小学英语中的时态

一般现在时
1、定义：表示经常发生或习惯性的动作、状态。句中通常有usually，often，everyday，sometimes，always，at weekends，on Sundays等表示经常性时间的短语。
2、构成：
1）当谓语是be动词时，一般现在时的构成：主语＋be动词＋其他……
如：I am a student.  He is Jim’sfather.  They are from Japan.
2）当谓语是行为动词时，一般现在时的构成：
①主语（非第三人称单数）＋动词原形＋其他……
如：I often watch TV at theweekends.              
Mr Green and Mrs Green like collecting stamps.
②主语（第三人称单数）＋动词的第三人称单数形式＋其他……
如：Jim usually visits his grandparents onSundays.
    She sometimes goes to the park with hermother.  
3、动词三单形式的变化规则：

①    一般情况下，直接加s  如：read-reads，swim-swims

②    以s，x，sh，ch，o结尾，加es 如：wash-washes，watch-watches，do-does

③    以辅音字母＋y结尾，变y为i，再加es  如：study-studies，fly-flies

④    不规则变化如：have-has

4、一般现在时的句型转换：

肯定句	否定句	一般疑问句及回答
They watch  TV   every day.	They don’t watch  TV   every day.	—Do they watch  TV every day?   —Yes, they do. / No, they don’t.
She watches  TV   every day.	She doesn’t   watch   TV every day.	— Does she watch  TV every day?   —Yes, she does. / No, she doesn’t.

一般将来时
1、定义：表示将要发生的动作或存在的状态，以及打算、计划或准备某事。句   

中一般含有表示将来的时间状语，如：tomorrowmorning，next week，soon 、this afternoon等表示将来的时间状语。

2、构成：
① be gong to +动词原形
   如：I am going to see a Beijing operatomorrow.
       We are going to meet at bus stopat half past ten.
       Dad and I are going to see a Beijing opera thisafternoon.
② will /shall+动词原形
   如：They will go swimming thisafternoon.
3、be going to 和will 区别：
①be going to表示经过事先安排、打算或决定要做的事情，基本上一定会发     

生；will则表示有可能去做，但不一定发生，也常表示说话人的临时决定。
如：I am going to take part in a party this evening.

② be going to表示近期或眼下就要发生的事情；will表示的将来时间则较远一些。如：He is going to write a letter tomorrow.\I will meet her one day.

③ be going to还可以用来表示有迹象表明某件事将要发生，常用于天气等自然现象。如：Look!It’s going to rain.

4、一般将来时句型转换：

肯定句	否定句	一般疑问句及回答
She  is going to have a picnic tomorrow.	She  isn’t going to have a picnic tomorrow.	—Is  she going to have a picnic tomorrow?   —Yes, she is. / No, she isn’t.
They  will go swimming this afternoon.	They  will not(won’t) go swimming this afternoon.	—Will  they go swimming this afternoon?   —Yes, they will. / No, they won’t.

现在进行时
1、定义：表示现在或现阶段正在进行或发生的动作。

句中常有now，look，listen等词。
如：I am washing clothes now.
    Look! Liu Tao is climbing the tree.
    Listen! Jane is singing in the music room.
2、构成：be动词（am/is/are）+ 动词现在分词（V-ing）
         (两者缺一不可构成现在进行时。)

3、动词现在分词构成规则：

①   一般是在动词原形后加ing

如：read-reading，drink-drinking，eat-eating，look-looking

②   以不发音的e结尾的动词，去掉e，再加ing

如：write-writing，make-making，ride-riding，take-taking

③   以重读闭音节结尾，如末尾只有一个辅音字母，要双写这个字母，再加ing

如：sit-sitting，swim-swimming，put-putting，run-running，stop-stopping，get-getting，begin-beginning，jog-jogging，forget-forgetting

④ 以ie结尾的，改ie为y，再加ing. 如：lie—lying,die---dying

4、动名词其实就是动词的现在分词，它既有名词性质（可作主语），又有动词性质（可带宾语）。
如：Asking the way. // My hobby is collecting stamps.
    He is good at skating.

5、现在进行时的句型转换：

肯定句	否定句	一般疑问句及回答
He is running  now.	He isn’t running  now.	—Is he running  now?   —Yes, he is. / No, he isn’t.
They are making   a puppet.	They aren’t  making   a puppet.	— Are they making  a puppet?    —Yes, they are. / No, they aren’t.

小学英语中的时态

一般现在时
1、定义：表示经常发生或习惯性的动作、状态。句中通常有usually，often，everyday，sometimes，always，at weekends，on Sundays等表示经常性时间的短语。
2、构成：
1）当谓语是be动词时，一般现在时的构成：主语＋be动词＋其他……
如：I am a student.  He is Jim’sfather.  They are from Japan.
2）当谓语是行为动词时，一般现在时的构成：
①主语（非第三人称单数）＋动词原形＋其他……
如：I often watch TV at theweekends.              
Mr Green and Mrs Green like collecting stamps.
②主语（第三人称单数）＋动词的第三人称单数形式＋其他……
如：Jim usually visits his grandparents onSundays.
    She sometimes goes to the park with hermother.  
3、动词三单形式的变化规则：

①    一般情况下，直接加s  如：read-reads，swim-swims

②    以s，x，sh，ch，o结尾，加es 如：wash-washes，watch-watches，do-does

③    以辅音字母＋y结尾，变y为i，再加es  如：study-studies，fly-flies

④    不规则变化如：have-has

4、一般现在时的句型转换：

肯定句	否定句	一般疑问句及回答
They watch  TV   every day.	They don’t watch  TV   every day.	—Do they watch  TV every day?   —Yes, they do. / No, they don’t.
She watches  TV   every day.	She doesn’t   watch   TV every day.	— Does she watch  TV every day?   —Yes, she does. / No, she doesn’t.

一般将来时
1、定义：表示将要发生的动作或存在的状态，以及打算、计划或准备某事。句   

中一般含有表示将来的时间状语，如：tomorrowmorning，next week，soon 、this afternoon等表示将来的时间状语。

2、构成：
① be gong to +动词原形
   如：I am going to see a Beijing operatomorrow.
       We are going to meet at bus stopat half past ten.
       Dad and I are going to see a Beijing opera thisafternoon.
② will /shall+动词原形
   如：They will go swimming thisafternoon.
3、be going to 和will 区别：
①be going to表示经过事先安排、打算或决定要做的事情，基本上一定会发     

生；will则表示有可能去做，但不一定发生，也常表示说话人的临时决定。
如：I am going to take part in a party this evening.

② be going to表示近期或眼下就要发生的事情；will表示的将来时间则较远一些。如：He is going to write a letter tomorrow.\I will meet her one day.

③ be going to还可以用来表示有迹象表明某件事将要发生，常用于天气等自然现象。如：Look!It’s going to rain.

4、一般将来时句型转换：

肯定句	否定句	一般疑问句及回答
She  is going to have a picnic tomorrow.	She  isn’t going to have a picnic tomorrow.	—Is  she going to have a picnic tomorrow?   —Yes, she is. / No, she isn’t.
They  will go swimming this afternoon.	They  will not(won’t) go swimming this afternoon.	—Will  they go swimming this afternoon?   —Yes, they will. / No, they won’t.

现在进行时
1、定义：表示现在或现阶段正在进行或发生的动作。

句中常有now，look，listen等词。
如：I am washing clothes now.
    Look! Liu Tao is climbing the tree.
    Listen! Jane is singing in the music room.
2、构成：be动词（am/is/are）+ 动词现在分词（V-ing）
         (两者缺一不可构成现在进行时。)

3、动词现在分词构成规则：

①   一般是在动词原形后加ing

如：read-reading，drink-drinking，eat-eating，look-looking

②   以不发音的e结尾的动词，去掉e，再加ing

如：write-writing，make-making，ride-riding，take-taking

③   以重读闭音节结尾，如末尾只有一个辅音字母，要双写这个字母，再加ing

如：sit-sitting，swim-swimming，put-putting，run-running，stop-stopping，get-getting，begin-beginning，jog-jogging，forget-forgetting

④ 以ie结尾的，改ie为y，再加ing. 如：lie—lying,die---dying

4、动名词其实就是动词的现在分词，它既有名词性质（可作主语），又有动词性质（可带宾语）。
如：Asking the way. // My hobby is collecting stamps.
    He is good at skating.

5、现在进行时的句型转换：

肯定句	否定句	一般疑问句及回答
He is running  now.	He isn’t running  now.	—Is he running  now?   —Yes, he is. / No, he isn’t.
They are making   a puppet.	They aren’t  making   a puppet.	— Are they making  a puppet?    —Yes, they are. / No, they aren’t.