人教版2024初中英语八下Unit 2 单元语法练习 含答案

这是一份人教版2024初中英语八下Unit 2 单元语法练习 含答案，共5页。
人教版8下第二单元语法专练情态动词should，could 和反身动词1. 情态动词 should 表义务/建议：意为“应该”，用于提出建议或强调责任。You should see a doctor. 表推测：表示合乎逻辑的预期，意为“按理应该”。The movie should be good. 表虚拟（Should + do）：在表示建议、要求等的名词从句中，should可省略。I suggested that he （should） go.2. 情态动词 could 表过去能力：can的过去式。I could run fast when I was young. 表现在/将来可能：语气比may/might委婉。It could rain later. 表委婉请求：比can更礼貌。Could you lend me a hand？ 表虚拟（Could have done）：表示过去本可以做而没做。I could have passed the exam.3. 核心区别 建议：should（应该）> could（可以，语气更委婉） 推测：should（按理应当）> could（有可能） 时态：could可用于过去时，should通常不视为过去式4. 反身代词 构成： 第一人称：myself, ourselves 第二人称：yourself, yourselves 第三人称：himself, herself, itself, themselves 核心用法： 1. 作宾语：动作返回主语自身。Be careful not to cut yourself. 2. 作同位语（强调）：意为“亲自”或“本人”。I myself did it.3. 固定搭配：by oneself, enjoy oneself, help oneself to, look after oneself等。固定搭配动词 + 反身代词enjoy oneself 玩得开心，过得愉快help oneself to 随便吃/用……behave oneself 表现得体，守规矩teach oneself 自学dress oneself 自己穿衣wash oneself 自己洗澡/洗脸look after oneself 照顾自己take care of oneself 照顾自己hurt oneself 伤到自己cut oneself 割伤自己burn oneself 烫伤自己introduce oneself 自我介绍express oneself 表达自己pride oneself on 以……为傲devote oneself to 致力于，献身于apply oneself to 专心于，致力于adapt oneself to 使自己适应adjust oneself to 调整自己以适应blame oneself 责备自己control oneself 控制自己calm oneself 使自己冷静prepare oneself 做好准备repeat oneself 重复自己说的话remind oneself 提醒自己convince oneself 说服自己force oneself 强迫自己persuade oneself 说服自己promise oneself 暗自承诺ask oneself 自问tell oneself 告诉自己say to oneself 心里想talk to oneself 自言自语speak to oneself 自言自语come to oneself 苏醒过来find oneself 发现自己处于（某情况）seat oneself 就座make oneself at home 不要拘束，随便一点make oneself heard 让别人听到自己的声音make oneself understood 让别人理解自己的意思介词 + 反身代词by oneself 独自地，单独地for oneself 为自己；亲自of oneself 自动地in oneself 本身，本质上to oneself 暗自；独享between ourselves 私下说说among themselves 他们之间all by oneself 独自一人，独立地in spite of oneself 不由自主地其他常用搭配not be oneself 状态不好，身体不适keep oneself to oneself 不与人来往，独处be full of oneself 只顾自己beside oneself 发狂，忘形keep sth. to oneself 保守秘密；不与人分享have sth. to oneself 独享某物二、练习题Part 1：单项选择1. You’ve been working all day. You ___ be very tired. A. could B. should C. must2. ___ you help me lift this box？ It‘s too heavy. A. Could B. Should C. May3. The children are old enough to look after ___. A. themselves B. themself C. theirselves4. I ___ have bought that dress. It was such a good price！ A. should B. could C. shouldn’t5. —Who repaired the bike for you？ —No one. I repaired it all by ___. A. me B. myself C. I6. You ___ smoke here. It's a gas station！ A. couldn‘t B. shouldn’t C. needn‘t7. She is very shy. She ___ speak in front of the class. A. could B. should C. couldn’t8. He fell off the bike but luckily he didn‘t hurt ___ much. A. him B. his C. himself9. We ___ hurry. We’ve got plenty of time. A. mustn‘t B. shouldn’t C. needn‘t10. The window is broken. We ___ play football so close to it. A. shouldn’t have B. could have C. must havePart 2：用 should， could 或反身代词的正确形式填空1. You look pale. You __________ go to the hospital.2. __________ I use your phone？ Mine is dead.3. She is only three， but she can dress __________.4. He __________ pass the exam easily if he studies hard.5. You __________ have told me you were coming！ I waited for hours.6. The robot can clean the house by __________.7. They enjoyed __________ at the party last night.8. You __________ be more careful next time.9. I __________ swim when I was five years old.10. Don‘t worry. I’ll do it __________.Part 3：完成句子1. 你应该每天喝足够的水。 You __________ drink enough water every day.2. 孩子们正在玩得很开心。 The children are enjoying __________.3. 他本可以通过考试，但他太粗心了。 He __________ passed the exam， but he was too careless.4. 请随便吃点鱼。 Please help __________ to some fish.5. 我们昨晚不可能迷路，因为我们有地图。 We __________ have gotten lost last night， because we had a map.Part 4：句型转换1. I suggested that he should see a doctor. （改为同义句） I suggested that he __________ a doctor.2. It is possible that she will come late. （用情态动词改写） She __________ come late.3. I can‘t do it alone. （改为反身代词强调句） I can’t do it __________.Part 5：句子改错1. He wanted to do it hisself. __________________________________2. You could to finish your homework first. __________________________________3. The girl is too young to look after herself. （判断对错） __________________________________4. We should went home earlier. __________________________________5. They can‘t do it by themselves. （判断对错） __________________________________三、参考答案与解析Part 11. B （工作一整天，按理说“应该”很累，表推测。）2. A （请求帮助，用could更委婉。）3. A （children复数，反身代词用themselves。）4. B （“could have bought”表示本可以买，但没买。）5. B （by myself 独自地。）6. B （加油站吸烟是“不应该”的强烈建议。）7. C （过去“不能”在班级前讲话，表示能力缺乏。）8. C （hurt himself 伤到他“自己”。）9. C （时间充裕，所以“不必”匆忙。）10. A （“shouldn't have done”表示本不该做却做了。）Part 21. should （提出强烈建议。）2. Could （请求许可，更委婉。）3. herself （dress oneself 自己穿衣服。）4. could （表可能性。）5. should （“should have done”表示本应该做而没做，带有责备。）6. itself （by itself 独自地，指机器人。）7. themselves （enjoy oneself 玩得开心。）8. should （提出建议。）9. could （过去的能力。）10. myself （强调“我自己”做。）Part 31. should2. themselves3. could have4. yourself/yourselves5. couldn‘t have （“couldn’t have done”表示过去不可能发生。）Part 41. see （在suggest等动词后的宾语从句中，should常省略，直接用动词原形。）2. could （用情态动词表示可能性。）3. by myself （用反身代词表达“独自地”。）Part 51. hisself 改为 himself （没有hisself这种形式。）2. could to finish 改为 could finish （情态动词后跟动词原形。）3. 正确 （look after oneself 照顾自己。）4. went 改为 go （情态动词should后跟动词原形。）5. 正确 （by themselves 独自地。）