新概念英语
习语的表达力很强，比直白的描述更为生动。多掌握一些习语，对丰富你的英语表达能力非常有帮助！
今天我们就学习几个关于生病或不舒服的习语。先学常用的一个：
under the weather
生病；不舒服
I feel sort of under the weather today.
我今天有不舒服。
Whatever I ate for lunch is making me feel a bit under the weather.
午餐吃的不知什么让我有点不舒服。
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under the weather指的是轻微的生病、不舒服的感觉，如果想表达病得较厉害，可以用：
(as) sick as a dog
病得厉害
I haven't been avoiding you. I've just been sick as a dog.
我不是要避开你，我只是生病得厉害。
I had to go to the doctor on Monday because I was as sick as a dog all weekend.
我星期一得去看医生，因为我整个周末都病得厉害。
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如果是轻微的不舒服，有一点生病或烦躁的感觉，可以用这个习语：
out of sorts
身体不适
I've been out of sorts for a day or two. I think I'm coming down with something.
我这两天都不太舒服。我想我要得病了。
The baby is out of sorts today. Perhaps he's cutting a tooth.
小婴儿今天很躁动的样子，可能他长牙了。
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如果是想表达染上某病症，用这个表达：
come down with
染；得（某种病）
Susie came down with a bad cold and had to cancel her trip.
苏茜得了重感冒，只好取消了旅行。
I didn't go to work because I came down with the flu.
我没去上班，因为我得了流感。
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如果你have a sore throat or a cough，嗓子干或疼痛，而且严重到影响到说话，可以用这个成语表达：
have a frog in one's throat
失音或嗓音嘶哑
Teaching was difficult today. I had a frog in my throat all morning.
今天上课很困难，我一早上都失音。
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如果是需要动手术，就可以用这个成语来表达：
go under the knife
动手术
He was due to go under the knife today.
他约了今天动手术。
I've been under the knife several times.
我动过几次手术了。
