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【高校英語】共通テストの英文解釈 vol.1355
≪2023年共通テスト第6問B≫ 2023/5/31配信
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今回は2023年共通テスト第6問Bを解説します。
■ 問題
第6問
B You are in a student group preparing for an international science
presentation contest. You are using the following passage to create your
part of the presentation on extraordinary creatures.
Ask someone to name the world's toughest animal, and they might say the
Bactrian camel as it can survive in temperatures as high as 50℃, or the
Arctic fox which can survive in temperatures lower than -58℃. However,
both answers would be wrong as it is widely believed that the tardigrade
is the toughest creature on earth.
Tardigrades, also known as water bears, are microscopic creatures, which
are between 0.1 mm to 0.5 mm in length. They live almost everywhere, from
6,000-meter-high mountains to 4,699 meters below the ocean's surface. They
can even be found under thick ice and in hot springs. Most live in water,
but some tardigrades can be found in some of the driest places on earth.
One researcher reported finding tardigrades living under rocks in a desert
without any recorded rainfall for 25 years. All they need are a few drops
or a thin layer of water to live in. When the water dries up, so do they.
They lose all but three percent of they body's water and their metabolism
slows down to 0.01% of its normal speed. The dried-out tardigrade is now in
a state called "tun," a kind of deep sleep. It will continue in this state
until it is once again soaked in water. Then, like a sponge, it absorbs the
water and springs back to life again as if nothing had happened. Whether
the tardigrade is in tun for 1 or 10 years does not really matter. The
moment it is surrounded by water, it comes alive again. When tardigrades
are in a state of tun, they are so tough that they can survive in
temperatures as low as -272℃ and as high as 151℃. Exactly how they
achieve this is still not fully understood.
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