Unit 8 Let’s communicate! 知识点讲练合集（词汇语法课文+课后练习）2025-2026学年人教版英语八年级上册

该初中英语单元复习讲义通过分类梳理与表格呈现构建“Let’s communicate!”主题知识体系，涵盖重点词汇（含中英文对照及变形）、if条件句语法规则、沟通场景短语（分Section A/B归纳）等，用表格清晰展示词汇词性转换（如communicate→communication）和短语结构（如prefer doing A to doing B），体现语言知识内在逻辑与重难点分布。 讲义亮点在于分层练习设计与核心素养融合，即时练聚焦词汇变形（如difficult→difficulty）和语法应用（if条件句单选），课后加练设完形填空、翻译等综合题型，培养语言运用与逻辑思维能力。提供错题分析与答题技巧（如肢体语言沟通策略），基础生可掌握基础词汇语法，优秀生能深化跨文化沟通理解，助力教师实施精准分层教学，支持学生自主复习提升学习能力。

Unit 8 Let’s communicate! 知识点讲练合集 1、 重点词汇 英文 中文 英文 中文 1. 面对面 11. local (adj.) 2. 发短信 12. professor (n.) 3. 领某人参观 13. argue(v.) 4. 与某人言归于好 14. prefer(v.) 5. 亲自；亲身 15. expression (n.) 6. 为某人担心 16.seriously (adv.) 7. 立刻；马上 17. nervous (adj.) 8. 给某人写信 18. continue (v.) 9. 对....表现出兴趣 19. reasonable (adj.) 10. 换话题 20. social (adj.) 重点词汇变形 1. communicate (v.)交流→ (n.) 交流 2. speak (v.)说 → (n.) 说话者；发言者 → (n.) 演讲 3. rehearse (v.)排练 → (n.) 排练 4. argue(v.) 争吵→ (n.) 争吵 5. worry (v.)担忧 → (adj.) 忧虑的；担忧的 6. express(v.)表达→ (n.) 表达；表达方式 7. meet (v.)遇见；使满足 → (n.) 会议 8. difficult (adj.)困难的→ (n.) 困难 9. detail (n.)细节→ (adj.) 详细的 10. serious(adj.)严肃的/认真的→ (n.) 严肃地/认真地 11. strange (adj.)奇怪的；陌生的 → (n.) 陌生人 12. care（v.)关心 → (adj.) 仔细/认真的→ (adv.) 仔细/认真地 → (adj.) 粗心的→ (adv.) 粗心地 13. listen (v.)听 → (n.) 听者；听众 14. sure (adj.)一定/确定的→ (adv.) 想必/必定/一定 15. polite (adj.)礼貌的→ (adv.) 礼貌地→ (n.) 礼貌 → (adj.) 不礼貌的→ (adv.) 不礼貌地 16. person (n.)个人 → (adj.) 个人的；私人的 17. sincere (adj.)真诚/真实的 → (adv.) 真诚地 18. reason (n.)原因 → (adj..) 合理的 19. society (n.)社会→ (adj.) 社会的 20. medium (n.)媒体；手段（adj.)中等的 → (复数pl) 媒体 21. understand (v.)理解→ (adj.) 善解人意的 → (v.) 误解 → (n.) 误解/误会 22. benefit (n.)益处（v.)对....有益→ (adj.) 有益处的 23. honour / honor (adj.)荣誉;(v.)给....荣誉 → (adj.) 可敬的；荣誉的; 值得尊敬的 24. open(v.)打开→ (adj.) 开篇的；开始的；（n.)开始 25. close (v.)关闭 → (adj.) 结尾的；结束的（n.)停止/关闭 *即时练* 1. This problem was too (difficulty), but the smart boy worked it out. 2. Liu Kai has (difficult) in remembering English words, but he never gives up learning English. 3. The main (speak) at the meeting will share the new policy. 4. I gave a (speak) about climate change at the school hall. 5. He took the test (serious) and got a good grade. 6. This painting is an (express) of his love for nature. 7. We are going to take part in a seven-day (train). 8. They made a (detail) plan and began to take action. 9. (meet) with the pen pal is a serious thing. It’s a good way to let a friend go together with you. 10. We are going to have a class (meet) tomorrow afternoon to discuss the school trip. 11. What happened to her? She seemed (worry). 12. I had an (argue) with my friend yesterday afternoon. 13. He is worried about (argue) with his best friend. 14. Sometimes it’s normal for friends (argue) over small things. 15. Good between friends can help solve many problems easily. (communicate) 16. They are (communication) with each other happily. 17. We need to improve our (communicate) skills to get along better with others. 18. After three hours of (rehearse), the band finally got the song right. 19. Amy is such a kind and (help) girl that I am lucky to have a friend like her. 20. We shouldn’t read others’ (person) letters without asking. 21. Matt writes as (careful) as his brother. 22. It’s quite (reason) for him to think so. 23. The official (open) of the new school will take place next month. 24. There was a big (misunderstand) between the two friends. 25. Please accept my (sincerely) greetings and congratulations. 26. Thank you for helping me so much (sincere). 27. I wrote a letter to Mr. Smith, and he (reply) to it a month later. 28. You can talk to me. I am always your good (listen). 29. I will repair my house myself instead of (pay) someone to do it. 30. It is to get enough sleep, as it helps with memory and concentration. (benefit) 31. It is so (polite) of you to shout at your mom. 32. Would you mind (open) the window? It’s a bit hot in the room. 33. The (open) speech at the school art festival was given by the headmaster. 34. The local bookstore announced its (close) last month. 35. You are (sure) tired after playing basketball for two hours. 36. How about (offer) some books to the children in poor areas? 37. Thanks to the Internet, young people have more (opportunity) to start their own business. 38. Don’t lend money to (strange) on the Internet. It’s dangerous. 39. Team sports help to develop a child’s skills. (society) 40. She is an (honesty) girl, so we all trust her. 2、 课文原文 Section B-1b课文 How to Make a Better Conversation Do you get nervous when you talk to someone? Do you find it hard to have a conversation with a stranger? If you have such worries, it is time for you to learn some more conversation skills. Here are some tips for making better conversations. 1. Listen carefully and show interest in others. One of the most important things is to listen to the person you speak to. If you are a good listener you will find some good points to ask questions about. For example, if someone tells you their hobby and you can ask questions about it, they will surely be happy to continue the conversation. 2. Choose the right topic. Some of the best topics might be the weather, sports, music, films, food, or travel. However, it is impolite to ask someone's age, weight, or other personal information. Also, if you don't agree with others, don't argue with them. Just move on to another topic. 3. Be honest and sincere. If you have no idea of a subject, just say "I don't know much about it. " If you want to make the other person happy, mention his or her strong points. But don't just pretend to be nice, because people can find out you are not telling the truth. 4. Pay attention to your body language. Sometimes it is just as important as your words. Don't be nervous. Stand up straight, smile, and be yourself——you have a lot to offer. If you really work at it. You will find having conversations much easier. 知识点整理： 和某人交谈 变得紧张 对.....感到紧张 发现做某事是困难的 是做某事的时候了（to do ) 是做某事的时候了(for) 沟通/交流技巧 展示对....的兴趣 一个好的倾听者 问问题 （一定）非常开心做某事 继续做某事（同一件事） 继续做某事（不同事） 选择做某事（v.) 做某事是不礼貌的 问别人年龄 私人/个人心思 同意某人 和某人争吵 转移到另一个话题 诚实且真诚 对某事一无所知 优点 假装做某事 弄清；查明（真相） 说实话 注意➕doing sth 肢体语言 做你自己；不做作 主动提出做某事 给某人提供某物（offer) 给某人提供某物（provide) 真地努力去做某事 Section B-3a课文 Minghua Middle School 10 December 20 Dear Professor Jones, We would like to invite you to give a speech at our Education Talk event. The event will take place at 9 a. m. On 10th January. If you are able to attend the event, we will cover all your travel and hotel costs. The event is an excellent opportunity for students, parents, and teachers to hear new opinions and ideas. If you can spare the time to give a speech on teenagers' communication skills, we are sure the students will benefit a lot from you. We are looking forward to your reply.If you have any special needs, please let us know. It would be a great honour to have you speak at our school. Yours sincerely, 知识点整理： 教授(n.) 专业的；职业的（adj.) 邀请某人做某事 发表演讲 活动；大事件（n.) 发生；举行 能够做某事 出席/参加这次活动 覆盖（v.) 封面（n.) 费用(n.) 可数名词+s 一次极好的机会 抽出时间做某事 青少年的交流/沟通技巧 某人从...中获益 期待➕doing sth 做某事会是极大的荣幸 3、 语法：if“如果”+ 条件状语从句 If you want to solve the problem, a face-to-face talk usually works the best. Texting can make things worse if you're not careful with your words. If the rehearsal ends at 7:00 p. M., I'll pick you up at 7:15 p. m. If you stay calm and say sorry, it will help. If I go there, I will try all the delicious local food. Work hard if you want to get good grades. · 主从句位置： · 易错常考： if表示“是否”时，具体情况具体分析 如：---What's your plan for tomorrow? --I don't know if it_____ _tomorrow. If it __________, I'll stay at home. A. will rain; rains B. will rain; will rain C. rains; will rain D. rains; rains *即时练* 1．—How will you spend this winter holiday? —If I ________ free, I ________ to Hainan with my family. A．will be; will go B．am; will go C．am; go D．will be; go 2．________ you listen to the teachers carefully in class, you will pass (通过) the exam. A．If B．Unless C．Although 3．If it __________ tomorrow, we __________ a picnic. A．doesn’t rain; will have B．won’t rain; have C．doesn’t rain; have D．won’t rain; will have 4．—Do you know when Amy will arrive in Nanchang? —Sorry, I don’t know. If she _________, I will give you a call. A．will arrive B．is arriving C．arrived D．arrives 5．—What’s your plan for tomorrow? —I don’t know if it ________ tomorrow. If it ________, I’ll stay at home. A． will rain; rains B．will rain; will rain C．rains; will rain D．rains; rains 二、单词拼写 6．If the training (start) earlier, our team (perform) better in the game. 7．If you (need) to leave right away, I (call) a taxi for you. 8．Promise me you (think) about the reunion seriously if you (come). 9．She (drop) me a line if she (have) difficulties in hearing the news. 10．If we (have) a face-to-face meeting, we (understand) each other better. 4、 短语归纳(反复读） Section A 知识点 1. face to face 面对面 a face to face talk 一次面对面交谈 2. send text messages 发短信 3. send emails 发电子邮件 4. make a video call 打视频电话 5. make a phone call 打电话 6. use sign language 使用手势语 7. on time 准时 8. pick sb up (开车）接某人；接电话；拾起捡起 9. show sb around 带某人四处逛逛；领某人参观 10. the delicious local food 当地的美食 11. take a break 休息一下/冷静一下 = have/take a rest 12. call sb = give sb a call 给某人打电话 13. give a speech / give speeches 发表演讲 14. argue with sb 和某人争吵 argue about/over sth 就某事争论 15. make up (with sb )（和某人）和好 ；编造（故事/谎言等） 16. the best way to do sth 做某事最好的方法 17. in this situation 在这种情况下 18. solve the problem 解决问题 19. in person 亲自 20. prefer sth 更喜欢某物 prefer doing sth 更喜欢做某事 prefer A to B 比起B，更喜欢A prefer doing A to doing B 比起做B，更喜欢做A prefer to do ... rather than do... 宁愿做....也不愿做... = would rather do ...than do..... 21. What if .... 要是...会怎么样；如果....将会怎样 22. be careful with 当心/小心 23. stay calm 保持冷静= keep calm calm down 平平静/镇定下来 24. Thanks for the advice ! 谢谢你的建议！ （advice 名词“建议”，不可数） （suggestions 名词“建议”，可数➕s) 25. worry about .... 担心= be worried about 26. talk on/over the phone 在电话中交谈 27. invite sb to do sth邀请某人做某事 28. make new friends 交新朋友 29. a good chance /opportunity 一个好机会 have a chance to do sth 有机会做某事 30. have problems/trouble/difficulties with sth 在某方面有困难 have problems/trouble/difficulties (in) doing sth 在做某事上有困难 have difficulties in hearing 听力不好 31. go jogging 去慢跑 32. ask sb to do ath 让某人做某事 33. go with sb 和....一起去 34. have a face-to-face meeting进行面对面会议 35. a piece of news 一则新闻（news 新闻，不可数） 36. reach sb by phone 电话联系某人 37. call a taxi叫出租车 38. right away 立刻；马上= at once 39. write down 写下 40. drop sb a line 给某人写封信；给某人发个信息 41. be serious about sth = take sth seriously 认真对待某事 think about sth seriously 认真考虑某事 42. the training plan 训练计划 43. It’s time to do sth 是做某事的时候了 = It’s time for doing sth 44. make a plan 制定计划 45. perform well 表现得好 perform better 表现得更好 46. What do you think of .... ? 你认为....怎么样？= How do you like .... ? Section B 知识点 1. meet sb for the first time 第一次遇见某人 2. make/have a conversation (with sb )（和某人）交谈 conversation skills 沟通技巧 teenagers’ communications skills 青少年的沟通技巧 3. be nervous about ... 对....感到紧张 get nervous变得紧张 4. 主语+find+ it +hard ➕ to do sth 某人发现做某事很困难（It做形式宾语，to do是真正宾语） e.g. I find it necessary to take notes in the English class. 我发现在英语课上记笔记是有必要的。 5. show interest in.... 对....表现出兴趣 (interest 名词“兴趣”） sb be interested in... 某人对....感兴趣 = sb have an interest in.... 6. listen to sb 倾听某人 a good listener 一个好的倾听者 7. speak to sb 和某人说话 8. continue the conversation 继续交谈 continue doing sth 继续做某事（同一件事） continue to do sth 继续做某事（不同事） 9. choose to do sth 选择做某事 （choose动词“选择”） make a choice 做选择 （choice 名词“选择”） 10. the right topic 正确的话题 11. It is impolite to do sth 做某事是不礼貌的 12. personal information个人信息;私人信息 13. move on (to sth) 换话题；开始做别的事 move on to another topic 转移到另一个话题 14. Be honest and sincere 诚实且真诚 15. have no idea of sth 对某物一无所知 16. strong points 优点 17. pretend to do sth 假装做某事 18. find out 弄清；查明（真相/事实） 19. tell the truth 说实话 （truth 名词“真相”） 20. pay attention to 注意➕ doing sth 21. body language 肢体语言 22. as important as 和....一样重要 23. Don't be nervous. Stand up straight, smile, and be yourself——you have a lot to offer. 不要紧张。站直，微笑，做你自己——你有很多优点（offer动词“提供”） 24. be yourself 做你自己；行为自然；不做作 help oneself (to sth )请自便 25. offer to do sth 主动提出做某事 offer sb sth =offer sth to sb（双宾结构） 提供某人某物 provide sb with sth = provide sth for sb 提供某人某物 26. sb really work at sth 某人真的努力去做某事 27. according to 根据 28. play an important part in ...在....中发挥重要作用 29. keep a friendship 维持一段友谊 30. make time for each other 为彼此腾出时间 31. in a kind, friendly way 以一种亲切、友好的方式 32. book the seats 预订座位 book the ticket 订票 33. be sure about/of.... 对....确信 34. social media 社交媒体 35. instead of 而不是➕名词/动名词doing sth 36. in person亲自；面对面交流 in-person communication面对面沟通 37. keep away from 远离 38. take place 发生；举行 39. be able to ➕ do sth 能够做某事 = can ➕ do sth 40. attend the event 参加这次活动 attend the meeting 参加会议 attend the speech 参加/出席演讲 41. spare the time to do sth 抽出时间做某事（spare动词“抽出”） spare time 空闲时间（spare形容词“空闲的”） 42. sb benefit a lot (from sb/sth ) (从.....)某人获益很多 sth benefit sb 某物使某人受益 43. look forward to 期待➕名词/动名词doing 44. It would be great honour to do sth 做某事会是极大的荣幸 45. the opening and closing sentences 开头句和结尾句 46. point 名词“观点”= opinion = view point 名词“得分；点；要点”have a point 有道理；have no point 没道理 point 动词“指”point at 指着；point to 指向；point out 指出 47. agree with sb 同意某人（的看法/观点/意见） agree on sth 在某事上达成共识 agree to do sth 同意做某事 48. 四大金“花”： 1 sb spend +时间/钱+ on sth sb spend +时间/钱+ (in) doing sth 2 sb pay +钱 + for sth （pay和for 连用） 3 sth cost sb + 钱（物做主语） 4 it takes/took sb +时间/钱+to do sth (take和it连用，to do 做真正主语） 49. go for a picnic 去野炊 5、 课后加练 · Monday 推荐用时：10min 正确率： 1．________ you do your homework, ________ mistakes you will make. A．The more careful; the less B．The more carefully; the less C．The more careful; the fewer D．The more carefully; the fewer 2．When people do ________, they can take it ________. A．interesting something; serious B．something interesting; seriously C．anything interesting; careful D．something interested; carefully 3．I didn’t ask him for any help, but to my surprise, he ________ a helping hand to me in time. A．gave B．showed C．offered D．provided 4．I’m not good at English. I always feel ________ before the exam. A．pleased B．fair C．nervous D．unfair 5．Don’t post your ________ information online, like your address or phone number. A．personal B．public C．interesting D．important 6．After _________ the truth about his past, she decided to forgive him. A．running into B．finding out C．staying up late D．expressing herself 7．According to a report, raising a child in the city ________ a family about HK $5.5 million from a child’s birth to college graduation. A．spends B．costs C．takes D．pays 8．Mount Huangshan, Hongcun Village and Chaohu Lake are all good choices you want to travel in Anhui. A．unless B．before C．if D．although 9．—Did you hear of Zhang Guimei, Role Model of the Times (时代楷模)? —Yes. She ________ lots of help to the girl students in poor areas. A．borrows B．offers C．attends D．provides 10．He doesn’t do his homework ________, so he always makes some mistakes. A．careful enough B．enough careful C．carefully enough D．enough carefully 11．Tom doesn’t study ________ his classmates, so he often fails in the exams. A．as careful as B．as carefully as C．as careless as D．as carelessly as 12．It’s important to keep ________ when you are in a dangerous situation. A．calm B．calmness C．calmly D．calmer 13．We should ________ the traffic rules when we cross the road. A．pay attention to B．take pride in C．look forward to D．get used to 14．My neighbor often ________ to help me with my English when I have problems. A．offers B．argues C．divides D．returns 15．After having a short rest, they plan to ________ their journey to the mountain. A．stop B．end C．continue D．finish · Tuesday 推荐用时：10min 正确率： 16．It’s ________ to interrupt others while they are speaking. A．polite B．impolite C．sincere D．reasonable 17．Our school’s annual sports ________ will attract students from many schools. A．cost B．reply C．event D．opportunity 18．She ________ thanked her friends for their help during the difficult time. A．sincerely B．suddenly C．quickly D．easily 19．The total ________ of the trip includes tickets and accommodation. A．opportunity B．cost C．reply D．event 20．The ________ of the new library is scheduled for next month. A．event B．cost C．opening D．closing 21．It’s a great ________ to meet the famous writer at the book fair. A．cost B．opportunity C．event D．date 22．Students can ________ this online course to improve their English. A．hear from B．benefit from C．come from D．learn from 23．The art exhibition will ________ next Sunday in the city museum. A．take place B．take off C．take up D．take away 24．The story should include ________ five sentences. A．at last B．at least C．at most D．at first 25．She ________ reading books at home to going shopping with her friends. A．prefers B．likes C．loves D．enjoys 26．The ________ gave an inspiring speech on how to improve our communication skills. A．speaker B．professor C．teacher D．student 27．If you can’t meet your friend ________, you can give him a call. A．in person B．in fact C．in public D．in time 28．—I had a fight with my best friend. What should I do? —You should ________ with him and say sorry. A．make up B．make out C．make of D．make for 29．—How much does a railway ticket ________ from Tianjin to Beijing? —About 80 yuan. It ________ you about half an hour to get there. A．take; pays B．cost; takes C．pay; costs D．pay; takes 30．The Browns often ______ food to homeless people and _____ books for the children in need. A．provide; give B．provide; offer C．offer; give D．offer; provide · Wednesday 推荐用时：10min 正确率： 31．We shouldn’t read others’ (person) letters without asking. 32．Stephen is looking forward to (meet) his new friend David from Australia. 33．This painting is an (express) of his love for nature. 34．I think his words are (reason). 35．I think the best way is (tell) the truth to him. 36．Her (ill) made her unable to go to school. 37．Please tell me the (true). 38．Thomas Edison is a great (invent). 39．The (wait) in the restaurant are very polite. 40．The (write) of this book is very famous. 41．I don’t know if he (understand) my real meaning in the conversation tomorrow. 42．We should take online friends (serious). 43．They made a (detail) plan and began to take action. 44．Please give Tom the book if he (come) back to see you. 45．Work hard and you (do) better next time. 46．When the sun sets, it (get) dark. 47．Bob went out for a walk to calm himself down after a big with his wife. (argue) 48．She prefers (text) her friends rather than call them. 49．You should take an exam as (careful) as you can. 50．She (buy) a new dress if she has enough money. · Thursday 推荐用时：10min 正确率： 51．如果我们坚持我们的目标，总有一天我们会成功的。 If we our goals, we will succeed one day. 52．如果你不同意别人 (的想法)，不要和他们争论。仅仅转移到另一个话题。 If you don’t agree with others, don’t argue with them. Just another topic. 53．是时候给陈教授写封信慰问一下了。 It’s time to Professor Chen to greet him. 54．为了保持友谊，你们需要为彼此腾出时间并且在意你朋友的情绪。 To keep a friendship, you need to each other and care about your friend’s feelings. 55．如果我有好消息，我会立刻给你打电话。 I will call you if I have good news. 56．如果你在措辞上不小心，发短信可能会让事情变得更糟。 Texting can make things worse if you your words. 57．科学家们总是努力关注每一个细节。 Scientists always try to every detail. 58．如果你可以抽出时间做一个关于青少年交流技巧的演讲，我们确信学生们将会从你那里受益颇多。 If you can spare the time to give a speech on teenagers’ , we are sure the students will benefit a lot from you. 59．如果你能参加我们的教育报告公开活动，我们将会报销你所有的差旅费用。 If you attend our Education Talk event, we will cover all your travel and hotel . 60．今天许多人通过短信和社交媒体交流，而不是面对面。 Many people today communicate by and rather than face to face. 61．这是我的堂弟第一次参观北京，所以我主动提出带他参观。 It was my cousin’s first time visiting Beijing, so I offered to . 62．不要假装好心，因为人们会弄清楚你没在说实话。 Don’t pretend to be nice, because people can you are not . 63．最重要的事情之一是倾听和你说话的那个人。 One of the most important things is to the person you speak to. 64．她和最好的朋友在吵架后和好了。 She her best friend after the quarrel. 65．我们在公共场合应该举止得体。 We should behave well . 66．如果排练在晚上7点结束，我会在7点15分来接你。 If the rehearsal ends at 7:00 p.m.,  I’ll at 7:15 p.m. 67．她在九十岁还亲自演讲呼吁大家保护动物和环境。 At the age of 90, she still gave talks to call on people to protect animals and the environment. 68．我想告诉你关于我们队伍的训练计划。 I want to tell you about the for our team. 69．警察最终查明了小女孩失踪的原因。 The police the reason why the little girl was lost in the end. 70．为了成为一名更好的学习者，我们老师经常提醒我们要注意在课堂上记笔记。 To become better learners, our teacher often reminds us to pay attention to in class. · Friday 推荐用时：10min 正确率： There is a big difference between knowing a country from social media and experiencing it in person. This is what students from the US and China discovered during an eight-day exchange. From March 24 to 31, a group of 15 students from the US went on an educational and cultural 71 in China. For 15-year-old Justin, this was his first trip abroad. He felt nervous before leaving home. “I was 72 about everything—new people, strange food and how to adapt to (适应) 73 situations,” he said. But things went better than he expected. In Beijing, he tried douzhi. Drinking it is a 74 even for locals. Surprisingly, he finished three bowls! Justin also loved Chinese students. At first, he worried he might feel 75 , but Chinese students were very friendly. The learning was two-sided. Liu Haoyang, a 15-year-old student in Beijing, was Justin’s homestay partner. Liu used to think US students were calling for 76 and didn’t care about study. But Justin 77 Liu Haoyang’s thinking—Justin did very well in study. “He taught me how to deal with difficult situations, and I 78 Chinese and tai chi to him,” Liu said. With technology and media developing quickly, teenagers can get information about other countries online 79 . But online stories are just a small part of real cultural exchange. “If I hadn’t come, I’d never know how kind Chinese students are,” said Justin. This trip even changed Justin’s plans. “I used to want to be a maths teacher in the US. Now I hope to teach English in China!” he said. Through this tour, Chinese and US students learnt more about each other and 80 the beauty of different cultures. 71．A．exchange B．honeymoon C．interview D．shock 72．A．strict B．doubtful C．angry D．anxious 73．A．simple B．common C．unfamiliar D．peaceful 74．A．promise B．task C．challenge D．dream 75．A．independent B．lonely C．confused D．grateful 76．A．knowledge B．love C．wealth D．freedom 77．A．developed B．changed C．continued D．invented 78．A．taught B．learnt C．spoke D．played 79．A．easily B．slowly C．difficultly D．dangerously 80．A．avoided B．imagined C．expected D．experienced 学科网（北京）股份有限公司19 学科网（北京）股份有限公司 $