小升初英语专项复习第12讲：一般现在时 外研版一起

第12讲 一般现在时1、定义：表示经常发生或习惯性的动作、状态句中通常有usually，often，every day，sometimes，always，at weekends，on Sundays等表示经常性时间的短语 2、构成：1）当谓语是be动词时，一般现在时的构成：主语＋be动词＋其他如：I am a student. He is Jim’s father. They are from Japan.2）当谓语是行为动词时，一般现在时的构成：①主语（非第三人称单数）＋动词原形＋其他如：I often watch TV at the weekends. Mr Green and Mrs Green like collecting stamps.②主语（第三人称单数）＋动词的第三人称单数形式＋其他如：Jim usually visits his grandparents on Sundays. She sometimes goes to the park with her mother. 3、动词三单形式的变化规则：① 一般情况下，直接加s 如：read-reads，swim-swims② 以s，x，sh，ch，o结尾，加es 如：wash-washes，watch-watches，do-does③ 以辅音字母＋y结尾，变y为i，再加es 如：study-studies，fly-flies④ 不规则变化 如：have-has4、一般现在时的句型转换：肯定句否定句一般疑问句及回答They watch TVevery day.They don’t watch TVevery day.—Do they watch TV every day?—Yes, they do. / No, they don’t.She watches TVevery day.She doesn’t watchTV every day.— Does she watch TV every day?—Yes, she does. / No, she doesn’t.say-saidsing-sangswim-swamtake-took4、一般过去时的句型转换肯定句否定句一般疑问句及回答He watched TV yesterday.He didn’t watch TV yesterday. —Did he watch TV yesterday?—Yes, he did. / No, he didn’t.They played games just now.They didn’t play games just now.— Did they play games just now?—Yes, they did. / No, they didn’t.。