| 单词 | if |
| 释义 | if [ɪf] conjunction IN THAT SITUATION 在那种情况下 ESSENTIAL ■used to say that a particular thing can or will happen only after something else happens or becomes true 假如，如果 •I'll pay you double if you get the work finished by Friday.如果你周五前完工，我付你双倍的报酬。 •We'll have the party in the garden if the weather's good. If not •If anyone rings for me, please tell them I'll be back in the office at 4 o'clock.要是有人给我打电话，请告诉他们我四点钟回办公室。 •If she hadn't called, I wouldn't have known.要不是她打电话来，我还不知道呢。 •I wouldn't work for them (even) •We'll deal with that problem if and when •If disturbed, the bird may abandon the nest, leaving the chicks to die.如果受到惊扰，鸟可能会弃巢而去，留下雏鸟，任由它们死亡。 ESSENTIAL ■although 虽然，即使 •She's a lovely woman, even •literary ESSENTIAL ■every time 当，每当 •If water is heated to 100°C it turns to steam.水被加热到摄氏100度时，就会变成蒸汽。 •If I don't get enough sleep I get a headache.我睡眠不足时就会头痛。 ESSENTIAL ■used to mean 'if it is true that' 如果…是真的 •I'm very sorry if I've offended you.如果我冒犯了你的话，我很抱歉。 Common Learner Errors ifRemember: when you are using if to talk about something happening in the future, use the present simple tense.Don't say 'if sth will happen', say if something happens :✗ I will try to visit you if I will have time.I will try to visit you if I have time.However, if a clause beginning with if is the object of the sentence, it is possible to use 'will':I don't know if I will have time to visit you. [ɪf] conjunction WHETHER 是否 ESSENTIAL ■(used to introduce a clause, often in indirect speech) whether （用于引出从句，常为间接引语）是否 •Mrs Kramer rang half an hour ago to ask if her cake was ready.克雷默夫人半小时前来电话问她的蛋糕做好了没有。 •I don't care if he likes it or not - I'm coming!我不在乎他喜不喜欢，我反正要来！ •I was wondering if you'd like to come to the cinema with me this evening?不知你今晚想不想与我一起去看电影？ [ɪf] conjunction REQUEST 请求 ■used when you want to make a polite request or remark （用于礼貌地作出请求或评论） •If you'd like to take a seat, Mr Chang will be with you in a moment.请您先坐一会儿吧，张先生一会儿就过来。 •Would you mind if I open/opened (= Can I open) the window?我开窗您介意吗？ •There are, if you don't mind me saying so, one or two problems with this plan.恕我冒昧，我觉得这个计划有一两个问题。 [ɪf] conjunction if I were you ADVANCED ■used when you give someone advice 如果我是你的话 •If I were you, I'd probably go.如果我是你，我可能会去。 •I think I'd take the money if I were you.如果我是你，我想我会接受这笔钱。 [ɪf] noun countable usually singular informal ■something which is not certain or not yet decided 不确定因素；未决之事；疑问 •There's a big [ɪf] noun countable usually singular informal no ifs and buts UK (US no ifs, ands or buts) ■something that you say to a child to stop them arguing with you when you want them to do something （对儿童用语）别找借口 •I want no ifs and buts - just get on and tidy your room now.别找借口——现在就赶快打扫你的房间。 |
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