Unit 4 Section Ⅲ Discovering Useful Structures（课件PPT）-【精讲精练】2025-2026学年高中英语必修第一册（人教版）

该高中英语课件聚焦“Unit 4 Natural Disasters”，核心讲解限制性定语从句（关系代词who, whom, whose, which, that的用法及只用that的特殊情况）和核心词汇supply、survive，通过栏目导航导入，以思维导图梳理语法定义与用法，结合单元主题例句和即时训练，构建“理论梳理-实例解析-应用巩固”的学习支架。 其亮点在于用思维导图构建语法知识体系（思维品质），结合地震等灾害主题例句（如“The number of people who were killed...”）和即时训练（填空、合并句子）提升语言运用能力（语言能力），分栏目设计（语法精讲-核心知识-演练-作业）培养自主学习习惯（学习能力）。学生能在主题语境中掌握语法词汇，教师可借助系统资源高效教学。

Section Ⅲ　Discovering Useful Structures Unit 4　Natural Disasters 栏目导航 Unit 4　Natural Disasters 1 栏目导航 语法精讲•技能培养 01 核心知识•关键能力 02 随堂演练•巩固提升 03 课时作业•知能达标 04 栏目导航 Unit 4　Natural Disasters 1 语法精讲•技能培养 栏目导航 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 who whom whose whom 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 that/which who/whom/that that/which 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 栏目导航 Unit 4　Natural Disasters 1 that I have visited that Mr.Li said the only thing that 栏目导航 Unit 4　Natural Disasters 1 核心知识•关键能力 栏目导航 栏目导航 Unit 4　Natural Disasters 1     栏目导航 Unit 4　Natural Disasters 1 in are supplied 栏目导航 Unit 4　Natural Disasters 1 supplied food and clothes to supplied the homeless with 栏目导航 Unit 4　Natural Disasters 1     栏目导航 Unit 4　Natural Disasters 1 To survive by survivors have survived from earlier times 栏目导航 Unit 4　Natural Disasters 1 随堂演练•巩固提升 栏目导航 栏目导航 Unit 4　Natural Disasters 1 that whom that that/which who/that whose 栏目导航 Unit 4　Natural Disasters 1 Lu Xun's works that/which we are familiar with are considered great. They'll reach the sales goal in two months that/which they set at the beginning of the year. 栏目导航 Unit 4　Natural Disasters 1 I live next door to a couple whose children often make a lot of noise. I will remember the day forever that/which we spent together in the city. The old building whose roof was damaged in a rainstorm is now under repair. 栏目导航 Unit 4　Natural Disasters 1 课时作业•知能达标 栏目导航 课时作业•知能达标 栏目导航 Unit 4　Natural Disasters 1 谢谢观看 栏目导航 Unit 4　Natural Disasters 1 限制性定语从句(1) 一、关系代词who，whom，whose引导的定语从句 1．who指人，在定语从句中可以充当主语或宾语。先行词为指人的词(包括人名)、拟人化的动物和指人的人称代词或不定代词all，those，few，one等。 ① The number of people who were killed in the disaster was over 100. 在那次灾难中丧生的人数超过了100。 ②My teacher who had always believed in me，was proud of my achievement.(作主语) 老师一直相信我，为我的成就感到骄傲。 ③Danny was the man (who) we rescued from the ruins. 丹尼是我们从废墟中救出来的那个人。 2．whom指人，在定语从句中作宾语，若在从句中作介词的宾语，介词可用于whom之前，也可以位于句末。 ①Rose is the person (who/whom) you should care about.罗丝是你应该关心的人。 ②There are many people with whom you can share your feelings. 你可以与许多人分享自己的感受。 3．whose既可以指人，也可以指物，表示“所属”关系，whose在定语从句中作定语，常与它所修饰的名词一起出现在从句的句首。 ①I know the person whose house was destroyed in the earthquake. 我认识那个在地震中被摧毁了房子的人。 ②He lives in a house whose garden is attractive. 他住在一个有着美丽花园的房子里。 [即时训练1]　用关系代词填空 ①Those ___ want to join in the activity sign up，please. ②A doctor with ______ my father worked last year has gone abroad. ③Any student _____ family is too poor to let him go to school can get help from the government. ④I'd really like to find a friend ______ I can trust completely. 二、which和that引导的定语从句 1．which指物，在定语从句中作主语或宾语，或在从句中作介词的宾语。先行词为表示事物或动物的名词或表示职业的名词。 ①The young man was very happy to find the gold ring (which) he had lost. 那个年轻人找到了丢失的金戒指，非常高兴。 ②Everywhere I saw，there were buildings which had been destroyed by the earthquake. 我目光所及之处都是被地震毁掉的建筑。 ③Houses which overlook the lake cost more. 俯瞰湖泊的房子要价高些。 2．that既可指人，也可指物，在定语从句中作主语或宾语，作宾语时可以省略。先行词是表示人(不包括人名)、事物或动物的名词。习惯上指人多用who/whom，指物多用which。 ①He is the only student that understands English well.(that指人，作主语) 他是唯一一位会英语的学生。 ②There is one thing that keeps me worried.(that指物，作主语) 有一件事一直使我不安。 (1)关系代词指代先行词，在定语从句中充当主语、宾语或定语，因此定语从句中不能再出现关系代词所替代的名词或代词。 误：The film (that/which)we saw it last night is very frightening. 正：The film (that/which)we saw last night is very frightening. (2)关系代词在从句中作主语时不能省略，作宾语时可以省略。 Is that the girl (whom/who/that)you referred to the other day? 那就是你前几天所提到的女孩吗？ [即时训练2]　用关系代词填空 ①The old town has narrow streets and small houses __________ are built close to each other. ②There are some athletes _____________ I want you to meet. ③Do you still remember the chicken farm __________ we visited three months ago? 三、关系词只用that而不用which的情况 1．当先行词为all，everything，nothing，anything，much等不定代词时。 ①Nothing that has been learnt is ever completely forgotten. 任何学过的东西绝不会全部忘记。 ②All that can be done has been done. 所有能做的都做了。 2．当先行词是序数词、形容词最高级或被序数词或形容词最高级修饰时。 ①The first place that they visited in Beijing was the Forbidden City. 在北京他们参观的第一个地方是故宫。 ②This is the best way that is used to solve the problem. 这是用来解决这个问题的最好的办法。 3．当先行词被all，every，no，any，the only，the very，the last等修饰时。 ①I have returned all the books that I borrowed from the library. 我已经归还了所有我从图书馆借的书。 ②The only thing that she could do was turn to others for help. 她唯一能做的事就是去求助他人。 ③It is the very book that I want to read. 这正是我想读的书。 4．当先行词既有表示人又有表示物的名词时。 She took photos of the persons and things that she was interested in. 她把她所感兴趣的人和物拍摄下来了。 [即时训练3]　完成句子 ①这是我参观过的最漂亮的公园。 This is the most beautiful park ___________________． ②李老师讲的你都记下来了吗？ Have you taken down everything _______________? ③聊天是她唯一最感兴趣的事。 Chatting was ___________________ interested her most. supply n.供应(量)；补给；[pl.]补给品 vt.供应；供给 (1)a good/large supply of　大量的/充足的供应 in short supply　供应不足 (2)　把某物提供/供应给某人/某物 [经典佳句]　The supplies which were provided to the disaster area were collected from around the country. 向灾区提供的物资是从全国各地收集来的。 [即时训练]　单句语法填空/一句多译 ①The natural resources，such as coal and oil，are __ short supply in this country. ②At the beginning of the term，students ____________ (supply)with all kinds of books to read. ③在可怕的地震之后，我们给无家可归的人提供了食物和衣服。 A．After the terrible earthquake，we ____________________________ the homeless. B．After the terrible earthquake，we __________________________ food and clothes. survive vi.生存；存活 vt.幸存；艰难度过 survive sth　幸免于；从……中挺过来/活过来 survive from...　从……留存下来 survive sb by...　比某人多活…… survive on...　依靠……生存 [经典佳句]　She's feeding the baby who survived the earthquake. 她正在喂那个从地震中幸存的婴儿。 [即时训练]　单句语法填空/完成句子 ①__________ (survive)an earthquake，you need to prepare some water on hand. ②The old lady has survived all her sisters and brothers __ ten years. ③One of the _________ (survive)of the car crash was very calm and he helped other 3 passengers out of danger. ④有些传统的风俗是从早期遗留下来的。 Some traditional customs ________________________________． Ⅰ.用适当的关系代词填空 1．This is the very hotel ____ I stayed at when I was travelling here. 2．He is a man from ______ we are all ready to learn. 3．It is the most amazing building ____ Daming has seen ever since he came here. 4．We are going to learn some Chinese poems __________ were written in the Tang Dynasty. 5．She is one of the girls ________ have passed the exam. 6．I talked with the man _____ house was destroyed in the flood. Ⅱ.用定语从句合并句子 1．Lu Xun's works are considered great.We are familiar with the works. _________________________________________________________ 2．They'll reach the sales goal in two months.At the beginning of the year they set the sales goal. _________________________________________________________________________________ 3．I live next door to a couple.The couple's children often make a lot of noise. _________________________________________________________ 4．I will remember the day forever.We spent it together in the city. __________________________________________________________ 5．The old building is now under repair.Its roof was damaged in a rainstorm. _________________________________________________________________ $$