Unit 2 Understanding ideas （ppt课件）(002)-2022新外研版（2019）《高中英语》必修第三册.pptx

1、To learn to talk about water problems in Africa,and give some effective solutions To read Ryans story and find out what he did to help solve the problemTo learn to describe an event with a timeline;To learn to summarize someones personal qualities from what he/she has doneLook at the map and talk ab

2、out water problems in Africa.Freshwater shortageFreshwater stressFreshwater problems in Africa by 2025This 13-year-old African girl has to spend 8 hours a day to fetch water.What s worse,this is the normal life for the people around her.Tick the solutions that you think are most effective to supply

3、Africa with fresh water.p collect and purify rainwaterp fund(provide money for sth)water projectsp build wells and pumpsp recycle(use sth again)waste waterp set up facilities to purify waterp develop new water conservation(protection)technologiesRead the passage and find out what Ryan did to help so

4、lve the problem of water shortage in Africa.Read the passage quickly,and find out:Who is Ryan?Why can the well change the world?Choose the best explanation of the title and give your reasons.1.The well built by Ryan solved the problem of worldwide water shortage.2.The more wells you dig,the better t

5、he world will be.3.The well built by Ryan encouraged more people to help make the world a better place.Read the text carefully and get the line of efforts that Ryan made to help set up wells in Africa.The passage is arranged in the order of time.We should find out what Ryan did at different periods.

6、During each period,he met different difficulties.We should find out what the difficulties were.first heard of water problem in Africawent to Uganda to see the wellsearned enough money for a hand pumpasked others for help to donate moneyset up a foundation for more help(know the problem)(find a solut

7、ion)(solve the problem)(evaluate the results)(raise the theme into a higher lever)Find the main idea in each paragraph.Para.1:Ryan learned that many people in developing African countries couldnt get enough clean water.So he decided to help them.Thinking:Why does the author use three interrogative q

8、uestions(疑问句疑问句)at the end of first paragraph?to arouse the readers interest to lead to the following paragraphsPara.2&3:After suffering many difficulties,Ryan succeeded in raising money to dig a well.Thinking:1.How did Ryan raise money?work for others ask others to donate make his story go public2.

9、Whats the function of the last sentence in Paragraph 3?It is a transitional sentence.Para.4:Ryan was happy to see the well in person and got warm welcome.Thinking:1.What kind of warm welcome did Ryan get?sing and dance offer him food and gifts2.Whats his attitude towards the students?At first he was

10、 nervous,but soon he realized he had made a real difference for them and he smiled at last.In Uganda,Ryan met Jimmy who had written to Ryan to show his thanks for Ryans well.Later,Ryan invited Jimmy to come to Canada to live with his family and helped Jimmy to study in Canada.Para.5:Over 800,000 peo

11、ple in Africa benefited from Ryans foundation.Ryans well changed the world.Para.6:Ryan continues to think about how tohelp others.His courage and perseverance make his dream a reality.Complete Ryans story with expressions from the passage.1.Ryan could get clean drinking water within ten steps,but so

12、me African children had to _.So Ryan decided to help.2.Ryan cleaned windows and did gardening,and reached _.But when he _,he was told it cost$2,000 to build a well.walk ten kilometershis first target of$70gave his money to the charity3.Ryan persuaded his classmates and neighbours to _.His mothers fr

13、iend also helped him.After several months,he raised enough money and a well was built in Uganda.4.Ryan visited Uganda.He saw _ _ who had turned out to welcome him.donate money hundreds of delighted students5.Later,Ryans experience led him to _ to encourage more people to help.6.Today,the life-changi

14、ng gift of clean water _ _.set up a foundationbenefit over 800,000 people in 16 countries across Africa1.What kind of person do you think Ryan is?Which of his qualities do you admire most?Why?2.As a senior high school student,what can you do to help people in need?1.shortage n.a situation in which t

15、here is not enough of something that people need 短缺短缺,不足不足,常与常与of连用连用 freshwater shortage=shortage of freshwater eg The long hot summer has led to serious water shortages.-age（suffix后缀）构成名词，表示处于某种后缀）构成名词，表示处于某种状态或结果。例如：状态或结果。例如：breakage 破损破损 marriage 婚姻婚姻，结婚结婚 postage 邮资，邮费邮资，邮费2.Globally,renewable

16、internal freshwater resource per capita was around 6,000 m3 in 2014.renewable adj.可再生的，可更新的可再生的，可更新的 re-(prefix前缀前缀)可加在动词、名词、形容词和可加在动词、名词、形容词和副词前面，表示副词前面，表示“再，又；回，回来再，又；回，回来”。eg recycle（回收利用）（回收利用）review（复习（复习）reunion（团圆，重聚）（团圆，重聚）restart（重新开始）（重新开始）reconstruction（重建（重建）return（回来，返回回来，返回）recall（回忆，召

17、回）回忆，召回）retract（缩回，取回缩回，取回）internal adj.inside 内部的内部的；反义词为；反义词为external3.effective adj.successful,and working in the way that was intended 有效有效的的;产生预期效果产生预期效果的的 eg The new rules will become effective in the next few days.-ive(suffix),构成名词或形容词，表示构成名词或形容词，表示“倾向的；倾向的；性质的性质的”eg descriptive 描述的描述的 creati

18、ve 创造性的创造性的 active 积极的积极的 explosive 炸药炸药 relative 血亲，亲戚血亲，亲戚4.As a six-year-old Canadian schoolboy,Ryan had trouble believing the words spoken by his teacher that many people in developing African countries couldnt get enough clean water.the words spoken by his teacher:the words which were spoken by

19、 his teacher spoken by his teacher是一个过去分词短语修是一个过去分词短语修饰饰the words，用来用来补充信息，补充信息，words和和speak的动作构成被动关系。的动作构成被动关系。that引导引导同位语同位语从句对名词从句对名词words作解释说明。作解释说明。have trouble(in)doing sth:做某事有困难做某事有困难have no trouble(in)doing sth:做某事没困难做某事没困难eg We had no trouble finding the address.six-year-old adj.六岁的六岁的，可作定

20、语，可作定语I have a six-year-old daughter.six years old adj.六岁的，常六岁的，常作表语作表语My daughter is six years old.six year olds n.六岁的六岁的孩子们孩子们So many six year olds are in their fist year inthe primary school(小学小学).developing countries 发展中国家发展中国家developed countries 发达国家发达国家在分词作定语的用法中，在分词作定语的用法中，现在分词现在分词常常表示动常常表示动作

21、作“未完成或正在进行未完成或正在进行”；过去分词过去分词可以表示可以表示动作动作“已经完成已经完成”。eg the boiling water 正在煮沸的水正在煮沸的水 the boiled water 开水开水 the falling leaves 正在飘落的树叶正在飘落的树叶 the fallen leaves 落叶落叶5.He looked across the classroom at the drinking fountain.It was very close-only ten steps away.drinking fountain:a piece of equipment in

22、 a public place that produces a stream of water for you to drink from 饮用水喷水池饮用水喷水池 v-ing can be used to tell the use of the modified noun.a washing machinea walking sticka swimming pool一台洗衣机一台洗衣机一根拐杖一根拐杖一个游泳池一个游泳池look across:look from one side to the other 从从一边看到另一边一边看到另一边eg After helping clean the

23、window,he looked across the room to see if there was anything else he could do.look across,look over,look through词条词条意思及用法意思及用法例句例句look across强调从一边看强调从一边看到另一边到另一边He went in and looked across the room carefully.look over 强调迅速地检强调迅速地检查查He looked over the proposal(提案提案)before the meeting.look through可以

24、表示翻查、可以表示翻查、翻找，也可以翻找，也可以表示表示(假装假装)没有没有注意到注意到She looked through me.(她假装没有看她假装没有看到我。到我。)6.At first,his plan was to earn money to build a single well somewhere in Africa.earn:to receive a particular amount of money for the work that someone does 挣挣(钱钱)eg earn money 挣钱挣钱 earn a wage/salary 挣工资挣工资/薪水薪水 e

25、arn a living 谋生谋生 earn a fortune 挣大钱挣大钱 earn a prize/reputation 获得奖赏获得奖赏/名声名声7.What they needed was a well dug near their homes.该句为一个该句为一个主语从句主语从句，属于名词性从句的一，属于名词性从句的一种。种。What we needed在整个复合句中作主语。在整个复合句中作主语。当当单个单个的主语从句作主语时，谓语动词用的主语从句作主语时，谓语动词用单单数数形式。形式。eg What Im afraid of is their taking him to Engl

26、and.What he said and what he did make her so angry.8.Two thousand dollars was a lot of money 表示表示时间、距离、金钱等的复数名词作主语时间、距离、金钱等的复数名词作主语时往往时往往可以根据意义一致的原则，把这些复可以根据意义一致的原则，把这些复数名词数名词看作一个整体看作一个整体，谓语动词用，谓语动词用单数单数形式。形式。如如：Three years has passed.三年三年已经过去了。已经过去了。One million dollars is a lot of money.一百万一百万美元是一大

27、笔美元是一大笔钱。钱。9.He started to ask for help from his classmates and neighbours and persuaded them to donate money.donate v.:to give something,especially money,to a person or an organization in order to help them捐赠，捐赠，捐献捐献 He frequently donates large sums to charity.Nowadays,so many people volunteer to d

28、onate blood.donation n.捐赠；捐赠物捐赠；捐赠物10.He also saw hundreds of delighted students who had turned out to welcome him.turn out:to go somewhere to be present at an event or take part in an activity 出席；参加出席；参加 eg Crowds of people turned out to watch the charity performance.turn out(to be)+adj:to have a r

29、esult especially one that you did not expect 最后最后结果是结果是/最终成为最终成为 eg It was a difficult time,but eventually things turned out to be all right.11.He really had made a difference for these children.He broke into a joyful smile.make a difference:have an important effect/influence on 有有作用；有影响作用；有影响 eg It

30、 would make a lot of difference if you came.break into a smile/a song/applause etc:to suddenly start smiling,singing etc 突然突然笑起来笑起来/唱起来唱起来/鼓起掌来等鼓起掌来等:eg Her face broke into a smile.The audience broke into loud applause.12.Later,Ryans experience led him to set up a foundation to encourage more people

31、 to help.set up:to start a company,organization or committee 建立建立 eg A panel(专家咨询组专家咨询组)needs to be set up to investigate the issue.13.Today,over 800,000 people in 16 countries across Africa have benefited from the life-changing gift of clean,safe water.benefit from:to get an advantage of/get help i

32、n得益于；从得益于；从受益受益 eg Many thousands have benefited from the new treatment.benefit n.:好处，益处好处，益处 have the benefit of 有有的好处的好处 for sbs benefit 为了某人的益处，帮助某人为了某人的益处，帮助某人life-changing adj.能改变人的一生的能改变人的一生的像这种由像这种由名词和名词和动词分词动词分词构成的合成形容词在构成的合成形容词在英语中比较常见，如：英语中比较常见，如：English-speaking,life-threatening 危及生命的危及生命

33、的;troublemaking 捣乱的捣乱的;heartbreaking 令人心碎的令人心碎的思考：思考：heartbreaking 和和heartbroken的区别。的区别。heartbreaking adj.使人心碎的，主语使人心碎的，主语可是可是人人或事物或事物heartbroken adj.心碎的，主语一般是心碎的，主语一般是人人14.This insight grew from the determined attitude of a six-year-old boy who had the courage and perseverance to make his dream a r

34、eality.句子结构：句子结构：grew from 作后置定语，修饰作后置定语，修饰insight;who had the courage 是定语从句，修饰先是定语从句，修饰先行词行词the boy；to make his dream a reality作作定语修饰定语修饰courage and perseverance。insight n.C:sudden clear understanding of something 顿悟，猛醒顿悟，猛醒 n.U the ability to understand and realize what people or situations are re

35、ally like 洞察力，眼光洞察力，眼光eg She is a woman of great insight.她是一位极有眼光的女性。她是一位极有眼光的女性。to make ones dream a reality:to realize ones dream 使使梦想成为梦想成为现实现实eg After years of hard work,he made his dream a reality.Fill in the blanks with the right form of the word in the bracket or a proper word.1.After helping

36、 clean the window,he looked _ the room to see if there was anything else he could do.2.Ryan did a lot to help people in Africa get clean _(drink)water.3.Having a good teacher makes a _(different)to a student.acrossdrinkingdifference4.His hard work and great efforts make his dream _ reality.5.They _(

37、set)up 1,000 shelters for homeless children so far.Thousands of children benefited _ the project.6.Every years,many young men in the countryside left their hometown _(earn)money in big cities.7.We were excited at the news _ our team won the first in the Olympic Games.8.He has trouble _(walk)to the p

38、ark,for he hurt himself yesterday.ahave setfromto earnthatwalkingKey expressionsllook acrossldrinking fountainlearn moneylturn out lmake a differencelset uplbenefit fromlmake ones dream a realityCan you give a short summary about the passage?Here are some tips:Realize the water shortage in Africa from his teacher Decide to earn money to build a well there Use different ways to get enough money Go to Uganda to see the finished well Set up a foundation Make his dream come true