表达自己的意见，大家常用“我认为……”，但有时候语气又不是很确定，英语中怎么表达这个意思呢？

1. I think:

备注：''I think''常用于口语中。

例：

I think (that)

I think the dog must have eaten it. （我想那条狗应该已经把它吃了。）

I think so

"Is Matthew still here?" "I think so—I've just seen him."（-马修还在这吗？  -应该在，我刚刚还见过他。）

I would think so

"Will Jenny be at the meeting?" "I would think so."（-珍妮会来参加这个会议吗？  -我想会的。）

2. I suppose: say this when you think that something is probably true but you are not really sure

备注：''I suppose''常用于口语中。

例：

Having a burglar alarm makes you feel safer, I suppose. （我想，装个防盗报警器，你会觉得安全点。）

I suppose (that)

I suppose we can pay by credit card but we'd better check first. （我认为，我们可以用信用卡结账，但我们最好先确认一下。）

I suppose so (=say this to answer a question)

"Will the children be disappointed?" "Yes, I suppose so."（-孩子们很失望吧？ -我想是的。）

3. I guess: say this when you think that something is probably true but you are not really sure

备注：''I guess''常用于美式英语的口语中。

例：

Rob just got tired of living with her, I guess. （我猜，罗博不想跟她一起住了。）

I guess (that)

I guess this is the best way to do it. （我想这是最好的办法了。）

I guess so

"Is the truck safe to drive?" "I guess so."（-开这辆卡车安全吗？  -我觉得安全。） 

4. I imagine: say this when you think that something is likely to be true, although what you say is only based on your opinion

备注：''I imagine''常用于口语中。

例：

I imagine (that)

I imagine she's stuck in a traffic jam or something. （我想她是堵车了或其他什么事耽搁了。）

I would imagine (that)

I would imagine that Lily could help you—she knows a lot about legal things. （我想莉莉可以帮你，法律的事她懂。）

5. get the impression/feeling/idea: to start to think something is a fact because of various things that happen, because of the way someone is behaving etc.

例：

get the impression/feeling/idea (that)

I got the impression she was actually quite nervous about it. （我感觉她非常紧张。）

Walking down the main street, you get the feeling that nothing ever happens in this town. （走在小镇的主街上，你会觉得小镇风平浪静。）

I don't want you to get the idea that I don't like him. （我不想让你觉得我不喜欢他。）

get this/that idea

"He thinks you're angry with them." "Where on earth did he get that idea?"（-他觉得你生他们的气了。 -他怎么会有这种感觉的？！）

6. as far as I know/aware: say this when you think that something is true, although you realize that you may not know all the facts

备注：''as far as I know/aware''常用于口语中。

例：

As far as I know, Caroline's never been married. （据我所知，凯洛琳没结过婚。）

As far as I am aware, Mr White and his family are still living in New York. （据我所知，怀特先生一家人现在还住在纽约。）

7. to the best of my knowledge: say this when you want to make it clear that you are not completely sure about the statement you are making

备注：''to the best of my knowledge''是口语中正式的表达法。

例：

To the best of my knowledge, this is the first time that anyone has translated these poems into English. （据我所知，这是这些诗首次翻译成英文。）

8. I take it: say this when you think that something is true and you are asking someone else to tell you that you are right

备注：''I take it''常用于口语中。

例：

I take it (that)

I take it that you're Rob's sister? （你是罗博的姐姐，对吗？）

So can we take it that you'll be at the meeting? （你会来参加这个会议？对吗？）

You've made plans for the future, I take it? （你已经做好打算了，是吗？）