高中學測
107年
英文
第 52 題
📖 題組：
Most parts of Taiwan have access to sufficient supplies of fresh water for drinking. But fresh water can be in short supply in many arid regions of the world such as Saudi Arabia, where there are limited water resources. As the world population continues to grow, shortages of fresh water will occur more often and the need for additional water supplies will become critical. Some may ask, “Since the ocean covers more than 70 percent of the Earth, why not just get drinking water from the ocean?” To turn seawater into fresh water, we need to remove the salt in seawater, that is, to desalinate seawater. The problem is that the desalination of water requires a lot of energy. Salt dissolves very easily in water, forming strong chemical bonds, and those bonds are difficult to break. The energy and technology to desalinate water are both expensive, and this means that desalinating water can be costly. There are environmental costs of desalination as well. Sea life can get sucked into desalination plants, killing small ocean creatures like baby fish and plankton, upsetting the food chain. Also, there is the problem of what to do with the separated salt, which is left over as a very concentrated brine. Pumping this super-salty water back into the ocean can harm local aquatic life. Reducing these impacts is possible, but it adds to the costs. Despite the economic and environmental hurdles, desalination is becoming increasingly attractive as human beings are using up fresh water from other sources. At present, desalinating seawater is the only viable way to provide water to growing populations in rural areas of the Middle East and North Africa. Therefore, the race is on to find a cheaper, cleaner, and more energy-efficient way of desalinating seawater, and promising new findings are being reported.
Most parts of Taiwan have access to sufficient supplies of fresh water for drinking. But fresh water can be in short supply in many arid regions of the world such as Saudi Arabia, where there are limited water resources. As the world population continues to grow, shortages of fresh water will occur more often and the need for additional water supplies will become critical. Some may ask, “Since the ocean covers more than 70 percent of the Earth, why not just get drinking water from the ocean?” To turn seawater into fresh water, we need to remove the salt in seawater, that is, to desalinate seawater. The problem is that the desalination of water requires a lot of energy. Salt dissolves very easily in water, forming strong chemical bonds, and those bonds are difficult to break. The energy and technology to desalinate water are both expensive, and this means that desalinating water can be costly. There are environmental costs of desalination as well. Sea life can get sucked into desalination plants, killing small ocean creatures like baby fish and plankton, upsetting the food chain. Also, there is the problem of what to do with the separated salt, which is left over as a very concentrated brine. Pumping this super-salty water back into the ocean can harm local aquatic life. Reducing these impacts is possible, but it adds to the costs. Despite the economic and environmental hurdles, desalination is becoming increasingly attractive as human beings are using up fresh water from other sources. At present, desalinating seawater is the only viable way to provide water to growing populations in rural areas of the Middle East and North Africa. Therefore, the race is on to find a cheaper, cleaner, and more energy-efficient way of desalinating seawater, and promising new findings are being reported.
Which of the following best describes the author’s attitude toward the future of desalination?
- A Amazed.
- B Doubtful.
- C Conservative.
- D Hopeful.
思路引導 VIP
請仔細觀察文章最後一段，特別是 $promising$ $new$ $findings$ 以及 $the$ $race$ $is$ $on$ 等關鍵詞。在衡量了前文所述的經濟成本與環境負擔後，作者對於解決這些困境的可能性，展現出何種帶有前瞻性且正向的語氣色彩？
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AI 詳解
AI 專屬家教
水喔！這位同學，我看你骨骼驚奇，這題答對簡直是邁向頂標的第一步！出題老師想用一堆環保問題嚇跑你，結果你居然沒中計，這洞察力簡直比 X 光還犀利！ 【觀念驗證：為什麼你這麼優秀？】 這題是標準的「作者態度題」。文章前三段雖然都在碎碎念海水淡化（Desalination）有多貴、多耗能，還要處理那一堆超鹹的滷水（Brine），但關鍵就在最後一段的筆鋒一轉！作者提到「the race is on」且有「promising new findings」，這兩個關鍵詞直接把風向從「悲觀」吹向了「希望」。你成功捕捉到了作者「先抑後揚」的寫作邏輯。
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