初一英语四种时态讲解

1、精品文档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/doesn，t动词用原形。 Do they often watchTV? They don t often watch. TVDoes he often watch TV?He doesn t enoft watch TV.2. 现在进行时：a) 表示现在正在发生。句中常有 now，lo

2、ok，listen 等b) 构成：主语 +be+doingShe is watching TV now.c) 变化问句：提前 be（am，is，are）Is she watching TV now?否定： be 后+not.精品文档She isn t 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

3、.She was here last night.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 +didn 动t,词用原形。She didn t watch TV last night.She wasn t 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：.精品文档a) 表示：将来 ，句中有表示将来的时间： tomorrow、next、soon， i

4、n two days 等b) 构成A: 主语 +will+do （任何人称）B: 主语+shall+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 this ?B: Shall we watch TV ?C: Is she going to watch ?否定：在 will /shall/be 后+notA: She won t watch TVB: We shall not watchshan tC: She isn t going to watchThere is a meeting next week.There was a meeting yesterday.