1. 时态问题
(1) 表示“认为”或“在……看来”时,不用于进行时态;但表示“考虑”“思考”等,可用于进行时态。如:
I think it’s going to rain. 我想要下雨了。
I’m thinking whether I should go. 我在考虑是否应该去。
有时为了使语气更委婉或更带有试探性,可用一般过去时或过去进行时形式(但并不表示过去意义)。如:
I thought you might like something to read. 我想也许你想要读点什么。
(2) 用于过去完成时,表示未曾实现的想法或意图,可译为“原认为”“本来认为”。如:
I had thought that he would come to help us. 我原认为他会来帮助我们的。
2. 否定问题
当 think表示“认为”,且主语为第一人称时,若其后跟一个表示否定概念的宾语从句,通常将否定转移到主句上(当然若将否定放在从句也不算错,只是听起来较生硬)。如:
I don’t think she’s really fit for the job. 我认为她并不真正适合这项工作。
We don’t think he is very clever. 我们认为他不是很聪明。
在下列情况通常无需发生否定转移:
(1) 当 think 有副词修饰时。如:
I really think that he will not help us. 我的确认为他不会帮我们。
(2) 当 think 前有表示强调的助动词 do 时。如:
I do think that you are not right. 我的确认为是你不对。
(3) 当 think 不是以一般现在时形式出现时(如是一般过去时、过去进行时、过去完成时等)。如:
I thought you hadn’t read it. 我认为你没有读它呢。
I had thought he couldn’t pass the exam. 我原认为他考试不会及格的。
(4) 当本意是要否定主句时。如:
We didn’t think we’d be so late. 我们没想到会那么迟。
(5) 当 think 与其他动词并列使用时。如:
I think and hope that I’m not disturbing you too much. 我认为同时也希望我没有打扰你太多。
(6) 当从句的否定构成某种特殊句型时。如:
I think that he cannot do the work too well. 我认为这项工作他干得越出色越好。
3. 询问看法
询问对方看法时,可用What do you think of …或How do you like…,但是习惯上不说How do you think of …或What do you like…等。比较:
你觉得这部电影怎么样?
正:What do you think of the film?
正:How do you like the film?
误:How do you think of the film?
误:What do you like the film?
你认为他什么时候回来?
正:When do you think he will come back?
误:Do you think when he will come back?
4. 表示打算
表示打算做些某事,通常用think of doing sth。如:
I’ve been thinking of changing my job. 我一直想换个工作。
We are thinking about buying a car. 我们在考虑买辆汽车。
偶尔也用think to do sth(不算普通)。如:
They think to influence the voters. 他们打算影响选民。
但think to do sth用于否定句表示“没想到”的意思则属普通用法。如:
I didn't think to see you here. 没想到在这儿见到你。
另外,用于过去时或过去完成时,表达本想做某事而实际上没做成时,后接不定式也属正常用法。如:
I thought to leave earlier. 我本想要早点出发的。
We had thought to return early but they wouldn’t let us go. 我们本想早回来的,但他们不让我们走。
5. 用于特殊疑问句
与疑问词连用时,要将疑问词置于句首。如:
你认为他在这里会呆多久?
正:How long do you think he will stay here?
误:Do you think how long he will stay here?
6. 在口语表达中的用法
口语中的Just think…与To think…均表示惊奇,但后者往往还有没想到或遗憾、可惜等意。如 :
Just think how much money he has spent! 你想想他花了多少钱吧。
Think that he was getting famous already!没想到他已经要出名了。
To think of his not knowing about it! 想想看,他对此竟然一无所知。
……
■摘自《中学英语高频词详解词典》(金盾出版社)
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