if
美 [ɪf]
英 [ɪf]
- conj.如果；当；倘若；假若
- n.不确定的情况
- 网络假如；条件；是否
复数：ifs
if
显示所有例句
1. | 如果；假若；倘若used to say that one thing can, will or might happen or be true, depending on another thing happening or being true |
If you see him, give him this note. 你要是见到他，就把这个便条给他。 | |
I'll only stay if you offer me more money. 你给我更多的钱我才会留下。 | |
If necessary I can come at once. 如果有必要，我可以马上来。 | |
You can stay for the weekend if you like. 你如果愿意就留在这里过周末吧。 | |
If anyone calls, tell them I'm not at home. 要是有人打电话来，就说我不在家。 | |
If he improved his IT skills, he'd(= he would) easily get a job. 他如果提高了自己的 IT 技能，就会容易找到工作。 | |
You would know what was going on if you'd(= you had) listened. 你若是注意听了就会知道发生什么事了。 | |
They would have been here by now if they'd caught the early train. 假若他们赶上了早班火车，现在就该到这里了。 | |
If I was in charge, I'd do things differently. 假若由我负责，我不会这样办事的。 | |
If I were in charge… 假若由我负责… | |
Even if(= although) you did see someone, you can't be sure it was him. 即使你确实看见有个人，也不能保证那就是他。 |
2. | 当；无论何时；每次when; whenever; every time |
If metal gets hot it expands. 金属受热就膨胀。 | |
She glares at me if I go near her desk. 我一走近她的办公桌，她就对我瞪眼。 |
3. | （与 will 或 would 连用，表示客气地请求）used withwill orwould to ask sb politely to do sth |
If you will sit down for a few moments, I'll tell the manager you're here. 请稍坐，我这就告诉经理说您来了。 | |
If you would care to leave your name, we'll contact you as soon as possible. 麻烦您留下姓名，我们会尽快与您联系的。 |
4. | （用于 ask、know、find out、wonder 等之后，引出两个或以上的可能性之一）是否used afterask ,know ,find out ,wonder , etc. to introduce one of two or more possibilities |
Do you know if he's married? 你知道他是否结婚了？ | |
I wonder if I should wear a coat or not. 我不知道该不该穿外套。 | |
He couldn't tell if she was laughing or crying. 他弄不清楚她是在笑还是在哭。 | |
Listen to the tune and see if you can remember the words. 听听曲调，看你能否记起歌词。 |
5. | （用于表示情感的动词或形容词之后）used after verbs or adjectives expressing feelings |
I am sorry if I disturbed you. 很抱歉，打搅您了。 | |
I'd be grateful if you would keep it a secret. 你如果能对此保密，我将不胜感激。 | |
Do you mind if I turn the TV off? 我关上电视可以吗？ |
6. | （承认某事可能，但不很重要）即使，虽然used to admit that sth is possible, but to say that it is not very important |
If she has any weakness, it is her Italian. 如果要说她有什么缺点，那就是她的意大利语不大行。 | |
So what if he was late. Who cares? 他就是迟到了又怎么样。谁在乎？ |
7. | （置于形容词之前，引出对比）虽然，尽管used before an adjective to introduce a contrast |
He's a good driver, if a little over-confident. 他是个好司机，虽然有点过于自信。 | |
We'll only do it once─ if at all . 我们就是干也只会干一次。 |
8. | （请对方听自己的意见）used to ask sb to listen to your opinion |
If you ask me, she's too scared to do it. 依我看，她被吓得不敢做了。 | |
If you think about it, those children must be at school by now. 想想吧，那些孩子现在一定在学校了。 | |
If you remember, Mary was always fond of animals. 记得吧，玛丽总是喜欢动物。 |
9. | （置于 could、may 或 might 之前，提出建议或客气地打断别人的话）used beforecould ,may ormight to suggest sth or to interrupt sb politely |
If I may make a suggestion, perhaps we could begin a little earlier next week. 我来提个建议吧，或许我们下个星期可以早一点开始。 |
IDM
If and when we ever meet again I hope he remembers what I did for him. 倘若我们再次见面，我希望他还记得我为他做的事。 |
if and when
（谈及可能发生或不发生的事时说）used to say sth about an event that may or may not happen
If and when we ever meet again I hope he remembers what I did for him. 倘若我们再次见面，我希望他还记得我为他做的事。 |
I'd say he was more like his father, if anything. 依我看，如果一定要说他像谁的话，他比较像他的父亲。 | |
She's not thin─if anything she's on the plump side. 她并不瘦，其实她还有点胖呢。 |
if anything
（表达看法，或用在否定句之后表示反面意见才对）used to express an opinion about sth, or after a negative statement to suggest that the opposite is true
I'd say he was more like his father, if anything. 依我看，如果一定要说他像谁的话，他比较像他的父亲。 | |
She's not thin─if anything she's on the plump side. 她并不瘦，其实她还有点胖呢。 |
If I were you I'd start looking for another job. 我要是你，就会去另找工作了。 |
if I were you
（提出劝告时说）used to give sb advice
If I were you I'd start looking for another job. 我要是你，就会去另找工作了。 |
I'll go if you're going. If not(= if you are not) I'd rather stay at home. 你去我就去。不然的话，我宁愿待在家里。 |
Are you ready? If not, I'm going without you. 你准备好了吗？否则我就自己去了。 | |
Do you want that cake? If not, I'll have it. 你要那块蛋糕吗？不然我就要了。 |
They cost thousands if not millions of pounds to build. 建设要耗费数千英镑，甚至可能是数百万英镑。 |
if not
（用在 if 引导的句子之后）不然，要不used to introduce a different suggestion, after a sentence withif
I'll go if you're going. If not(= if you are not) I'd rather stay at home. 你去我就去。不然的话，我宁愿待在家里。 |
（用于 yes ╱ no 疑问句之后，表示如果答案是 no，将会或应该发生什么）used after ayes/no question to say what will or should happen if the answer is ‘no’
Are you ready? If not, I'm going without you. 你准备好了吗？否则我就自己去了。 | |
Do you want that cake? If not, I'll have it. 你要那块蛋糕吗？不然我就要了。 |
（表示可能更大或更重要等）used to suggest that sth may be even larger, more important, etc. than was first stated
They cost thousands if not millions of pounds to build. 建设要耗费数千英镑，甚至可能是数百万英镑。 |
If only I were rich. 但愿我很富有。 | |
If only I knew her name. 我要是知道她的名字就好了。 | |
If only he'd remembered to send that letter. 要是他没忘记发那封信就好了。 | |
If only I had gone by taxi. 我要是乘出租车去就好了。 |
if only
但愿used to say that you wish sth was true or that sth had happened
If only I were rich. 但愿我很富有。 | |
If only I knew her name. 我要是知道她的名字就好了。 | |
If only he'd remembered to send that letter. 要是他没忘记发那封信就好了。 | |
If only I had gone by taxi. 我要是乘出租车去就好了。 |
I'm surprised they've invited me to their wedding─it's not as if I know them well. 我很惊讶他们居然请我参加他们的婚礼，我跟他们似乎并不熟。 |
its not as if
（表示所发生的事情令人惊讶）used to say that sth that is happening is surprising
I'm surprised they've invited me to their wedding─it's not as if I know them well. 我很惊讶他们居然请我参加他们的婚礼，我跟他们似乎并不熟。 |
Only if a teacher has given permission is a student allowed to leave the room. 学生只有得到老师的许可才能离开教室。 | |
Only if the red light comes on is there any danger to employees. 只有红灯闪亮时才有危及职工的险情。 |
only if
只有used to state the only situation in which sth can happen
Only if a teacher has given permission is a student allowed to leave the room. 学生只有得到老师的许可才能离开教室。 | |
Only if the red light comes on is there any danger to employees. 只有红灯闪亮时才有危及职工的险情。 |