很多小朋友都有这样的苦恼：英语学习效率不高、英语成绩提不上去、老是被父母和老师责备，威廉希尔app 准备了英语语法之句法专项解析，希望能够帮助大家更高效地学习!

1、陈述句

说明事实或陈述说话人观点的句子。基本结构：主语+谓语+其他

1)肯定陈述句 We all like pandas very much.

2)否定陈述句 He doesn’t do housework at weekends

3)肯定陈述句改否定陈述句

①一般是在be动词或情态动词后加not。

Mary was at school yesterday. —> Mary was not at school yesterday.

I can make a model plane. —>I can not make a model plane.

②不含be动词或情态动词的，行为动词前要用助动词的否定式(don’t，doesn’t，didn’t)，后面跟动词的原形。

He likes drawing pictures.—>He doesn’t like drawing pictures.

I went to the park yesterday. —>I didn’t go to the park yesterday.

4)陈述句改一般疑问句

①有be动词或情态动词的，把be动词或情态动词提前。

Mary was at school yesterday. —> Was Mary at school yesterday?

I can make a model plane. —> Can you make a model plane?

②不含be动词或情态动词的句子，借助助动词开头，动词还原成原形。

He likes drawing pictures.—>Does he like drawing pictures.

I went to the park yesterday. —>Did you go to the park yesterday?

2、疑问句

用来提出问题，询问情况的句子，末尾用问号。

1)一般疑问句：一般疑问句常用来询问一件事是否属实，通常以be动词，助动词或情态动词开头，用yes或no来回答，因此又叫是非疑问句，通常读升调。

—Is Mr Green from the UK? —Yes，he is. / No，he isn’t.

—Do you have any hobbies? —Yes，I do. / No，I don’t.

—Can you play the guitar? —Yes，I can. / No，I can’t.

2)特殊疑问句：以特殊疑问词引导，要求回答具体问题，不能用yes或no来回答。—How do you go to work every day? —I go to work by car.

3)选择疑问句：提供两种或两种以上情况，让对方选择，往往用or连接。

—Would you like some tea or coffee? —Some coffee, please.

4)反意疑问句：反意疑问句是由陈述句和附在其后的附加疑问句组成。

—It’s a fine day, isn’t it? — Yes ,it is.