who-that和which定语从句

定语从句中只用WHO,不用that的情况1.先行词是one,ones或anyone时;先行词为those或被those修饰，指人时Onewhodoesnotworkhardwillneversucceed.Anyonewhobreaksthelawshouldbepunished.SheistheonlyoneofthestudentswhohasbeentotheUSA.Thosewholearnnotonlyfrombooksbutalsothroughpracticewillsucceed.2.在以therebe…的句子中，先行词为人时Thereisacomradeoutsidewhowantstoseeyou.3.当定语从句中又有定语从句,且先行项都为人时Thestudentthatwonthefirstprizeisthemonitorwhoworkshard.4.当指人的先行项被一些指物的名词修饰时There'sonlyonestudentintheschoolwhoIwanttosee.Doyouknowthewomaninbluewithababyonherbackwhoisworkinginthefields?5.在非限制性定语从句中指人Imetafriendofmineinthestreet,whohadjustcomefromAmerica.6.定语从句中有插入语时,且先行项为人时JacksonisamanwhoIbelieveishonest.定语从句中只用THAT,不用which的情况1.当先行词是不定代词，如all,everything,anything,nothing,much,few,little,none,theone等AllTHATcanbedonehasbeendone.Ididn'twantthisrecorder;IwanttheoneTHATwasborrowedyesterday.2.先行词（指物的）前面有only,few,oneof,little,no,all,every,very等词修饰时There'snodifficultyTHATwecan'tovercome.I'vereadallthebooksTHATcanbeborrowedhere.ThisistheverymanTHATIwanttosee.3.先行词被序数词first,last,next等或形容词的最高级修饰时ThisisthefirstletterTHATI'vewritteninEnglish.SheisthemostcarefulgirlTHATI'veeverknown.4.当先行词既有人又有物时TheytalkedaboutthepeopleandplacesTHATtheyhadvisited.5.当先行词是系动词be后面表语或关系词本身是从句的表语时Shanghaiisn'tthecityTHATitusedtobe60yearsago.HeisnolongerthemanTHATheusedtobe.6.当主句是以who,which或what开头的特殊疑问句时WhoisthemanTHATiswaitingattheschoolgate?WhichisthecarTHATranoveradogyesterday?WhatdidyouseeTHATmadeyousoangry?7.当主句以Therebe…结构开头时，或关系代词在therebe…结构中作实义主语，先行项为物ThereisaseatinthecornerTHATisstillfree.TherearetwobooksonhistoryTHATareforyou.The9.15isthefastesttrainTHATtherehaseverbeen.8..当先行词是基数词时YesterdayIcaughttwofishandputtheminabasinofwater.NowyoucanseethetwoTHATarestillalive.