2025年译林版 100天中考英语必备基础知识背诵-第20天

译林版 100天中考英语必备基础知识背诵-第20天 while/ when / as的用法详解 1. 两个延续性动词同时进行，主句从句都用进行时，只能用while。 I was watching TV while my brother was playing computer games. People were running in all directons while pieces of glass and bricks were falling down. 2. 两个动作中，一个是延续性，一个是非延续性动词，while引导的时间状语从句中用延续性动词，用过去进行时，主句中用非延续性动词，用过去时态。 The earthquake started while/ when I was doing my homework. 3. 通常情况下，非延续性动词前只能用when。 I was trying to find my way out when I suddenly heard some noise. 4. as 当... 时候，随着 （引导时间状语从句） Farmers work to harvest crops, as the days are shorter and the temperature drops. 其他的用法 （1）while然而 Many birds live comfortably in Zhalong nature reserve all year round, while some only stay there for a short time. while名词，一会儿，一段时间 for a short while 一小会儿 因为while表示的是一段时间，故与介词for搭配使用 after a while 过了一会儿 ina short while 很快；不久（以后） （2）as作为 As a student, we should study hard. 副词，同样地 He runs as fast as Paul. 连词，像...一样 Run as fast as you can. choose 挑选和选择，过去式chose choose sb as/ to be 选择某人作为 名词choice plan 名词，打算，计划 未来计划 future plans 动词，计划 现在分词planning 过去式planned plan to do sth 计划做某事 square 形容词，方形的 名词，平方 nine square meters 名词，正方形；广场 A square has four sides. 正方形有四条边。 tidy 动词，收拾，整理 tidy up 收拾妥，整理好 tidy up your desk/ tidy your desk up tidy it up secret 名词，秘密 keep a secret / secrets 保密 keep the secret to oneself 把秘密埋在心里 keep the secret for sb 替某人保密 形容词，秘密的 keep it secret 保密 a secret house wrong 副词，错误地，不对 go wrong 弄错，犯错，机器出故障 拼错单词 spell the words wrong 形容词，错的 stick 及物和不及物动词，过去式stuck stick a stamp on a letter 把邮票贴在信上 shade 名词，阴凉处，树荫处，不可数 没有树可以遮荫。There are no trees to give shade. complete 及物动词，完成 complete the work 完成这项工作 形容词，完整的 a complete story 一个完整的故事 paint，不可数名词，颜料 动词，油漆，图画 paint the wall white 把墙涂成白色 furniture 不可数，家具 a piece of furniture 一件家具 a lot of furniture 许多家具 instruction 指示，复数 instructions 用法说明，操作指南 一本说明书 an instruction book had better （=’d better）最好 最好做某事 had better do sth 最好不要做某事 had better not do sth exactly，副词，确切地，精确地（它在句中地位置非常灵活） 飞机正好10点到。The plane arrived at exactly 10 o'clock. Please tell me exactly what I should do. 请确切告诉我我该做什么。 not exactly 不很，表示轻微否定 学科网（北京）股份有限公司 $$