suppose v
1.认为，料想，判断
①suppose (that)
I suppose (that) it will rain tomorrow.我想明天会下雨。
注意：suppose后的宾语从句的否定形式采用否定转移。
I don't suppose they will go camping tomorrow.我想他们明天不会去露营。
②What/when/why/...do you suppose 陈述结构
Why do you suppose he resigned?你凭什么推断他辞职了呢？
When do you suppose we should start?你认为我们该什么时候出发?
③suppose sb to be(to do sth)
I suppose my English teacher to be about 30.我想我的英语老师大约30岁。
I suppose him to have left the classroom.我猜想他已经离开教室了。
④suppose sb n/adj
I had supposed him younger.我以为他更年轻。
He had supposed me a Chinese teacher.他以为我是语文老师。
2.假定，假设，设想
①suppose (that)
Suppose（that) you have three days off, what would you like to do?假如你有三天假，你想做什么?
Let's suppose (that) you are admitted by a key university.假设你被一所重点大学录取了。
②suppose sb to be(to do sth)
Suppose the gentleman to be your boss.假设这位先生是你的老板。
Let's suppose you to go traveling alone.假设你一个人去旅行。
③suppose sb n/adj
Suppose him a hero.假设他是个英雄。
Suppose the hero dead.假设英雄死了。
3.（婉转表达）我看，要我说，要不
--Can I borrow your bike? 我能借你的自行车吗？
--I suppose so (= Yes, but I'm not happy about it) .应该可以吧。
Suppose we take a bus?要不我们乘公共汽车怎么样?
4.be supposed to be / to do
①（按习惯，规定，安排等）应该，应当
You are supposed to buy a ticket in advance.你应该提前买票。
You were supposed to be here earlier.你本应该早点到的。
②人们普遍认为
I haven't been there myself, but it's supposed to be a good place to visit.我自己没去过那里，但人们普遍认为那是一个游览的好地方。
5.supposing conj 如果，假如
Supposing (that) we will have three days off, what would you do most?假如我们放三天假，你最想做什么?
