形容词 “expect”、“wait” 和 “hope” 都能够用于讨论未来要产生的事儿，但他们的含意不一样。形容词 “expect” 表明 “某件事很有可能会产生”；形容词 “wait” 表明 “花时间等候某件事产生”；形容词 “hope” 表明 “期待某件事会产生”。
1 Expect
形容词 “expect（预估）” 表明 “某件事很有可能会产生”。“Expect” 后接不定式 “to do”、宾语或由 “that” 正确引导的从句。
I expect to arrive by 4.
I expect you to clean your room.
It's raining today, so I expect (that) the traffic3 will be really bad.
2 Wait
形容词 “wait（等候）” 表明 “花时间等候某件事产生”。“Wait” 后一般接代词 “for” （wait for something）或接不定式 “to do”（wait to do something）。
I'm waiting for the rain to stop.
He'll never wait for you to arrive if he wants to leave.
We should wait to see what happens.
3 Hope
形容词 “hope （期待）” 表明 “期待某件事会产生” 。“Hope” 后接 “for”、不定式 “to do” 或由 “that” 正确引导的从句。
Never give up. You have to hope for the best.
That was4 fun. I hope to see you again soon!
I hope (that) it will be sunny tomorrow.