英语五年级【知识精讲】10.句型(2)否定句

【知识精讲】否定句 五年级 英语 Content 什么是否定句？ 如何变否定句？ 否定句牛刀小试 表示否定的意思，句中有否定词。 I am not a student. He does not go to school. He can’t swim. 否定句 1．简单句中含有系动词be、情态动词和助动词时，变否定句时需在系动词be、情态动词和助动词后加not I am a teacher． → I am not a teacher. He can help me． → He can’t help me. She is reading a book．→ She isn’t reading a book． 如何变 否定句 如何变 否定句 2．简单句中谓语动词为实意动词时，要根据时态选用do的相应形式，且实意动词要变回原形 I like swimming． → I don’t like swimming． He did his work yesterday． → He didn’t do his work yesterday． 如何变 否定句 3．祈使句变否定句时，一般在句首加Don’t，Let’s开头的祈使句也可以在 Let’s后加not Put them over there．→ Don’t put them over there． Let us go home． → Let us not go home． 如何变 否定句 4. no：一般用于名词之前，表达“没有……”之意 There were cars and buses in my time. → There were no cars or buses in my time. 按要求完成句子。 Mike made a model of a Chinese spaceship. (改为否定句) Mike  ______  ______  a model of a Chinese spaceship. 试试吧 按要求完成句子。 Mike made a model of a Chinese spaceship. (改为否定句) Mike  ______  ______  a model of a Chinese spaceship. 答案：d