老师：Hello, everyone. Welcome to my class. Today we focus on the topic fight against 2019 novel coronavirus. First, let's make clear of the learning objectives in this class. You will be able to first learn and master the new words and expressions above the novel coronavirus.
老师：2Nd, get to know the facts about the novel coronavirus. And finally, express our ideas to fight against the novel coronavirus. Now let's come to task one, vocabulary. These are the words you need to learn in this class. Novel coronavirus, epidemic, droplet transmission, quarantine, incubation period. Diagnosed. Hygiene, suspected case, confirmed case, close contact. Vaccine, disinfect, symptom, ventilate. Now it's time for you to remember these words.
老师：Have you understood their meanings? Let's continue. Task two facts. We will cover the following topics. 1. What is 2019 novel coronavirus? 2. How does the virus spread? 3. How can we prevent it? 4. What are the symptoms of coronavirus infection? 5. What has been done to fight against the novel coronavirus? Recent weeks have witnessed around the clock reports on the novel coronavirus that emerged in China. Do you know what exactly it is? 2019 novel Coronavirus is a virus identified as the cause of an outbreak of illness first detected in Wuhan, China. It is a family of viruses in human that can cause a range of illnesses, including cough, cold, fever, breathlessness, etc.
老师：Then how does the virus spread? Mainly transferred through droplets and close contact. That is to say through the air by coughing and sneezing. Close personal contact such as touching or shaking hands, touching an object or surface with the virus on it, then touching your mouth, nose or eyes before washing your hand.
老师：Other facts or assumptions about the transmission include, 1st, air transmission is limited. That is to say the novel coronavirus can be transmitted by air for a distance of 1 to 2 meters but will not float in mid air. 2Nd, it can survive up to five days in environments. And the last point, maximum period of incubation is 14 days.
老师：How can we prevent it? Adopting and maintaining good personal hygiene is the key. It includes wash your hands thoroughly and frequently. Avoid touching your eyes, nose and mouth with and washed hands. Avoid close contact with people showing cough and cold symptoms. Open windows and ventilate the room regularly. Clean and disinfect frequently touched objects and surfaces. Wear face marks in public places.
老师：What are the symptoms of coronavirus infection? Some of the common signs include fever, cough, shortness of rest and fatigue. So far, we have Learned some basic facts about the virus. Now let's talk about how to fight against 2019 novel Coronavirus. Think about it. So far, what has been done to
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