Unit3语法(need讲解与练习-2026-2027学年仁爱科普版英语八年级上册

该初中英语导学案聚焦“need”的完整用法，系统讲解其作为实义动词（含句型、否定、疑问及被动结构）和情态动词（否定、疑问及与must的问答）的核心知识点。课堂导入可衔接已学动词词性知识，通过对比表格和易混点解析搭建学习支架，帮助学生梳理前后知识脉络。 资料特色在于结合“Sound Body, Sound Mind”主题设计情境化练习，涵盖动词填空、单项选择等多种题型，强化语言能力。易错点汇总与对比分析培养思维品质，配套答案便于自主核对，提升学习能力，助力学生高效掌握语法重点并灵活运用。

Unit3 Sound Body,Sound Mind语法讲解与练习 need 的完整用法讲解 一、need 两大词性:实义动词&情态动词 用法 1:need 作实义动词(最常用,有人称、时态变化) 含义:需要 句型结构 1.need +名词 /代词 需要某物 I need enough sleep. 我需要充足睡眠。 2.need to do sth. 需要去做某事(主语主动发出动作) You need to exercise every day. 你需要每天锻炼。 3.don’t/doesn’t/didn’t need to do sth. 不必做……(否定形式) You don’t need to get up so early. 你不必起这么早。 4.need doing = need to be done 需要被……(被动含义,物作主语) The bike needs repairing. = The bike needs to be repaired. 这辆自行车需要修理。 疑问句:Do/Does/Did +主 + need (to do)...? Do you need to drink more water? 用法 2:need 作情态动词(多用于否定句、疑问句,无三单、不加 to) 含义:需要;必须 1.need +动词原形 You needn’t worry. 你不必担心。(= don’t need to worry) 2.否定:needn’t = need not 不必(语气弱,≠ mustn’t) ️ 重点区分 needn’t 不必(没有必要) mustn’t 禁止,不准 3.疑问句:Need +主语+动词原形? —Need I finish the running today? —Yes, you must. / No, you needn’t. ️ 核心易混对比(考试高频) 句子 词性 要点 He needs to rest. 实义动词 有人称变化,后接 to do He needn’t rest. 情态动词 无三单,直接加动词原形 He doesn’t need to rest. 实义动词否定 借助助动词,to 不能丢 拓展固定搭配 1.in need 在危难中;有需要 2.in need of … 需要…… Many students are in need of more outdoor sports. 二、中考必考问答(must 提问的回答) —Must I take exercise every day? 我必须每天锻炼吗? Yes, you must. No, you needn’t. / No, you don’t have to. No, you mustn’t.(错误!mustn’t 表禁止) 三、易错点汇总 1.主语是人:need to do(主动) 2.主语是物:need doing = need to be done(被动) 3.needn’t(情态动词)= don’t need to(实义动词),同义转换考点 4.need 作情态动词极少用于肯定陈述句,肯定句一般用实义动词 need to do 【配套拔高练习题】 一、用所给动词正确形式填空 1.I need _ (drink) more water after running. 2.You _ (not need) worry about my health. 3.The room needs _ (clean). 4.Does he need _ (take) a break? 5.You don’t need _ (stay) up late. 6.Need she _ (finish) the workout now? 7.The sports shoes need _ (mend). 8.We _ (need) enough sleep to keep healthy. 9.They needn’t _ (join) the morning running. 10.Your body needs _ (relax) after exercise. 11.This bike needs _ (repair). 12.Do we need _ (buy) new sports clothes? 13.She needs _ (not) go there alone. 14.You need _ (not) eat too much junk food. 15.The garden needs _ (water). 16.He needs _ (practice) running every morning. 17.—Need I follow the rules? —Yes, you _. 18.—Must I give up snacks? —No, you _. 19.You needn’t _ (run) so fast. 20.Kids are in need of _ (do) more outdoor activities. 二、单项选择 1.You _ finish the exercise now. You can do it tomorrow. A. needn’t B. mustn’t C. can’t D. shouldn’t 2.My body needs _ every day. A. exercise B. exercising C. to exercising D. exercised 3.The playground needs _. It’s too dirty. A. clean B. cleaning C. to clean D. cleaned 4.—Must I get up at 6:00 to exercise? —No, you _. A. mustn’t B. can’t C. needn’t D. shouldn’t 5.He _ to take a rest after the long race. A. need B. needs C. needing D. needed 6.You _ worry. I can keep a balanced diet. A. don’t need B. needn’t to C. needn’t D. aren’t need 7.Do we need _ warm clothes for outdoor sports? A. take B. taking C. to take D. takes 8.—Need I stop eating fried food? —Yes, you _. A. need B. must C. can D. should 9.The old basketball needs _. A. change B. to change C. changing D. changed 10.She _ stay at home. She can go hiking with us. A. doesn’t need B. needn’t to C. doesn’t need to D. isn’t need 11.People _ enough sleep to stay in good health. A. need having B. need to have C. needs have D. needs to having 12.You _ touch the equipment without instructions. It’s dangerous. A. needn’t B. mustn’t C. don’t need D. shouldn’t to 13.We are _ more time for sports. A. in need B. need to C. in need of D. need of 14.Tom doesn’t need _ early today. A. get up B. getting up C. to get up D. gets up 15.—Do you need _ with your training plan? —No, thanks. A. help B. helping C. to helping D. helped 三、句型转换 1.You need to rest for ten minutes.(改为否定句,实义动词) _ 2.You needn’t practice running today.(同义句,实义动词) _ 3.The gym needs cleaning.(同义句) _ 4.I need to drink plenty of water.(改为一般疑问句) _ 5.Must I finish the exercise?(否定回答) _ 6.Need she join the sports meeting?(否定回答) _ 7.He needs to keep exercising.(改为否定句,情态动词改写) _ 8.We need to go to bed before 11 p.m.(对划线部分提问) _ 9.You don’t need to give up your hobby.(同义句,情态动词) _ 10.The bike needs repairing.(同义句) _ 四、汉译英 1.我们需要均衡的饮食来保持健康。 _ 2.你不必每天长跑。 _ 3.窗户需要打扫。 _ 4.— 我必须戒掉垃圾食品吗?— 不必。 _ 5.他需要每天锻炼来增强体质。 _ 6.你不必担心他的体能。 _ 7.很多学生需要更多户外活动。 _ 8.这双运动鞋需要修补。 _ 9.你需要早睡早起。 _ 10.处于困境中的人需要我们的帮助。 _ keys 一、动词形式填空 1.to drink 2.needn’t 3.cleaning 4.to take 5.to stay 6.finish 7.mending 8.need 9.join 10.to relax 11.repairing 12.to buy 13.needn’t 14.don’t need to 15.watering 16.to practice 17.must 18.needn’t / don’t have to 19.run 20.doing 二、单项选择 1.A 2.A 3.B 4.C 5.B 6.C 7.C 8.B 9.C 10.C 11.B 12.B 13.C 14.C 15.A 三、句型转换 1.You don’t need to rest for ten minutes. 2.You don’t need to practice running today. 3.The gym needs to be cleaned. 4.Do you need to drink plenty of water? 5.No, you needn’t. / No, you don’t have to. 6.No, she needn’t. 7.He needn’t keep exercising. 8.What do you need to do before 11 p.m.? 9.You needn’t give up your hobby. 10.The bike needs to be repaired. 四、汉译英参考 1.We need a balanced diet to keep healthy. 2.You don’t need to run long distances every day. 3.The windows need cleaning. / The windows need to be cleaned. 4.—Must I give up junk food? —No, you needn’t. 5.He needs to exercise every day to build up his body. 6.You needn’t worry about his physical fitness. 7.Lots of students need more outdoor activities. 8.This pair of sports shoes needs mending. 9.You need to go to bed early and get up early. 10.People in need need our help. 2 / 2 学科网(北京)股份有限公司 $