2019中考英语句型转换错误分析 肯定句变否定句

析：英语中think, believe, expect, suppose等表示信念和揣测的动词，后接that从句时，习惯上将从句中的否定形式转移到主句上，即否定主句谓语，不否定从句谓语。

2. He can sing this song and that one.

误：He cannot sing this song and that one.

正;He cannot sing this song or that one.

析：肯定句中的连词and在否定句中一般要改为or。

3. Tom went to school too.

误：Tom didn t go to school too.

正：Tom didn t go to school either.

析：too和also用于肯定句中时，否定句中用either替换。

4. He has had supper already.

误：He hasn t had supper already.

正：He hasn t had supper yet.

析：随着对谓语动词的否定，某些副词也要作相应的变动。

5. He had a good rest just now.

误：He hadn t a good rest just now.

正：He didn t have a good rest just now.

析：have在表示开会、吃饭、休息、进行体育锻炼等词组中是行为动词，否定句用助动词来完成。

6. Let s do it.

误：Let s don t do it.

正：Don t let s do it.或Let s not do it.

析：let后接的是不带to的不定式，变为否定式，直接在句首前加Don t或在不定式前加not。

7. He always gets there on time.

误：He doesn t always get there on time.

正：He never gets there on time.

析：He doesn t always get there on time意为 他并非老是准时到那儿 ，是部分否定，习惯上把句中的副词改为相应的表示否定的副词即可。如：

It often rains here. It seldom rains here.

8. Be here early tomorrow.

误：Be not here early tomorrow.

正：Don t be here early tomorrow.

析：祈使句的否定，一般在谓语动词前加do not的缩写don t。

9. You had better come.

误：You didn t have better come.

正：You had better not come.

析：had better相当于一情态动词，不可分割，因此not应放在其后。would rather也是如此。

10. Both Tom and Xiao Ping went to school.

误：Both Tom and Xiao Ping didn t go to school.

正：Neither Tom nor Xiao Ping went to school.