/Is she…?/Yes,she is./No,she is not.

/Is it…?/Yes,it is./No,it is not.

read/Do I/we/they read…?/Yes,you/we/they do./No,you/we/they do not.

/Does he/she/it read…?/Yes,he/she/it does./No,he/she/it does not.

连系动词be的各种形式常与代词或not缩写成一个词。助动词do，does一般只有与not缩写。连系动词be缩写形式如下

I am I’m I am not I’m not

You are You’re You are not You’re not/You aren’t

He is He’s He is not He’s not/He isn’t

She is She’s She is not She’s not/She isn’t

It is It’s It is not It’s not/It isn’t

We are We’re We are not We’re not/We aren’t

They are They’re They are not They’re not/They aren’t

动词do not的缩写形式为don’t，does not的缩写形式为doesn’t。

二、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

三、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）,everyday（每天）,onSundays/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,every day(week,month,year,…),this year,oncea week(month,year,…)一周（月，年）一次

例句：I get up at 6 o’clock every day.

He often goes toschool by bike.

2．表示客观事实，普遍真理。

例句：Two and two are four.二加二等于四。

The earthmoves around the sun.地球绕着太阳转。

第五章现在进行时态

一、现在进行时的定义

现在进行时是表示在现在某一时刻或某段时间正在进行的动作的时态。

二、现在进行时的构成

现在进行时由“系动词（am，is，are）+现在分词（动词加-ing形式）”

构成。现在以动词work为例，对现在进行时的肯定句、否定句、疑问句及简略答语列表说明：

肯定句/否定句

I am working./I am not working.

You are working./You are not working.

He/She/It is working./He/She/It is not working.

We/You/They are working./We/You/They are not working.