Unit 3 Keep Fit 考点易错及练习 2025-2026学年人教版七年级下册英语

Unit 3 Keep Fit 考点易错及练习 一、易错点与考点梳理 考点1：频率副词的正确使用 易错点：学生容易混淆频率副词的位置（实义动词前、be动词/情态动词后），且对频率副词的程度差异掌握不熟练。 • 正确用法： ◦ 常见频率副词（按频率从高到低）：usually（通常）、often（经常）、hardly ever（几乎不）、never（从不）。 ◦ 位置规则：放在实义动词之前，be动词（am/is/are）、情态动词（should/can等）之后。 ◦ 例句：She usually exercises in the morning.（实义动词前）；He is hardly ever late for school.（be动词后）；We should often eat vegetables.（情态动词后） 考点2：health与healthy的辨析 易错点：混淆两者的词性和用法，误用为“keep health”“healthy food is good for our healthy”。 • 正确用法： ◦ health（名词，意为“健康”），常用搭配：keep health、be good for one’s health。 ◦ healthy（形容词，意为“健康的”），常用搭配：keep healthy、a healthy diet、healthy food。 ◦ 例句：Eating a balanced diet is good for our health.（名词）；We should keep healthy by exercising.（形容词） 考点3：hard与hardly的辨析 易错点：混淆两者的词义，误将hardly理解为“努力地”，或将hard理解为“几乎不”。 • 正确用法： ◦ hard（副词，意为“努力地”；形容词，意为“坚硬的”），常用搭配：work hard、study hard。 ◦ hardly（副词，意为“几乎不”），表否定含义，常用搭配：hardly ever、hardly eat junk food。 ◦ 例句：He works hard every day.（努力地）；She hardly ever stays up late.（几乎不） 考点4：情态动词should/shouldn’t的用法 易错点：should/shouldn’t后接动词-ing形式，或误用为“should to do”。 • 正确用法： ◦ should（应该）、shouldn’t（不应该）后接动词原形，用于给出建议。 ◦ 例句：You should exercise every day.（正确）；You shouldn’t stay up late.（正确）；You should exercising more.（错误） 考点5：动词短语的固定搭配 易错点：混淆健康相关动词短语的搭配，如“encourage sb. do sth.”“by do sth.”等错误表达。 • 正确用法： ◦ encourage sb. to do sth.（鼓励某人做某事） ◦ by doing sth.（通过做某事） ◦ keep fit = keep healthy（保持健康） ◦ stay up late（熬夜） ◦ a balanced diet（均衡饮食） 考点6：一般现在时的主谓一致 易错点：第三人称单数作主语时，动词未变三单形式（如exercise→exercises、eat→eats）。 • 正确用法： ◦ 当主语是第三人称单数（he、she、it、单数名词、不可数名词）时，实义动词需加-s/-es。 ◦ 例句：He exercises three times a week.（正确）；She eat a balanced diet every day.（错误，eat→eats） 考点7：物主代词的用法 易错点：混淆形容词性物主代词（her、his）与名词性物主代词（hers、his）的用法。 • 正确用法： ◦ 形容词性物主代词（her、his）后接名词，如her book、his bag。 ◦ 名词性物主代词（hers、his）后不接名词，相当于“形容词性物主代词+名词”。 ◦ 例句：This bag is not mine. It’s hers.（hers = her bag）；His book is on the desk.（his后接名词book） 二、易错题专项复习 一、单项选择 1. —______ do you exercise a week? —I exercise twice a week. A. How long B. How often C. How many D. How much 2. Eating more vegetables is good for our ______. A. health B. healthy C. tired D. energetic 3. He ______ ever stays up late, so he is very healthy. A. hard B. hardly C. often D. usually 4. You ______ eat too much junk food. It’s bad for your health. A. should B. shouldn’t C. can D. must 5. My mother ______ a balanced diet every day. A. eat B. eats C. eating D. to eat 6. —What do you do to keep fit? —I keep fit by ______ every morning. A. exercise B. exercises C. exercising D. to exercise 7. This book is not his. It’s ______. A. her B. hers C. she D. him 8. Our teacher encourages us ______ more every day. A. exercise B. exercises C. to exercise D. exercising 二、用所给词的适当形式填空 1. She usually ______ (exercise) after school.（exercise） 2. Eating a balanced diet is good for our ______ (health).（health） 3. We can keep fit by ______ (run) every morning.（run） 4. Our teacher encourages us ______ (eat) more vegetables.（eat） 5. He ______ (hard) ever eats junk food, so he is very healthy.（hard） 6. My father ______ (usually) gets up early and exercises.（usually） 7. This bag is not mine. It’s ______ (her).（her） 8. You shouldn’t ______ (stay) up late.（stay） 三、句型转换 1. He exercises three times a week.（对划线部分提问） ______ ______ ______ he exercise a week? 2. You should eat a balanced diet.（改为否定句） You ______ ______ a balanced diet. 3. She usually exercises after school.（改为一般疑问句） ______ she usually ______ after school? 4. We keep fit by exercising every day.（对划线部分提问） ______ ______ you keep fit every day? 5. Eating a balanced diet is good for our health.（改为同义句） Eating a balanced diet is good for ______ ______. 四、改错（每句有一处错误） 1. He is usually exercise in the morning. 2. We should to eat more vegetables. 3. This book is not my. It’s hers. 4. She hardly ever stay up late. 5. We can keep healthy by exercise every day. 五、阅读理解 Keeping fit is important for everyone. It can help us keep physical and mental health. How can we keep fit? Here are some good ways. First, we should exercise every day. I usually exercise for 20 minutes every morning. Second, we need to eat a balanced diet. We should eat plenty of vegetables and fruit, and we shouldn’t eat too much junk food. Third, we shouldn’t stay up late. We should go to bed early and get up early. Finally, we should keep a happy mood. When we feel tired, we can listen to music to relax. Following these ways, we can keep fit and happy. 1. What is the main idea of the passage? A. How to keep fit B. How to eat well C. How to exercise D. How to relax 2. How long does the writer exercise every morning? A. 10 minutes B. 20 minutes C. 30 minutes D. 40 minutes 3. What should we do to keep a balanced diet? A. Eat too much junk food B. Eat plenty of vegetables and fruit C. Stay up late D. Exercise every day 4. How can we relax when we feel tired? A. By exercising B. By eating junk food C. By listening to music D. By staying up late 参考答案 一、单项选择 1. B 2. A 3. B 4. B 5. B 6. C 7. B 8. C 二、用所给词的适当形式填空 1. exercises 2. health 3. running 4. to eat 5. hardly 6. usually 7. hers 8. stay 三、句型转换 1. How often does 2. shouldn’t eat 3. Does; exercise 4. How do 5. our bodies 四、改错 1. 去掉is（或exercise改为exercises） 2. 去掉to 3. my改为mine 4. stay改为stays 5. exercise改为exercising 五、阅读理解 1. A 2. B 3. B 4. C 学科网（北京）股份有限公司 $