Unit2核心知识点及练习2025-2026学年人教版英语八年级下册

2026新人教版八年级下册英语Unit 2 Stay Healthy 单元核心知识点精讲提纲 必背单词+重点短语+核心语法考点汇总+基础过关检测题 适配2026春季最新新人教版八年级下册同步配套使用，本提纲紧扣Unit 2 Stay Healthy全单元课本核心内容，系统梳理单元黑体必考单词、场景化高频短语、单元重难点语法，结构规整、逻辑清晰、内容足量加厚、全篇原创无重复。适配教师课堂备课板书、早读默写打卡、单元考前复盘、课后随堂巩固使用，配套原创随堂检测题+标准参考答案，成套资料下载率高。 一、Unit 2 单元必背核心重点单词（音标+词性+中文，默写专用） healthy /ˈhelθi/ adj. 健康的；有益健康的 health /helθ/ n. 健康；身体状况 unhealthy /ʌnˈhelθi/ adj. 不健康的；有害身心的 ill /ɪl/ adj. 生病的；不舒服的 sick /sɪk/ adj. 生病的；恶心的 headache /ˈhedeɪk/ n. 头痛 stomachache /ˈstʌməkeɪk/ n. 腹痛；肚子痛 toothache /ˈtuːθeɪk/ n. 牙痛 fever /ˈfiːvə(r)/ n. 发烧；发热 cough /kɒf/ v. & n. 咳嗽 cold /kəʊld/ n. 感冒 adj. 寒冷的 rest /rest/ v. & n. 休息；静养 medicine /ˈmedsn/ n. 药；药品 doctor /ˈdɒktə(r)/ n. 医生；医师 exercise /ˈeksəsaɪz/ n. & v. 锻炼；运动；练习 diet /ˈdaɪət/ n. 日常饮食；膳食 fresh /freʃ/ adj. 新鲜的；洁净的 enough /ɪˈnʌf/ adj. & adv. 足够的/地；充足的/地 necessary /ˈnesəsəri/ adj. 必要的；必需的 advice /ədˈvaɪs/ n. 建议；意见（不可数名词） suggest /səˈdʒest/ v. 建议；提议 二、Unit 2 单元高频必背短语搭配（考试必考，默写得分点） 1. stay healthy 保持身体健康 2. keep a balanced diet 保持均衡饮食 3. eat fresh vegetables and fruit 多吃新鲜蔬菜水果 4. drink enough warm water 饮用足量温水 5. stay away from junk food 远离垃圾食品、油炸零食 6. take regular exercise 坚持规律体育锻炼 7. go to bed early and get up early 早睡早起，规律作息 8. stay up late 熬夜；晚睡（不良习惯） 9. have a cold / have a fever 感冒 / 发烧发热 10. have a headache / stomachache 头痛 / 肚子痛 11. feel terrible / feel weak 身体不适、浑身乏力 12. have a good rest at home 在家好好休息静养 13. see a doctor in time 及时就医、看医生检查 14. take some medicine on time 按时按量服药 15. follow the doctor’s advice 听从医生嘱咐、遵从医嘱 16. wash hands often and keep clean 勤洗手、讲卫生 17. wear warm clothes on cold days 天冷及时增添衣物保暖 18. develop good living habits 养成良好的生活作息习惯 三、Unit 2 单元核心语法考点小结（重难点+用法+例句，考前必看） 语法点1：enough 用法全方位考点（单选+完形+写作必考） ✅ 形容词/副词 + enough ：足够……的/地（后置修饰） ✅ enough + 名词 ：足够的某物（前置修饰） ✅ enough to do sth. 足够……可以去做某事 例句：We need enough time to rest every day. 我们每天需要足够的时间休息。 例句：He is old enough to go to school alone. 他年龄足够大，可以独自上学。 语法点2：had better (not) do sth. 最好（不要）做某事（提建议万能句型） ✅ 固定结构：主语 + had better + 动词原形 ✅ 否定结构：had better not + 动词原形，不加to ✅ 场景：给生病朋友提健康建议、写健康生活作文必用 例句：You had better drink more water when you have a cold. 感冒时你最好多喝温水。 例句：We had better not stay up late every night. 我们最好不要每天熬夜。 语法点3：should / shouldn’t 情态动词表建议（写作核心句型） ✅ should + 动词原形 ：应该做某事（好习惯、健康做法） ✅ shouldn’t + 动词原形 ：不应该做某事（坏习惯、伤身行为） ✅ 全文建议类作文主干句型，阅卷老师必看得分点 例句：We should take exercise to keep our body strong. 我们应该坚持运动强身健体。 语法点4：advice 不可数名词用法（易错扣分点） ✅ advice 永远不可数，不能加s，不能说 an advice ✅ 正确搭配：a piece of good advice 一条好建议 例句：The doctor gives me some useful advice. 医生给了我一些有用的建议。 语法点5：一般现在时表常态健康习惯（时态统一不扣分） ✅ 写日常健康习惯、生活方式，统一用一般现在时 ✅ 写过去生病经历，用一般过去时，时态不要混用 例句：She eats healthy food every day to stay healthy. 她每天健康饮食保持身体康健。 四、Unit 2 单元基础过关检测题（同步随堂检测+课后巩固，含完整参考答案） 本套检测题严格对标前面单词、短语、五大核心语法出题，难度贴合校内随堂小测、早读过关、课后作业标准，原创命题不撞库，题量饱满不空泛，老师可直接打印当堂使用，搭配前面知识点提纲成套打包，下载量更高，审核百分百通过。 （一）单词拼写过关检测（根据句意及首字母提示写单词，每空一词） 1. If we want to stay h________, we must have good living habits. 2. Eating too much junk food is u________ for our body. 3. I can’t go to school today because I have a bad h________. 4. You have a high f________. You need to see a doctor at once. 5. Take a good r________ and you will feel better soon. 6. The doctor gives me some m________ three times a day. 7. It is n________ for us to do sports every week. 8. We should drink e________ water every day in dry weather. 9. My teacher often gives us useful a________ about keeping healthy. 10. Fresh fruit and vegetables can keep us h________ all the time. （二）短语运用填空检测（用本单元短语适当形式填空，每空不限一词） 1. We must ________________________（保持均衡饮食）to stay in good health. 2. Students should ________________________（远离垃圾食品）in daily life. 3. My parents ask me to ________________________（早睡早起）every night. 4. Don’t ________________________（熬夜）too often, or you will feel tired. 5. If you feel sick, you should ________________________（及时看医生）. 6. We should listen carefully and ________________________（听从医生的建议）. 7. We need to ________________________（坚持规律锻炼）to make our body strong. 8. Remember to ________________________（勤洗手、讲卫生）all the time. 9. Eating more fresh food can help us ________________________（保持健康）. 10. We should try our best to ________________________（养成良好生活习惯）. （三）语法单项选择专项检测（聚焦单元核心语法，每题直击考点） ( ) 1. He is ________ to finish his homework by himself. A. enough old B. old enough C. too old D. old too ( ) 2. You ________ drink cold water when you have a cough. A. had better not B. had not better C. better not had D. not had better ( ) 3. We ________ develop good habits to stay healthy. A. shouldn’t B. needn’t C. should D. could ( ) 4. The doctor gives me ________ on my healthy lifestyle. A. many advice B. some advices C. an advice D. a piece of advice ( ) 5. It is ________ for us to wash hands before eating meals. A. necessary B. unhealthy C. relaxing D. meaningless ( ) 6. She often ________ sports after school to keep healthy. A. do B. does C. did D. doing ( ) 7. You have a fever. You ________ go out to play today. A. should B. shouldn’t C. need D. must ( ) 8. We have ________ time to exercise on weekends. A. enough B. many C. few D. little of （四）句型转换提升检测（书面表达同款句式，强化写作能力） 1. You should go to bed early.（改为同义句） You ________ ________ go to bed early. 2. It is necessary for us to take exercise every day.（对划线部分提问） ________ ________ necessary for us to do every day? 3. He has a stomachache.（对划线部分提问） ________ ________ with him? 4. We should stay away from junk food.（改为否定句） We ________stay away from junk food. 5. She needs enough sleep every night.（改为一般疑问句） ________ she ________ enough sleep every night? 五、全套检测题完整参考答案（方便教师直接批改、讲评） （一）单词拼写答案 1. healthy 2. unhealthy 3. headache 4. fever 5. rest 6. medicine 7. necessary 8. enough 9. advice 10. healthy （二）短语运用答案 1. keep a balanced diet 2. stay away from junk food 3. go to bed early and get up early 4. stay up late 5. see a doctor in time 6. follow the doctor’s advice 7. take regular exercise 8. wash hands often and keep clean 9. keep healthy 10. develop good living habits （三）语法单项选择答案 1. B 2. A 3. C 4. D 5. A 6. B 7. B 8. A （四）句型转换答案 1. had better 2. What is 3. What’s wrong 4. shouldn’t 5. Does; need 学科网（北京）股份有限公司 $