Unit9 Lesson3 Epidemics Explained 课件-2025-2026学年高中英语北师大版选择性必修第三册

1 Unit 9 Human Biology Lesson 3 Epidemics Explained 谢引 Pre-reading What epidemics do you know about? 谢引 COVID-19 COVID-19 is a new strain of coronavirus that has not been previously identified in humans. The COVID-19 is the cause of an outbreak of respiratory illness first detected in Wuhan, Hubei province, China. 谢引 SARS Severe acute respiratory syndrome (SARS) is a viral respiratory illness that was recognized as a global threat in March 2003, after first appearing in Southern China in November 2002. Ebola Virus Disease Ebola Virus Disease (EVD) is a deadly disease with occasional outbreaks that occur mostly on the African continent. EVD most commonly affects people and nonhuman primates. It is caused by an infection with a group of viruses within the genus Ebola virus. 谢引 5 谢引 Useful words or expressions： □ painful/ weak/ numb（麻木的）/ scared/ terrible/ dizzy（晕） □ got a fever / sore throat（咽喉疼）or dry throat（咽喉干燥） /high temperature/ cough/ blocked nose（鼻塞）/sneeze（打喷嚏）/expectoration（咳痰） □ lay in bed and rested/ took Chinese or western medicine / Lianhua Qingwen capsule（连花清瘟）/ got injected（打针） … P58 1 Now, let's read a passage to learn more about epidemics. 谢引 7 Epidemics infectious disease spread rapidly within a short period of time a large number of people are infected cause a certain number of deaths What are the features of an epidemic? What is an epidemic? An epidemic is an infectious disease that rapidly spreads to a large number of people within a short period of time, and it causes a certain number of people. Prediction What is the genre（体裁）of the text ？ A. Narration B.Exposition C.Argumentation D.Paractical writing √ 10 Read the text quickly and match main idea with each part Part 1(Para. 1) A. Examples of epidemics in history. Part 2(Para. 2) B. The definition of an epidemic. Part 3(Para.3-8) C. Ways to deal with epidemic. Part 4(Para.9) D. The criteria(标准) of identifying an epidemic. Activity1 To learn 11 Read and match Part 1(Para. 1) A. The ways to solve epidemic. Part 2(Para. 2) B. The criteria(标准) of judging an epidemic. Part 3(Para.3-8) C. The epidemics in history. Part 4(Para.9) D. The definition of an epidemic. 谢引 Read the first passage and answer the questions. Activity 2 ∙ What is an epidemic? P58 2 谢引 Read the second passage and answer the questions. ∙ How can a disease be classified as an epidemic? ∙ Is common cold epidemic？ P58 2 谢引 14 Epidemics infectious spread rapidly within a short period of time a large number of people are infected cause a certain number of deaths What are the features of an epidemic? To analyse 谢引 Read from paragraph 4 to 8 Activity 3 ∙ Circle all the epidemics and time mentioned in the passage. P58 2 谢引 Check your answers. ∙ Circle all the epidemics mentioned in the passage. bird flu 1918 Spanish Flu The Black Death SARS Ebola Virus Disease (EVD) 谢引 Epidemics when epidemics started examples of epidemics baseline number of deaths of epidemics definition when it ended What aspects of information are mentioned in the passage? (EX4) Read and complete the table. Name Period Places Death toll（死亡人数） Bird Flu Epidemics in the Roman Empire The Black Death The Spanish Flu SARS EVD In 1997 More than a hundred lives Rome Half of the area’s population In the 1330s In 1918 50 million people China, Canada, Vietnam and Singapore West Africa More than 11,310 death About 500 and 550 CE Asia, Europe 2002-2003 2013-2016 List Epidemics on record. P58 2 Epidemics in the Roman Empire Time:_________ 500-550 CE The Black Death （1330s） The Spanish Flu (2002-2003) SARS EVD 2013-2016 1918-the end of World War I Covid -19 Time：2019-2022 Bird flu since 1997 ∙ Countries will need to work together to do this because teamwork among nations across the globe can save lives. ∙ This is a good example of building a community with shared future for mankind(命运共同体). What should different countries do to prevent outbreaks of epidemics in the future? Why? Read paragraph 9 and answer： Details about COVID-19 Infected person: More than 400 million Death: More than 6 million Related countries: countries and regions all over the world Time: began in 2020. 21 谢引 21 How to describe an epidemic Activity 4 P58 2 when it started death toll People’ feelings scientist’s finding 谢引 bird flu People’ feeling Many people feel it could be the next global epidemic scientist’s finding：a modern adaptation of Spanish flu death toll： It took a hundred lives when it started It first appeared in 1997 P60 4 How to describe an epidemic（an example） 谢引 Use the underlined words or phrases to introduce Covid-19 P58 2 covid-19 过去三年多，全球经历由阿尔法、德尔塔、奥密克戎等变异毒株（strain）引发的多轮疫情高峰。世卫组织数据显示，全球累计报告确诊病例逾7.6亿，死亡病例超过690万。 谢引 Activity5 Discuss the questions. 1.What does the title mean to you? What does the writer want to convey in the passage? 2. Could epidemics completely stopped? P60 5 谢引 ∙ The title means that the passage will explain questions about epidemics. ∙ The author wants to convey the information that we are always on our way to find an explanation to epidemics so as to find cure. It also implies that epidemics occurred naturally and inevitably. We can only explain it, and cannot prevent it or stop it completely now. 1.What does the title mean to you? What does the writer want to convey in the passage? Critical thinking Activity 6 谢引 Probably not. Because epidemics developed by spreading, only by cutting the connection between people and people and the world completely can we stop epidemics 2. Could epidemics completely stopped? 谢引 What can we do to protect us from epidemics such as COVID-19? Wear a mask to prevent infection Wash your hands often to pay attention to hygiene （卫生） Open the window and ventilate (通风) the rooms Go out less and don’t gather Don’t stay up late and exercise regularly Get vaccinated against COVID-19 Search online and find some information about epidemics in China or Asia. Report your information to the class. ∙ Coronavirus emerged in December 2019. ∙ Coronavirus can be spread from person to person. ∙ COVID-19 symptoms include: Cough; Sore throat; Fever or chills; Tiredness; Shortness of breath or difficulty breathing … ∙ To prevent infection and to slow transmission of COVID-19, do the following: Wash your hands regularly; Cover your coughs and sneezes; Wear a mask in public places … P61 8 Homework: Write a short passage about how to prevent epidemics. You can use words and phrases below. 1. wear a mask to prevent infection 2. wash your hands often to pay attention to hygiene 3. open the window and ventilate the rooms 4. go out less and don’t gather 5. don’t stay up late and exercise regularly 6. get vaccinated against COVID-19 Thanks for listening ! 谢引 32 Lavf57.56.101 $