助動(dòng)詞should,would的用法
1)should無(wú)詞義,只是shall的過(guò)去形式,與動(dòng)詞原形構(gòu)成過(guò)去將來(lái)時(shí),只用于第一人稱,例如: I telephoned him yesterday to ask what I should do next week. 我昨天給他打電話,問(wèn)他我下周干什么。
比較: "What shall I do next week?" I asked. "我下周干什么?"我問(wèn)道。(可以說(shuō),shall變成間接引語(yǔ)時(shí),變成了should。)
2) would也無(wú)詞義,是will的過(guò)去形式,與動(dòng)詞原形構(gòu)成過(guò)去將來(lái)時(shí),用于第二、第三人稱,例如: He said he would come. 他說(shuō)他要來(lái)。 比較: "I will go," he said. 他說(shuō):"我要去那兒。" 變成間接引語(yǔ),就成了: He said he would come. 原來(lái)的will變成would,go變成了come.