2022_심화영어

172 Appendices (2) 2 . let one of the waiters go Communication Task 2 p. 73 STEP 1 A . (1) sell (2) interaction (3) rise B . (1) pursuing (2) welfare (3) classical STEP 3 A . e.g. I’d like to say something about “supply and demand.” It is an economic principle that determines the price of goods and services, with “supply” referring to the amount producers are willing to sell and “demand” referring to the amount consumers are willing to buy. B . ‌ e.g. I’d like to say something about the law of the invisible hand. It is an economic principle that suggests individuals pursuing their own self-interest in a free market economy indirectly benefit society as a whole. It has influenced modern economic policies and is an important concept in classical economics. STEP 4 e.g. I’d like to say something about “scarcity and choice.” They are economic concepts that explain why we must make decisions about how to allocate our limited resources based on our personal preferences and priorities. Ready to Read B . Vocabulary Preview p. 75 1 . degradation 2 . undesirable 3 . disposable 4 . subjective 5 . marginal C . Reading Strategy (B) – (A) – (C) / chronological order Read On 1 Q1 p. 76 Adam Smith was struggling with the paradox of why water, which is essential for life, is less valuable than diamonds, which are not essential. Q2 The following paragraph will likely discuss how the theories of subjective valuation and marginal utility E where → which F Further Reading pp. 66-67 Q1 ‌Einstein referred to this phenomenon as “time dilation.” Q2 ‌First, the object becomes more and more massive and requires more energy. Second, time actually slows down for the object relative to slower- moving observers. Q3 ‌Einstein’s work shows that at light speed, time stops altogether. Lesson 3 Pricing Mysteries! Spark Your Thoughts p. 68 a. e.g. If demand increases while supply remains constant, the price will rise. This is because when demand increases, there are more buyers in the market willing to pay a higher price for the product. As a result, sellers can charge a higher price and still sell all of their products. b. e.g. If supply increases while demand remains constant, the price will fall. This is because when supply increases, there are more sellers in the market willing to sell the product at a lower price. As a result, buyers can purchase the product at a lower price. c. e.g. The prices of goods can change for various reasons, and the factors influencing these changes can be complex. Interactive Communication Listen and Choose p. 71 1 . 2 . Active Communication Communication Task 1 p. 72 1 . (1) (a) $6,000 (b) $5,500