微英語(yǔ) - 1000語(yǔ)法細(xì)節(jié):虛擬語(yǔ)氣005

5

有一種"含蓄虛擬條件句"是指沒(méi)有出現(xiàn)用if引導(dǎo)的條件句，而條件句的意思是用其他方式表達(dá)的。如：without, but for, otherwise, or, but that, given, provided, supposing, were it not for等等。例如：Given me more time, I would have worked out a more perfect scheme.

標(biāo)簽：虛擬、句型　　難度（6）｜用途（4）｜標(biāo)記（ ）

在含蓄條件句中，有些條件從句不表達(dá)出來(lái)，只暗含在副詞、介詞短語(yǔ)、上下文或其他方式中。比如，條件可以暗含在短語(yǔ)中，如without...，but for...等。比如：But for his help, we would be working now./Without your instruction, I would not have made such great progress.

標(biāo)簽：條件句、意義　　難度（6）｜用途（5）｜標(biāo)記（ ）

把條件暗含在短語(yǔ)中的含蓄條件句是很常見(jiàn)的。如：We didn't know his telephone number；otherwise we would have telephoned him.暗含條件是otherwise；Without your help, we wouldn't have achieved so much.暗含條件是介詞短語(yǔ)without your help。

標(biāo)簽：條件、短語(yǔ)　　難度（5）｜用途（4）｜標(biāo)記（ ）

在whatever, whichever, whenever, whoever, wherever, however, no matter wh-等引導(dǎo)的讓步狀語(yǔ)從句中，如果指現(xiàn)在或?qū)?lái)，從句虛擬語(yǔ)氣結(jié)構(gòu)為may＋do。比如：We will finish it on time no matter what may happen.如果指過(guò)去，從句要用may＋have done。比如：You mustn't be proud whatever great progress you may have made.

標(biāo)簽：虛擬、引導(dǎo)詞　　難度（4）｜用途（6）｜標(biāo)記（ ）

熱門(mén)詞匯

otherwise adv. 否則；另外

provided conj. 假如；倘若

perfect adj. 完美的；最好的

scheme n. 計(jì)劃

instruction n. 指令；指示

achieve vt. 達(dá)到；完成

whatever conj. 無(wú)論什么

progress n. 進(jìn)步，發(fā)展

我關(guān)注的話(huà)題

常用詞組--could have done

　　與"can have done"的意思差別很大，"could have done"是虛擬語(yǔ)氣，表示對(duì)過(guò)去事情的假設(shè)，意思是本來(lái)能夠做某事而沒(méi)有做。比如：He could have passed the exam, but he was too careless.（本來(lái)他能夠通過(guò)考試，但是他太粗心。）