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阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

We are often told to pay attention to 1. our mothers tell us. Most of us enjoy listening to our mothers speaking. Scientists have found that our brains greatly prefer the voices of our own mothers to 2. of other people.

Scientists at the Stanford University, in the United States, recently looked into this. They scanned (扫描) children’s brains while they 3. (listen) to different sounds, including their mothers’ voices. They found that 97 percent of the time, children could recognize their mothers’ voices at once.

4. (hear) their mothers’ voices makes children’s brains more active. We 5. (usual) just use one part of our brain to deal with sounds when we hear something. But when we hear our mothers’ voices, many parts of the brain, including those in charge of reward and emotion, start to work as well.

Why do we respond so strongly 6. our mothers’ voices? It starts even before we’re born. When children are still in the womb (子宫) or have just been born, they hear their mothers talking. This makes babies feel 7. (comfort) and teaches them language and social skills, even though they are still very young. The babies learn to recognize their mothers’ voices as a rewarding sound. Later, when this sound is heard again, more attention 8. (pay) to it.

Some sounds are necessary for our 9. (survive) while others bring us pleasure. Both types are recognized by our brains as rewarding sounds. Most human voices are not recognized in this way, since we hear them so often. 10., mothers’ voices are different, as they bring us a lot of comfort.

高一英语语法填空中等难度题

少年,再来一题如何?
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