英语八大时态 课件 2023-2024学年高一英语初高衔接课程

英语八大时态 一般现在时 概念：表示经常发生的动作或经常存在的状态。 信号词：always,usually,sometimes,every day,often等 结构： 肯定句：主语+动词原形/动词三单+其他 主语+be动词+其他 否定句：主语+(助动词）don't/doesn't+动词原形+其他 一般疑问句式：Do/Does+主语+动词原形+其他 简略回答：(肯)Yes，主语+do/does (否)No，主语+do/does not 缩写形式：don't=do not doesn't =does not 例句：He often goes swimming in summer. I go to school every day.(表经常） He goes to bed at ten o’clock every evening. 动词三单变化规则 一般情况：在词尾加-s write→writes like→likes get—gets live→lives climb-climbs ②以-s，-x，-ch，-sh，-o结尾的单词：在词尾加-es英语 pass--passes fix→fixes teach→teaches wash→washes go→goes do→does ③以辅音字母+y结尾的单词：变y为i再加-es carry→carries study—studies worry—worries fly→flies 以元音字母 +y结尾：直接加-s play-plays enjoy-enjoys buy-buys 一般过去时 概念：1)表示过去某个时间发生的动作或存在的状态，常和表 示过去的时间状语连用。 2)也可表示过去经常或反复发生的动作。 信号词：yesterday,last week, in 1998，two days ago,in the past等。 结构： 肯定句式：主语+动词过去式+其他 主语+was/were+其他 否定句式：主语+(助动词)didn't+动词原形+其他 主语+was/were not+其他 一般疑问句式：Did+主语+动词原形+其他 was/were+主语+其他 简略回答：(肯)Yes，主语+did (否)No，主语+did not 例句：I went to a movie yesterday. Did you see him today? I was a teacher five years ago. 动词过去式或过去分词变化规则 (1)一般情况：在词尾加-ed talk→talked look-looked stay-stayed play- played show-showed (2)以不发音e结尾的单词：在词尾加-d like-liked arrive-arrived hope-hoped smile-smiled place-placed (3)以辅元辅结尾的重读闭音节，且末尾只有一个辅音字母的单词，双写尾字母再加- ed stop-stopped plan-planned (4)以辅音字母+y结尾的单词：变y为i加-ed study-studied carry-carried try-tried (5)不规则变化 写出下面动词的过去式 look_____ dance_____ show_____ listen____ help_____ want_____ watch_____ invent_____ rain_____ like_____ hope_____ walk_____ cry_____ shout_____ worry_____ go_____ fly_____ be______ get_____ choose_____ stop_____ chat______ shop_____ fit______ 三、用括号内所给动词的适当形式填空。 1.I______(buy) a new dictionary the day before yesterday. 2. — What day______(be) it yest