UNIT 9 Section Ⅳ LESSON 3-【金版新学案】2023-2024学年新教材高二英语选择性必修3同步课堂高效讲义教师用书（北师大版）

Section Ⅳ　LESSON 3 Step One: Pre-reading What epidemics do you know about? 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. 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 (EVD) is a deadly disease with occasional outbreaks that occur mostly on the African continent. EVD most commonly affects people and non-human primates. It is caused by an infection with a group of viruses within the genus Ebola virus. Step Two: While-reading Ⅰ.Read for the main idea What does the text mainly talk about? The text mainly talks about explanation of epidemics． Ⅱ.Read for general ideas Read the passage and answer the following questions. 1．What is an epidemic? An epidemic is the name given to an infectious disease that rapidly spreads to a large number of people within a short period of time—usually two weeks or less. 2．How can a disease be classified as an epidemic? Each disease can only officially be classified as an epidemic once a certain number of deaths have occurred from the disease. 学生用书↓第92页 Ⅲ.Read for details Read the passage carefully and choose the best answers. 1．Which of the following is NOT the feature of an epidemic? A．It spreads rapidly. B．A large number of people are affected. C．It can be caused by different factors. D．A large number of people will die. 2．What's the main idea of the second paragraph? A．The low baseline of epidemic. B．The classifications of an epidemic. C．The epidemic is different from the common flu. D．A few cases will also be classified as an epidemic. 3．What's the reason why the Spanish Flu was the most severe epidemic? A．People travelled and moved than ever before. B．People didn't think it could cause a threat at first. C．It broke out near