大学入学共通テスト（英語） 過去問
令和7年度（2025年度）本試験
問44 (英語リーディング（第8問） 問7)
問題文
各大問の英文を読み、最も適当な選択肢を選びなさい。
You are working on an essay about space exploration. You will follow the steps below：
Step 1：Read a range of opinions gathered from the Internet about exploring outer space.
Step 2：Take a position on space exploration.
Step 3：Create an outline of your essay using additional sources.
▶［Step 3］Create an outline of your essay
Essay outline
A Reconsideration of Space Exploration
Introduction
Space exploration is without doubt on the frontline of science，but it should not be a priority for the following three reasons.
Body
REASON 1 from Step 2，based on evidence from the opinions in Step 1
REASON 2（ 43 ），based on evidence from Source A
REASON 3，based on evidence（ 44 ）from Source B
Conclusion
Upon consideration of all its aspects，we should perhaps prioritize other things over exploring space.
Source A
Although you may not make a direct connection between space exploration and environmental problems，a connection does exist. First，the CO2 emissions of spacecraft are not insignificant. It is estimated that one spacecraft launch emits 200−300 tons of CO2 and other harmful gases into the Earth’s atmosphere. More and more spacecraft are being sent into space，which is damaging for the Earth.The contribution to the greenhouse effect of these craft’s CO2 emissions is causing the Earth’s temperature to rise.Second，space exploration is damaging the thermosphere（the space environment close to the Earth）. The quantity of space debris，the junked parts of spacecraft or artificial satellites，is on the rise. NASA estimates that，in the thermosphere，there are currently around 23，000 pieces of space debris which are larger than a softball and travel at speeds of up to 28，000 km／h. This poses a risk to future spaceflight，and may even be a potential obstacle to astronomical observation.
Source B
Space exploration is getting more and more costly; in 2022 it was reported that the total amount of money spent by all the governments around the world was more than US$100 billion. The graph below compares this cost with the annual budgets，estimated by international institutions，that would be required to address some of the world’s most important issues.
For REASON 3，you have decided to write the cost of space exploration is high and the money could be used instead to solve major world problems. Based on Source B，which option best supports this statement？（ 44 ）
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問題
大学入学共通テスト（英語）試験 令和7年度（2025年度）本試験 問44（英語リーディング（第8問） 問7） （訂正依頼・報告はこちら）
各大問の英文を読み、最も適当な選択肢を選びなさい。
You are working on an essay about space exploration. You will follow the steps below：
Step 1：Read a range of opinions gathered from the Internet about exploring outer space.
Step 2：Take a position on space exploration.
Step 3：Create an outline of your essay using additional sources.
▶［Step 3］Create an outline of your essay
Essay outline
A Reconsideration of Space Exploration
Introduction
Space exploration is without doubt on the frontline of science，but it should not be a priority for the following three reasons.
Body
REASON 1 from Step 2，based on evidence from the opinions in Step 1
REASON 2（ 43 ），based on evidence from Source A
REASON 3，based on evidence（ 44 ）from Source B
Conclusion
Upon consideration of all its aspects，we should perhaps prioritize other things over exploring space.
Source A
Although you may not make a direct connection between space exploration and environmental problems，a connection does exist. First，the CO2 emissions of spacecraft are not insignificant. It is estimated that one spacecraft launch emits 200−300 tons of CO2 and other harmful gases into the Earth’s atmosphere. More and more spacecraft are being sent into space，which is damaging for the Earth.The contribution to the greenhouse effect of these craft’s CO2 emissions is causing the Earth’s temperature to rise.Second，space exploration is damaging the thermosphere（the space environment close to the Earth）. The quantity of space debris，the junked parts of spacecraft or artificial satellites，is on the rise. NASA estimates that，in the thermosphere，there are currently around 23，000 pieces of space debris which are larger than a softball and travel at speeds of up to 28，000 km／h. This poses a risk to future spaceflight，and may even be a potential obstacle to astronomical observation.
Source B
Space exploration is getting more and more costly; in 2022 it was reported that the total amount of money spent by all the governments around the world was more than US$100 billion. The graph below compares this cost with the annual budgets，estimated by international institutions，that would be required to address some of the world’s most important issues.
For REASON 3，you have decided to write the cost of space exploration is high and the money could be used instead to solve major world problems. Based on Source B，which option best supports this statement？（ 44 ）
- The amount of money that governments around the world spend on space exploration could not only reduce hunger but also make primary education available in developing countries.
- The data show that it costs less to ensure clean water for people in developing countries than for governments around the world to explore space.
- With less than half the money that governments spend on space exploration，it would be possible to address the problem of educational inequality in the developing world.
- With the money currently invested in space exploration，we could provide sufficient food，basic education，and enough clean water in developing countries.
正解！素晴らしいです
残念...
この過去問の解説 （1件）
01
問題文は
「理由3として、宇宙探索の費用は高く、そのお金は代わりに世界の主な問題解決に使うことができると書くことに決めた。Source Bに基づき、どの選択肢がこの記述を支持しているか。」
です。
Source Bには
「宇宙探索はますます高額になっており、２０２２年には、世界中の政府が費やした総額は、米ドルで１０００億以上であると報告されました。下のグラフは、この費用と年度の予算を比較したもので、世界の最も重要な問題を解決するよう求められている国際機関によって見積もられたものです。」
とあります。
グラフを見ると、政府の投資の総額は、1030億。
発展途上国で必要とされるであろう額が、項目ごとに書かれています。
この内容と選択肢を見比べて解いていきましょう。
正解 「世界中の政府が宇宙探索に費やしているお金は、発展途上国の飢餓を減らすだけでなく、初等教育が利用できるようになる」
飢餓と教育の解決に必要な額は、40billion+54billion=940億。
したがって、1030億あれば解決できるので、正解となります。
「世界中の政府が宇宙探索にかける費用より、発展途上国で綺麗な水を確保する方が費用はかからないとデータが示している。」
水の確保には1500億かかるとあるため、違います。
「政府が宇宙探索に費やす費用の半分以下で、発展途上国の教育の不平等の問題に取り組むことができる。」
半分以下の額は、約52billion以下。
教育問題解決に必要な額は54billionとあるので、違います。
「現在、宇宙探索に投資されているお金で、発展途上国で、十分な食料、基本的な教育十分な綺麗な水を提供できる。」
1030億では、すべての問題を解決するのにお金が足りません。
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