【中考复习】【过去进行时】课件PPT

这是一份【中考复习】【过去进行时】课件PPT，共18页。PPT课件主要包含了过去进行时，过去的某一时刻，过去的某一阶段，时间状语标志词等内容，欢迎下载使用。

概念构成现在分词变化规则时间状语when/while的使用区分
概念：表示过去在某一时刻正在进行的动作或过去某一阶段一直进行的动作。
概念1：表示过去在某一时刻正在进行的动作。e.g. I was discussing my hmewrk with my classmates at 9:00pm last night.
概念2：表示过去某一阶段一直进行的动作。 was writing that stry frm 7 t 9 yesterday mrning.
构成：肯定句：主语+was/were+现在分词+其他 was wrking last night.
构成：否定句句：主语+was/were+nt+现在分词+其他 wasn’t wrking last night.
构成：疑问句：Was/were+主语+现在分词+其他？ he wrking last night?
现在分词变化规则：1. 一般情况下直接v+ingwrk---wrking、d---ding、g---ging
现在分词变化规则：2. 以不发音的e结尾：去掉结尾的e，再加ingmve---mving、clse---clsing
现在分词变化规则：3. 以ie结尾的动词，变ie为y再加ingdie---dying、lie---lying
现在分词变化规则：4. 以重读闭音节结尾的动词，双写末尾的辅音字母再加ingbegin---beginning、drp---drpping
at that time/mment. at that time f ·····
this time+过去时间：when/while
特殊用法进行时与always连用：表示强烈的情感，如喜欢或者厌恶。e.g. They were always talking。 was always messing up the kitchen.
when: at r during the timeE.g. The by was playing in the playgrund when the earthquake hit the city. When the by was playing ing the playgrund, he fund a kid was crying.
when/while区分
while: during the time 连接两个动词表示过去的两个动作同时进行。E.g. While the by was playing ing the playgrund, he fund a kid was crying.