doubt作動(dòng)詞有“懷疑，不確定；不信任”的意思，作名詞有“疑問(wèn)；疑慮；不確定”的意思。常用搭配有：have doubts 有懷疑；have no/little doubt 絲毫不懷疑；doubt about 對(duì)...產(chǎn)生懷疑；There's no doubt that 毫無(wú)疑問(wèn)。

doubt用作動(dòng)詞

1.doubt的基本意思是對(duì)事〔物〕的真實(shí)性等表示“懷疑”或“不信任”,有時(shí)甚至在調(diào)查研究之后仍“難以確定”。也常用來(lái)表示對(duì)宗教信條等持有疑慮。

2.doubt多用作及物動(dòng)詞,可接名詞、代詞、動(dòng)名詞、帶疑問(wèn)詞的動(dòng)詞不定式或that/wh-/if從句作賓語(yǔ),也可接以“(to be+) n./adj. ”充當(dāng)補(bǔ)足語(yǔ)的復(fù)合賓語(yǔ)。接that從句作賓語(yǔ)時(shí), that前有時(shí)可加but。

Maybe he changed his mind, but I doubt it.

也許他改變了主意,但我表示懷疑。

You can write to him if you doubt my words.

要是你不信我說(shuō)的話,可寫(xiě)信去問(wèn)他。

3.doubt偶爾也用作不及物動(dòng)詞,常與介詞of連用表示“對(duì)…抱懷疑或悲觀的態(tài)度”。

She said that I was getting into the habit of doubting.

她說(shuō)我漸漸地好像對(duì)什么都不確定。

4.用作賓補(bǔ)動(dòng)詞

We doubted him a liar.

我們懷疑他是個(gè)騙子。

Nobody doubts him to have been honest.

沒(méi)有人懷疑他曾經(jīng)是誠(chéng)實(shí)的。

5.在疑問(wèn)句或否定句中, doubt的賓語(yǔ)從句應(yīng)用that引導(dǎo); 在肯定句中,則應(yīng)由if〔whether〕引導(dǎo)。

doubt用法固定搭配

doubt about something：對(duì)某事的懷疑

doubt if/whether：懷疑是否

beyond a doubt：毫無(wú)疑問(wèn)

cast doubt on something：對(duì)某事表示懷疑