八种基本时态讲解.pptVIP

八种基本时态讲解 一、 一般现在时 二、 一般过去时 三、 现在进行时 四、 过去进行时 五、 现在完成时 六、 过去完成时 七、 一般将来时 八、 过去将来时 时态的基本句型 I smoke. I smiked. I am smoking. I was smoking (when my father came in). I have smoken. I had smoken. I am going to smoke. I will go to smoke. She said she would go to smoke. She said she was going to smoke. 一、 一般现在时 a.概念：经常、反复发生的动作或行为及现在的某种状况。 b.时间状语： always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays。 c、动词的单三形式变化规则。 1：一般情况加s. 2： 以s, x. ch, sh , 及o 结尾加es. 3：以辅音字母加y结尾的动词先变y为i再加es. d.考点是第三人称的变化。 但有些同学们对于哪些主语是第三人称单数还不十分清楚，现归纳总结如下： 一、人称代词he, she, it是第三人称单数。 He likes watching TV. She has lunch at twelve. It looks like a cat. 二、单个人名、地名或称呼作主语；是第三人称单数。 ①Han Mei looks like her mother. ②Beijing is in China. ③Uncle Wang often makes cakes. 三、单数可数名词或this / that / the+单数可数名词作主语时，是第三人称单数。 ①A horse is a useful animal. ②This book is yours. ③That car is red. ④The cat is Lucys. 四、不定代词someone, somebody, nobody, everything, something等及指示代词this, that作主语时，是第三人称 ： ①Everyone is here. ②There is something wrong with the watch. ③This is a pen. ④That is an eraser. 五、不可数名词作主语时为第三人称单数。 ①The milk is in the glass. ②The bread is very small. 六、当数字或字母作主语时，看作第三人称单数。 ①6 is a lucky number. ②I is a letter. 写出下列动词的第三人称单数： drink________go_______stay________ make________look_________have______ pass_______carry____come________ watch______plant_______fly________ study_______brush________do_________ teach_______ 一般现在时有两种结构 1.主语+be动词+宾语 2.主语+动词+宾语 I am a doctor I like apples You are a doctor You like apples Are you a doctor ? Do you like apples? Why are you a doctor ? Why do you like apples? Who is a doctor ? Who likes apples? Who are doctors? Who like apples? Are you a doctor ? Do you like apples? --Yes,I am/I am not Yes,I do /No ,I dont 1 I________（ be ）a student . 2 You________( be ) a