Unit 2 Stay Healthy 单元重点词汇变形100题- 2025-2026学年人教版八年级下册英语

答案解析 一、根据中文提示写出单词的正确形式 1. abroad；解析：固定搭配 go abroad，表 “出国”，abroad 为副词，无复数形式。 2. preferred；解析：根据从句的 offered（过去式）可知主句用一般过去时，prefer 的过去式为 preferred。 3. admired；解析：根据破折号后 was 可知句子用一般过去时，admire 的过去式为 admired。 4. to press；解析：固定搭配 remember to do sth.，表 “记得去做某事（未做）”，此处指记得按红色按钮，动作未发生。 5. pain；解析：a sharp 后接可数名词单数，pain 表 “（身体的）疼痛” 时为可数名词，用原形。 6. toothache；解析：固定搭配 a bad toothache，表 “严重的牙痛”，为固定短语。 7. X-ray；解析：chest X-ray 为固定搭配，表 “胸部 X 光片”，X-ray 的单数形式即可。 8. avoid；解析：情态动词 should 后接动词原形。 9. careless；解析：固定句型 It’s+adj.+of sb. to do sth.，表 “某人做某事是…… 的”，“粗心的” 用 careless（careful 为细心的，反义词）。 10. dentist；解析：定冠词 the 后接名词，根据谓语 recommended 可知用单数 dentist（牙医）。 11. fever；解析：固定搭配 have a fever，表 “发烧”，为固定短语。 12. extinguisher；解析：固定短语 fire extinguisher，表 “灭火器”，由 the 可知用单数形式。 13. injury；解析：an 后接以元音音素开头的可数名词单数，injury 表 “受伤，伤口”，符合要求。 14. aid；解析：固定短语 first aid，表 “急救”，为固定搭配，无复数形式。 15. mask；解析：a 后接可数名词单数，“戴口罩” 为 wear a mask，用原形。 16. allergic；解析：固定搭配 be allergic to，表 “对…… 过敏”，用形容词 allergic 作表语。 17. flames；解析：由系动词 were 可知主语为复数，flame（火焰）的复数形式为 flames。 18. panic；解析：固定搭配 in a panic，表 “惊慌失措地”，为固定短语。 19. virus；解析：the flu virus 为固定搭配，表 “流感病毒”，virus 为可数名词，此处表单数概念用原形。 20. never forget；解析：情态动词 would 后接动词原形，“永远不会忘记” 用 never forget。 21. felt tight；解析：and 连接并列谓语，前半句 felt 为过去式，故此处也用一般过去时，feel tight 表 “感觉发紧”，feel 的过去式为 felt。 22. take better care of myself；解析：will 后接动词原形，take care of oneself 表 “照顾自己”，“更好地” 用 better 修饰，主语为 I，反身代词用 myself。 23. cough；解析：when 引导的时间状语从句，主句为祈使句，从句用一般现在时，主语 you 后接动词原形 cough。 24. runny；解析：修饰名词 nose 用形容词，“流鼻涕的” 用 runny，runny nose 为固定搭配。 25. nosebleed；解析：a 后接可数名词单数，have a nosebleed 表 “流鼻血”，为固定短语。 26. back；解析：形容词性物主代词 her 后接名词，“背” 用 back，in one’s back 表 “在某人的背上”。 27. headache；解析：固定搭配 cause sb. a headache，表 “让某人心烦 / 头痛”，a 后接单数 headache。 28. stomachache；解析：a bad 后接可数名词单数，have a stomachache 表 “胃痛”，为固定短语。 29. ourselves；解析：固定搭配 by oneself，表 “独自”，主语为 we，反身代词用 ourselves。 30. hiking；解析：固定搭配 go hiking，表 “去远足”，为固定短语。 31. patient；解析：由系动词 is 可知主语为单数，patient 表 “病人”，用原形即可。 32. is testing；解析：根据 right now（此刻）可知用现在进行时，主语 the nurse 为第三人称单数，故为 is testing。 33. medicine；解析：some 后接不可数名词或可数名词复数，medicine 表 “药” 时为不可数名词，用原形。 34. pill；解析：a 后接可数名词单数，take a pill 表 “吃一片药”，用原形 pill。 35. harmful；解析：固定搭配 be harmful to，表 “对…… 有害”，用形容词 harmful 作表语。 二、用括号内单词的正确形式填空 1. threw；解析：根据 but 后的 missed（过去式）可知句子用一般过去时，throw 的过去式为 threw。 2. To protect；解析：用动词不定式作目的状语，表 “为了保护眼睛免受太阳伤害”，句首首字母大写。 3. strength；解析：定冠词 the 后接名词，strong 的名词形式为 strength（力量），为不可数名词。 4. forks；解析：and 连接并列名词，plates 和 spoons 均为复数，故 fork 也用复数形式 forks。 5. lying；解析：根据 was 和 enjoying 可知用过去进行时，lie 表 “躺” 时的现在分词为 lying。 6. spreading；解析：固定搭配 prevent…from doing sth.，表 “阻止…… 做某事”，from 后接动名词 spreading。 7. patient’s；解析：修饰名词 temperature 用名词所有格，表 “病人的体温”，由 the 可知为单数病人，故为 patient’s。 8. traditional；解析：修饰名词 Chinese food 用形容词，tradition 的形容词形式为 traditional（传统的）。 9. natural；解析：固定句型 It’s+adj.+to do sth.，nature 的形容词形式为 natural（自然的，正常的）。 10. activities；解析：more 后接可数名词复数，active 的名词形式为 activity，复数为 activities，physical activities 表 “体育活动”。 11. explanation；解析：a clear 后接可数名词单数，explain 的名词形式为 explanation（解释）。 12. avoids；解析：根据 always 可知用一般现在时，主语 she 为第三人称单数，故谓语动词用 avoids。 13. married；解析：固定搭配 get married，表 “结婚”，为固定短语，married 为形容词。 14. businesses；解析：small 后接名词，run a business 表 “做生意”，many 后接可数名词复数，business 的复数为 businesses。 15. has lived；解析：根据 for over 50 years（超过 50 年）可知用现在完成时，主语 Mr. Chen 为第三人称单数，故为 has lived。 16. late；解析：固定搭配 stay up late，表 “熬夜”，late 为副词，用原形。 17. healthy；解析：修饰名词 food 用形容词，health 的形容词形式为 healthy（健康的）。 18. twice；解析：表 “一天两次” 用 twice，为频度副词，two 的序数词变形。 19. eating；解析：固定搭配 stop doing sth.，表 “停止做某事（正在做的事）”，此处指停止吃垃圾食品，用 eating。 20. to wash；解析：固定搭配 remember to do sth.，表 “记得去做某事（未做）”，饭前洗手的动作未发生，用 to wash。 21. To stay；解析：用动词不定式作目的状语，表 “为了保持健康”，句首首字母大写。 22. exercising；解析：固定搭配 spend time (in) doing sth.，表 “花费时间做某事”，in 可省略，故用 exercising。 23. worse；解析：much 后接形容词比较级，表 “…… 得多”，bad 的比较级为 worse，指让油火更严重。 24. heating；解析：固定搭配 leave sth. doing sth.，表 “让某物一直处于某种状态”，此处指让油一直在炉子上加热，用 heating。 25. painful；解析：系动词 be 后接形容词作表语，pain 的形容词形式为 painful（疼痛的）。 26. clearly；解析：修饰动词 tell 用副词，clear 的副词形式为 clearly（清楚地）。 27. brightness；解析：修饰名词 screen 用名词所有格，此处指屏幕亮度，bright 的名词形式为 brightness（亮度），不可数。 28. knives；解析：play with 后接可数名词复数表泛指，knife 的复数形式为 knives（变 fe 为 v 加 es）。 29. allergic；解析：固定搭配 be allergic to，表 “对…… 过敏”，用形容词 allergic 作表语。 30. nervously；解析：修饰动词 waited 用副词，nervous 的副词形式为 nervously（紧张地）。 31. bleeding；解析：根据 was 和句意可知用过去进行时，表 “手臂正在大量流血”，bleed 的现在分词为 bleeding。 32. shocked；解析：系动词 were 后接形容词作表语，形容人 “感到震惊的” 用 shocked（shocking 形容事物令人震惊）。 33. suffered；解析：and 连接并列谓语，前半句 had 为过去式，故此处也用一般过去时，suffer 的过去式为 suffered。 34. runny；解析：修饰名词 nose 用形容词，run 的形容词形式为 runny（流鼻涕的），runny nose 为固定搭配。 35. patiently；解析：修饰动词 Wait 用副词，patient 的副词形式为 patiently（耐心地）。 三、根据首字母提示完成句子 1. hurt；解析：根据后句 was 可知用一般过去时，结合 “熬夜后头痛” 和首字母 h，填 hurt（疼痛），过去式与原形一致。 2. harmful；解析：固定搭配 it’s harmful to do sth.，表 “做某事是有害的”，结合 “玩火” 和首字母 h，填 harmful。 3. awareness；解析：health awareness event 表 “健康宣传活动”，结合首字母 a，填 awareness（意识，认知），不可数名词。 4. burn；解析：get a burn 表 “烫伤”，结合 “热水烫到” 和首字母 b，填 burn，a 后接单数。 5. cut；解析：get a cut 表 “割伤”，结合 “切菜时手受伤” 和首字母 c，填 cut，a 后接单数。 6. promptly；解析：修饰动词 deal with 用副词，结合 “防止健康问题恶化” 和首字母 p，填 promptly（及时地，迅速地）。 7. allergy；解析：a food allergy 表 “食物过敏”，结合 “导致皮疹或呼吸困难” 和首字母 a，填 allergy，a 后接单数。 8. protect；解析：固定搭配 need to do sth. 和 protect…from…，表 “需要保护眼睛免受电子屏幕伤害”，填 protect 原形。 9. check；解析：情态动词 should 后接动词原形，结合 “吃之前看食材” 和首字母 c，填 check（检查）。 10. allergic；解析：固定搭配 be allergic to，表 “对…… 过敏”，结合 “不能吃含花生的食物” 和首字母 a，填 allergic。 11. wound；解析：定冠词 the 后接名词，结合 “医生清理伤口” 和首字母 w，填 wound（伤口），表特指用单数。 12. injure；解析：固定搭配 be careful not to do sth.，表 “小心不要做某事”，结合 “做运动时” 和首字母 i，填 injure（使受伤）原形。 13. relief；解析：固定搭配 feel great relief，表 “感到如释重负”，结合 “妈妈病不严重” 和首字母 r，填 relief（宽慰），不可数名词。 14. protection；解析：固定搭配 for the protection of，表 “为了保护……”，结合 “戴手套保护手” 和首字母 p，填 protection（保护），不可数名词。 15. bandage；解析：a 后接可数名词单数，结合 “护士给男孩的割伤手指缠绷带” 和首字母 b，填 bandage（绷带）。 16. pale；解析：固定搭配 turn pale，表 “脸色发白”，结合 “事故后害怕” 和首字母 p，填 pale（苍白的）。 17. medical；解析：修饰名词 help 用形容词，medical help 表 “医疗救助”，结合 “事故后尽快” 和首字母 m，填 medical（医疗的）。 18. follow；解析：情态动词 must 后接动词原形，follow the doctor’s advice 表 “遵医嘱”，结合首字母 f，填 follow。 19. necessary；解析：固定句型 it’s necessary to do sth.，表 “做某事是必要的”，结合 “勤洗手防疾病” 和首字母 n，填 necessary（必要的）。 20. cold；解析：固定搭配 catch a cold，表 “感冒”，结合 “冬天气温突变” 和首字母 c，填 cold。 21. immune；解析：immune system 为固定搭配，表 “免疫系统”，结合 “规律运动不易生病” 和首字母 i，填 immune（免疫的）。 22. balanced；解析：修饰名词 diet 用形容词，a balanced diet 表 “均衡的饮食”，结合 “多吃蔬菜” 和首字母 b，填 balanced（均衡的）。 23. choices；解析：many 后接可数名词复数，结合 “酒店从便宜到贵有很多选择” 和首字母 c，填 choices（选择）。 24. exploring；解析：介词 by 后接动名词，结合 “走小街发现可爱商店” 和首字母 e，填 exploring（探索，逛）。 25. lifestyle；解析：a healthy 后接可数名词单数，a healthy lifestyle 表 “健康的生活方式”，结合 “早睡早起” 和首字母 l，填 lifestyle。 26. eating；解析：a good eating habit 表 “良好的饮食习惯”，动名词 eating 作定语修饰 habit，结合首字母 e，填 eating。 27. caught；解析：根据 last week 可知用一般过去时，catch a bad cold 表 “重感冒”，catch 的过去式为 caught。 28. Peanut；解析：结合 “很多零食的常见配料” 和首字母 P，填 Peanut（花生），此处表泛指用单数，首字母大写。 29. safety；解析：形容词性物主代词 your 后接名词，for one’s own safety 表 “为了某人自身的安全”，结合 “系安全带” 和首字母 s，填 safety（安全）。 30. aid；解析：send aid to 表 “向…… 提供援助”，aid 表 “援助” 时为不可数名词，结合 “政府向贫困地区” 和首字母 a，填 aid。 学科网（北京）股份有限公司 $ 人教版（2024）八年级下册Unit 2单元重点词汇变形100题 1、 根据中文提示写出单词的正确形式。 1．Last year, she had the chance to go ________ (国外) to taste different cultures. 2．Most travellers ________ (较喜欢) this small guest house because it offered warm service and a great view of the nearby mountain. 3．I ________ (钦佩) the local villagers for keeping their traditional dances alive—watching their performance was the best part of my trip. 4．To start the machine, remember ________ this red button hard.（按下） 5．After running five miles, he felt a sharp ________ (疼痛) in his legs. 6．She couldn’t sleep because of a bad ________ (牙痛). 7．During the chest (胸部) ________ (X射线), the doctor asked the patient to hold their breath for a few seconds 8．To stay healthy, you should ________ (避免) ‌eating‌ too much junk food. 9．It was very ________ (粗心的)‌ of him to leave the door unlocked when he left the house. 10．The ________ (牙医) recommended that I floss my teeth every day to keep them healthy. 11．When you have a ________ (发烧), your body temperature rises above normal. 12．Allen ran to get the fire ________ (灭火器) and put out the fire. 13．Be careful, or you may get an ________ (受伤). 14．Thanks to the first ________ (急救) classes, Allen knew what to do. 15．Please wear a ________ (口罩) when you go out. 16．Mark is ________ (过敏的) to peanuts. 17．The pan was on fire! Large ________（火焰）were jumping into the air. 18．In a ________ (惊慌), James turned off the stove at once. 19．The flu ________(病毒) can spread easily. 20．It was a day he would ________ ________ (永远不会忘记). 21．Mark’s face felt warm and his throat ________ ________ (感觉发紧). 22．Mark promised, “I’ll ________ ________ ________ ________ __________ (更好地照顾自己) from now on.” 23．Please cover your mouth when you ________ (咳嗽)‌. 24．The doctor said your ________ (流鼻涕的)‌ nose and cough are signs of a mild infection (感染). 25．If you have a ________ (鼻出血), it’s important to sit down and pinch your nose gently. 26．She lifted the heavy box and suddenly felt a sharp pain in her ________ (背). 27．Stress and lack of sleep often cause her a ________ (头痛)‌, so she tries to rest early. 28．I stayed home from school because I had a bad ________ (胃痛)‌. 29．We did the science project all by ________ (我们自己). No one helped us. 30．My cousin plans to go ________ (远足) in the mountain this weekend. 31．The ________ (病人) is waiting for the doctor in the room. 32．The nurse ________ (测验) the blood pressure (血压) of the old man right now. 33．My mum bought some ________ (药) from the pharmacy to treat my cough. 34．My mum took a ______ (药丸) for her headache and then rested on the sofa. 35．Too much time playing computer games is ______ (有害) to your eyes and health. 二、用括号内单词的正确形式填空。 1．He ______ (throw) the ball to his friend, but he missed it. 2．________ (protect) your eyes from the sun, you should wear sunglasses in summer. 3．The ________ (strong) of the wind increased during the night, blowing down some trees. 4．Please put the plates, spoons and ________ (fork) on the table before the guests arrive. 5．The dog was ________ under the tree, enjoying the shade. (lie) 6．We must prevent the flu from _________ (spread) in our school. 7．The nurse checked the _________ (patient) temperature and found it was normal. 8．My grandfather believes that _________ (tradition) Chinese food is healthier than fast food. 9．It is _________ (nature) to feel tired after working for ten hours without a break. 10．To keep fit, we should do more physical _________ (active) like running or swimming. 11．The doctor gave a clear ________ (explain) of how the virus spreads. 12．My sister is rather shy. She always _______ looking at others’ eyes when talking with them. (avoid) 13．My uncle and aunt, who love traditional architecture, got ________ (marry) in a small hall inside a classical garden last year. 14．Many local people used to run small ________ (busy) near the entrance of the classical garden, selling handmade souvenirs like paper-cuts. 15．Mr. Chen ________ (live) there for over 50 years, so we went to interview him. 16．My brother often stays up ________ (late), so he is very tired. 17．You should eat more ________ (health) food to keep fit. 18．You should brush your teeth ________ (two) a day. 19．You’d better stop ________ (eat) junk food. It’s bad for you. 20．Remember ________ (wash) your hands before meals. 21．________ (stay) healthy, you need to have enough sleep. 22．I spend two hours ________ (exercise) every week. 23．Allen didn’t use water because he knew it could make the oil fire much ________ (bad). 24．If you leave oil ________ (heat) on the stove alone, it might catch fire easily. 25．The dentist told me not to eat hard food, because my teeth would be ________ (pain) after the treatment. 26．You should tell your parents ________ (clear) that you don’t feel well, instead of keeping it to yourself. 27．When you use a computer at night, lower the screen ________ (bright) to protect your eyes. 28．The teacher told us not to play with ________ (knife) when we learn to cut vegetables in class. 29．She is ________ to cats, so she can’t have a pet cat. (allergy) 30．He waited ________ for the exam results. (nervous) 31．His arm was ________ badly, so we called an ambulance immediately. (bleed) 32．The news was really shocking; we were all ________. (shock) 33．Kate had a terrible illness and _______ a lot. Her mother helped her through the hard time. (suffer) 34．When you catch a cold, you may get a ________ (run) nose and a sore throat. 35．Rome wasn’t built in a day. Wait _______, and you will succeed. (patient) 三、根据首字母提示完成句子。 1．My head h________ a lot after I stayed up late last night. It was really painful. 2．It’s h________ to play with fire, so we must stay away from it. 3．The school is holding a health a________ event to teach students about safety. 4．If you get a b________ from hot water, you should put it under cool water. 5．I got a c________ on my hand when I was cutting vegetables. 6．It’s important to deal with health problems p______ to stop them from getting worse. 7．A food a______ can cause a rash or difficulty breathing. 8．We need to p______ our eyes from digital screens. 9．You should c________ the ingredients of any food before you eat it. 10．Mark is a________ to peanuts, so he can’t eat any food with peanuts in it. 11．The doctor cleaned the w________ and told me not to touch it for a week. 12．Be careful not to i______ yourself when you do sports. 13．He felt great r________ when he knew his mother’s illness was not serious. 14．We need to wear gloves for the p________ of our hands when working. 15．The nurse put a b________ on the boy’s cut finger carefully. 16．The driver’s face turned p______ with fear after the accident. 17．It’s important to get m________ help as soon as possible after an accident. 18．You must f________ the doctor’s advice if you want to get better soon. 19．It’s n________ to wash hands often to prevent illnesses. 20．In winter, many people catch a c________ because of the sudden change in temperature. 21．Regular exercise can improve your i________ system so that you won’t get sick easily. 22．Eating too much junk food is bad for your health. You should have a b________ diet with more vegetables. 23．When travelling here, you have many c________ of hotels, from cheap ones to expensive ones. 24．By e________ the small streets, you can find many cute shops that tourists love most. 25．You should go to bed early and get up early. It’s a healthy l_________. 26．It’s important to have a good e_________ habit. Don’t eat too late. 27．I c________ a bad cold last week and missed the school trip. 28．P________ is a common ingredient in many snacks. 29．For your own s________, please wear your seat belt. 30．The government sent a________ to the poor area. 学科网（北京）股份有限公司 $