sick
单词辨析：
指患病的或身体不舒服的，通常作表语。
He is ill, so he didn't take part in the picnic.
他病了，所以没参加这次野餐。
She felt ill in the morning and decided to stay home.
她早上觉得不舒服，决定留在家里。
指健康状况不佳的，通常作表语。
She should rest well because she's been feeling poorly.
她一直感到身体不适，应该好好休息一下。
指在身体或精神上生病的，既可作表语又可作定语。
He is sick and cannot go to work.
他生病了，不能去上班。
More exercise will prevent you from getting sick.
多锻炼你就不会生病了。
Susan is looking after her sick mother.
苏珊在照顾她患病的母亲。
相关例句：
I was scared that I might be sick
我担心自己可能病了。
That's really sick.
那真够吓人的。
He's very sick. He needs medication
他病得很厉害，需要药物治疗。
I was in the depths of despair when the baby was sick.
孩子生病时我陷入了绝望的深渊之中。
She found herself with two small children, a sick husband, and no money
她发觉自己有两个年幼的孩子和一个有病在身的丈夫，却没钱养活他们。
I have a sick child on my hands.
我身边有个病孩要照料。