Unit 2 Amazing Numbers-单词讲解课件2026-2027学年沪教版英语八年级上册

该初中英语课件围绕Unit 2核心词汇展开，系统讲解20个重点单词的音标、词性、词形变化、搭配及练习，通过词汇列表导入，以词形转化和固定搭配为支架构建前后知识联系，帮助学生逐步掌握词汇用法。 其亮点在于对每个词汇进行多维度解析，如challenge的词形变化（challenging）、reply与answer的辨析练习，结合语言能力培养（搭配应用）和思维品质提升（辨析分析），采用讲练结合的学科特色方法，助力学生系统掌握词汇，教师可直接用于课堂教学以提高效率。

Unit 2 Amazing Numbers • 单词讲解 Vocabulary flight /flaɪt/ n.（尤指乘飞机的）航程 schedule /ˈʃedjuːl/ n. 日程安排 everywhere /ˈevriweə(r)/ adv. 到处；各个地方 challenge /ˈtʃælɪndʒ/ v. 向（某人）挑战 prize /praɪz/ n. 奖赏；奖励 promise /ˈprɒmɪs/ v. 承诺；保证 chessboard /ˈtʃesbɔːd/ n. 国际象棋棋盘 silver /ˈsɪlvə(r)/ n. 银 reply /rɪˈplaɪ/ v. 回复；答复 hesitation /ˌhezɪˈteɪʃn/ n. 犹豫 wonder /ˈwʌndə(r)/ v. 想知道；琢磨 agree /əˈɡriː/ v. 同意；赞成 currently /ˈkʌrəntli/ adv. 目前；当前 check /tʃek/ v. 检查；核查 budget /ˈbʌdʒɪt/ n. 预算 province /ˈprɒvɪns/ n. 省份 sharply /ˈʃɑːpli/ adv. 急剧地；突然大幅度地 count /kaʊnt/ v. 计算（或清点）总数 system /ˈsɪstəm/ n. 系统 symbol /ˈsɪmbl/ n. 符号；记号 represent /ˌreprɪˈzent/ v. 代表 exactly /ɪɡˈzæktli/ adv. 准确地；确切地 Vocabulary per cent /pə: sent/ n. 百分之... flight schedule 航班时刻表 price tag 价格标签 for a moment 片刻；一会儿 without hesitation 毫不犹豫 go up 上升 go down 下降 write down 写下；记下 instead of 代替；作为...........的替换 01.flight /flaɪt/ n.航班；航程；飞行 fly v. 飞；乘坐飞机（过去式 flew，过去分词 flown） 词形变化 搭配 a direct flight 直飞航班 take a flight 搭乘航班 catch a flight 赶上航班 miss a flight 误机 on the flight 在航班上；在飞行途中 用 flight 的正确形式填空 1. We booked a ____ (flight) to Hong Kong. 2. They ____ (fly) to Japan last summer. 3. Hurry up, or you will miss the ______ (fly). practice flight flew flight 02. schedule /'ʃedjuːl/ n. 计划表；日程表；时间表 v. 安排；预定 scheduled adj. 预定的；按计划的 词形变化 搭配 📌 schedule（名词） on schedule 按时，准时 ahead of schedule 提前 behind schedule 落后于计划，延期 📌 schedule（动词） schedule a meeting 安排会议 be scheduled to do sth 预定做某事（高频考点） be scheduled for + 时间 定于……（时间） practice 用 schedule 的正确形式填空 1. The plane is __________to leave at noon. 2. We finished the work ahead of ________ . 3. They ___________a trip next month. scheduled schedule schedule 03.everywhere /ˈevriweə(r)/ adv. 到处；处处；所有地方 搭配 look everywhere 到处找 travel everywhere 去各地旅行 everywhere + 从句（无论哪里） 例句 他骑车到处跑 He goes everywhere by bike. 无论我走到哪里，都能看见花。Everywhere I go, I see flowers. 04.Prize /praɪz/ n. 奖品；奖金；奖赏；adj. 获奖的；一流的 win a prize 获奖（最常考） get a prize 得到奖品 win first prize（无冠词） 搭配 05.challenge /ˈtʃælɪndʒ/ n. 挑战；难题 v. 向……挑战；质疑 challenging adj. 有挑战性的（高频!） challenged adj. 受到挑战的 face/meet a challenge 面对/迎接挑战 take on a challenge接受挑战 a challenge to sth对……的挑战 challenge sb to sth 向某人挑战某事 challenge sb to do sth 挑战某人做某事 词形变化 搭配 1. This is a _____________ (challenge) task for most students. 2. We must be brave enough to face the ________ (challenge). 3. He challenged me ________ (play) basketball. practice challenging challenge to play 06.promise /ˈprɒmɪs/ n. 诺言；希望，前景 v. 承诺；答应；预示 promising adj. 有希望的，前景光明的（高频！） promise sth 许诺某事 promise to do sth 答应做某事（最高频） 注意！！promise sb to do ❌ promise sb sth = promise sth to sb 向某人许诺某物 make/keep/break a promise 许下/信守/违背承诺 a promising future 光明的前景 词形变化 搭配 1. He promised _____________ (return) my book soon. 2. Never break your _____________ (promise). 3. She is a ___________ (promise) young artist. practice to return promising promise 07.reply /rɪˈplaɪ/ v. 回复，答复 n. 回答，答复 词形变化 搭配 过去式/过去分词 replied；复数 replies reply to sb / sth 回复某人 / 答复某事（必考！to不能丢） in reply to … 作为对……的答复（写作高频短语） 辨析：reply vs answer answer：及物，可直接接宾语 answer the question/phone reply：不及物，必须加 to：reply to the question，更加正式，多用于书信、邮件 practice 1. You should reply ________ him as soon as possible. 2. I am writing in reply ________ your invitation. 3. He ________ (reply) that he couldn’t come. to to replied 08.hesitation/ˌhezɪˈteɪʃn/ n. 犹豫，迟疑 hesitate v. 犹豫，迟疑 hesitant adj. 犹豫的，迟疑的 without hesitation 毫不犹豫（写作超级高频） with hesitation 犹豫不决地 have hesitation in doing sth 做某事有所犹豫 hesitate to do sth 犹豫/不情愿做某事 hesitate about/over sth 对……犹豫不决 词形变化 搭配 practice 1. He agreed to help us ________ hesitation. 2. Don’t hesitate ________ (ask) me for help. 3. I have no hesitation in ________ (accept) your suggestion. without to ask accepting 09.wonder /ˈwʌndə(r)/ v. 想知道；感到诧异 n. 奇迹；奇观，惊奇 wonderful adj. 极好的，绝妙的 wonderfully adv. 极好地 wonder + if/whether 想知道……是否 wonder about sth 对……感到好奇 no wonder (that) … 难怪…… in wonder 惊奇地(wonderfully) 词形变化 搭配 1. No wonder ________ he is upset. He failed the exam. 2. When I came to Maldives,I saw some___________(wonder) views. 3. They wondered ________ his strange behaviour. practice that wonderful about 10.agree/əˈɡriː/v. 同意；赞成；达成一致 agreement n. 协议；同意 disagree v. 不同意 disagreement n. 分歧 词形变化 agree with + 人 / 观点 agree to/on + 计划、提议 reach an agreement 达成协议 搭配 1. I don’t agree ________ what he said. 2. They agreed ________ (meet) at the gate. 3. Both sides have reached an ________ since the project was put forward.(agree) practice with to meet agreement 11.currently/ˈkʌrəntli/ adv.目前 词形变化 current adj. 当前的；现在的 n. 水流，电流 currency n.货币 1. ________ (current), many teenagers like short‑video apps. 2. The museum is ________ (current) closed for repair. practice currently Currently 12.check /tʃek/ v. 检查；核对；查看；登记入住 n. 检查；账单；支票 搭配 check in （酒店）办理入住；（机场）值机 check out 结账退房；核实 a safety check 安全检查 13.budget /ˈbʌdʒɪt/n. 预算；经费 v. 规划开支 搭配 on a budget 预算有限，手头紧 within budget 在预算内 over budget 超出预算 cut the budget 削减预算 1.We are travelling ______ a budget.（on） 2. The building project is ______ budget,because it costs too much. practice on over 14.sharply /ˈʃɑːpli/ adv. 急剧地；严厉地 sharp (adj. 锋利的/急剧的) sharpness (n. 锋利/急剧) rise/increase sharply (急剧上升) fall/drop sharply (急剧下降) 1. The temperature dropped ______ after the sunset. (急剧地) 2. The number of students has risen ______ this year. (大幅地) 3. He was ______ criticized for breaking the rules. (严厉地) 搭配 词形变化 practice sharply sharply sharply · 15. count /kaʊnt/ v. 数数；重要；指望 n. 计数 countable (adj. 可数的)；uncountable (adj. 不可数的) countless adj.无数的 词形变化 count sth (清点) count on sb (依靠/指望) 搭配 ⚠考点：熟词生义是重点！count = matter (重要)； 短语 count on 为高频考点。 practice 1. Please ______ the books before you leave the library. 2. When you are in trouble, you can count ______ your family. 3. In this competition, every single point ______. count on counts 16. system /ˈsɪstəm/ n. 系统；体系；制度 systematic (adj.) 系统的；有条理的 solar system (太阳系) education system (教育体系) 1.. The ______ consists of the sun and all the planets around it. 2. The school is trying to reform its education ______. 3.翻译题：学校提供了新的电脑系统给我们。 _________________________________________________________ 搭配 词形变化 practice system system The school has provided us with a new computer system. 17. symbol /ˈsɪmbl/ n. 象征；符号；标志 symbolic (adj.) 象征的；symbolize (v.) 象征 a symbol of ... (…的象征) / national symbol (国家象征) 1. The red rose is a ______ of love and passion. 2. The Olympic rings are ________of unity among nations. 3. 翻译题：龙是中国权力与力量的象征。 词形变化 搭配 practice symbol symbolic The dragon is a symbol of power and strength in China. 18. represent /ˌreprɪˈzent/ v. 代表；象征；描绘 记忆链条：re（重复，再次）+present（呈现） representative n.代表 adj.典型的 representation (代表) 1. The stars ___________different groups in the sky. 2. These vivid paintings __________ the daily life of farmers. 3.翻译题：她将代表我校参加全国竞赛。 搭配 词形变化 practice represent sth/sb (象征/代表) represent represent 1)She will represent our school at the national competition. 2)She will be a representative of our school to take part in the national competition. 19. exactly /ɪɡˈzæktli/ adv. 正好；恰好；完全地 exact adj. 准确的；精确的 1. The two coats look ______ the same, but one is cheaper. (正好) 2. It is ______ three o’clock when the bell rings. (恰好) 词形变化 practice exactly exactly 20.instead of代替；而不是 1. instead of + 名词 / 代词 I will take this book instead of that one. 2. instead of + 动名词(doing)【高频！】 instead of doing sth 而不是做某事 搭配 Practice： 1. Learning a new language can be ________ (challenge), but it is also very rewarding. 2. The young actor has a ________ (promise) future ahead of him. 3. If you have any questions, don't ________ (hesitation) to ask me. 4. We had a ________ (wonder) time visiting the Great Wall last week. 5. After a long discussion, the two sides finally reached an ________ (agree). 6. You need to keep up with the ________ (currently) trends if you want to succeed in this industry. 7. There are ________ (count) stars in the night sky. 8. We need to take a ________ (system) approach to solve this complex problem. 9. In many cultures, the dove is a ________ (symbol) of peace. 10. You'd better ________ (sharply) your pencil; it's too blunt to write with. challenging promising hesitate wonderful agreement current countless systematic symbol sharpen Thanks for learning null Blues 89182.93 $