上外版（2020）选择性必修第四册 Unit 2 Learning about Trade and Economy Listening and Viewing学案（学生版+教师版）

《高中英语（上外版）》选择性必修第四册Unit 2 Learning about Trade and Economy 课时：第4课时 课题： Listening and Viewing about Trade and Economy 课型：Listening and Viewing 设计者： Worksheet Listening ：Why do we need to study economics Step 1: Answer the question: When you plan to take a trip to a foreign country, will you choose a cheap flight with longer flight time of a more costly one with shorter flight time Possible answers: 1. I will choose the with longer flight time because I have a tight budget but plenty of time. 2. I will choose a more costly one with shorter flight time because I think it is a waste of time spending so much time on a flight since time is money. 3. Whether I’ll take a cheap flight or not may totally depend on the purpose of my flight, as well as some related factors. If I am not on a tight schedule, I will choose a cheap flight with longer flight time. If I have an appointment or have to take part in some contests, I would like to choose a direct flight that might be more expensive, but more time-saving, and more comfortable, and as we all know, “time is money.” Step 2: Listen and complete the table. Economics is a study of how we deal with scarcity. · The initial concept learned in economics is scarcity. · We have 1 unlimited wants and limited resources. · Economics makes us better 3 decision-makers . Thinking like an economist means seeing the 4 unseen . · An example of my wife choosing a flight among the three: a Thursday night flight which was 5$ 275 ; a Friday night which was 6$ 300 ; a Saturday morning flight which was 7$ 325 . She worked in a restaurant from Monday through Friday, earning about 8$100_ a day. Actually, the cheapest flight is 9 the Saturday morning flight . ·Thinking like an economist has saved me 10_time and 11 money . Step 3: Interactive activity: Listen to the material again and work in groups and discuss: Why did the most expensive Saturday morning flight turn out to be the cheapest in fact Suggest similar examples from your daily life. Possible answer: The most expensive Saturday morning flight turned out to be the cheapest in fact because of the opportunity cost or the unseen cost. One similar example in our daily life may be like this: Now in China, if a business person wants to go to Beijing for a business trip from Shanghai, he may fly to Beijing or take the high-speed train. As to the first choice, the cost of a two-hour flight from Shanghai to Beijing is around 800 yuan. And a high-speed train ticket is about 600 yuan and the time is nearly four hours. If he wants to save time, the flight may seem a better choice at first sight. 1 However, it is not if you give a second thought. He will have to arrive at the airport two hours before the departure time; the flight might be delayed or even cancelled due to bad weather. While-task 2: Viewing：How the Economy Really Works Step 1:Read the short passage in the textbook and think about the ancient forms of money. 1. What was the ear ... ...