第18讲 九年级(上册) Unit 4 Amazing Science（课件PPT）-【鼎成中考·精准提分】2025年河南中考英语精讲册（课标版）

2025 河南·英语 课件说明 软件使用 本课件使用office软件制作，建议老师使用相应软件打开 编辑修改 本课件全文可单击进行编辑修改 便捷操作 目录、返回目录等都有超链接，点击即可跳转至相应页面 目录 CONTENTS 1 2 九年级上册 返回 目录 第十八讲　Unit 4 1. doubt的用法 返回 目录 -ful后缀 -ful作形容词后缀时，表示“充满”“具有”或“易于”等含义。这个后缀可以添加到名词或动词上，构成形容词，描述某种特性或状态。 doubtful不确定；怀疑 grateful 感激的 hopeful 有希望的 helpful 有帮助的 useful 有用的 meaningful 有意义的 返回 目录 •教材情境 There is no doubt that computers are very useful in technology and business.毫无疑问，计算机在技术和商业中非常有用。P101 返回 目录  •中考情境 (2024·长春)I started to doubt myself. Maybe I【1】was really weak in this kind of exercise. 我开始怀疑自己。也许我很不擅长这种运动。 知识补充 【1】be weak/poor in (doing) sth. 不擅长(做)某事 be good at/do well in (doing) sth. 擅长(做)某事 返回 目录 (2024·河北)Without doubt，we should treat money in a right way. 毫无疑问，我们应该正确对待金钱。 (2024·贵州)There is no doubt that social media has some problems，and it is very important to avoid spending too much time online.毫无疑问，社交媒体存在一些问题，避免在网上花费太多时间非常重要。 返回 目录 •应用情境 1．____________________ your parents may be influenced by your positive feelings. 毫无疑问，你的父母可能会受到你积极情绪的影响。 2．I realized I was maybe wrong. But I still doubted 【2】_________ or not I should say sorry to Lucy. 3．There is little time left. I'm ____ doubt if I can succeed in passing the coming exam. There is no doubt that whether in 返回 目录 易错提醒 【2】第2题 此题容易误填if。由语境可知，“我”仍然怀疑“我”是否应该向Lucy道歉。空后紧跟“or not”，空处只能填whether。 返回 目录 4．How could I ________ my sister's abilities？我怎么能怀疑我妹妹的能 力呢？ 5．______________，the Chinese are the ones who best understand the beauty of Peking Opera. 毫无疑问，中国人是最了解京剧之美的人。 6．I ______ _____ he can finish this task on time. 我不相信他能按时完成工作。 doubt Without doubt doubt that 返回 目录 2. weigh的用法 返回 目录 weight的用法 (1)weight是名词，意为“重量，体重”。 如：What's your weight? 你体重是多少？ (2)固定搭配： ① put on weight 增重 如：He has put on weight since he gave up smoking. 自从他戒烟后，体重增加了。 返回 目录 ② lose weight 减重 如：If you want to lose weight，it's necessary for you to avoid fat，oil and sugar. 如果你想减肥，就必须避免脂肪、油和糖。 返回 目录 •教材情境 So a person who weighs 90 kilos on Earth weighs only 36 kilos on Mars. 因此，一个在地球上重90千克的人在火星上仅重36千克。P93  •中考情境 (2023·锦州)If a person always feels hungry and can't put on weight or even loses weight，he should go to the hospital.如果一个人总是感到饥饿，无法增重甚至减重，他应该去医院。 返回 目录 •应用情境 7．African elephants are the largest kind of elephants and can ___________(重达) 8,000 kilos. 8．Having no breakfast will make people become so hungry at noon that they eat too much for lunch. They will ____________ instead of _______ it.不吃早餐会让人们中午太饿，以至于午饭吃得太多。他们会增重，而不是减肥。 9．—______ ______ is the biggest blue whale(鲸)? —It ________ as much as 30 elephants. weigh up to put on weight losing How heavy weighs 返回 目录 3. warn的用法(2021 ·43，2020 ·53) 返回 目录 •教材情境 One scientist warns that if robots start to think for themselves，they will no longer want to be our servants，but our masters. 一位科学家警告我们，如果机器人开始为它们自己考虑，它们将不再想成为我们的仆人，而是成为我们的主人。P103 返回 目录 •中考情境 (2024·重庆B卷)Aunt Polly warned me to do it well. Only one boy in a thousand has the talent to paint. Polly阿姨警告我要把它做好。一千个男孩中只有一个有绘画天赋。 返回 目录 •应用情境 10．Chinese has plenty of old sayings which warn people not _______ (be) lazy during this period of time. 11．The police warn students _________ the risks of making friends on the Internet. to be about/of 返回 目录 4. 辨析【3】 be made相关短语 词组 意义及用法 be made of “由……制成”，一般指能够看出原材料或发生的物理变化 is made of be made from “由……制成”，一般指看不出原材料或发生的化学变化 is made from 返回 目录 词组 意义及用法 be made in “在……制造”，后接产地 be made into “被制成……” are made into be made by “被……制造”，后接动作的执行者 is made by be made up of “由……组成”，后接组成内容或部分 返回 目录 知识补充 【3】make的相关短语： make up 弥补；构成；编造 make sense 讲得通；有道理 make use of 使用 make fun of取笑；嘲笑 make up one's mind 下定决心 返回 目录 •教材情境 —What's it made of? 它是由什么制成的？ —It's made of metal.它是由金属制成的。P81 返回 目录 •中考情境 (2024·广安)I'll try to recycle everything I can，like plastic and newspapers，so they can be made into some toys and other useful things.我会尽量回收我所能回收的一切，比如塑料和报纸，这样它们就可以做成玩具和其他有用的东西。 (2023·常德)Some of the best inventions are made by kids.一些最好的发明是由孩子们创造的。 返回 目录 •应用情境 of　from　in　into　by　up of 12．The cheese is made【4】______ milk and the bread is made ____ Shanghai. They can be made ______ delicious sandwiches. 13．This new model bike was made ____ Uncle Wang last week. As you can see，it was made ____ paper. 14．If success is a gate，the road towards it must be made _______ difficulties. from in into by of up of 返回 目录 易错提醒 【4】第12题第1空 此题容易误填of。芝士的主要原料是牛奶和乳酸菌，制作过程中发生了化学变化。故填from。 返回 目录 一、语篇填空 第一节 主题：人与社会 题材：谈论未来 涉及本讲词汇： thought，journey，might，doubt 涉及本讲语法：一般将来时的被动语态 返回 目录 with　thought　real　because　take　interest　dream　 might　journey　doubt 　　What will the world look like in 2045？I recently spoke with four students to get their 1.__________on this question. thoughts 返回 目录 with　thought　real　because　take　interest　dream　 might　journey　doubt 　　The kids think humans will live on Mars in 2045.They suggest that everyone should spend a few years on the red planet to give the Earth a “rest”. “And when we come back from the 2. _________，we must try not to pollute the Earth，”says Stark. The kids not only care about the progress in space exploration (探索)，but also are 3. ____________ in every new development. journey interested 返回 目录 with　thought　real　because　take　interest　dream　 might　journey　doubt 　　Pailey hopes to have a smartphone 4. ______ an excellent camera. In fact，technology can bring 5. ________ amazing things，but it can also bring some bad things. Stark【5】6.________of composing(创作)music for TV shows one day. Eric wants to be an inventor，but he thinks he 7._______ change his mind in the future. Pailey wants to be a scientist. with really dreams might 返回 目录 解题指导 【5】第6题 由语境可知，前后句都在讨论梦想，此空后有“of composing”，可知本题考查dream of doing “梦想做某事”这个短语，主语为第三人称单数，故填dreams。 返回 目录 with　thought　real　because　take　interest　dream　 might　journey　doubt 　　Many job，the kids predict(预测)，will be 8._______ the place of by robots. “There's probably going to be no more factory jobs 9._________robots can just do everything，”says Stark. But there is no 10._______that the tools to shape the future are in human hands. The world will be a better place，but they say，“We need to work hard，and we all need to learn to be kind to others.” taken because doubt 返回 目录 第二节 主题：人与社会 题材：条形码的发明及应用 涉及本讲语法：定语从句 　　Beep(嘟嘟声)! Beep! Beep! The barcode(条形码)technology makes it faster and easier 11.____ buy things in stores. You have probably seen the black-and-white barcode on product packaging(外包装). In 2025，the great invention is 54 years old. to 返回 目录 　　In 1971，an engineer named George Laurer came up with a code(代码) 12.___________could be printed on food packaging. Then the barcode was formed later. The system was used by many companies in 1973. Before this，shopkeepers had to record prices 13.____ hand. which/that by 返回 目录 　　What information does a barcode carry? It includes where the product comes from，its price，production date and so on. It can also help stores know about their products.【6】For example，if there 14._____ 10 boxes of milk and a customer buys one，it will be recorded so that the store owner knows there are nine boxes left on 15._____ shelf. In the 1980s，libraries started to use barcodes to follow their books in this way. are the 返回 目录 长难句翻译 【6】句意：例如，如果有10盒牛奶，一位顾客买了一盒，那么它将被记录以便店主知道货架上还剩余9盒。 返回 目录 二、补全对话 主题：人与自我 题材：梦想职业 涉及本讲句型：①询问未来职业　②表达希望和愿望 A：Hi. Robert. We will give a report about dream jobs this Friday.1.___________________？ B: Yes，I have. Have you finished it 返回 目录 A: 2.____________________________________________________________ ______________？ B: I want to be a doctor and I'm going to study Chinese medicine. A: Oh，I see. You coughed a lot last month. Chinese medicine helped you，right? B: 3._______________________.I've fallen in love with it. What are you going to be? What do you want to be when you grow up/ What's your dream job in the future/… You are quite right/ Sure 返回 目录 A: I want to be an engineer in the future. B: 4.____________________________________________________________ __________________________________________________________？ A: I'm going to study harder and get more knowledge. B: Where do you want to work after you graduate from university? How are you going to do that/ What are you going to do to realize it/ What will you do to realize your dream/… 返回 目录 A: I want to work in our hometown. I should do what I can to make our hometown better and better. B: 5.____________________________________________________________ ____________________________________. I hope your dream will/can come true/ I think your dream will be realized in the future/… 返回 目录 返回 目录 返回 目录 谢谢观看！ $$