Unit2 Making a difference Understanding ideas（ppt课件）-2023新外研版（2019）《高中英语》必修第三册.pptx

1、B3U2 Making a differencePeriod 2 Understanding ideasLook at the map and talk about water problems in Africa.(P18-1)What is it about?What do different colours stand for?capita人均人均 renewable 可再生的可再生的 cubic meter立方米立方米 Water scarcity in Africa Water scarcity remains a serious issue in parts of Africa f

2、or years,especially in North Africa.In Africa,millions of people cant get access to clean drinking water,and they are living in areas with poor sanitation services.Moreover,water availability,access and optimal use in Africa are not promising.Only 5%of Africascultivated land is irrigated and less th

3、an 10%of hydropower potential is utilized for electricity generation.The reasons for water scarcity in Africa are complicated.l Frequent droughts due to global warming and deforestation have shrunk lakes and changed rainfall patterns.l Traditional irrigation technology and agriculture have caused a

4、good sum of water waste.l Growing population and urbanization have increased the domestic and industrial water consumption,which cant be fully supported by poor infrastructure.collect and purify rainwaterfund water projects build wells and pumps recycle waste water set up facilities to purify waterd

5、evelop new water conservation technologiesNow tick the solutions that you think are most effective to supply Africa with fresh water.Look at the pictures and the title and answer the questions.1.Predict what will be talked about in the text.2.Whats the meaning of the title?Read the passage and find

6、out what Ryan did to help solve the problem of water shortage in Africa.(P18-2)Ryan What Ryan did to help solve the problem of water shortage in Africa?Explain the title of the passage and give your reasons.Find out the structure of the passage.What Ryan did to help solve the problem of water shorta

7、ge in Africa?Ryan raised$2,000 to build a well near a primary school in Uganda,and later set up a foundation to attract more support to provide clean,safe water for people in Africa.Explain the title“The well that changed the world”and give your reasons.1.The well built by Ryan solved the problem of

8、 worldwide water shortage.2.The more wells you dig,the better the world will be.3.The well built by Ryan encouraged more people to help make the world a better place.Find out the structure of the passage.Part 1Para._Part 2Para._Part 3Para._12-56Why did Ryan want to help?How did Ryan help?ConclusionC

9、omplete Ryans story with expressions from the passage.(P21-4)walk ten kilometres to get water every dayhis first target of$70gave the money to a charitydonate moneyhundreds of delighted studentsset up a foundationhas benefited over 800,000 people in 16countries across Africa:decided to helpplan to e

10、arn money for his first targetask more people for help and persuade them to donate moneyencourage more people to help:at firstafter several months in Ugandalaternow1.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

11、do to help people in need?caring;determined;responsible.promote the awareness of helping others;give a hand when necessary;donate some used clothes or stationery to people in need.1.:determined,courageous and persevering.2.:Ryans story makes me understand that perseverance makes the impossible possi

12、ble.As far as Im concerned,success comes to anyone who insists working with perseverance.Instead,lack of perseverance can only result in failure or disappointment.We see this in our life.Outstanding athletes spend almost all their time practicing.Their endurance is beyond imagination.The same is tru

13、e of businessmen who work day and night.Even when they fall behind in certain fields,we will find that they dont give up their targets.Their continuous efforts are still admired by us.12345678910Important lexical chunksreach the target of ask for helpbe determined to do sth.persuade sb to do sth go

14、publicbe grateful to sb break into a joyful smilelead sb to do sthencourage sb to do sthbenefit from make ones dream a reality达到达到的目标的目标求助求助下定决心做某事下定决心做某事说服某人做某事说服某人做某事公开宣布公开宣布对某人表示感激对某人表示感激突然露出快乐的笑容突然露出快乐的笑容引导某人做某事引导某人做某事鼓励某人做某事鼓励某人做某事从从中获益中获益实现某人的梦想实现某人的梦想Important sentences1.As a sixteen-year-old

15、 Canadian schoolboy,Ryan had trouble believing the words spoken by his teacher that many people in developing African countries couldnt get enough clean water.同位语从句同位语从句2.What they needed was a well dug near their homes.主语从句主语从句Important sentences3.After several months,Ryan had raised$2000,with which a well was build near a primary school in Uganda.定语从句：介词定语从句：介词+关代关代4.He also saw hundreds of delighted students who has turned out to welcome him.定语从句定语从句Write an essay(about 80 words)to introduce the person you admire most.Try to share his/her good qualities and your opinions.