(
课件网) Unit 9 Human Biology Lesson 3 Epidemics Explained To read and talk about diseases; To make and confirm guesses based on a general understanding; To notice the organisationl structure of a passage; To express and discuss ideas in a group setting; To practice using phrasal verbs; To search online for information and present findings to the class. Learning objectives What kinds of epidemics do you know SARS (非典) swine flu (猪流感) avian/bird flu (禽流感) EVD (埃博拉病毒) … Activate and share What do you know about epidemics Tick (√) the statements that you think are correct. □ An epidemic is the rapid spread of an infectious disease. □ An epidemic can affect a large number of people in a given population. □ An epidemic can occur within a short period of time, usually two weeks or less. □ An epidemic may spread to several countries or continents. □ Some common viruses, such as the common cold, are not epidemics. □ A new epidemic can be a different variation of a virus that people caught in the past. P58 1 Now, let's read a passage to learn more about epidemics. Read the passage and answer the questions. Task 1 What is an epidemic How can a disease be classified as an epidemic Circle all the epidemics mentioned in the passage. P58 2 Read and explore Check your answers. What is an epidemic How can a disease be classified as an epidemic Circle all the epidemics mentioned in the passage. bird flu 1918 Spanish Flu The Black Death SARS Ebola Virus Disease (EVD) Bird Flu Name Period Places Death toll Bird Flu since 1997 more than a hundred lives Many people fear it could be the next global epidemic, especially (as scientists who have gone into detail studying tissue samples from the bodies of people (who died of the 1918 Spanish Flu) have proved (that bird flu is a modern adaptation of that virus)). Epidemics in the Roman Empire the Black Death EVD Spanish Flu SARS Task 2 Read the passage again. Complete the table about the epidemics mentioned. Why did bird flu have such a low baseline Name Period Places Death toll Epidemics in the Roman Empire 500-550 CE Rome half the population it was one of the main causes of the fall of the Roman Empire. Bird Flu the Black Death SARS EVD Epidemics in the Roman Empire Spanish Flu What is the influence of Epidemics in the Roman Empire Name Period Places Death toll The Black Death 1330s Asia and Europe because one visible symptom was black spots on the body. Bird Flu the Black Death SARS EVD Epidemics in the Roman Empire Spanish Flu Why was it called “The Black Death” Bird Flu the Black Death SARS EVD Epidemics in the Roman Empire Spanish Flu Name Period Places Death toll 1918-the end of World War I 50 million people As a result of the war, more people were travelling and moving perhaps than ever before in history and this caused the epidemic to spread worldwide. Why did The Spanish Flu spread so widely Bird Flu the Black Death SARS EVD Epidemics ... ...
