题型：任务型阅读 题类：常考题 难易度：普通
山东省淄博实验中学、淄博五中2019届高三上学期英语第一次教学诊断试卷
Every animal sleeps, but the reason for this has remained foggy. When lab rats are not allowed to sleep, they die within a month.
One idea is that sleep helps us strengthen new memories. We know that, while awake, fresh memories are recorded by reinforcing (加强) connections between brain cells, but the memory processes that take place while we sleep have been unclear.
Support is growing for a theory that sleep evolved so that connections between neurons (神经元) in the brain can be weakened overnight, making room for fresh memories to form the next day.
Now we have the most direct evidence yet that he is right. The synapses in the mice taken at the end of a period of sleep were 18 per cent smaller than those taken before sleep, showing that the connections between neurons weaken while sleeping.
If Tononi's theory is right, it would explain why, when we miss a night's, we find it harder the next day to concentrate and learn new information — our brains may have smaller room for new experiences.
Their research also suggests how we may build lasting memories over time even though the synapses become thinner. The team discovered that some synapses seem to be protected and stayed the same size. "You keep what matters," Tononi says.
A. We should also try to sleep well the night before.
B. It's as if the brain is preserving its most important memories.
C. That's why students do better in tests if they get a chance to sleep after learning.
D. Similarly, when people go for a few days without sleeping, they get sick.
E. The processes take place to stop our brains becoming loaded with memories.
F. Tononi's team measured the size of these connections, or synapses, in the brains of 12 mice.
G. "Sleep is the price we pay for learning," says Giulio Tononi, who developed the idea.
Four Ways to Give Truly Meaningful Gifts
Buying someone you love a gift that expresses your truest feelings isn't always easy. But when you get it right, the joy they show is worth it. {#blank#}1{#/blank#}
Listen up.
While you may think it's a great idea to surprise someone by giving them something you think is meaningful, it's best to get them exactly what they have told you. For example, you heard friends say they wanted the newest bike but you bought them a gym membership instead. {#blank#}2{#/blank#} So get them what they've specially asked for.
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In the spirit of showing love, we might go big. However, we may not be thinking of what really makes the person happy. You might think buying your father the latest TV is perfect, but then when you get it home, it lights up the living room like a stadium and is totally wrong for the space. So think smart.
Keep it open.
Many of us may consider giving cash impersonal（没人情味的）. But this may save you some concern. The receiver can be allowed to choose whatever they want. In a recent survey of over 7,000 Black Friday shoppers, 39 percent said the receiver they were shopping for was “picky（挑剔）”. {#blank#}4{#/blank#}
Create an experience.
Visit websites where you can get the latest tickets for a play, buy a surf lesson, or even something unexpected like a flight lesson. {#blank#}5{#/blank#} For example, if your kids are into NASCAR, just imagine the look on their faces when you score them a ride at a race car driving school. So give them a time that they will remember to heart.
A. Ignore the size. B. Go for something big. C. Well, that was the wrong move. D .If possible, cut down the cost of the gifts. E. These are things that can create a lasting memory. F. Here's how to discover a gift your receiver will love. G. So save yourself the second guess and give cash instead. |
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