初中英语时态总结.doc

外语下载中心 http://down. 外语下载中心 http://down. 初中阶段, 要求学生掌握动词 6种时态的基本结构(一般现在时,一般过去时,现在进行时, 过去进行时,现在完成时,和一般将来时态)及它们的主要用法和区别。了解过去将来、过去完成时态的基本用法,解题时注意找出关键词,正确判断出时态,按时态结构正确变化动词。注意句子时态的一致性,注意对特殊时态的处理。 1 、一般现在时: ?用法: 1)现阶段经常性,习惯性的动作。例如: I get up at six every morning. He plays tennis once a week. 2)现在的状态。例如: My mother isa teacher. She teaches English ina school. 3)客观真理。例如: The earth goes around the sun. 4)常用于一般现在时态的时间状语: often , usually , sometimes , always , every day , never , in the morning 等连用时。?构成: 主语是 I, we, you, they 和名词复数时作谓语的行为动词用原形。主语是 he, she , it 和名词单数时, 动词第三人称单数的变法如下: 一般情况+s 以 s,x, ch, sh,o结尾+ es 以辅音+ y结尾变 y为 i+ es 主语为第三人称和名词单数时: 肯定式:S+V/ 动词的第三人称单数否定式:S+ don't/doesn't +V+ 其他疑问式:Do/Does+S+V+ 其他简略回答:(肯)Yes,S+do/does (否)No,S+do/does not 注意: have 的第三人称单数为 has 主语肯定式否定式疑问式第一、二人称和第三人称复数以及名词复数 I am a student. We/You/ They are students. He/ She isa student. I/ We/ You/ They/ like I am not a student. We/You/ They are not students. He/ She isnot a student. I/ We/ You/ They/ don ’t like music. Are you a student. Are you/ they students? Is he/ she a student? Do you/ they like music? Do many people like 外语下载中心 http://down. 外语下载中心 http://down. music. Many people like music. Many people don ’t like music. music? ?当主语是第一、二人称和第三人称复数以及名词复数时: 肯定式:S+ be+ ··· 否定式: S+ be +not + ··· 疑问式: Am /Is /Are + S+ ···? 简略回答:(肯) Yes,S + be. (否) No,S + be. 练习题: 1. --- May I help you, sir? --- Yes, I bought the TV