内容正文:
动词的时态
一般现在时
结构:行为动词原形或三单形式(do/does);be动词用is/ am/ are
用法:(1) 表示经常性或习惯性的动作 I often go to school by bike.
(2) 表示主语的性格,能力和特征 She speaks English well.
(3) 表示现在的状态(个人信息)I live in Yangjiang.
(4) 表示客观事实、真理和自然规律 The earth goes around the sun.
(5) 时间状语从句和条件状语从句中,常用一般现在时表示将来的动作。
If it rains tomorrow, we won't go to the park.
(6) 引用报刊、书籍、信件等内容。The notice says “No parking”.
时间状语:always,usually, often, sometimes,hardly ever, never, seldom; every day/week/month; now; once, twice, three times a week.
动词第三人称单数变化规则
(1)一般情况下,直接加-s。 play----plays
(2)以-s,-x, -ch, -sh, -o结尾的加-es。 watch---watches
(3)以辅音字母加+ y结尾的改y为i,再加-es。 carry----carries
(4)不规则变化。have----has
现在进行时:
结构:be(am/ is/ are) + doing
用法:(1) 表示此时此刻正在进行的动作
---What are you doing? --- I'm reading English.
(2) 表示现阶段正在进行的动作或存在的状态 They are studying hard this term.
时间状语:now, at the moment, look, listen, these days, at present,from two to five 等或含有when, while 的时间状语从句
动词现在分词变化规则
(1)一般情况下,直接加-ing。 play----playing
(2)以不发音-e结尾的动词,去掉e,再加-ing。 dance----dancing
(3)以ie结尾的动词,改ie为y,再加-ing。 die----dying
(4)以重读闭音节结尾,末尾只有一个辅音字母的动词,先双写该辅音字母,再加-ing。 shop----shopping
一般过去时:
结构:行为动词的过去式did(-ed型);be动词用was/ were
用法:(1) 表示过去某个特定时间发生的动作或存在的状态。
I didn't go to school yesterday because I was ill
(2) 表示过去习惯性或经常发生的动作。
When I was in the countryside, I often swam in the river.
时间状语:yesterday; last night/week/month/ year, in 2018,just now,three days ago 等过去的时间
动词过去式/过去分词变化规则
(1)一般情况下,直接加-ed。 play----played
(2)以-e结尾的动词,直接加-d。 dance---danced
(3)以辅音字母加+ y结尾的改y为i,再加-ed。 carry----carried
(4)以重读闭音节结尾,末尾只有一个辅音字母的动词,先双写该辅音字母,再加-ed。 stop----stopped
一般将来时
结构:(1) be going to do; (2)will/shall(第一人称) do;
用法:(1) 表示事先经过考虑、打算、计划要做的事情。(be going to)
We're going to meet outside the school gate.
(2) 表示根据已有迹象表明必将发生的事。(be going to) Look! It's going to rain.
(3) 表示即将要发生的动作或存在的状态。 We will have a meeting tomorrow.
(4) 在含有时间或条件状语从句的复合句,主句用一般将来时。
We will go to the park if it doesn't rain tomorrow.
时间状语:tomorrow, soon, next week/month/year, in a few days, in the future等