2019外研版八年级下册8-10模块宾语从句 精讲
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最新外研版八年级下册9-10模块语法宾语从句
一.概念：由引导词引导的一个完整的句子，放在主句中谓语动词后，作这个谓
语动词的宾语，像这样的句子叫宾语从句。
（亦叫转述句）
二.主语+谓语+从句
三.分类：根据引导词的不同（转述的句型不同）可以分为三大类。
1.that引导的宾语从句，that 可省略，无意思，转述的是陈述句。
例如：Mary often tells me, “I like talking with you.”
=Mary often tells me (that) she likes talking with me.
She said, “you can do your homework by yourself.”
=She said ( that) I could do my homework by myself .
2.if或whether引导的宾语从句，“是否”的意思，不可省略，（注意：在whether……or not 结构中不可用if互换。
）转述的是一般疑问句。
例如：I want to know,”Will you come tomorrow?”
= I want to know if/whether you will come tomorrow.
I want to know whether you will come tomorrow or not.(不可用if 替换whether)
3.由疑问词引导的宾语从句，（如：when, how ,what,how long……）要用陈述句语序。
例如：I want to know,”When will you go to Shanghai?”
=I want to know when you will go to Shanghai.
四．宾语从句的时态：
1.主句用现在时，从句可以根据自己表达意思的需要使用任何一种时态。
例如：I think (that)Tom can win this writing competition.
She says(that)she likes playing with me.
2.主句用过去时时，从句使用相应的过去时。
例如：She said (that) she was watching TV.
Tom knew when Lily would go to Beijing.
3.从句描述的是真理时，永远只用一般现在时。
例如：My teacher told me( that) the earth goes round the sun.。
