知识扩展
相关变形拓展
三单：doubts→过去式：doubted→过去分词：doubted→现在分词：doubting→同义：uncertainty(怀疑)→对应：trust(信任)
易混词辨析
doubt、suspect、doubtful、undoubtedly
1. doubt：作动词，“怀疑；不相信”（搭配 “doubt sth.；doubt if/whether”）；作名词，“怀疑；疑问”（搭配 “have doubt about”）；
2. suspect：作动词，“怀疑（某事属实）；猜想”（搭配 “suspect sb. of；suspect that”），与 doubt（不相信）语义相反；
3. doubtful：形容词，“怀疑的；不确定的”，由 doubt 派生，词性不同（搭配 “be doubtful about”）；
4. undoubtedly：副词，“无疑地、肯定地”，与 doubt 语义相反。
常用短语
no doubt 无疑地；很可能地
in doubt 可怀疑的；不能肯定的
there is no doubt 毫无疑问
without doubt 无疑地；确实地
精选例句
1、 I have no doubt that he will pass the English exam easily.
我毫不怀疑他能轻松通过英语考试。（doubt此处为名词“怀疑”，常用搭配have no doubt that从句，也可作动词）
来源:【中考难度例句】秒词邦编辑整理了
2、 It's still a little too cold for them to go out into the open, but as soon as the weather warms up, I have no doubt that the little one will be out and about exploring and playing every day.
天气对他们来说还是有点太冷了，不能出去，但一旦天气变暖，我相信小家伙每天都会出去探索和玩耍。
来源:2021年新高考英语甲卷阅读理解题
1、 But the urge would no doubt be greater if you were living on the streets with little food and money.
但是，如果你生活在街头，食物和钱都很少，这种欲望无疑会更强烈。[机器自动翻译，如有错误，感谢纠错]
来源:2018年高考英语北京卷 完形填空 原文
1、 M)Ring says foreign language skills are important,but expresses doubt that school districts could work both coding and language into their curriculum in a significant way because they lack the time in the school day.
Ring说外语技能很重要，但他对学区能否将编程和语言结合到课程中去表示怀疑，因为他们缺乏上学的时间。
来源:2022年9月六级第1套题句子搭配题
1、 There is no doubt of the alternative – the corrupted landscapes of southern Portugal, Spain or Ireland.
毫无疑问，另一种选择是葡萄牙南部、西班牙或爱尔兰的腐败景观。
来源:2016 年全国硕士研究生招生考试英语（一）Text 2
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