| 单词 | 真时 |
| 释义 | 〔doubt〕That is also the usual choice when the truth of the clause following doubt is assumed, as in negative sentences and questions. ThusI never doubted for a minute that I would be rescued implies "I was certain that I would be rescued.” By the same token,Do you doubt that you will be paid? seems to pose a rhetorical question ("Surely you believe that you will be paid"), whereasDo you doubt whether you will be paid? may express a genuine request for information and might be followed bybecause if you do, you should make the client post a bond. In other cases, however, this distinction betweenwhether and that is not always observed, andthat is frequently used as a substitute for whether. If may also be used as a substitute forwhether but is more informal in tone. ·In informal speech the clause followingdoubt is sometimes introduced with but: I don't doubt but (or but what ) he will come. Reputable precedent exists for this construction,as in"I do not doubt but England is at present as polite a Nation as any in the World" (Richard Steele),but modern critics sometimes object to its use in formal writing.See Usage Note at but ,if 在否定句及疑问句中当doubt 后的从句所作陈述被认为是真时，用 that 。 所以我从不怀疑我会被救起 意思就是“我确信我会得救”。 同样你怀疑人家会赖帐吗？ 似乎就成了一个反问句（“你当然相信人家不会赖帐了”）， 而你怀疑人家是否付款吗？ 就表示一个真诚的询问， 可能接下来会说因为如果你怀疑的话，你就该让顾客付保证金 。 在其它情况下，whether 和 that 的区别并不很明显， 而且that 经常用来替代 whether。 If 也经常用来代替whether ， 但是语气不很正式。在非正式语气中doubt 后面的从句有时由 but引导：I don't doubt but （或 but what ) he will come。 这种结构有其先例且属规范用法，如“我不怀疑目前的英格兰象世界上其他国家一样是礼义之邦” （理查德·斯蒂尔），但现代评论家有时反对在正式文体中这样使用 参见 but,if〔conjunction〕Abbr. conj.A compound proposition that has components joined by the wordand or its symbol and is true only if both or all the components are true. 缩写 conj.综合命题：由和 或其符号所连接的子句组成的复合命题，只有当所有子句为真时，该句才为真 |
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