英语重点难点精讲-673：think的用法及否定转移问题
◎ think可以用作及物动词和不及物动词。
① 用作及物动词，表示“想，思考”。
I think （that）she should go there. 我想她该去那里。
② 用作及物动词，表示“认为”。结构为：
think sb./sth. to be+宾语补足语 （to be 可省）
be thought to be+主语补足语
think+that从句
think+it+宾语补足语+不定式或that从句
We thought him （to be）an honest man. 我们认为他是一个诚实的人。
（被动结构为：He was thought to be honest. to be 不可省）
I think her （to be）clever. 我认为她聪明。（被动结构为：She is thought to be clever. to be不可省）
I think it is our duty to help her. 我认为我们有责任帮助她。
I think it a good idea to go there. 我认为去那里是个好主意。
I think it best that you should come. 我认为你来最好。
This book is thought to be the best English grammar book. 这本书被认为是最好的英语语法书。
③ 作及物动词，表示“打算（做某事），想要”，结构为：
think to do sth. （用于肯定句、否定句）
think+that从句
think+what从句
We thought to go on a holiday. 我们本打算去度假的。
I didn't think to meet you here. 我没想到在这里见到你。
I can't think what you mean. 我想不出你的意思。
④ 用作不及物动词，表示“想，思考”。
First think，then speak. 先思而后言。
You have to think very quickly. 他应该快速思考。
⑤ 表示“考虑，对……有某种看法”时，think about和think of可换用。
She thinks too much about/of herself. 她过多地考虑自己。
I don't care what other people think about/of me. 别人对我有什么想法我不在乎。
I'm thinking about/of buying a bike. 我正在考虑买一辆自行车。
We have many things to think about/of. 我们有许多事情要考虑。
What do you think about/of the book？你认为这本书怎么样？
⑥ 当think about表示“回想（过去的事情）”，“考虑”某事、某计划等是否可行时，不可用think of替换。
Don't think about the past any more. 不要再想过去的事了。
I've thought about it for some time. 这件事我已经考虑一段时间了。
⑦ 当think of表示“关心，想出，想到；想要，打算；记得，想起，想念”时，不可用think about替换。
He is always thinking of others. 他总是替别人着想。
I can not think of a suitable reply. 我想不出一个合适的回答。
He longed for her return and thought of writing to her. 他盼望她回来，想写信给她。
Could you think of Tom，our old friend？你还记得我们的老朋友汤姆吗？
⑧ think of…as意为“把……看作，把……认为是”。
I think of it as the most important problem. 我认为它是最重要的问题。
It was thought of as possible. 它被认为是可能的。
⑨ think sth. over意为“仔细考虑”。
You'd better think it over. 你最好认真考虑一下这件事。
We have to think the matter over. 我们得仔细考虑这件事。
