Unit3 Section2 Using language(课件PPT)-【精讲精练】2024-2025学年高中英语必修第三册（外研版2019）

Unit 3　The world of science Section Ⅱ　Using language 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 目 录 语法精讲 技能培养 01 知识整合 核心突破 02 CONTENTS 知能达标训练 04 随堂演练 能力提升 03 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 语法精讲 技能培养 01 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 知识整合 核心突破 02 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 随堂演练 能力提升 03 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 点击进入Word 知能达标训练 04 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 谢谢观看 返回目录 Unit 3　The world of science 英语·必修 第三册(配WY版) 1 一、现在完成时的被动语态的形式 肯定式 主语＋have/has been done... 否定式 主语＋have/has not been done... 一般疑问式 Have/Has＋主语＋been done...？ 特殊疑问式 疑问词＋have/has＋主语＋been done...？ ◆They haven't been told the exciting news yet，have they? 还没有人告诉他们这个令人激动的消息，是吗？ ◆Has the date for the next meeting been decided? 下次会议的日期确定了吗？ ◆How long has the battery not been changed? 电池多久没有更换了？ ◆These flowers have been watered, and you can go home now. 这些花已经浇过水了，你现在可以回家了。 二、现在完成时的被动语态的用法 1．表示被动的动作在说话前已经完成，强调过去的动作对现在造成的影响或产生的结果，通常与 already，yet，never，recently等副词及时间状语 so far, by now, up till now等连用。 ◆The Xi'an City Wall is the most complete city wall that has survived China's long history.It was built originally to protect the city in the Tang dynasty and has now been completely restored. 西安城墙是中国历史上现存最完整的城墙。它最初是在唐朝时为护城而建，现已完全修复。 2．表示被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long...？”句子中。 ◆Financial problems of the company have been discussed for nearly two hours. 公司的财务问题已经讨论近两个小时了。 ◆How long has this film been shown? 这部电影已经放映多长时间了？ 3．用于时间或条件状语从句中，表示将来某时已完成的动作。 ◆You shouldn't leave school before your homework has been finished. 在你的作业没完成之前，你不应该离开学校。 [即时演练]——单句语法填空 (1)April drinks companies have been forced (force)to pay between 18p and 24p for every litre of sugary drink they produce or import, depending on the sugar content. (2)Great improvements in public health have been brought (bring) about by advances in medical science. (3)—The machine is working again! —Yes，it broke down yesterday，but it has been fixed (fix). (4)The residents have been told (tell) to stay at home for two weeks since last month. (5)How many cars have been produced (produce) by the factory since 2022? [核心词汇] 1．beyond prep.无法……；超出(某个数量、水平或限度)；晚于，迟于 (教材原句)Within the next 80 years, our lives may be changed beyond recognition by 3D printing. 今后80年内，三维打印技术可能会使我们的生活变得无法想象。 beyond recognition面目全非；无法辨认 beyond description无法形容 beyond belief令人难以置信 beyond compare无与伦比 beyond argument无可争辩 beyond one's control超出某人的控制 beyond one's power超出某人的能力 beyond one's reach在某人够不到的地方 [练通]——补全句子 (1)My hometown has changed beyond recognition (认不出来)since I was here last time. (2)There was nothing we could do about it—the situation was beyond our control (无法控制). A wave of desperation swept over us. (3)The natural beauty of West Lake is beyond description (无法用语言表达), which attracts a great number of visitors every year. 2．significant adj.重要的，影响深远的 (教材原句)But perhaps the most significant success that people have achieved to date is in medicine. 但也许迄今为止人们取得的最重大的成功是在医药方面。 (1)be significant for对……是重要的 It is significant that ...很明显…… (2)significance n．意义；重要性；重要意义 be of (great/no/little) significance to/for...对……(很/不)重要 attach (great) significance to重视；认为重要 (3)significantly adv.显著地；明显地；有重大意义地 [练通]——单句语法填空 (1)The expert thinks that schools should attach significance to students' all­round development rather than only their grades. (2)The two species are not significantly (significant) different from each other so it is difficult to tell them apart. [写美]——词汇升级 (3)World Oceans Day was set up to make people aware that protecting the oceans is very important. →World Oceans Day was set up to make people aware that protecting the oceans is of great significance/importance . 3. cure n．药剂；疗法vt.治愈；治疗；改掉(坏习惯) (教材原句)Currently，there's no cure for Alzheimer's，but scientists are researching ways to improve the quality of life for people living with the disease. 目前，阿尔茨海默症还没有治愈的方法，但是科学家们正在研究改善阿尔茨海默症患者生活质量的方法。 (1)a cure for...……的疗法/措施 (2)cure sb of sth治愈某人的(某种疾病)；改正某人的(不良行为) [练通]——单句语法填空 (1)These doctors are determined to devote themselves to finding a new cure for the lung cancer. (2)After the recovery, he decided to express his great thanks to the doctor who cured him of the disease. [写美]——完成句子 (3)父母应尽力去改掉孩子们的坏习惯。 Parents should try to cure their children of the bad habit . 与“cure sb of sth”结构相似的短语： (1)rob sb of sth抢劫某人的某物 (2)inform sb of sth通知某人某事 (3)remind sb of sth使某人想起某事 (4)warn sb of sth警告某人某事 Ⅰ.单句语法填空 1．All the measures have been taken (take), so we can do nothing but wait. 2．Much attention has been paid (pay) by Tom to his handwriting since the teacher warned him of it. 3．Their new house has been decorated (decorate) for two months and they will settle in it next month. 4．She has achieved success in writing, and has completed a large number of works，which have been translated (translate) into forty languages so far. 5．You know，the experiment has been repeated (repeat) three times, with similar results each time. 6．Paper money has existed (exist) in the world for over one thousand years. Ⅱ.语法与写作 1．李华被北京大学录取了，这让他的父母很自豪。 Li Hua has been admitted to Peking University, which makes his parents proud. 2．在过去的十年间，“中国速度”已经被赋予了新的含义。 “China speed” has been given new meanings in the past decade. 3．运动会已经推迟到下周五了吗？ 　Has the sports meeting been put off until next Friday? 4．这学期已经学了多少新单词？ 　How many new words have been learnt this term? 5．我们的教室已经被打扫过，因此你现在没必要再打扫了。 　Our classroom has been cleaned　， so you needn't clean it again now. $$