成考英语基本文法复习资料第六章(2)

来源：: 江西成考网
发布日期: 2007年09月14日

摘要：　　第六章　否定句子（Negative Sentences）　　6§1 否定句的基本规则　　在任何语言，我们都有必要造出“否定”的句子，在中文，写出否定句子并非难事，在英文，无论任何否定句子，都必须遵行一些规定，以下是否定句子的例子　　肯定句子　　否定句子　　I like music. 　　I don't like music. 　　He loves swimming. 　　He does not love swimming. 　　They have come to work. 　　Th

cher.

　　Mary was not very happy when she was young.

　　They are not strong boys.

　　Peter is not coming.

　　John is not going to work.

　　2.助动词后面可以直接加not.例如：

　　He has not written any letter.

　　They will not come.

　　He cannot swim.

　　They should not cry very often.

　　Tom had not eaten any thing before you came.

　　He may never eat cakes in the future.

　　John has not lived here.

　　3.一般句子的动词必须加入do或他的变形。

　　He does not smoke.

　　He did not go.

　　I do not love sports.

　　You do not like to eat fish.

　　They do not swim very well.

　　We did not see that movie.

　　在英文中，我们可以用have to来代替must，以下是have to的例子：

　　He has to go to Chicago tomorrow.（他明天应该去芝加哥）

　　They had to buy three tickets to go to the concert.（他们必须买三张票去听音乐会）

　　I have to work very hard.（我必须努力工作）

　　含有have to的句子，如要改成否定句子，必须在have to前面加do或它的变形，请看以下的例子：

　　肯定句子

　　否定句子

　　He has to eat a lot of food.

　　He does not have to eat a lot of food.

　　He had to leave

　　He did not have to leave.

　　I have to write that letter.

　　I do not have to write that letter.