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三、(2026·名师原创)句子还原
KEY→P34
范畴:人与自然 主题:科学原理 体裁:说明文 难度:★★★★ 建议用时:6分钟 评价:/5
根据短文内容,从方框中选出适当的选项填入文中空缺处,使短文内容通顺完整。(有两项多余)
White noise has become a household term, but few people truly understand the fascinating science behind it. If we understand how white noise works, we can use it better. It can help us sleep better, pay attention more easily and solve hearing problems. 1.
White noise is named "white" because it is similar to white light which combines(组合) all colours of light that we can see. 2.
You might think that mixing all kinds of sounds together would create a noise that's unpleasant to hear. 3.
5.
Remember: White noise is usually safe and helpful to most people. But if you have hearing problems or other health problems, you should ask a doctor before using it.
A. Surprisingly, it's not like that at all.
B. You could even tell three drops apart.
C. Children can hear white noise clearly.
D. White noise can help solve different problems.
E. White noise brings together physics, brain science and daily use.
F. We just need to choose the right kind and sound level for ourselves.
G. So, white noise includes sounds of all frequencies(频率) that we can hear.
KEY→P34
范畴:人与自然 主题:科学原理 体裁:说明文 难度:★★★★ 建议用时:6分钟 评价:/5
根据短文内容,从方框中选出适当的选项填入文中空缺处,使短文内容通顺完整。(有两项多余)
White noise has become a household term, but few people truly understand the fascinating science behind it. If we understand how white noise works, we can use it better. It can help us sleep better, pay attention more easily and solve hearing problems. 1.
E
White noise is named "white" because it is similar to white light which combines(组合) all colours of light that we can see. 2.
G
You might think that mixing all kinds of sounds together would create a noise that's unpleasant to hear. 3.
A
The reason is that white noise drowns out other sounds. Think of the sound of one falling drop, like from a leaky(渗漏的) tap. That would be very different and hateful. Two drops would be the same. 4. B
But if there were 5 or 10 or 1,000 drops, you couldn't pick out each drop. Together they become a kind of quiet sound and lead you to sleep.5.
D
It can help worried people sleep and help those who have headaches sleep through their pain. It can be very useful to people with attention problems. White noise can help them pay attention to something.Remember: White noise is usually safe and helpful to most people. But if you have hearing problems or other health problems, you should ask a doctor before using it.
A. Surprisingly, it's not like that at all.
B. You could even tell three drops apart.
C. Children can hear white noise clearly.
D. White noise can help solve different problems.
E. White noise brings together physics, brain science and daily use.
F. We just need to choose the right kind and sound level for ourselves.
G. So, white noise includes sounds of all frequencies(频率) that we can hear.
答案
本文介绍了白噪声的原理、名字由来和作用。它包含所有可听频率，能掩盖杂音，帮助人们睡眠、集中注意力，使用时要根据自身情况选择。
1. E 根据上文介绍白噪声的作用可知，此处说明它涉及的领域。选项 E 表示白噪声结合了物理、脑科学和日常应用，符合语境。
2. G 根据上文“White noise is named 'white' because it is similar to white light which combines all colours of light that we can see.”可知，上文将白噪声类比白光，那么此处应延续类比逻辑，说明白噪声与白光的共性；选项 G“因此，白噪声包含我们能听到的所有频率的声音。”符合语境。
3. A 上文提到混合声音可能令人不适，下文转折解释白噪声掩盖了其他声音；选项 A“令人惊讶的是，事实根本不是如此。”通过 Surprisingly 衔接矛盾观点，逻辑连贯。
4. B 上文说“一滴水声会很刺耳，两滴水声也一样”，下文转折：五滴以上则无法分辨，所以此处应承接“两滴”到“多滴”的过渡，体现数量递增下的听觉变化；选项 B“你甚至能区分三滴水声。”符合语境。
5. D 下文列举了白噪声帮助睡眠和改善注意力的作用，所以此处应总领段落，概括白噪声的多功能性；选项 D“白噪声能帮助解决不同的问题。”符合段落大意。
1. E 根据上文介绍白噪声的作用可知，此处说明它涉及的领域。选项 E 表示白噪声结合了物理、脑科学和日常应用，符合语境。
2. G 根据上文“White noise is named 'white' because it is similar to white light which combines all colours of light that we can see.”可知，上文将白噪声类比白光，那么此处应延续类比逻辑，说明白噪声与白光的共性；选项 G“因此，白噪声包含我们能听到的所有频率的声音。”符合语境。
3. A 上文提到混合声音可能令人不适，下文转折解释白噪声掩盖了其他声音；选项 A“令人惊讶的是，事实根本不是如此。”通过 Surprisingly 衔接矛盾观点，逻辑连贯。
4. B 上文说“一滴水声会很刺耳，两滴水声也一样”，下文转折：五滴以上则无法分辨，所以此处应承接“两滴”到“多滴”的过渡，体现数量递增下的听觉变化；选项 B“你甚至能区分三滴水声。”符合语境。
5. D 下文列举了白噪声帮助睡眠和改善注意力的作用，所以此处应总领段落，概括白噪声的多功能性；选项 D“白噪声能帮助解决不同的问题。”符合段落大意。
