would 和could的用法
2020-08-06 10:54:40文/王君婷單詞Could和Would是情態(tài)助動(dòng)詞,它們分別是動(dòng)詞can和will的過(guò)去時(shí)態(tài)。我們用“Could”這個(gè)詞來(lái)表達(dá)能力或過(guò)去的可能性,而“Would”可以用來(lái)表示意愿或當(dāng)我們想象一個(gè)情景時(shí)。

情態(tài)動(dòng)詞could的用法:1、表示能力,意思是:能,會(huì)。例子:Could you speak English then? 那時(shí)你能講英語(yǔ)嗎?注意:could(能)和was/were able to 都表示過(guò)去一般具有某種能力。2、表示可能性,意思是:可能。例子:He said he couldn't come. 他說(shuō)他不能來(lái)。3、提出請(qǐng)求、疑問(wèn)或看法例子:Could you let me have your passport? 你能讓我用你的護(hù)照嗎?4、could是虛擬語(yǔ)氣,代替can,在時(shí)間上與can沒(méi)有區(qū)別,只是語(yǔ)氣比can委婉。can語(yǔ)氣直爽、肯定。例子:How I wish I could go with you! 我多么希望和你們一道去!5、表示驚異、不信等情緒例子:She couldn't have left so soon. 她不可能這么快就走了。情態(tài)動(dòng)詞would的用法:1、用在疑問(wèn)句中,表示委婉,客氣的表達(dá),以代替比較生硬的will例子:Would you please ive me a hand? 您能幫我一個(gè)忙嗎?2、用在過(guò)去將來(lái)時(shí)態(tài)中,后面跟動(dòng)詞原形例子:Tom told us he would come over the next day. 湯姆告訴我們,他第二天會(huì)過(guò)來(lái)。3、用在固定搭配短語(yǔ)中would like to do sth 想要做某事例子:They【 would like to 】lend us a hand.could和would的區(qū)別:1、可能性差別:could do和would do的區(qū)別在于could do 是講能不能做到(做事情的能力) would do 是說(shuō)會(huì)不會(huì)去做,想不想(愿意不愿意) 一個(gè)是有沒(méi)有可能性,一個(gè)是有可能性但是更有選擇2、語(yǔ)氣差別:could和would都可用于虛擬語(yǔ)氣,它們之間只有細(xì)微的語(yǔ)氣差別。比如could有猜測(cè)之意。
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