2022_심화영어

Answers 173 explain the diamond-water paradox. Connecting to You e.g. Rare stamps are valuable. While the primary use of stamps is for postage, their exchange value often far exceeds their practical utility. Collectors highly covet rare stamps for their historical significance, unique designs, and scarcity. The limited supply and high demand in the market contribute to their elevated exchange value. Q3 p. 77 Smith believed diamonds are more expensive than water because they are more difficult to bring to market, which means it takes a lot of labor to mine them, as well as expensive high-level skills to cut them. Q4 Wooden chairs are priced by labor, and fine wines are priced by subjective value. Connecting to You e.g. One example of a product for which subjective value determines the price is high-end designer bags, as well as other luxury goods including watches and jewelry. Q5 p. 79 The concept of marginal benefit is that economic decisions are based on the value derived from the most important use of a good to a person, rather than the total benefit. Each additional unit of a good has its own usefulness, which determines its value. This explains why diamonds, which are of low supply and high usefulness, are worth more than water, which is abundant and has lower marginal usefulness. Connecting to You e.g. Bottled water commands a higher price than tap water despite their similar composition due to several factors. Firstly, the production and packaging costs associated with bottled water contribute to its elevated price. Additionally, marketing and brand image play a significant role. Consumers are willing to pay for the convenience and perceived quality associated with well- branded bottled water. Review 1 A . Check Your Understanding p. 80 1 . (1) price (2) market (3) costs (4) individuals (5) total (6) additional (7) important 2 . (1) price (2) assumptions (3) perspectives Read On 2 Q6 p. 81 cause and effect Q7 p. 83 comparison and contrast Q8 p. 84 The harmful cycle involves the increased demand for luxury foods leading to higher prices, which in turn prompts more intensive fishing and adds stress to dwindling populations, potentially resulting in the extinction of the species. Review 2 A . Check Your Understanding p. 85 1 . b 2. d 3. a 4. e 5. c Language in Use A . Vocabulary Focus 1 . Word Forms p. 86 (1) harmful (2) natural (3) productive (4) beautiful (5) profitable (6) additional 2 . Expressions in Use (1) in order to (2) On the surface (3) in turn (4) be looked upon B . Grammar Focus p. 87 1 . (1) led (2) barking (3) located (4) taught (5) created (6) brought 2 . ② → to use ⑤ → to prioritize Write for Communication pp. 88-89 STEP 1 Introduction: Which is more valuable, gold or diamonds? Supporting Ideas 1 . Gold is a very malleable metal, which means that it can be easily shaped and formed into various objects.