【初中英语动词不定式ppt】 初中英语动词不定式PPT
一、什么是动词不定式?
在英语中,动词不定式指的是动词的基本形式,前面通常加上 “to”。
例如:
- to go
- to eat
- to study
动词不定式在句子中可以充当多种成分,如主语、宾语、表语、定语、状语等。
二、动词不定式的结构
动词不定式的基本结构是:
to + 动词原形
例如:
- to run
- to write
- to listen
注意:
- 在某些情况下,“to”可以省略,比如在感官动词(see, hear, watch)后,或者在情态动词(can, should, would)之后。
三、动词不定式的用法
1. 作主语
To learn English is important.
学习英语很重要。
2. 作宾语
I want to go to the park.
我想去公园。
3. 作表语
Her dream is to become a teacher.
她的梦想是成为一名老师。
4. 作定语
Do you have anything to say?
你有什么要说的吗?
5. 作状语(表示目的)
He went to school to study.
他去学校是为了学习。
四、常见搭配与固定用法
| 动词 | 不定式用法 |
|------|------------|
| like | like to do sth. / like doing sth. |
| want | want to do sth. |
| hope | hope to do sth. |
| decide | decide to do sth. |
| agree | agree to do sth. |
五、易错点提醒
1. to 后面必须跟动词原形,不能加 -ing 或 -ed。
- ✅ He wants to play football.
- ❌ He wants playing football.
2. 有些动词后面只能接动词不定式,如:want, hope, need 等。
- ✅ She decided to leave.
- ❌ She decided leaving.
3. 一些动词既可以接 to do 也可以接 doing,但意义不同:
- like to do sth.(喜欢做某事)
- like doing sth.(喜欢经常做某事)
六、练习题(可用于PPT结尾)
1. I want ______ (go) to the movies.
2. She hopes ______ (pass) the exam.
3. They are going to ______ (study) for the test.
4. My brother likes ______ (swim).
5. Please remember ______ (call) me.
七、总结
动词不定式是英语中非常重要的语法点,掌握它的结构和用法有助于我们更准确地表达意思。通过不断练习和积累,我们可以更加灵活地运用它。
如果你需要将此内容转换为PPT格式或添加图片、图表等内容,我可以继续为你提供帮助。