这个单元有 5 章：主题课文"感冒去看医生"、词汇延展（身体与健康词族）、语法延展（should 提建议）、功能句型（看病与建议）、KET 考点与自测。
学完你能：用 80+ 身体和疾病词汇描述症状、看医生、给建议；should/shouldn't 表达"应该/不应该"。
预计时间：1 周。
前后衔接：上接 Unit 7 爱好，下接 Unit 9 天气——"健康"是 KET 听力 Part 3（医生对话）和写作（便条请假）的场景。
健康单元 = 身体疾病词族 + should 建议 + 看病句型。课文带你走一趟诊所，词汇按"身体部位/症状/建议"分组，语法攻克"应该怎么做"。
主题课文 · 感冒去看医生
课文 · A Bad Cold
课文精讲 · should 是"温和的建议"
论should ≠ must——语气轻重不同
should 是建议（应该，不做也没大问题）：You should drink more water（你该多喝水——建议）。
must 是必须（不做有后果）：You must take this medicine（你必须吃药——医嘱）。
have to 是客观必须：You have to go to school on weekdays（工作日你不得不去上学——客观规定）。
课文里的区别："You should drink lots of water"（建议）vs "You shouldn't go to school tomorrow"（不建议，语气更强一点）。should 否定 = shouldn't = should not。
① have a headache / have a cold 头疼 / 感冒（have + 病症）
② a sore throat 嗓子疼（sore + 身体部位）
③ take medicine 吃药（不是 eat medicine）
④ stay in bed 卧床休息
⑤ feel better 感觉好多了
三组词族 · 部位、症状、看病
| 组 | 核心词 | 搭配/备注 |
|---|---|---|
| 身体部位 | head, eye, ear, nose, mouth, tooth, neck, arm, hand, leg, foot, back | My head hurts.（我的头疼） |
| 症状疾病 | cold, fever, cough, headache, toothache, stomach ache, sore throat, flu | have a fever 发烧；ache 疼痛后缀 |
| 看病建议 | doctor, medicine, rest, sleep, hospital, dentist, examine, healthy | go to the doctor's 看医生 |
| 健康习惯 | exercise, fresh air, healthy food, wash your hands, sleep early | do exercise 锻炼（不可数） |
① 疼怎么说：My head hurts（我的头疼）或 I've got a headache。不能说 My head is hurt。headache（头疼）、toothache（牙疼）、stomach ache（胃疼）——-ache 是"疼"后缀。
② 感冒是 cold 不是 cool：catch a cold（着凉感冒）——cold 作名词 = 感冒。
③ 量词搭配：a bottle of medicine（一瓶药）、three times a day（一天三次）——"次数"用 times，不是 numbers。
语法延展 · should 提建议
should 全家族 · 一张表（可参看「should 提建议」深化页）
| 功能 | 肯定/否定 | 疑问 |
|---|---|---|
| 建议 | You should rest. / You shouldn't stay up late. | Should I see a doctor? |
| 评价 | You should be more careful. | What should I do? |
| 推测 | The test should be easy. | — |
论should 和 must 的轻重
should = 建议（"最好…"）：You should drink water（你最好多喝水）——不听也没事。
must = 必须（"一定得…"）：You must take the medicine（你一定得吃药）——医嘱，不听更糟。
口语中的固定搭配：You'd better...（你最好…）= you had better，比 should 语气更急一点。考试两个都考。
情景操练
即学即用
练习1（填空）：① You ___ (should) go to bed early. ② She ___ (should not) eat so much fast food. ③ ___ I take this medicine?
练习2（改错）：① He should drinks more water. ② You shouldn't to stay up late. ③ She shoulds rest.
练习3（给建议）：朋友牙疼，用 should 给 3 条建议。
练习4（写自己的话）：写 3 句健康建议（应该做 1 句 + 不应该做 1 句 + 问句 1 句）。
查看参考答案
- 练习1：① should ② shouldn't（should not） ③ Should
- 练习2：① He should drink more water（should 后原形） ② You shouldn't stay up late（不加 to） ③ She should rest（无 -s）
- 练习3（示范）：You should see a dentist. You shouldn't eat too many sweets. You should brush your teeth twice a day.
- 练习4（示范）：You should do exercise every day. You shouldn't play phone games for hours. Should I drink more water?
功能句型 · 看病与建议（可参看「看病与建议句型」深化页）
三套句型模板
I don't feel well. / I've got a headache. / My leg hurts.
I feel tired and I can't sleep.
What's the matter? / How long have you felt like this?
Have you got a fever? / Does it hurt here?
You should rest. / You shouldn't go to school.
Take this medicine three times a day. / Drink lots of water.
场景对话 · 诊所实战
Tom: I don't feel very well. I've got a sore throat and I keep coughing.
Doctor: How long have you felt like this?
Tom: Since yesterday evening.
Doctor: Let me have a look. Open your mouth... yes, it's a bit red. Do you have a fever?
Tom: I think so. I feel hot.
Doctor: You've got a cold. You should drink lots of warm water and rest for two days. You shouldn't go to school tomorrow.
Tom: Do I need medicine?
Doctor: Here's some syrup. Take it twice a day, after meals. And you should sleep early. You'll feel better soon!
KET 考点 · 健康主题怎么考 + 自测
考点分布表
| 卷子 | 题型示例 | 应对策略 |
|---|---|---|
| Reading Part 4/5 | 完形：should 填空、have got + 病症 | should 后原形；have a cold 固定搭配 |
| Listening Part 3 | 医生/病人对话："What's wrong with the boy?" | 记症状词 + 建议动词 |
| Listening Part 4 | 填药方/医嘱（次数、时间） | three times a day、after meals |
| Writing Part 6 | 请假条："I can't go to school because..." | 原因 + 时间 + 请求 |
| Speaking Part 1 | "How do you stay healthy?" | should + 健康习惯 |
本单元自测 · 8 题
KET 健康主题自测
1（填空）：I've got a ___ (嗓子疼).
2（选择）：You ___ take this medicine three times a day. A. should B. shoulds C. should to
3（易混）：My tooth ___ . A. hurts B. is hurt C. hurt
4（改错）：You should to drink lots of water.
5（阅读判断）："The doctor said I shouldn't go to school tomorrow." —— Tom can stay at home tomorrow. A. True B. False C. Not given
6（听力）：听到 "Take the medicine twice a day, after meals." —— 一天吃几次药？
7（写作）：写请假条：感冒了不能上学，说明多久能回去。
8（口语）：用 should 给"晚睡的朋友"3 条建议。
查看参考答案
- 1：sore throat（I've got a sore throat）
- 2：A（should 后原形，无 -s 无 to）
- 3：A（My tooth hurts；不是 is hurt）
- 4：You should drink lots of water（should 后原形）
- 5：A（不该去上学 = 可以待在家）
- 6：两次（twice a day）
- 7（示范）：Dear Miss Green, I can't go to school today because I've got a cold. I'll be back in two days. Thank you. Tom
- 8（示范）：You should go to bed earlier. You shouldn't play games late at night. You should get up early and do some exercise.
在线学习资源 · 剑桥官方
点进官方考试页可下载免费样题；本课程课文为同主题原创内容，知识点与官方大纲对齐。