英语作文中非限定性定语从句【一】
1.主句是一般现在时，从句可以为各种时态。
2.主句是一般过去时，从句要用相应过去时态。
注意：从句描绘客观事实、真理、自然现象等，从句时态不受主句时态限制，仍用一般现在时。
例句：He answered that he was listening to me.
Father told me that practice makes perfect .
英语作文中非限定性定语从句【二】
1.从句为陈述句，常选择引导词that，that引导宾语从句无意义，不充当句子成分常省略。例句：He told us (that they would help us through the whole work.
2.从句为一般疑问句，常选择引导词if或whether，表示“是否”。在whether … or not结构中不能用if替换。例句：I don’t know if there will be a bus any more.
3.从句为特殊疑问句，常选择what,when,where,which,who,how等的疑问代词、副词作引导词。例句：He didn’t tell me when we should meet again.
英语作文中非限定性定语从句【三】
1.Theplace_______interestedmemostwastheChildren'sPalace.
A.WhichB.whereC.whatD.inwhich
2.Doyouknowtheman_______?
A.whomIspokeB.tow
hospokeC.IspoketoD.thatIspoke
3.Thisisthehotel_______lastmonth.
A.whichtheystayedB.atthattheystayed
C.wheretheystayedatD.wheretheystayed
4.Doyouknowtheyear______theChinesewasfounded?
A.whichB.thatC.whenD.onwhich
5.Thatistheday______I'llneverforget.
A.whichB.onwhichC.inwhichD.when
6.Thefactory______we'llvisitnextweekisnotfarfromhere.
A.whereB.towhichC.whichD.inwhich
7.Greatchangeshavetakenplacesincetheninthefactory_______weareworking.
A.whereB.thatC.whichD.there
8.Thisisoneofthebestfilms_______.
A.thathavebeenshownthisyearB.thathaveshown
C.thathasbeenshownthisyearD.thatyoutalked
9.Canyoulendmethebook______theotherday?
A.aboutwhichyoutalkedB.whichyoutalked
C.aboutthatyoutalkedD.thatyoutalked
10.Thepen______heiswritingismine.
A.withwhichB.inwhichC.onwhichD.bywhich
11.Theyarrivedatafarmhouse,infrontof______satasmallboy.
A.whomB.whoC.whichD.that
12.Itthereanyoneinyourclass______familyisinthecountry?
A.whoB.who'sC.whichD.whose
13.Iwanttousethesamedictionary______wasusedyesterday.
A.whichB.whoC.whatD.as
14.Icanneverforgettheday_______weworkedtogetherandtheday______wespenttogether.
A.when;whichB.which;whenC.what;thatD.onwhich;when
15.Thisisthereason______hedidn'tcometothemeeting.
A.inwhichB.withwhichC.thatD.forwhich
16.There’relotsofthings_____IneedtodobeforeIleave.
A．thatB.whoC.whyD.what
17.Doyouliketheredcar______wasmadeinTianjin?
A.whereB.whoC.whichD.when
18.--Doyouknoweverybody______cametotheparty?
--Almost,butIdon’tknowtheone______youtalkedwithnearthedoor.
A.who,/B.whose,thatC.that,whichD./,whom
19.Thisisall_____Iknowaboutthematter.
A.thatB.whatC.asD.whether
英语作文中非限定性定语从句【四】
当which引导的定语从句指代主句全部内容时，可以把which改为it，作形式主语，把原来的主句改成正在主语。或者把定语从句的整个信息改换为名词短语作主语，使原来的定语从句变成简单句。
例4： He indulges himself all day in computer games, which makes his parents extremely sad.
改为：It makes his parents extremely sad that he indulges himself all day in computer games.
他整天沉湎于电脑游戏，这使他父母伤心至极。(主语从句
或者：His indulgence in computer games all day makes his parents extremely sad. (名词短语
英语作文中非限定性定语从句【五】
介词短语替代定语从句有两种方式：(1省略“关系副词+主语+be动词”，或“关系代词+be动词”;(2根据从句的意思改编。
例1：We have never forgotten the days (when we were at college.
我们从来没有忘记在大学对书的日子。
例2：I don’t know the person (who is in your office.
在你办公司的那个人我不认识。
例3：Those who have high expectations but do not have those relationship skills are likely to be brought down to earth fairly quickly as their Prince or Princess Charming falls off their pedestal.
改为：Those with high expectations but without those relationship skills are likely to be brought down to earth fairly quickly as their Prince or Princess Charming falls off their pedestal.
那些对婚姻期望太高却又不具备处理婚姻关系技巧的人，一旦他们心中的白马王子或白雪公主从神圣的光环里跌落，他们就会很快地回到现实中。
例4：He is not a person who likes to haggle over every ounce.
改为：He is a person above personal interests.
他不是一个斤斤计较的人。
