内容正文:
高中译林版
【语法专版】
虚拟语气系统讲解
语法专版
【专题】虚拟语气系统讲解
特殊结构与综合语法
考频分析
译林版高中特殊结构与综合语法中,虚拟语气是重点语法模块,考频占句法总量的15%左右,贯
穿试卷核心题型:单项选择(1-2题)、完形填空(2-3题)、语法填空(1-2题)、书面表达(核心考
察,直接影响语气准确性与情境合理性)。在语境理解类题目中,虚拟语气的时态搭配、情态动词
使用及与陈述语气的辨析往往是解题关键。
考查内容
·基本结构识别:与现在事实相反、与过去事实相反、与将来事实相反的从句及主句谓语动词形式
。特殊句式应用:wish后的宾语从句、if only从句、asif/as though从句中的虚拟语气形式
。常见固定结构:suggest/,insist/order等动词后的宾语从句、It's important/natural that从句、wouldrather
后的从句中虚拟语气的使用规则
知识点一:虚拟语气的基本概念及分类
1.虚拟语气的定义(表假设或非真实情况)
。核心功能:表示与事实相反的假设、愿望、建议、命令或推测等非真实情况
·例句:
l.If I were you,.I would study harder..(与现在事实相反的假设)
2.I wish I could fly.(无法实现的愿望)
2.虚拟语气在条件句中的应用
1.与现在事实相反:f从句用一般过去时(be动词用were),主句用"would/should/might/could+动词
原形
·例句:If she had time,.she would help you.(实际她没时间)
2.与过去事实相反:if从句用过去完成时,主句用'would/should/might//could-+have+过去分词”
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·例句:Ifhe had studied,,he would have passed the exam.(实际他没通过)
3.与将来事实相反:if从句用'should+动词原形P'were to+动词原形/一般过去时,主句用'would/should/might//could
动词原形
。例句:If it should rain tomorrow,we would cancel the picnic.(推测明天不太可能下雨)
3.虚拟语气在名词性从句中的应用
1.宾语从句(wsh后的虚拟):对现在虚拟用一般过去时,对过去虚拟用过去完成时
·例句:I wish I had met you earlier.(对过去的虚拟)
2.主语从句(Itis+形容词/名词+hat从句):常用'should+-动词原形”(should可省略)
·例句:It is necessary that he(should)finish the work today..(表建议)
3.表语从句/同位语从句(suggestion/order等名词后的从句):用”should+动词原形'(should可省略)
●例句:His suggestion is that we(should)start at once.(表建议)
4.虚拟语气的其他特殊用法
1.asif/as though引导的状语从句:根据语境用一般过去时(表现虚拟)或过去完成时(表过去虚拟)
·例句:She talks as if she knew everything.(实际她并非无所不知)
2.would rather后的宾语从句:对现在/将来虚拟用一般过去时,对过去虚拟用过去完成时
·例句:I would rather you had told me the truth.(对过去的虚拟)
知识点二:虚拟语气的基本类型及用法
1.与现在事实相反的虚拟语气(假设现在不存在的情况)
1.结构
·主句:主语+would/could/should/might+动词原形
·从句(if引导):if+主语+动词过去式(be动词统一用were)
2.例句
●If I were you,I would study harder..(从句be动词用were;主句would+-原形study)
。If she had time,she might go to the party.(从句动词过去式had:主句might-+原形go)
2.与过去事实相反的虚拟语气(假设过去未发生的情况)
1.结构
2
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。主句:主语+would/could/should/might+have+动词过去分词
。从句(if引导):if+主语+had+动词过去分词
2.例句
·If he had studied,.he would have passed the exam.(从句had+-studied;主句would have+-passed)
。If we had left earlier,.we might have caught the bus.(从句had+left;主句might have+caught)
3.与将来事实相反的虚拟语气(假设将来不太可能发生的情况)
1.结构
·主句:主语+would/could/should/might+动词原形
·从句(if引导):if+主语+should+动词原形/were to+动词原形/动词过去式
2.例句
●If it should rain tomorrow,we would stay at home.(从句should+rain;主句would+原形stay)
●If she were to come,I might tell her the truth.(从句were to+-come:主句might-+原形tell)
4.虚拟语气在宾语从句中的应用(表示建议、命令、要求等)
1.常用动词
·suggest(建议)、insist(坚持要求)、order(命令)、require(要求)、advise(建议)
2.结构
·主句动词+that+主语+(should+动词原形(should可省略)
3.例句
·The teacher suggested that we(should)finish the task on time.(suggest后省略should,用s动词原形
finish)
●He insisted that she(should)go with him.(insist后省略should,用动词原形go)
5.虚拟语气在wish后的用法(表示难以实现的愿望)
1.与现在事实相反:wish+hat+主语+动词过去式(be动词用were)
。例句:I wish I were taller.(动词过去式were)
2.与过去事实相反:wish+that+主语+had+动词过去分词
。例句:She wishes she had seen the film.(had+过去分词seen)
3.与将来事实相反:wish+that+主语+would/could+动词原形
●例句:I wish you would help me.(would+动词原形help)
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虚拟语气系统讲解
知识点三:虚拟语气
1.与现在事实相反的虚拟
1.基础结构(中考核心):
。If+主语+动词过去式(be动词用were),主语+would/might/could+动词原形→例句:IfI
were you,I would study harder.
。If+主语+动词过去式,主语+should+动词原形→例句:Ifhe had time,he should help us,
。If+主语+动词过去式,主语+might+动词原形→例句:If it rained tomorrow,we might stay at
home
2.与过去事实相反的虚拟
1.基础结构(中考常考):
·If+主语+had+过去分词,主语+would have+过去分词,例句:If she had studied,she would
have passed the exam
·If+主语+had+过去分词,主语+could have+过去分词→例句:If I had known the news,.I could
have told you.
。If+主语+had+过去分词,主语+might have+过去分词→例句:If he had come earlier,he might
have met her
3.特殊句式虚拟
1.固定句型(中考易错):
。It'stime+主语+动词过去式should+动词原形→例句:It's time we went to bed./It's time
we should go to bed.
。wish+主语+动词过去式(与现在相反)→例句:I wish I were a bird..
。wish+主语+had+过去分词(与过去相反)→例句:I wish I had seen you yesterday.
·suggest that+主语+(should)+动词原形→例句:He suggests that we(should)start early.
。insist that+主语+(should+动词原形→例句:She insists that he(should)come with us.
考法精析
考法一:虚拟语气在条件句中的应用
核心:根据语境判断与现在、过去或将来事实相反的假设,选择正确的虚拟语气结构
真题1(语法填空):
IfI(have)time yesterday,I would have gone to the concert with you.
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答案:hadhad
解析:由时间标志词“yesterday”可知,此处表示与过去事实相反的假设,if从句应用过去完成时,
have的过去完成时形式为had had.
真题2(完形填空):
If it tomorrow,we would put off the sports meeting.
A.rains B.rained C.will rain D.would rain
答案:B
解析:此处表示与将来事实相反的假设,if从句可用一般过去时,rain的过去式为rained。
考法二:虚拟语气与情态动词混合辨析
核心:结合语境判断是否使用虚拟语气,并正确选择情态动词(如would/should/might/could)及其
与虚拟语气的搭配形式
真题1(语法填空):
If she_(can)speak French,she would have translated the letter for us yesterday.
答案:could have spoken
解析:由主句would have translated'可知是与过去事实相反的虚拟条件句,if从句应用过去完成时:
此处”can”需用过去式could,故填could have spoken(隐含”她实际不会说法语'的事实)。
真题2(单项选择):
The teacher suggested that we_(must)finish the project by Friday,but we(can)not meet the deadline
because of the heavy rain.
A.must;could B.should;could C.must;can D.should;can
答案:B
解析:suggest后的宾语从句需用虚拟语气”should+-动词原形”(should可省略),第一空用should:
第二空由because of the heavy rain''可知是过去客观能力不足,用could not表示”过去不能”,故选
B。
考法二:虚拟语气与定语从句综合运用
核心:在包含定语从句的复合句中,根据语境判断主句或从句是否使用虚拟语气,并正确选择关系
词
真题1(语法填空):
He talked about the school as if it_(be)the place where he(study)for ten years.
答案:were;had studied
解析:asif引导的状语从句表现在虚拟,be动词用were;定语从句先行词为place,关系副词where
在从句中作状语,”学习十年”是与过去事实相反的虚拟(实际未在此学习),用过去完成时had
studied。
真题2(单项选择):
I wish to thank Professor Smith,without_help we_(not finish)the experiment last month
A.his;couldn't have finished B.whose;couldn't have finished
C.his;can't finish D.whose;can't finish
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答案:B
解析:逗号后为非限定性定语从句,先行词Professor Smith与help构成所属关系,用关系代词whose:
'without whose help”相当于虚拟条件句'if we hadn't had his help'”,主句表与过去事实相反的结果,
用couldn't have finished,故选B。
考法二:情态动词与定语从句混合辨析
核心:在包含定语从句的复合句中,根据语境选择合适的情态动词,并正确使用关系代词/副词
真题1(语法填空):
The dictionary-you_(must)buy yesterday is the one which-(can)help you improve your vocabulary.
答案:that/which;nust have bought,:can
解析:第一空为定语从句,先行词dictionary指物,关系代词that/which在从句中作宾语可省略:由
时间标志词'yesterday'可知”买词典”是对过去的肯定推测,用must have bought:第二空which指
代dictionary,表”现在能力”用cane
真题2(单项选择):
This is the only book__(may)help you solve the problem,but you_(should)have read it carefully
last week
A.that;may,should B.which;might;must
C.that;might;should D.which;may,must
答案:C
解析:先行词book有only修饰,定语从句用关系代词that:第一空表”可能性推测',might语气
比may更委婉;第二空由'last week',可知是对过去的虚拟,”本应该做却未做”用should have read,
故选C。
考法三:虚拟语气与定语从句的综合应用
核心:结合虚拟语气的非真实条件句结构与定语从句的关系代词/副词用法,判断复杂句式中的语
法正确性。
真题1(单项选择):
If I were the student_won the first prize,I would thank my teachers who helped me a lot.
A which B who C whom D whose
答案:B
解析:定语从句先行词为“student”(指人),且在从句中作主语,需用关系代词who:主句为与现
在事实相反的虚拟语气(if从句用were,主句用would+-动词原形),符合虚拟语气基本结构。
真题2(语法填空):
She wishes she could meet the singer-songs are very popular among teenagers now.
答案:whose
解析:wsh后的宾语从句为与现在事实相反的虚拟语气(用could+动词原形):定语从句先行词为
“singer"”,关系代词whose在从句中作定语修饰“songs”,表示“歌手的歌曲”,符合whose指人且
作定语的用法。
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解题小妙招
虚拟语气妙招
虚拟语气看条件,时间相反是关键:
与现相反主would,f从句用一过:
与过相反主would have,if从句过完时:
与将相反主would,.if从句用一过或should do:
情态动词要搭配,could might表可能:
suggest后的宾从,should加动原(should可省):
asif引导方式状从,现在虚拟用were,过去虚拟用had done:
定语从句看先行,关系代词/副词要选对:
综合运用需细心,主从时态要分清。
真题演练
演练一:单项选择试题(共10题)
1.If I you,I would take the chance to study abroad.
A.am B.was C.were D.be
2.The doctor suggested that she-more rest after the operation.
A.has B.had C.should have D.will have
3.Youhave told me the truth earlier-I was worried about you!
A.should B.must C.need D.could
4.This is the only dictionary_can help you with technical terms.
A.what B.which C.that D.who
5.If ittomorrow,we would cancel the picnic.
A.rains B.rained C.will rain D.would rain
6.He talked about his childhood as if he-there yesterday.
A.was B.is C.had been D.has been
7.The girlwe met at the party is a famous singer.
A.which B.whom C.whose D.what
8.Youhave finished the work alone-there'stoo much for one person.
A.nustn'’tB.can'’tC.needn’tD.shouldr't
9.I would rather youme the news last week.
A.told B.tell C.had told D.would tell
10.It is necessary that he-the report before Friday.
A.finishes B.finished C.will finish D.(should)finish
7
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演练二:填空试题(共10题)
1.If she(study)harder,she would have passed the exam.
2.He suggested that we_(start)the project next Monday.
3.This is the houseI lived when I was young.
4.You _(not buy)so much bread-we still have plenty.
5.She acts as if she(be)the boss of the company.
6.The book_cover is red was written by my favorite author.
7.If I(can)fly,I would travel around the world.
8.It is important that everyone(follow)the safety rules.
9.I(see)him yesterday-he must have left town.
10.We(arrive)on time,but the traffic was too heavy.
演练三:语法填空试题(共10空)
Last month,I visited a small town-(1)my grandfather grew up.He told stories about his childhood as
if he_(2)(live)there just yesterday.One story was about a teacher-(3)once said,"It is necessary
that every student_(4)(respect)others."My grandfather wished he(5)(spend)more time with that
teacher,but he had to move away at 12.
The town has changed a lot,but there's an old tree-(6)branches still reach the sky.My grandfather
said,"If this tree_(7)(be)a person,it would tell us centuries of history."I asked if he_(8)(show)me
the school he attended,but he said it had been destroyed.He added,"I(9)(visit)it often if it still existed."
As we left,he whispered,"You_(10)(treasure)your hometown-once it's gone,you can never get it
back.”
参考答案
演练-:1.C2.C3.A4.C5B6.C7.B8B9.C10.D
1.had studied 2.(should)start 3.where 4.needn't have bought 5.were 6.whose 7.could 8.(should)
follow 9.can't have seen 10.should have arrived
1.where 2.had lived 3.who/that 4.(should)respect 5.had spent 6.whose 7.were 8.could show
9.would visit 10.should treasure
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