2022_심화영어

Answers 171 C . Reading Strategy Read On 1 Q1 p. 46 He died from ingesting mercury. Q2 p. 47 The planula larva attaches to a surface, such as a rock, the ocean floor, or a boat’s frame. Q3 p. 48 Transdifferentiation Q4 p. 49 Immortal jellyfish may survive ocean crossings by being transported in ballast water and reversing their life cycle under stress. Review 1 A . Check Your Understanding p. 50 (1) environmental stress (2) immature (3) tube-shaped (4) stuck (5) break away Read On 2 Q5 p. 51 Gathering enough Turritopsis dohrnii was challenging because they are small and difficult to identify and sample in the field. Q6 p. 53 F Q7 p. 54 Opinion Review 2 A . Check Your Understanding p. 55 (1) normally (2) double (3) restorative (4) mutations (5) shorter Language in Use A . Vocabulary Focus 1 . Words in Context p. 56 (1) (2) (3) (4) 2 . Expressions in Use (1) hang out (2) go hungry (3) reverted back to (4) break away from (5) become obsessed with B . Grammar Focus p. 57 1 . (1) may have missed (2) should have told (3) could have gone (4) should have gone (5) may have left 2 . ‌(1) where (2) which (3) which (4) which (5) where (6) where (7) which Write for Communication pp. 58-59 STEP 1 (1) extinction worldwide (2) e.g. 35 percent of amphibians and 30 percent of corals are at risk of extinction. (3) e.g. 22 percent of mammals, 18 percent of reptiles, and 14 percent of fish are at risk of extinction. (4) e.g. The least threatened group among animals is birds, only with 13 percent. (5) e.g. a lot of animals worldwide are at risk of extinction. STEP 2 (1) largest (2) next (3) threatened (4) least (5) extinction Viewing & Doing pp. 60-61 B . Watch an Example Video 1 . 2 . Do It Yourself pp. 62-64 A B 1 . 2 . ‌ e.g. Metamorphosis is the transformation process butterflies undergo. It involves four stages: egg, caterpillar, pupa, and adult. The adult stage is marked by distinct features including long legs and colorful wings that allow the butterfly to fly. C D 1 . ‌that in order to prevent global air pollution, we should focus on the largest polluters while employing various pollution control strategies. 2 .