自制动词的时态解决方案.ppt

英语常见时态 语态;教学目标;动词时态语态一览表(以do为例）;最常用的几种时态与时间状语的搭配;一、一般现在时： 概念：经常、反复发生的动作或行为及现在的某种状况。 时间状语：always, usually, often, sometimes, every week (day, year…), once a week, on Sundays, etc. 基本结构：①be动词；②行为动词 否定形式：①am/is/are+not;②此时态的谓语动词若为行为动词，则在其前加dont,如主语为第三人称单数，则用doesnt，同时还原行为动词。 一般疑问句：①把be动词放于句首；②用助动词do提问，如主语为第三人称单数，则用does，同时，还原行为动词。;一般现在时的用法 a. 表示经常发生的动作或现阶段的习惯性行为，常与时间状语often， usually，always，every day，sometimes， seldom，never等连用。 I never do my homework in the evening. Sometimes we play football on the playground. He seldom listens to music. b. 表示现在的事实或状态。 China is a developing country. I like English very much.;c. 表示格言，科学事实和客观真理。 Pride goes before a fall.　骄者必败。 All things are difficult before they are easy. Shanghai lies in the east of China. The teacher told us yesterday that December 25 is Christmas Day. d.表示按照时刻表或已经计划安排好的将来行为。（只限于是go, come, leave, arrive, begin, start, take off, stop, be等表示开始或移动意义的词。） The train leaves at 10 p.m. The plane takes off in 20 minutes. ; 在以when, till/ until, as soon as, by the time, after, before等引导的时间状语从句，在以if, unless, once等引导的条件状语从句和以no matter+疑问词, 疑问词+ever, even if 等词引导的让步状语从句中，如果主句中的动词用一般将来时，从句中的动词通常用一般现在时或现在完成时代替一般将来时。 ;二. 一般过去时 概念：过去某个时间里发生的动作或状态；过去习惯性、经常性的动作、行为。 时间状语：ago, yesterday, the day before yesterday, last week(year, night, month…), in 1989, just now, at the age of 5, one day, long long ago, once upon a time, etc. 基本结构：①be动词；②行为动词 否定形式：①was/were+not;②在行为动词前加didnt，同时还原行为动词。 一般疑问句：①was或were放于句首；②用助动词do的过去式did 提问，同时还原行为动词。 ;3．用法 (1) 表示发生在过去的动作或存在的状态。如：He went shopping with his friends last week. They arrived ten minutes ago. He became a hotel manager ten years ago. Did you go to the concert last night? (2) 表示在过去经常发生的动作或习惯动作。如：He visited his grandparents once a month last year. She usually went to work by car last year. When I was at school, I always went to school by bus. ;谓语动词使用过去式形式，加ed，分为规则和不规则变化。表示过去经常发生的动作，也可用“used to do ”和“would +动词原形”。;构成规则;三. 一般将来时的构成: 标志词：tomorrow,the day after tomorrow,in thr