Question

詩

21番です。
なぜ、対比の訳になるのか教えていただきたいです🙏

IV 次の英文を読み, 空所 19~
VR肢①~④から1つずつ選びなさい。
問題
23を埋めるのに文脈上最も適切なものを、それぞれ下の選
Sixty-five million years later, the extinction of the dinosaurs remains a great mystery. Scientists
think that dinosaurs existed on Earth for almost 200 million years. 19 could these great beasts,
some of which weighed thousands of pounds and stood 100 feet tall, suddenly disappear?
11
The most popular theory is that the dinosaurs were killed off when an asteroid into
southern Mexico. The asteroid's collision caused earthquakes, fires, and tidal waves. Volcanoes
erupted, spewing poisonous gases into the sky and lowering the oxygen level in the oceans. Plants
died, removing the food source for plant-eating dinosaurs. As these dinosaurs died, there was no food
for meat-eating dinosaurs. In a short period of time, the dinosaurs were gone, and the first mammals
began to appear.
Many scientists note that,
21
the asteroid had a major impact, the Earth's climate had already
scientists claim that mammals already on Earth before the asteroid might have 22 the extinction
begun to change. The planet was cooling, and the colder temperatures were likely killing plants. Some
by eating dinosaur eggs.
We may never know for certain what caused the extinction of the dinosaurs. But it was most
likely the result of a combination of the asteroid, colder climates, and egg-stealing mammals 23
the single event of the asteroid hitting the Earth.
2024年度
全学
Casey Malarcher et al., Reading for the Real World 1, Second edition
When
②
19
What
3 Who
4 How
came
②
carried
20
3 crashed
4 burst
21
while
once
3 unless
4 yet
22
① governed
obstructed
3 facilitated
4 united
23
1 other than
rather than
③ except for
4 owing to

Answer 1

多分Roninする

本文のテーマは、恐竜が絶滅したことについてで共通していて、2パラの1文目のpopularが一般論を表す単語として機能している。一般的には、隕石と衝突した。３パラ目のscientist（知識、教養がある筆者サイド）の考えは、気候変動による気温の低下になっている。
→popularで一般論の目印だと考えて、筆者の主張はないのかと予測する。３パラと逆のことを言っているから、対比なのでは、という具合に考える。