi
totherefrigerator，whereitwillkeepfortwoorthreeweeks3Ca
youworkoutawaythati
whichweca
solvethisproblem4Thedaysarego
ewhe
physicalstre
gthwasallyou
eededtomakealivi
g5Idid
’tk
owthereaso
whyhecamelate12必须注意的问题：1关系词作主语时，从句中谓语的数。2注意区别定语从句与强调句。①定语从句中关系词作从句成分，复合句。②强调句中it无意义，thatwho不是引导词。③去掉itiswas和thatwho后，如果句子意思讲得通则是强调句，讲不通则不是。Itisthemuseumthatwhichwevisitedlastyear定语从句Itwasi
thehotelthatwestayedlast
ight强调句3定语从句与同位语从句的区别。①定语从句的引导词被称为关系词，that充当主语、宾语、表语，有时可省略。②同位语从句的引导词被叫作连接词，that不充当任何成分，不可省。
3
fWordcamethattheirarmywasdefeated同位语从句Weexpressedtothemourwishthatwasthesameastheirs定语从句4关系词在从句中省略的情况。①关系词作宾语，前无介词时。②关系词作表语。5关系词前有介词或复杂介词，关系词只能是which和whom。6几个特殊的定语从句句型：①Heistheo
lyo
eofthestude
tswhohasgr