think 后面接什么?

正确，think 后面省略了that.

后面接that从句

think about. - -?

think
vt.
(thought[WC:t])

想; 考虑; 思索

以为, 认为

企图, 预料

想象; 揣测, 猜想

使想(得); 感到

I'm thinking what to do next.
我在考虑下步怎么办。
Do you think it will rain.
你认为天会下雨吗?
I didn't think to find you here.
我没想到在这里遇到你。
He thinks to escape punishment.
他企图逃脱惩罚。
I can't think how you do it.
我想象不出你是怎么做的。
Tom thought himself into a dilemma.
汤姆想得无所适从。
I thought shame to be so careless.
我因为这样粗枝大叶而感到 惭愧。
习惯用语
come to think of it 细想一下
First think, then speak. [谚]先思而后言。
I don't think [俚]我倒不相信, 靠不住(加在讽语之后)
just think 只想想看(表示惊异)
not to be thought of 不能设想
Only think! [口]嗳, 你想想看! 试想一下, 真想不到!
Who could have ever thought? 谁会想到?
wouldn't think of 绝不会想[做]那种事
You can't think! [口]真想不到! 简直不能想象! 简直令人难以相信!
think abou