Unit 1 Science and scientists Reading and thinking 课件-2024-2025学年高中英语人教版(2019)选择性必修第二册

Reading＆Thinking Unit 1 Teenage life Be able to find out the top sentence of each paragraph Be able to collect information about Adam’s challenges, feelings and solutions in senior high school through reading Compare school life in different places School life Pre-reading What do you want to know about school life in other countries? What would you tell a foreign teenager about school life in China? Around 7 a.m- 4 p.m. Students move to different classrooms to have classes. Go to school clubs or after-school activities after school. Compulsory courses ＆ optional courses Homeworks mainly contains reading and essays. School life in America: Around 7 a.m- 6 p.m. Teachers move to different classrooms to teach. Go home and do homework after school. 13 courses: Chinese, maths, English.... Homeworks mainly contains copying and test exercises. School life in China : While-reading Skim the text to find the main idea of the each paragraph. You can find main ideas by first taking a quick look at the title, picture(s), key words and phrases, and topic sentences. skim Paragraph 1: Paragraph 2: Paragraph 3: Paragraph 4: Senior high school is a challenge. Adam had to think very carefully about which courses he wanted to take. Adam had to choose extra-curricular activities. Adam will have to study harder in the future and get used to being responsible for a lot more. Read the text quickly to find the main idea of each paragraph. topic sentence linking words key phrases Paragraph(s) Main Idea 1 2-3 4 5 scan the text quickly and complete the form. What? Who? How? The truth Results and significance John Snow began to test the theory, using statistics and maps. The water carried the disease. King Cholera was defeated. Snow transformed the way scientists study diseases. Cholera hit London in 1854. John Snow decided to destroy it While Reading: 11 Read the whole text quickly and match the main ideas. Para1 Para 2 Para 4 Para 5 John Snow desired to destroy cholera. John Snow decided to prove the second theory. Snow began his study by marking on the map Truth of the infection of cholera Snow's contributions Para 3 While Reading: Read for the main idea JOHN SNOW DEFEATS“KING CHOLERA” Cholera used to be one of the most feared diseases in the world, until a British doctor, John Snow, showed how it could be overcome. This illness causes severe diarrhoea, dehydration, and even death. In the early 19th century, when an outbreak of cholera hit Europe, millions of people died from the disease. As a young doctor, John Snow became frustrated because no one knew how to prevent or treat cholera. In time, he rose to become a famous doctor, and even attended to Queen Victoria when she gave birth. However, he never lost his desire to destroy cholera once and for all. Para.1 1.What’s the effect of Cholera? 2.What’s John’s decision? While Reading: Find a problem Cholera causes______diarrhoea, dehydration, and even death. In the eary19th century, when an _______of cholera ______ Europe, millions of people died ____ the disease. John never lost his _____ to ________ cholera once and for all. severe hit from outbreak destroy desire What’s the effect of Cholera? What’s John’s decision? Para.1 While Reading: Find a problem Para.1 While Reading: Find a problem Cholera It's one of ________________________ in the world, because it causes _______________________________. _______________________(when), an outbreak of cholera hit _______ milions of people ______________________. However, he had a desire to __________________ once and for all. Snow He rose to become _________________ , and even _______________ Queen Victoria when she gave birth.. Snow became ________ because no one knew _________________. the most feared diseases severe diarrhoea and dehydration In the early 19th century Europe died from the disease “King Cholera” frustrated how to prevent or treat cholera a famous doctor attended to destroy cholera Though being famous, he was still devoted to defeating “King Cholera” In general, doctors in those days had two contradictory theories to explain how cholera spread. One theory was that bad air caused the disease. Another was that cholera was caused by an infection from germs in food or water. Snow subscribed to the second theory. It was correct, but he still needed proof. Consequently, when an outbreak of cholera hit London in 1854, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. 1.What are the two theories? Which theory did John Snow think was reasonable? 2.What did John Snow ready to do when another outbreak hit London in 1854? Para.2 While Reading：Make a question & Think of a method 1. What are the two theories? The first suggested that... The second suggested that... 2. Which theory did John Snow think was reasonable? John Snow ___________________the second theory. subscribed to While Reading: make a question Para.2 5. What did John Snow ready to do when another outbreak hit London in 1854? Snow began to investigate.(调查法) He discovered that in two particular streets the cholera outbreak was so severe that more than 500 people died in ten days. He was determined to find out why. Para.2 While Reading: Think of a method 3. What happened in 1854? 4. How many people died in 10 days? Cholera outbreak hit London. 500 Snow began by marking on a map the exact places where all those who died had lived. There were multiple deaths near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40). However, some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge8 Street) had had no deaths. These people worked in the pub at 7 Cambridge Street. They had been given free beer, and so had not drunk the water from the pump. Snow suspected that the water pump was to blame. What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day. As a result of this evidence, John Snow was able to announce that the pump water carried cholera germs. Accordingly, he had the handle of the pump removed so that it could not be used. Through this intervention, the disease was stopped in its tracks. Para.3 While Reading: Collect data & Analyse the results 1)How did John get a valuable clue about the cause of the disease? 2) What did he find on the map? What did he do to deal with it? A map of Broad Street What method did he use? Broad Street Many deaths happened here. No death happened here. Snow suspected that the water pump was to blame. Pub Para.3 While Reading: Collect data & Analyse the results 3. Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street? 4.When Snow _____________________, cholera was at an end. These families had not drunk the water from the Broad Street pump. had the handle of the pump removed Para.3 While Reading: Collect data & Analyse the results The truth was that the water from the Broad Street pump had been infected by waste. Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London. Some companies sold water from the River Thames that was polluted by raw waste. The people who drank this water were much more likely to get cholera than those who drank pure or boiled water. Para.4 While Reading：Find supporting evidence & Draw a conclusion 1.How did John Snow further confirm that cholera was spread by germs? 2. What’s the conclusion of John’s research? 1. How did John Snow further confirm that cholera was spread by germs? 2. What’s the conclusion of John’s research? 3.How were people infected with the virus of cholera? Moreover, Snow was later able to show a link between other cases of cholera and the different water companies in London. The truth was that the water from the Broad Street pump had been infected by waste. Some companies sold water from the River Thames that was polluted by raw waste. Para.4 While Reading：Find supporting evidence & Draw a conclusion The people who drank this water were much more likely to get cholera than those who drank pure or boiled water. Through Snow's tireless efforts, water companies began to sell clean water, and the threat of cholera around the world saw a substantial decrease. However, cholera is still a problem. Each year, millions of people around the world get cholera and many die from it. Fortunately, we now know how to prevent cholera, thanks to the work of John Snow. Moreover, in his use of maps and statistics, Snow transformed the way scientists study diseases. For this reason, Snow is considered the father of modern epidemiology. Para.5 While Reading：Solutions and significance 1.What’s the solution of the problem? 2.What is the significance of Snow’s tireless effort? Read Para 5 carefully and fill in the blanks. The result: Through Snow’s tireless __ , water companies began to sell , and the threat of cholera around the world saw a substantial . , cholera is still a problem. Each year, __ of people around the world get cholera and many _ it. efforts clean water decrease However millions die from Snow's contribution: Fortunately, we now know how to cholera， the work of John Snow. , in his use of maps and statistics, Snow the way scientists study diseases. Snow's achievement: Snow is considered . prevent thanks to Moreover transformed the father of modern epidemiology Para.5 While Reading：Solutions and significance 3. What qualities do you think John Snow has? warm-hearted; courageous; determined (strong -willed); talented; intelligent; patient; careful (having good observation) hard-working…; Para.5 While Reading：Solutions and significance Read the passage again and complete the chart below. It was believed that olera was caused by bad ____________ or germs in________________. A Snow____________ the places where the people who ____________had lived. B Many deaths occurred near the ____________in Broad Street. Some people__________ drunk the water from the pump , and lived. A woman and her daughter died in another part of London after___________. C The ______________ of the pump was removed. E The pump water carried_________________. D theories evidence process conclusion solution air food or water marked died water pump had not drinking water from the pump cholera germs handle While Reading： Stages Key words or sentences 1. two contradictory theories 2. in two particular street the cholera was so severe ..... find out why 3. marking on the map 4. houses number 16,37,38 and 40; 20 and 21; 8 and 9 5. multiple death near the water pump; some houses had no death. 6. a woman and her daughter had died, the woman liked the water.... had it delivered to her house 7. John Snow announced that the pump water carried cholera germs. analyse the result ask a question draw a conclusion collect data find supporting evidence think of a method find a problem While Reading： Post Reading： Consolidation Retell the passage according to below: John Snow was a well-known ________ in London in the ___ century. He wanted to find the ______ of cholera in order to help people __________ it. In 1854 when a cholera ____ London, he began to gather information. He _______ on a map ______ all the dead people had lived and he found that many people who had _______ (drink) the dirty water from the ______ died. So he decided that the polluted water _______ cholera. He suggested that the _____ of all water supplies should be _______ and new methods of dealing with _______ water be found. Finally, “King Cholera” was _______. doctor 19th cause hit marked pump source examined polluted defeated infected with where drunk carried Father of hybrid rice keep people away from hunger Despite the danger of infection, devotion to the research of COVID-19 Discussion Discussion How has John Snow 's work affected our daily lives? His work can protect people from being killed by the severe disease. Furthermore, it told us we should protect our environment from being polluted. In order not to get infected with disease, what should we pay attention to in our daily life? In our daily life, in order not to get infected with the infectious disease, such as cholera, AIDS, SARS, COVID-19 ,what should we do？ Heal the food left overnight Cook raw food thoroughly Wash hands often Keep away from flies choose fresh sea food Keep the kitchen clean deal with rubbish properly. Drink boiled water Post Reading：Critical Thinking Don't forget to wear a mask when you go out. Discussion homework 1. Write a short passage in 80 words to introduce him/her and the reason why you admire him/her. 2. Think about what qualities a great scientist should have. 3. According to seven steps of scientific research, work in groups to make a presentation about how our country fight against the COVID-19. Thanks for your attention! $$