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I can't decide what to buy 成分划分
I 主语 can't情态动词 和decide谓语动词 一起构成谓语 what to buy是及物动词decide的宾语从句 而这里的what是动词短语和宾语从句的连接代词 这样理解对吗? 请指教
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推荐答案 2014-09-15
I can't decide what to buy
主语为I
can't 是情太动词,加上decide(主要谓语)构成复合谓语“can't decide”
what to buy 整体可以看成一个宾语成分;还可以理解成“疑问词”+ to do 构成宾语;
它也可以转换成下面句子,主句和从句主语为同一人时,可以缩写成原句形式
i can not decide what i should buy
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