2020年-高中英语-必修第一册-UNIT-4-Section-C-Discovering-Useful-Structures-ppt课件-(新人教版)

Section CDiscovering Useful Structures&Listening and Talking高中英语高中英语 新人教版新人教版 同步精品课件同步精品课件2020必修第一册必修第一册必修第一册必修第一册Unit 4Unit 4 Natural DisastersNatural Disasters自主预习学习理解.知识体系图解 volcano eruptsupplyhurricanepowertapwhistleemergencycalmaid自主预习学习理解现有(尤其指帮助)志愿做醒来;唤醒搭起;搭建在户外阻止做用覆盖与保持距离紧紧握住首先保持镇静处于危险中自主预习学习理解自主预习学习理解.选词填空1.It is known to all that an active volcano can at any time.2.The government has declared a state of following the earthquake.3.So,do we dance in order to make ourselves feel better,healthier?(2018全国卷)4.You can plant a tree,make a meal with locally grown vegetables,or save the possibilities are endless.(2019北京卷)5.Caffeine,a chemical typically found in coffee,has caused a lot of concern because it is one of the few drugs that show up regularly in our food.(2018浙江卷)erupt emergencycalmerpowersupply自主预习学习理解.完成句子1.Can you tell me who (阻止你去)to the cinema last night?2.The boy was completely lost and didnt know_(去哪里).3.Hearing the words,the girl was so shy that she(用捂着脸)her hands.4.The weather was so fine that they decided to have a packed lunch(在户外).5.Soon after the flood,many countries(为他们提供)food and clothing.prevented you from going where to gocovered her face within the open airprovided them with自主预习学习理解.听说导学听教材P53的Conversation,回答第1至3小题。1.Where does the conversation most probably take place?A.In the teachers office.B.In the classroom.C.At the police station.2.What is Lucky?A.An expert.B.A student.C.A rescue dog.答案:B答案:C自主预习学习理解3.What are the speakers talking about?A.What to do in an earthquake.B.How to prevent disasters.C.How to predict disasters.答案:A自主预习学习理解重点词汇重点句式重点语法随堂练习1.supply n.pl.补给品;供应(量);补给vt.供应;供给【课文原句】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的。【词汇精讲】句中的supply意为“补给品”,要用复数形式。There is a crying need for more medical supplies for the survivors.幸存者们急需更多医疗药品。The supply of coal and gas would not last forever.煤炭和天然气的供应不会永远持续下去。We supplied them with money and clothes.我们给他们提供钱和衣服。自主预习学习理解重点词汇重点句式重点语法随堂练习【词汇拓展】自主预习学习理解重点词汇重点句式重点语法随堂练习自主预习学习理解重点词汇重点句式重点语法随堂练习2.aid n.援助;帮助;救援物资vi.&vt.(formal)帮助;援助【课文原句】first aid kit 急救包【词汇精讲】上面的aid意为“援助;帮助”,是名词做定语,修饰kit。There is no doubt that Johns first aid skills he learned at school saved Ms Slades life.毫无疑问,约翰在学校学到的急救技能挽救了斯莱德女士的生命。The old man gets about with the aid of a walking stick.老人借助于拐棍四处走动。His classmates aided him in his English study.他的同学帮他学英语。自主预习学习理解重点词汇重点句式重点语法随堂练习【词汇拓展】自主预习学习理解重点词汇重点句式重点语法随堂练习自主预习学习理解重点词汇重点句式重点语法随堂练习3.calm adj.镇静的;沉着的vt.使平静;使镇静【课文原句】If you find yourself in danger from a forest fire,first of all,stay calm.如果你发现自己处于森林火灾的危险之中,首先要保持冷静。【词汇精讲】句中的calm意为“镇静的;沉着的”,做连系动词stay的表语。In the face of great danger,its important to keep calm.在危险面前,保持镇静很重要。They can be trained to remain calm in noisy and crowded places.通过训练,在喧闹和拥挤的地方他们依然可以保持镇静。自主预习学习理解重点词汇重点句式重点语法随堂练习【词汇拓展】Though he was very angry,he tried hard to calm himself.尽管他很气愤,他努力使自己平静下来。The baby was crying and the mother was trying her best to calm him.婴儿在哭,妈妈想尽办法使他安静下来。Youd better calm down,or else you will get into trouble.你最好冷静一点,不然你就有麻烦了。自主预习学习理解重点词汇重点句式重点语法随堂练习calm,quiet,still,silent 自主预习学习理解重点词汇重点句式重点语法随堂练习自主预习学习理解重点词汇重点句式重点语法随堂练习4.on hand 现有(尤其指帮助)【课文原句】Now for our emergency supplies,we would suggest always having on hand enough water and food for three days,a radio,.对于我们的紧急物资,我们建议随时有足够的水和三天的食物,一台收音机【词汇精讲】句中的on hand是介词短语,意为“现有”,在句中做状语。He has too much work on hand to go picnicking with us.他手头的工作太多了,不能跟我们去野餐。We could only study those animals that we happened to have on hand.我们只能对现有的动物进行研究。自主预习学习理解重点词汇重点句式重点语法随堂练习【词汇拓展】自主预习学习理解重点词汇重点句式重点语法随堂练习自主预习学习理解重点词汇重点句式重点语法随堂练习Now for our emergency supplies,we would suggest always having on hand enough water and food for three days,a radio,.对于我们的紧急物资,我们建议随时有足够的水和三天的食物,一台收音机【句式剖析】本句是一个简单句。Now for our emergency supplies是介词短语做状语,would suggest是谓语动词,having.是动词-ing形式的短语做宾语。自主预习学习理解重点词汇重点句式重点语法随堂练习【句式拓展】suggest表示“建议”时,后接名词、代词、动词-ing做宾语,也可接that从句。suggest表示“建议”,后接宾语从句时,从句的谓语动词要用should do,should可省略。I suggested climbing Mount Tai next Sunday.我建议下周日爬泰山。Our English teacher suggested our handing in the homework tomorrow.我们的英语老师建议我们明天交作业。I suggest that you(should)stay here as if nothing had happened.我建议你待在这里,就像什么也没发生一样。The doctor suggested that I(should)come again next day.医生建议我第二天再来。自主预习学习理解重点词汇重点句式重点语法随堂练习suggest表示“暗示;表明”时,后面的宾语从句不用虚拟语气。His expression suggests that he didnt sleep well last night.他的表情说明他昨晚没睡好。自主预习学习理解重点词汇重点句式重点语法随堂练习自主预习学习理解重点词汇重点句式重点语法随堂练习限制性定语从句(I)(which,that,who,whom,whose)定语从句是用来充当句中定语的从句,它主要用于修饰句子中的名词、代词,其位置位于被修饰的名词、代词之后。在被修饰的名词、代词与定语从句之间往往有一个关系词将其前后两部分联系成一个整体,关系词可分为两种:关系代词和关系副词。常见的关系代词有:that,which,who,whom和whose。一、关系代词的用法1.who指人,在定语从句中做主语或宾语。Theres a man at the front door who wants to see you.前门口有个人想见你。Those who want to go outing must be at the school gate at 7 tomorrow morning.想去郊游的人必须在明晨7点到大门口集合。自主预习学习理解重点词汇重点句式重点语法随堂练习2.whom指人,在定语从句中做宾语,常可省略。Mr.Smith is the man(whom)you talked about on the bus.史密斯先生就是你们在公共汽车上谈论的那个人。The monitor is just the student(whom)I want to see.班长正是我想要见的那个学生。