Health, the body and fitness 健康、身体与健身

Getting sick and recovering are both changes of state and need 了; a habitual fact does not. ✗ 我昨天生病，今天好。(no 了 -- reads as a timeless fact) ✓ 我昨天生病了，今天好多了。(Wǒ zuótiān shēngbìng le, jīntiān hǎo duō le.) -- I got sick yesterday, today much better. But do NOT add 了 to a habit: ✗ 我每天都咳嗽了。 ✓ 我每天都咳嗽。(Wǒ měitiān dōu késou.) -- I cough every day.

Task Completion needs an actual named benefit, not a restatement that benefits exist. ✗ 每天运动有很多好处。(names nothing) ✓ 每天运动可以让身体更健康，也能让人精神更好。(Měitiān yùndòng kěyǐ ràng shēntǐ gèng jiànkāng, yě néng ràng rén jīngshén gèng hǎo.) Always name the real benefit -- fewer illnesses, more energy, better sleep -- never 好处 alone.

A number saying how many TIMES something happens needs 次 after it, just as any count needs its measure word. ✗ 我一个星期运动两，感冒三。(both numbers left bare) ✓ 我一个星期运动两次，一年感冒三次。(Wǒ yí ge xīngqī yùndòng liǎng cì, yì nián gǎnmào sān cì.) -- I exercise twice a week and catch a cold three times a year. Learn number + 次 as one chunk.

Reading and Writing reward the exact symptom, not a vague "unwell". ✗ 我不舒服。(no locatable detail) ✓ 我头疼，喉咙也疼，还有点发烧。(Wǒ tóu téng, hóulóng yě téng, hái yǒudiǎn fāshāo.) State WHERE it hurts and WHAT the symptom is (头疼、喉咙疼、发烧、咳嗽); keep 不舒服 only as a summary, never the whole answer.

Advice must name a specific action, not just the opinion word. ✗ 你应该注意身体。(vague -- no concrete step) ✓ 你应该多喝水、多休息，早点睡觉。(Nǐ yīnggāi duō hē shuǐ, duō xiūxi, zǎodiǎn shuìjiào.) -- You should drink more water, rest more and sleep earlier. Pair 应该/不应该 with a real, doable action (吃药、休息、看医生) so the advice counts as content.

In Listening the wrong option is often a symptom that WAS said, but about the wrong person or time. ✗ picking 发烧 because you heard the word, when someone else had the fever ✓ track WHO each symptom belongs to. Listen to the whole clause, not one word -- a later phrase can correct an earlier one, and a negative word can flip the answer.

看病 (kànbìng) is a set phrase meaning "to see a doctor / get treatment" -- the subject is normally the PATIENT going for care, not the doctor examining someone. ✗ reading 看病 literally as "look at the illness" ✓ 我不舒服，要去看病。(Wǒ bù shūfu, yào qù kànbìng.) 看医生 (kàn yīshēng -- to see a doctor) is an equally common alternative with the same patient-as-subject meaning.