If only與wish情況類似,它表示"但愿",用法與含義均與I wish相似,很多"I wish"引導(dǎo)的虛擬語氣都可以用If only取代,含義大致相同。例如:If only she had asked someone's advice!
標(biāo)簽:詞匯、比較 難度(4)|用途(5)|標(biāo)記( )
as if/though表示"好像",它也可以用來表示虛擬語氣。比如:She loves the child as if he were her own.這一句子就是虛擬語氣,與現(xiàn)在事實相反;He talks as if he had been there many times.該句的虛擬語氣與過去事實相反。
標(biāo)簽:虛擬、詞匯 難度(3)|用途(5)|標(biāo)記( )
由as if/as though 引導(dǎo)的虛擬語氣,如果與過去事實相反,as if/as though謂語動詞要用had done;如果與現(xiàn)在事實相反,as if/as though謂語動詞要用did,這種用法與if only是非常相似的。
標(biāo)簽:虛擬、引導(dǎo)詞 難度(3)|用途(6)|標(biāo)記( )
only if表示"只有",if only則表示"如果......就好了",它們兩個意思差別較大,需要注意別弄混了。比如:I wake up only if the alarm clock rings.(只有鬧鐘響了,我才會醒。)If only I could see him once.(如果我能再見到他一次就好了。)
標(biāo)簽:詞匯、比較 難度(4)|用途(4)|標(biāo)記( )
在even if, even though 所引導(dǎo)的讓步狀語從句中,需要用"may/might+動詞原形",may/might可以省略,表示與現(xiàn)在相反的情況;從句用過去完成時,表示與過去相反的情況,類似的詞有though/even though/whatever/however/so long as等,主句、從句的結(jié)構(gòu)與if所引導(dǎo)的條件從句結(jié)構(gòu)相同。
標(biāo)簽:從句、讓步 難度(5)|用途(5)|標(biāo)記( )
熱門詞匯
advice n. 建議;忠告
talk vi. 談話;說閑話
as though 好像;仿佛
alarm n. 警報,警告器
ring vi. 按鈴;回響
even though 雖然,即使
however conj. 然而;可是
so long as 只要
我關(guān)注的話題
常用詞組--need have done
"need have done"表示本來需要做某事而沒有做。"needn't have done"則表示"本來不需要做某事而做了"。比如:I needn't have bought so much wine--only five people came.(我本來沒有必要買這么多酒,只來了五個人。)He need have hurried to the station. In that case, be wouldn't have missed the train.(他本來需要快點去車站,那樣的話,他就不會誤了火車。)