关于宾语从句的讲解PPT课件
第一页:什么是宾语从句?
在英语句子中,除了主句之外,有时候还会出现一个由从句充当宾语的情况,这种从句就叫做宾语从句。
宾语从句通常位于动词或介词之后,用来说明这个动词或介词所表达的内容。
例如:
- I think that he is right.
- She asked where the library is.
第二页:宾语从句的引导词
宾语从句一般由以下几种引导词引导:
1. that(常省略)
- 例句:He said that he would come.
- 注意:在口语中,“that”常常被省略。
2. if / whether(表示“是否”)
- 例句:I wonder whether she will join us.
3. 连接代词:what, who, whom, whose, which
- 例句:Can you tell me what time the meeting starts?
4. 连接副词:when, where, why, how
- 例句:Do you know how to use this app?
第三页:宾语从句的语序
宾语从句必须使用陈述语序,不能使用疑问语序。
错误示例:
- Do you know where is the station? ❌
正确示例:
- Do you know where the station is? ✅
第四页:宾语从句的时态一致性
宾语从句的时态要与主句保持一致,但也有例外情况。
1. 主句是现在时,从句可根据需要使用任何时态。
- 例句:I believe he is honest.(现在时)
- 例句:I believe he was late yesterday.(过去时)
2. 主句是过去时,从句通常要用过去相关时态。
- 例句:She said she likes apples.(过去时)
- 例句:She said she had finished her homework.(过去完成时)
第五页:宾语从句的常见结构
常见的宾语从句结构有:
1. 主语 + 谓语 + that/whether/if 引导的从句
- 例句:They hope that they will pass the exam.
2. 主语 + 谓语 + 疑问词引导的从句
- 例句:Can you tell me where the bus stop is?
3. 主语 + 谓语 + 动词不定式 + 宾语从句
- 例句:I want to know what he said.
第六页:宾语从句的注意事项
1. that 的省略:在口语和非正式写作中,“that”可以省略。
- 例句:I think (that) he is wrong.
2. if 和 whether 的区别:
- “if”通常用于口语,“whether”更正式。
- “whether”后面可以接“or not”,而“if”不能。
- 例句:I don’t know whether or not he will come.
3. 避免重复:在某些情况下,可以从句中省略重复的成分。
- 例句:She asked what he wanted.(而不是“what he wanted to eat”)
第七页:练习与巩固
练习一:选择正确的引导词
1. I don’t know ______ he is coming.
A. if B. whether C. that D. when
2. Can you tell me ______ the nearest hospital is?
A. what B. where C. how D. when
练习二:改写句子
1. Do you know? Is he here?
→ Do you know whether he is here?
2. She said: “I am tired.”
→ She said that she was tired.
第八页:总结
- 宾语从句是句子中作动词或介词宾语的从句。
- 常见引导词包括:that, if, whether, what, where 等。
- 宾语从句必须使用陈述语序。
- 时态要与主句一致。
- 注意“that”的省略和“if/whether”的用法差异。
第九页:课后思考
你能否举出两个包含宾语从句的中文句子,并将其翻译成英文?试试看!
如需进一步扩展内容(如例句解析、语法图表、互动练习等),也可以继续补充。希望这份内容对你的教学或学习有所帮助!