1. What’s the matter (with you)? 怎么了?出什么事了?
What’s the trouble/ the problem / wrong with sb./ sth.?
2. I had a cold.我感冒了。
have a cold=catch a cold=have the flu have a fever
have a cough咳嗽
have a stomachache 胃疼，肚子疼 have a toothache 牙疼 have a headache头疼
3. 身体部位+ache(疼痛)构成新的复合词
stomach+ache=stomachache head+ache=headache tooth+ache=toothache
back+ache=backache后背痛
4. much too+ 形容词，too much+不可数名词
5. enough【形容、副词】足够的/地，enough放在名前后，形副后。
good enough足够好，enough money=money money