中考必备的八大时态练习题.doc

中考必备的八大时态一.一般现在时1 定义:表示经常发生的动作或存在的状态.2 结构:sb.+动词原形/动词的第三人称单数3 标志：often usually sometimes always every day.等e.g I often _( play) soccer after class. Exercises:He usually _(do) his homework at six.Jim always _(talk)in class.现在进行时1 定义：表示说话时正在进行的动作或存在的状态。2 结构：sb+be(am is are)+doing (动词+ing)3标志：now look listen Its+几点e.g He _(watch) TV now .Exercises Look! They_(swim)Listen!Jim_(sing)Its six oclock now.We _(have)sup