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一、        陈述句和祈使句

（1）   陈述句：表示说话人所说的话或所陈述的观点、看法是事实。分为肯定陈述句和否定陈述句。

1、肯定句：是指用肯定的语气来陈述的句子。例如：

Lingling likes hamburgers. 

There are lots of buses and cars now. 

I will take my ball and my kite. 

I watched TV yesterday evening. 

2、否定句：含有否定词（not）或表示否定意义词的句子。例如：

Lingling does not (doesn't) like hamburgers. 

There are not (aren't) lots of buses and cars now. 

I will not (won’t) take my ball and my kite. 

I did not (didn't) watch TV yesterday evening. 

☆注意☆

否定句主要是在肯定句的基础上加上了否定词 "not".

有动词be的句子则"not"加在be后面,可缩写成"isn't,aren't",但am not 一般都分开写.

没有动词be的句子则要先在主要动词的前面加上一个助动词(do,does,did),然后在它后面加上"not",你也可以把它们缩写在一起如(don't , doesn't , didn't ).其中"does"只用于一般现在时主语是第三人称单数的情况,而"did"只用于一般过去时,不论主语是什么人称和数,都用"did" . 

（2）   祈使句：一般用来表示命令、请求、指示、要求或劝告等语气。

Be quiet.

Please stand in line.

Don’t talk in the library.

句型演练：

1、     me more about the Great Wall.(tell)

2、We can       (write) lots of emails.

3、Daming is back    China     his family.

4、She         see and she couldn’t hear.

5、The teacher      letters     Helen’s hand.(draw)

6、Life     very different in China many years ago.(be)

7、He       hamburgers very much.(like)

8、Please        (bring)back the book      two weeks’ time.

9、It’s easy to make mistakes        English.

10、      (look) what ’s  in my bag.

11、Helen Keller       (be) a model        blind people.

12、Yang Liwei is         Liaoning.

13、I wake       from my dream.

14、Some friends               (进来).

二、        疑问句

（1）   一般疑问句：是指询问事实的句子，句子开头一般由be动词、can、do、does、did、would来进行引导，此类句子必须用"yes",或"no"来回答.

Is this your grandpa?

Can you help me?

Do you like the present?

Does Lingling like hamburgers?

Did he learn English?

☆    注意☆ 

一般疑问句是在肯定句的基础上, 

①把动词be调到首位,其他照写,末尾标点符号变成问号即可. 

②没有动词be的句子则要在句首加上一个助动词(do,does,did)再把紧跟在后面的动词变回原形,末尾标点符号变成问号即可. 

这三个助动词也要根据人称和时态来选择,其中"does"只用于一般现在时主语是第三人称单数的情况,而"did"只用于一般过去时,不论主语是什么人称和数,都用"did" .一般疑问句有个重要的原则就是问和答要一致,即问句里的第一个单词(助动词)和简略答句里的这个词是一致的.

（2）   特殊疑问句：以特殊疑问词(what什么 , where 什么地方, who谁 ,which 哪一个, when 什么时候, whose谁的 , why为什么 , how怎样)开头引导的句子.此类句子应该问什么就答什么,不能用"yes ,no"来回答.

☆    其中how又可以和其他一些形容词连用组成特殊疑问词组用来提问,如: how many(多少(数量)), how much(多少(钱)), how tall(多高), how long(多长), how big(多大), how heavy(多重) 

☆    What可以和其他词连用组成特殊疑问词组用来提问，如：what time什么时间what color什么颜色what day星期几

What do you want to eat?

Where are the books about computers?

Who is going to go to the airport?

Which do you like best?

When are we going to eat？

Whose bag is this?

Why is she wearing a dress?

How many apples do you want?

How much is it？

How tall is he?

How long is the Great Wall?

What time is it?

What color is that bag?

What day is it today?

句型演练：

1、      you got any stamps from China?

2、       do you do on Thanksgiving Day?

3、--       can be your pen friend?

   --Jim can.

4、--      is your mum?

   --She is at the supermarket.

5、--      I have this cap?

   --Sorry , you can’t.

6、--       are you wearing a raincoat?

   --Because it’s going to rain.

7、--What      you have for dinner?

   --I had rice and meat.

8、--       you go with your mother?

   --Yes, I did.

9、--       did you go to Xinjiang?

   --We went there in July.

10、       you ready for your trip tomorrow?(be)

11、--        Can I do for you?

--I want a hot dog.

12、--         can help me?

--Sorry,I can’t.

13、--        are you going to study?

--I’m going to study Physics.

14、--        am I going to practice my English now?

--We can write lots of letters.

15、--        are you laughing?

--I am happy.

三、感叹句

由what和how引导，表示赞美、惊叹、喜悦等感情。

句型演练

      a lot of good wishes！

        a mess！

        well she speaks English！