初一英语四种时态讲解

1、初一英语四种时态讲解初中英语四种时态详细讲解（适合初一学生）1. 一般现在时：（1） 表示经常发生（2） 构成：先看主语主语是三单，动词+s主语非三单，动词用原形。they often watch tv.he often watches tv.(3)变化：问句：主语前+do/does，动词用原形；否定：主语后+dont/doesnt，动词用原形。do they often watch tv they dont often watch tv.does he often watch tv he doesnt often watch tv.2. 现在进行时：a) 表示现在正在发生。句中常有now，l

2、ook，listen等b) 构成：主语+be+doing she is watching tv now.c) 变化问句：提前be（am，is，are）is she watching tv now?否定：be后+notshe isnt watching tv now.d) 加ing的方法：一般直接+，去不发音的e加，闭音节双写+。3. 一般过去时：a) 表示 过去的动作或状态，句中常有yesterday，last等过去的时间。b) 构成：动作：主语+动词的过去式状态：主语+was/were(句中没实意动词)she watched tv last night.she was here last n

3、ight.c) 变化：问句：主语前+did，动词用原形did she watch tv last night?was she here last night?否定：主语后+didnt,动词用原形。she didnt watch tv last night.she wasnt watch tv last night.(4) 过去式：一般+ed；e结尾+d；辅音+y的，去y+ied；闭音节双写+ed；不规则的120页。4. 一般将来时：a) 表示：将来 ，句中有表示将来的时间：tomorrow、next、soon，in two days等b) 构成a:主语+will+do（任何人称）b:主语+sh

4、all+do（仅第一人称i，we）c:主语+be going to +do 如：a：she will watch tv this evening.b：we shall watch tv this evening.c：she is going to watch tv this evening.c) 变化问句：提前will/shall/bea:will she watch tv thisb: shall we watch tv c: is she going to watch 否定：在will /shall/be 后+nota: she wont watch tvb: we shall not watch shantc: she isnt going to watch there is a meeting next week.there was a meeting yesterda