《引导的虚拟条件句课件.ppt》由会员分享，可在线阅读，更多相关《引导的虚拟条件句课件.ppt（18页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、关于引导的虚拟条件关于引导的虚拟条件句句第1页，此课件共18页哦虚拟语气(if 条件句)含含含含义义义义：其其其其假假假假设设设设是是是是不不不不可可可可能能能能或或或或不不不不大大大大可可可可能能能能发发发发生生生生或或或或实实实实现现现现的的的的；主主主主从从从从句句句句皆皆皆皆须须须须用用用用虚虚虚虚拟拟拟拟 I If f t th he e w wo or rk ki in ng g c co on nd di it ti io on ns s a ar re e n no ot t t to oo o b ba ad d,I I w wi il ll l a ac cc ce ep
2、pt t t th he e j jo ob b.（真真真真实实实实条条条条件件件件句句句句：对对对对现现现现有有有有事事事事实实实实的的的的一一一一种种种种陈陈陈陈述述述述，使使使使用用用用的的的的是是是是陈陈陈陈述述述述语语语语气气气气）-表表表表达达达达一一一一种种种种看看看看法法法法（工工工工作作作作条条条条件件件件状状状状况况况况未未未未知知知知）I If f t th he e w wo or rk ki in ng g c co on nd di it ti io on ns s w we er re e n no ot t t to oo o b ba ad d,I I w w
3、o ou ul ld d a ac cc ce ep pt t t th he e j jo ob b.（非非非非真真真真实实实实条条条条件件件件句句句句-虚虚虚虚拟拟拟拟语语语语气气气气）表表表表达达达达一一一一种种种种假假假假设设设设（与与与与事事事事实实实实相相相相反反反反-工工工工作作作作条条条条件件件件已已已已经经经经很很很很糟糟糟糟糕糕糕糕了了了了）第2页，此课件共18页哦If 引引导导的的虚虚拟拟条条件件句句的的三三种种类类型型带if的虚拟条件句省略if的虚拟条件句隐藏if的虚拟条件句第3页，此课件共18页哦与与现现在在事事实实相相反反：if条件句用一般过去时（动词be用were
4、），主句用would(should/could/might)+动词原形、带、带if的虚拟条件句的虚拟条件句eg:I am sorry I am very busy just now.If I had time,I would certainly go to the movies with you.If you could bear the loneliness,you might succeed.第4页，此课件共18页哦与与将将来来事事实实相相反反(推推测测将将来来)：if 条件句中用过去时，或should/were to+动 词 原 形，主 句 用 would(should/could/mi
5、ght)+动词原形。eg.If she were here this evening,we would go shopping.（从句：一般过去时）If Mary were to marry Jack,she would be happy.（从句：were+动词不定式）If she should know it,she would tell me.(But I doubt)（从句：should+动词原形）第5页，此课件共18页哦If we hadnt made adequate preparations,the party wouldnt have been so successful.The
6、 flood might have caused great damage to the people,if we hadnt built so many dams.与与过过去去事事实实相相反反：if 条件句中用过去完成时，主句用would（should/could/might）+have+过去分词。第6页，此课件共18页哦条件从句条件从句条件从句条件从句结果主句结果主句结果主句结果主句与现在事实相反与现在事实相反与现在事实相反与现在事实相反If If +主语主语主语主语+过去式过去式过去式过去式主语主语主语主语 +would/would/should/could/should/could/m
7、ight do might do 与将来事实相反与将来事实相反与将来事实相反与将来事实相反If If+主语主语主语主语+过去式过去式过去式过去式主语主语主语主语 +would/would/should/could/should/could/might domight dowere to do were to do/should/could do)/should/could do)与过去事实相反与过去事实相反与过去事实相反与过去事实相反If If+主语主语主语主语 +had had+过过过过去分词去分词去分词去分词主语主语主语主语 +would/would/should/could/should
8、/could/might have donemight have doneIf引导虚拟条件句中的谓语动词变化第7页，此课件共18页哦与将来事实相反时从句中的三种谓与将来事实相反时从句中的三种谓语语v变形：变形：一一般般过过去去时时w we er re e +t to o d do o S Sh ho ou ul ld d/c co ou ul ld d d do o 注注：这这三三种种均均可可用用，不不同同的的是是在在表表示示推推测测将将来来的的时时候候，可可能能性性的的程程度度不不同同。I If f i it t s sn no ow we ed d t to ommo or rr ro o
9、w w,I I s sh ho ou ul ld d /w wo ou ul ld d s st ta ay y a at t t to ommo or rr ro ow w.（常常用用形形式式）I If f i it t w we er re e t to o s sn no ow w t to ommo or rr ro ow w,.（可可能能性性较较小小）I If f i it t s sh ho ou ul ld d s sn no ow w t to ommo or rr ro ow w,（可可能能性性较较大大）第8页，此课件共18页哦.虚虚拟拟条条件件句句中中if的的省省略略或或隐
10、隐藏藏1.省略if 的虚拟条件句隐藏 if 的虚拟条件句-无“条件”的虚拟语气句子第9页，此课件共18页哦1.省省略略if 的的虚虚拟拟条条件件句句(主主要要用用于于书书面面语语)在虚拟条件句中，有时可将引导虚拟条件句的连词if省略，但此时应用倒倒装装句型，即将从句中的were,should,had 等提到句首。第10页，此课件共18页哦1.省省略略if 的的虚虚拟拟条条件件句句如果她在这里，她也同意的。If she were here,she would agree too.Were she here,she would agree too.假若明天下雨，我们只好推迟这场比赛。If it s
11、hould rain tomorrow,we should have to put off the match.Should it rain tomorrow,we should have to put off the match.第11页，此课件共18页哦1.省省略略if 的的虚虚拟拟条条件件句句要是我们当时早点找到他的话，我们就可以救活他。If we had found him earlier we could have saved his life.Had we found him earlier we could have saved his life 第12页，此课件共18页哦1.省
12、省略略if 的的虚虚拟拟条条件件句句的的否否定定式式注注意意，如如果果条条件件从从句句的的谓谓语语为为否否定定式式，其其中中的的否否定定词词n no ot t应应应应置置置置于于于于主主主主语语语语之之之之后后后后，而而不不能能与与w we er re e,s sh ho ou ul ld d,h ha ad d 等等缩缩略略成成WWe er re en n t t,S Sh ho ou ul ld dn n t t,H Ha ad dn n t t而而置置于于句句首首。我我如如不不是是警警告告了了你你，你你就就可可能能丧丧命命了了。正正：I If f I I h ha ad dn n t t
13、 w wa ar rn ne ed d y yo ou u,y yo ou u c co ou ul ld d h ha av ve e b be ee en n k ki il ll le ed d.正正：H Ha ad d I I n no ot t w wa ar rn ne ed d y yo ou u,y yo ou u c co ou ul ld d h ha av ve e b be ee en n k ki il ll le ed d.误误：H Ha ad dn n t t I I w wa ar rn ne ed d y yo ou u,y yo ou u c co ou u
14、l ld d h ha av ve e b be ee en n k ki il ll le ed d.第13页，此课件共18页哦1.省省略略if 的的虚虚拟拟条条件件句句有时省略if后提前到句首的had可能不是助动词，而是实义动词。如：Had I time,I would go with you.假如我有时间，我就同你们一起去。句中的had不是构成过去完成时的助动词，而是表示“有”，如果不省略if，其完整形式为：If I had time,I would go with you.第14页，此课件共18页哦Exercises：He must have had an accident,or he
15、 then_.Awould have been here Bshould be hereChad to be here Dwould be there第15页，此课件共18页哦 答案为A。or 在这里隐含了与过去事实相反的虚拟语气，表示if he had not had an accident,所以其后的主句用would have done 而不用其它的。第16页，此课件共18页哦Exercises：1 1.GGi iv ve en n mmo or re e t ti imme e a an nd d mmo on ne ey y,h he e _ _ _ b be et tt te er
16、r t th ha an n w wh ha at t i it t i is s.A A.d di id d B B.h ha av ve e d do on ne e C C.c co ou ul ld d h ha av ve e d do on ne e D D.w wo ou ul ld d d do o2 2.I If f y yo ou u e ex xp pl la ai in ne ed d t th he e s si it tu ua at ti io on n t to o y yo ou ur r s so ol li ic ci it to or r(律律师师)，h he e _ _ _ _ a ab bl le e t to o a ad dv vi is se e y yo ou u mmu uc ch h b be et tt te er r t th ha an n I I c ca an n.(2 20 00 05 5)w wo ou ul ld d b be e B B.w wi il ll l h ha av ve e b be ee en nC C.w wa as s D D.w we er re e 第17页，此课件共18页哦感感谢谢大大家家观观看看第18页，此课件共18页哦