动词的分类

动词的分类

动词加-s 或-es （动词第三人称单数）

当主语是第三人称单数时，谓语动词需加-s 或-es

1． 一般在词尾加 –s

例：work—works leave --- leaves swim --- swims

2． 以字母s，x，ch，sh 或o结尾的词加-es

例：pass--- passes fix ---fixes teach ---teaches do--- does

3． 以辅音字母加y结尾的词，先变y为i再加-es

例：study --- studies carry --- carries fly ---flies cry --- cries

一般现在时的用法

1． 表示经常或习惯性的动作。常与often（经常）, always（总是）, sometimes（有时）, every day（每天）, on Sundays/Mondays 等表示频度的时间状语连用。

一般现在时的时间状语有：today, often, sometimes, always, usually, everyday ( week, month, year,…) , this year, once a week ( month, year,…) 一周（月，年）一次

例句：I get up at 6 o’clock every day.

He often goes to school by bike.

2． 表示客观事实，普遍真理。

例句：Two and two is four.二加二等于四。

例句：

1，我将要和朋友一起去游泳。

I am going to go swimmingwith my friends.

--(否定) I am not going to goswimming with my friends.

I will go swimming with myfriends.

--(否定) I will not go swimmingwith my friends.

2, 你将要和朋友一起去游泳吗？

Are you going to goswimming with your friends ? --> Yes, I am ;No , I’m not.Will you go swimming withyour friends ? --> Yes, I will./ No ,I won’t

注意：be going to 和 will 后面都是加动词原型。

例如：

I am going to swimmingtomorrow.( x )

I will going swimmingtomorrow .( x )

I am going to go swimmingtomorrow.(√)

I will go swimmingtomorrow.(√)

am,is,are+动词现在分词

动词现在分词详解动词的 ing形式的构成规则：

①一般的直接在后面加上 ing ,如 doing , going , working , singing , eating

②以 e结尾的动词，要先去 e再加 ing，如 having , writing

③双写最后一个字母的(此类动词极少)有：running , swimming , sitting , getting