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リスニング音声も
朝活ミニテスト 第32回
制限時間 10分・全10問（リスニングあり）。選択肢を押すとタイマーが自動スタート。
語彙・熟語（大問1形式）
目安 2分30秒空所に入れるのに最も適切なものを1つ選びなさい。
訳：核融合は究極のクリーンエネルギー源とよく言われるが、必要とされる極端な高温のため、実用規模で実現するのが難しいことで知られている。
訳：初めて、核融合反応が点火のためにレーザーが与えたよりも多くのエネルギーを放出した。これは科学者たちが60年以上追い求めてきた重大な成果だった。
訳：批評家たちは、政府が核融合研究に巨額の資金を浪費しており、その資金はすでに利用可能な再生可能エネルギー技術に回すことができると主張している。
訳：研究予算が削減された後、ある参加国は国際的な原子炉計画から抜けることを決め、残りの参加国がその国の費用負担分を賄うことになった。
訳：今後10年以内に稼働する原子炉が建設されなければ、政府が核融合研究への投資を損失として帳消しにするのではないかと懸念する投資家もいる。
長文読解（大問3形式）
目安 4分30秒The Long Road to Fusion Power
Nuclear fusion, the process that powers the sun, involves forcing light atoms together so that they combine and release enormous amounts of energy. Unlike the fission reactors used in today's nuclear power plants, which split heavy atoms apart, fusion would not produce large quantities of long-lived, highly radioactive waste, and it carries no risk of a runaway chain reaction. Its main fuels can be obtained from seawater and lithium, which are relatively abundant. For these reasons, fusion has often been described as a nearly ideal energy source, and researchers have pursued it since the 1950s.
The challenge is that fusion on Earth requires temperatures of over 100 million degrees Celsius, far hotter than the center of the sun. No material can withstand direct contact with such heat, so most experimental reactors use powerful magnetic fields to hold the superheated fuel in place. In 2022, a laboratory in the United States announced that, for the first time, a fusion reaction had released more energy than the lasers delivered to trigger it. Experts noted, however, that the facility as a whole had consumed far more electricity than the reaction produced.
Opinions differ on what this progress means. Private companies, backed by billions of dollars in investment, claim that fusion power plants could begin supplying electricity within the next decade or two. Many scientists are more cautious, pointing out that major engineering problems, such as developing materials that can survive years of intense radiation, remain unsolved. Some critics further argue that because fusion is unlikely to contribute significantly before the middle of the century, funding should focus on technologies like solar and wind power, which can reduce emissions today.
リスニング（Part1 会話形式）
目安 2分M Did you read that a private company says it will have a working fusion power plant by 2035?
W I saw that. I'm a bit skeptical, though. People have been saying fusion is thirty years away for as long as I can remember.
M True, but this time there's a lot more private investment. Apparently, billions of dollars have gone into start-ups in the last few years.
W Money helps, but it doesn't solve basic physics problems. I'd still rather see governments put more into solar and wind now.
M Why not do both? Climate change is a long-term problem, and we'll need every option.
W I suppose you have a point. As long as fusion doesn't take funding away from things that already work.
スピーキング（面接No.3形式）
40秒Should governments invest more in developing new energy technologies such as nuclear fusion?
💡 環境面と経済面の2方向から理由を立てると、バランスのよい解答になる。
模範解答
はい、そう思います。第一に、化石燃料はいずれ枯渇し、気候変動の原因にもなるので、将来に向けて信頼できる新しいエネルギー源が必要です。第二に、核融合のような先端技術の開発は高度な技能を要する雇用を生み、日本のような国に世界の産業における優位性をもたらす可能性があります。
💡 環境面と経済面の2方向から理由を立てると、バランスのよい解答になる。
📝 解答 ― 準1級 第32回
スピーキング模範解答：Yes, I think so. First, fossil fuels will eventually run out and cause climate change, so we need reliable new energy sources for the future. Second, developing advanced technology like fusion could create highly skilled jobs and give countries such as Japan an advantage in global industries.
詳しい解説・和訳・スクリプトは解答ページへ：https://www.haradaeigo.com/scbt/ans/p1-32/