Hereistheman(whom)you’vebeenlookingfor.
Heisaman(that)youcansafelydependon.
Thepeople(who/that)youweretalkingtowereSwedes.
TherearesomepeopleherewhoIwantyoutomeet.
ThisisthemantowhomIreferred.
但在口语中一般都把介词放到句子后面去,这时可用that,但省略时更多一些.
Haveyoumetthepersonaboutwhomhewasspeaking?
Haveyoumettheperson(that)hewasspeakingabout
ThegirltowhomIspokeismycousin.
Thegirl(who/that)Ispoketoismycousin.
限制性定语从句如果修饰“物”,用关系代词that的时候较多,也有时用which..当这个代词在从句中是用作宾语时,在绝大多数情况下都是省略的,特别是口语中(尤其是当被修饰的词是all,everything等词时):
Haveyoueverythingyouneed?
(Isthere)anythingIcandoforyou?
Allyouhavetodoistopressthebutton.
在介词后只能用which,在口语中一般都把介词放到从句后部去,这时可以用that,但省略的时候更多一些:
Thetoolwithwhichheisworkingiscalledawrench.
Thetool(that)heisworkingwithiscalledawrench.
Thisisthequestionaboutwhichwe’vehadsomuchdiscussion.
Thisisthequestion(that)we’vehadsomuchdiscussionabout.
定语从句一般是修饰名词或代词的,但间或也可以修饰整个句子a),或是句子的一部分b),引导词用which:
Theyhaveinvitedmetovisittheircountry,whichisverykindofthem.
Theactivitywaspostponed,whichwasexactlywhatwewanted
Whendeeplyabsorbedinwork,whichheoftenwas,hewouldforgetallabouteatingandsleeping.
Shewasverypatienttowardsthechildren,whichherhusbandseldomwas.