A wet blanket 指让别人扫兴的人。大家想继续聚会或尝试有趣活动，对方却抱怨、劝阻、催着回家。这个习语偏口语，带有批评意味；用于谈论自己时，常带自嘲：I don't want to be a wet blanket, but it's late。作文中通常更适合中性地描述行为，例如 he was negative about every idea。
什么情境适合说 a wet blanket？
写一句英语，检查习语是否适合当前情境，以及哪里需要修改。
本次检查比平时稍久，完成后反馈会自动显示在这里。
be a wet blanket; don't be such a wet blanket; be a bit of a wet blanket
- I didn't want to be a wet blanket, so I joined in the karaoke even though I was tired.
- My flatmate is a bit of a wet blanket and complains about every weekend plan we make.
修改原因
修改前Don't be such wet blanket and stay for one more song.
修改后Don't be such a wet blanket and stay for one more song.
固定表达中的冠词容易被漏掉。但 wet blanket 在这里是单数可数名词，such 后需要 a：such a wet blanket。原句其他部分没有改动。
A boring person 只是让人觉得无趣，不一定会阻止别人享受活动。A wet blanket 则强调泼冷水、抱怨或催促，打消大家的兴致。比较：He's a bit boring 和 He's such a wet blanket, he wants to leave every party at nine。
动手练习
Everyone wanted to go swimming in the lake at midnight, but Tom kept saying it was too cold and too late. He was a real ___.
查看答案
wet blanket — 题目从大家想游泳、Tom 不断劝阻的角度，把他描述成扫兴的人，因此选 wet blanket。A black sheep 是被家庭或群体视为丢脸成员的人，不是本题要表达的意思。
回想一次有人影响大家心情的庆祝活动、旅行或聚会。说明那个人是谁，以及具体做了什么。
At my cousin's birthday party, her boyfriend was a real wet blanket: he kept checking his watch and complaining about the music.
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