A:i doubt if he will keep his promise,这句话的语法对吗?意思是
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解决时间 2021-02-28 11:03
- 提问者网友:溺爱和你
- 2021-02-28 05:51
A:i doubt if he will keep his promise,这句话的语法对吗?意思是
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- 五星知识达人网友:神的生死簿
- 2021-02-28 06:31
意思一样的.只是if还有如果的意思,所以最好用B的方式写好.======以下答案可供参考======供参考答案1:if whether都行【“是否”之意】,但是如果句子末尾有or not就必须用whether,这可是规定啊。if whether如果当“是否 ”讲,意思是一样的,可以互换。供参考答案2:A、B两种说法都是正确的,表示“是否”这个概念的时候我们既可以用“if”,也可以用“whether”,但是如果这句话后面跟有“or not”就只能用“whether”了。whether和if的具体区别如下:1. whether引导的从句常可以与连词or或or not直接连用,而if一般不能。如: 正: Let me know whether you can come or not. 误: Let me know if you can come or not. 2. 当宾语从句提到句首时,只能用whether引导,而不能用if。如: 正: Whether it is true or not, I can’t tell. 误: If it is true or not, I can’t tell. 3. whether可以引导带to的不定式,if则不能。如: 正: I don’t know whether to accept or refuse. 误: I don’t know if to accept or refuse. 4. whether及其引导的成分可放于介词之后,作介词的宾语,但if不能。如: 正: I worry about whether I hurt her feelings. 误: I worry about if I hurt her feelings. 5. whether可以引导从句,作主语、表语或同位语,而if不能。如: 正: It was uncertain whether he would come. 误: It was uncertain if he would come. 正: His first question was whether Tom had arrived yet. 误: His first question was if Tom had arrived yet. 正: We must consider the question whether we will take these measures. 误: We must consider the question if we will take these measures.供参考答案3:都可以doubt后接宾语从句时,当主句是肯定句,用if 或whether引导,当主句是否定句用that引导也就是:I doubt if/whether...I don't doubt that..供参考答案4:A的表述是对的供参考答案5:都行吧,if可以做是否讲,whether就更可以了供参考答案6:意思是一样的,if只有在引导条件状语从句时才是“如果、假使”的意思
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- 1楼网友:渊鱼
- 2021-02-28 07:51
这个问题的回答的对
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