Unit 2 Amazing numbers 课时2 阅读（课时学案）-【宝典训练】2025-2026学年新教材八年级上册英语高效课堂教学课件（沪教版2024）

该初中英语课件围绕Unit2“Amazing numbers”阅读课，聚焦there be句型、if条件句、enough和instead用法等核心语法点，通过古印度国王与智者的故事导入，结合语境教练、适境演练等支架，衔接语法讲解与阅读实践，帮助学生构建知识脉络。 其特色在于以语境教学法整合语法与阅读，通过重点句子讲解、课文语法填空及阅读理解（如数字系统发展），提升学生语言能力与思维品质。练习设计从基础到综合，教师可直接使用，学生能在应用中巩固知识，高效提升英语技能。

天骄出品 必属精品 深圳天骄文化传播有公司 宝典训练 配套教学课件 高效课堂 课件使用说明 本课件需用office2010及以上版本打开，如果您的电脑是office2007及以下版本，可能会出现不可编辑的文档，建议您安装office2010及以上版本。 01 本课件显示比例为16:9，如您的电脑显示器分辨率为4:3，课件显示效果可能比较差，建议您将电脑显示器分辨率更改为16:9。 win 10:右击桌面--选择“显示设置”--点选要显示PPT的屏幕--设置该屏幕分辨率为16:9。 win7、win8(8.1):右击桌面一-选择“屏幕分辨率”--选择要显示PPT的屏幕--设置该屏幕分辨率为16:9。 02 如果您在使用课件的时候,有问题可联系天骄文化售后客服,我们将竭诚为您服务。 03 目录、返回目录均设有超链接，点击即可跳转至相应的页面。 04 课时2　阅读 Unit2　Amazing numbers 目录 CONTENTS 1 课时精讲 2 课时过关 【课时精讲】 1. （1）is/was （2）are/were 2. （1）is （2）If you know the answer 3. （1）Wouldn’t you like （2）instead 4. （1）There isn’t enough milk in the fridge. （2）The room is big enough for ten people. （3）He didn’t run fast enough to win the race. is/was are/were is If you know the answer Wouldn’t you like instead There isn’t enough milk in the fridge. The room is big enough for ten people. He didn’t run fast enough to win the race. 课时精讲 课时过关 返回 目录 一、1.study　hard　enough　　　　 2. sitting under the tree 3. isn’t light enough 4. If you practice every day can improve 5. without hesitation study　hard　enough　　　　 sitting under the tree isn’t light enough If you practice every day can improve without hesitation 【课时过关】 课时精讲 课时过关 返回 目录 二、1.lived　　　 2.Playing 3.to 4. to give 5.if 6.third 7. the 8.Finally 9.what 10. However lived　　　 Playing to to give if third the Finally what However 三、第一节　1—5　DCBCD　　第二节　1—5　AEFBC DCBCD　　 AEFBC 课时精讲 课时过关 返回 目录 重点句子讲解。 1. A long time ago， there was a king in India. 很久以前，在 印度有位国王。 “There be…” 表示人或物的存在。注意be动词的数和最相 邻的名词保持一致，即“就近原则”，时态变化体现在be动 词上。 There is a boy and many books in the room. ＝ There are many books and a boy in the room. 房间里有一个男孩和很多书。 课时精讲 课时过关 返回 目录 （1）There a game between the king and the old man. 国王和老人之间有一场比赛。 （2）There a lot of people watching the game in the palace. 有很多人在宫殿里观看比赛。 is/was 　 are/were 　 课时精讲 课时过关 返回 目录 2. You can have any prize if you win the game. 如果你赢得比 赛，你可以得到任何奖赏。 （1）在此句中，if是连词，引导条件状语从句，表示提出的假 设可能成为现实。if引导的条件状语从句既可以放在主句前 面，也可以放在主句后面。if引导的条件状语从句位于主句之 前时，常用逗号与主句隔开；位于主句之后时，无需用逗号隔 开。其主从句谓语时态变化主要有以下三种情况： 课时精讲 课时过关 返回 目录 主句 从句 示例 一般将 来时 一般现 在时 If you study hard， you will go to a good university in the future. 如果你努力学习，你将来能上一个好大学。 含有情 态动 词的句 子 一般现 在时 If you want to keep healthy， you should take more physical exercises. 如果你想保持健康，应该多做体育锻炼。 课时精讲 课时过关 返回 目录 主句 从句 示例 祈使句 一般现 在时 Please stay at home if the wind blows hard. 如果风刮得太猛，请待在家里。 （2）win the game/match 比赛获胜　win a prize/an award 获奖　　 beat sb. 战胜某人 课时精讲 课时过关 返回 目录 （1）If it （be） fine tomorrow， our team will play with the team from No.2 Middle School. （2） ， please put up your hand. 如果你知道答案，请举手。 is 　 If you know the answer　 课时精讲 课时过关 返回 目录 3. Wouldn’t you like gold or silver instead？ 难道你不想要金 或者银代替（米）吗？ （1）“Wouldn’t you like…？”意为“难道你不想……？”， 表示客气地建议。 Wouldn’t you like a cup of tea？ 难道你不想要一杯茶吗？ 课时精讲 课时过关 返回 目录 （2）instead 代替；反而 　instead of （doing） sth. 代替 （做）…… 原句可以改为：Wouldn’t you like gold or silver instead of rice？ If you can’t go， I’ll go instead. ＝ I’ll go instead of you if you can’t go. 如果你不能去，我就替你去。 课时精讲 课时过关 返回 目录 （1） to go with me？ 难道你不想和我一起去吗？ （2）He’d like to stay at home of going out for dinner. 他宁愿待在家里，也不出去吃饭。 Wouldn’t 　 you 　 like 　 instead　 课时精讲 课时过关 返回 目录 4. After a few squares， the king realized the problem—even with all the rice in the country， he would still not have enough rice to put on the chessboard！ 走过几个方块后，国王意识到了问题——即使将全国的米都弄 来，他也没有足够的大米填满棋盘！ enough意为“足够（的）”，作为形容词修饰名词时可放在 名词前或后；但作为副词修饰动词、形容词、副词时，须放 在其后。 课时精讲 课时过关 返回 目录 （1）He has enough money to send his children to study abroad. ＝ He is rich enough to send his children to study abroad. 他有足 够的钱送孩子们去留学。 （2）I didn’t train enough for the game. 对于这次比赛我训练得 不够。 （3）He ran quickly enough to catch the thief. 他跑得足够快， 抓住了小偷。 课时精讲 课时过关 返回 目录 翻译句子。 （1）冰箱里的牛奶不够了。 ⁠ （2）这个房间足够大，能容纳十个人。 ⁠ （3）他跑得不够快，没能赢得比赛。 ⁠ There isn’t enough milk in the fridge. The room is big enough for ten people. He didn’t run fast enough to win the race. 课时精讲 课时过关 返回 目录 根据汉语意思完成句子，每空一词。 1. If you ， you won’t fail the exam. 如果你学习足够努力，就不会考试不及格。 2. There was an old man ⁠. 有一位老人坐在树下。 study　 hard　 enough　 sitting　 under　 the 　 tree　 课时精讲 课时过关 返回 目录 3. The box for a child to carry. 这个盒子不够轻，小孩搬不动。 4. ， you your English quickly. 如果你每天练习，就能快速提高英语水平。 5. He accepted the difficult challenge ， but his friend refused. 他毫不犹豫地接受了艰难的挑战，而他的朋友却拒绝了。 isn’t　 light　 enough　 If　 you　 practice　 every　 day　 can　 improve　 without　 hesitation　 课时精讲 课时过关 返回 目录 课文语法填空。 ◎ 知道：古印度的一位国王挑战一位智者，如果智者获胜了， 可以得到什么呢？ 　　A long time ago， there was a king who 1. ⁠ （live） in India. 2. （play） chess was his favourite hobby. One day he challenged a wise old man 3. a chess game. The king promised 4. ⁠ （give） the old man any prize 5. he won the game. lived 　 Playing 　 to 　 to give 　 if 　 课时精讲 课时过关 返回 目录 The old man only asked for one grain of rice for the first square of the chessboard， two for the second， four for the 6. （three）and then double 7. ⁠ amount for each of the rest of the squares. 8. ⁠ （final）， the old man won. The king tried to do 9. he had promised the old man. 10. ， he soon realized that he would not have enough rice to put on the chessboard！ third 　 the 　 Finally 　 what 　 However 　 课时精讲 课时过关 返回 目录 阅读理解。 第一节　阅读下面的短文，从每小题所给的A、B、C、D四个 选项中选出最佳选项。 　　It seems very natural that if you have two dollars and add two dollars to them， you have four dollars. But do you know it took men millions of years to be able to think this way？ In fact， one of the most difficult things to teach children is the idea of numbers. 课时精讲 课时过关 返回 目录 　　In ancient times when a man wanted to tell how many animals he owned， he had no system of numbers to use. He put a stone into a bag for each animal. The more animals， the more stones he had. It may explain why the word “calculate” comes from the Latin word “calculus”. “Calculus” means “stone”. 　　Then， man used lines to count. People would just draw a line for each thing they wanted to count， but they had no word to tell the number. 课时精讲 课时过关 返回 目录 　　Later on， people used fingers. Again， we have the word that goes back to this. The word “digit” comes from the Latin word “digitus”. It means “finger”！ And the fact that we have 10 fingers led to the use of 10 in the system of numbers. 课时精讲 课时过关 返回 目录 　　The number system we use today was invented by the Hindus in India thousands of years ago and was brought to Europe during 8th to 11th century by Arab traders （商人）. In this system， people count things with ten numbers： 1，2，3，4，5，6，7， 8，9 and 0. It is decimal system， that is， it is built on the base of 10. 课时精讲 课时过关 返回 目录 （　D　）1. How many ways of counting things are introduced to us in the passage？ A. One. B. Two. C. Three. D. Four. （　C　）2. If A and B each drew four lines to count their own sheep， how many sheep did they have together？ A. Four. B. Six. C. Eight. D. Ten. D C 课时精讲 课时过关 返回 目录 （　B　）3. Why do people use 10 in the system of numbers？ A. Because 10 is a popular number. B. Because we only have 10 fingers. C. Because we have no word to tell the number. D. Because we have no system of numbers to use. （　C　）4. What does “decimal system” mean in the last paragraph？ A. 数字系统 B. 计算工具 C. 十进制 D. 小数点 B C 课时精讲 课时过关 返回 目录 （　D　）5. Which of the following can be the best title of the passage？ A. Numbers and Trading B. Ways of Counting in Modern Times C. Animals and Calculating D. Development of Counting System D 课时精讲 课时过关 返回 目录 第二节　阅读下面短文，并从方框里的六个句子中选择五个还 原到原文中，使原文的意思完整、连贯。 A. One year includes 365 days. B. Interestingly， the markings are grouped in patterns. C. Simple counting methods firstly led to written numerals. D. Scientists think those lines show how ancient people used numbers. E. But the origins of numbering systems remain unknown. F. They likely counted single items by making marks on bones or sticks. 课时精讲 课时过关 返回 目录 　　 One plus one equals two. There are 60 seconds in one minute. Sixty minutes equals one hour. There are 24 hours in one day. 1. These basic number facts are part of our daily lives. But have you ever wondered how numbers first appeared and evolved throughout human history？ A　 课时精讲 课时过关 返回 目录 　　It’s certain that human civilization couldn’t have progressed without numbers. 2. That’s because early counting methods left no written records. Archaeologists （考古学家） believe counting began with simple quantities—probably starting with the concept of “one”， though ancient people didn’t use the word we know today. 3. ⁠ E 　 F　 课时精讲 课时过关 返回 目录 　　The most famous early counting tool is the Ishango Bone （伊 尚戈骨）， discovered in Africa in 1960. This 20，000-year-old bone contains series of carved lines that resemble modern tally marks. 4. And they suggest early understanding of basic mathematics. Some scientists believe the Ishango people might have even tracked lunar cycles using these bones. B　 课时精讲 课时过关 返回 目录 　　From these humble beginnings， numbers gradually developed into the complex systems we use today 5. Then they advanced to mathematics that built our modern world. The journey from bone carvings to computers shows how important numbers are to human progress. C 　 课时精讲 课时过关 返回 目录 本课件由深圳天骄文化出品，仅限教师教学使用。 本课件所有权和著作权归本公司所有， 任何人不得以非法形式进行销售或传播，违者必究! 谢谢观看 $