新概念英語第三冊語法解析：虛擬語氣1.與現(xiàn)在事實(shí)相反的虛擬：

If+did/were+...,...would/should/could/might+do(動詞原形)

IfIwereyou,Iwouldgoabroadatonce.(Iamnotyou.)

Ifheknewitnow,hecouldhelpme.(Hedoesn”tknowitnow.)

2.與過去事實(shí)相反的虛擬：

If+haddone+...,...would(might)havedone...

IfIhadknownyourtelephonenumberyesterday,Iwouldhavephonedyou.(Ididn”tknowyourtelephonenumber.)

Ifyouhadcomeherealittleearlierjustnow,youmighthavemether.(Youdidn”tcomehereearlier.)

3.與將來事實(shí)相反的虛擬：

(1)If+should+v.,...would+v.(可能性很小)(譯作“萬一”)

Ifitshouldraintomorrow,youcouldstayathome.

IfIshouldfail,whatshouldIdo?

(2)If+did/wereto+v...,would+v.(完全不行能)

Ifthesunweretoriseinthewest,Iwouldlendyouthemoney.

Ifyoufinisheditin3minutes,Iwouldgiveyoumycar.

4.金牌特別重點(diǎn)

[簡潔聯(lián)想記憶]：

●以下動詞后的“賓語從句”中需要用虛擬形式，即should+動詞原形，shoud在美國英語中要省略(TOEFL語法考點(diǎn))。此類常見的動詞有：order,ask,decide,demand,require,recommend,suggest(建議),insist(堅(jiān)決要求),advise,etc.

Hesuggestedthatwe(should)helpthemwithEnglish.

Theteacherorderedthatthehomework(should)befinishedwithinhalfanhour.

●以下名詞后的同位語從句中要用“should+動詞原形”(should可省去)的虛擬。此類常見的名詞有：suggestion,order,request,demand,importance,proposal.

Hemadeasuggestionthatwe(should)haveafancydressparty.

Ithinkitisathingofimportancethatit(should)bedonesoon.

●Itis/wasimportant/necessary/natural/essential/advisable/strange/surprising,ect.+that+主語+should+v.

Itisstrangethatyoushouldsaysuchathing.

Itwasimportantthatyoushouldtellmealltheinformation.

●wish后的賓語從句中，asif后的狀語從句中，須用以下的虛擬形式：

主+wish+(that)+主+did/were(指現(xiàn)在)

haddone(指過去)

would+v.(指將來)

IwishthatImetmyunclenow.

IwishIhadmetmyuncleyesterday.

IwishIcouldmeetmyuncletomorrow.

●Itis(high)timethat...+did/were...

Itistimethatyouwenttobed.

●wouldratherthat...+did/were...

Iwouldratherthatyouwerenotherenow.

●wouldsoonerth