初一一般现在时讲解.ppt

* * 一般现在时态 The Simple Present Tense Ⅰ.陈述句（肯定句） Ⅱ.否定句 Ⅲ.一般疑问句 Ⅳ.特殊疑问句 一、概念：一般现在时态表示的是经常反复发生的动作或存在的状态。 二、一般现在时应用的情况： 1 . He’s twelve. She’s at work. 表示现在的状态 2. I get up at 6:30 every day. He reads English every morning. 表经常或习惯性的动作常常和频率副词出现always/often/usually/sometimes/never 3. She likes noodles. They speak French. 表主语具备的性格和能力等 4.Two plus（加） four is six. The moon goes around the earth. 普遍真理和自然规律 三、一般现在时句子结构： Be 的用法： I用 am， you用are， is用于他(he)、她(she) 、它(it)，复数(we,you,they)全部都用are.可单不可都用is，可复要用are。 谓语动词是be动词时 1、陈述句 当谓语动词是实义动词时 一二人称和复数时，动词用原形，第三人称单数和不可数时，动词要用第三人称单数。 EX2 1.Tom often___( get ) up at six in the morning 2. The earth __( go) around the sun . 3.Mary’s parent __(live ) in Beijing . 4. She ___ (draw) very well. gets goes lives draws 肯定句 句子结构： He is a worker. You are thirteen. They are in the classroom. 主语+be+表语(n., adj.等) I stay at home on Saturdays. They have sports every day 主语+实义动词（原形/三单）+其他 2、否定句 I am a teacher. You are a worker She is a doctor We are friends. 否定句 I’m not a teacher You aren’t a worker She isn’t a doctor. We aren’t friends. is not=isn’t are not=aren’t Be 动词的否定式: be + not I like English. She likes it very much. We go to work by bike. 否定句 I don’t like English. She doesn’t like it very much. We don’t go to work by bike. Do not+ v.原形=don’t+ v.原形 Does not+ v.原形=doesn’t+ v.原形 当主语是单数第三人称时，它与助动词DOES有关，但是动词谓语一定要恢复为原形。当主语是其他人称时，它与助动词DO有关。 He is not a worker. You aren’t thirteen. They aren’t in the classroom. 主语+be+ not+表语 I don’t stay at home on Saturdays. Lucy doesn’t have sports every day. 主语+don’t/doesn’t+动词原形+其他 否定句 句子结构： Ex1. 将下列各句从肯定式改为否定式 I talk to Peter because I like him. Kate comes from America. Kate works with Peter I am Chinese, and I am a student. They know each other. I don’t talk to Peter because I don’t like him. Kate doesn’t come from America.Kate doesn’t work with Peter. I am not Chinese, and I am not a student They don’t know each other. 3.一般疑问句 概念：用 y