初中英语语法中的8种时态一、 一般现在时 1.概念:经常、反复发生的动作或行为及现在的某种状况。 2.时间状语: always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, 3.基本结构:动词 原形 (如主语为第三人称单数,动词上要改为第三人称单数形式) 4.否定形式:am/is/are+not;此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。 5.一般疑问句:把be动词放于句首;用助动词do提问,如主语为第三人称单数,则用does,同时,还原行为动词。6.例句:. It seldom ['seld?m]很少snows here. He is always ready to help others.Action speaks louder than words.. 二、 一般过去时 1.概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。 2.时间状语:ago, yesterday, the day before yesterday, last week,last(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc. 3.基本结构:be动词;行为动词 的过去式 4.否定形式:was/were+not;在行为动词前加didn't,同时还原行为动词。 5.一般疑问句:was或were放于句首;用助动词do的过去式did 提问,同时还原行为动词。6.例句:She often came to help us in those days. I didn't know you were so busy.三、 现在进行时 1.概念:表示现阶段或说话时正在进行的动作及行为。 2.时间状语:now, at this time, days, etc. look . listen 3.基本结构:be+doing4.否定形式:be+not+doing. 5.一般疑问句:把be动词放于句首。 6.例句: How are you feeling today? He is doing well in his lessons. 四、 过去进行时1.概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作。 2.时间状语:at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等。3.基本结构 s+was/were+doing 4.否定形式:s+was/were + not + doing. 5.一般疑问句:把was或were放于句首。(第一个字母大写) 6.例句:At that time she was working in a PLA unit. When he came in, I was reading a newspaper.五、 现在完成时 1.概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。2.时间状语:yet,already,just,never,ever,so far,by now,since+时间点,for+时间段,recently, lately, in the past few years, etc. 3.基本结构:have/has + done4.否定形式:have/has + not +done. 5.一般疑问句:have或has。
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