请解释并说出“before，until，as soon as，after，while，when”等词的用法及意思 再帮我补充一些

Question

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Answer 1

before 在...以前，介词，一般后面接doing sth.如：I play volleyball before I doing my homework.常用短语：before long不久之后 before sunset 日落之前until 直到...才 一般与not连用，如：I didn't sleep until I finished doing my homework.until june 直到六月as soon as不久之后 常用短语：as soon as possible 尽可能地，如：We need to send the letter off as soon as possible.as soon as not 宁可after在..之后，后面一般接时段，如：after a few days 介词，后面接doing sth.After some time they came out.while当...的时候，后面加时间段，只能接延续性动词（延续性动词：动作可延续一段时间，而不是瞬间结束如：work，study，be动词等。）while引导的从句常用过去进行时，强调主从句动作同时进行时，主句也常用过去进行时如While I was reading the book，my mom was cooking dinner.如果主句动作在从句的过程中发生，从句常用进行时。while可表示对比或相反的情况，意思“而”，表示并列关系 I am good at English while Jim does well in English.when引导的从句可以是延续性动词，也可以是非延续性动词（即，瞬间动词，极为短暂，如knock，hit）when引导的时间从句用一般过去时，主句用过去进行时。The boy was sleeping when his mom got back home.（补充：in ，还有一个意思，就是在...之后，一般用于将来时态，in three days 在三天之后，若是问，就要用How soon）

Answer 2

在....之前 He will leave here before Monday.直到.....才... I dont go to bed until 10. 一....就..... I will call you as soon as i arrive home.在.....之后 the students play games after class.当...的时候(表示两件事同时进行的) Mum is cooking while Dad is reading the newspaper当...的时候(两件事不是同时进行的) He fixes the bike when the doorbell is ringing.本回答被网友采纳