题型:任务型阅读 题类:真题 难易度:困难
2017年高考英语真题试卷(北京卷)含听力
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 synapscs 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. Ti's as if the brain is preserving its most important memories. C. Similarly, when people go for a few days without sleeping, they get sick. D. The processes take place to stop our brains becoming loaded with memories. E. That's why students do better in tests if they get a chance to sleep after learning. F. “Sleep is the price we pay for learning,” says Giulio Tononi, who developed the idea. G. Tononi's team measured the size of these connections, or synapses, in the brains of 12 mice. |
A. Now you're embarrassed and they're mad or hurt B. All result in a win-win situation C. Once you've done all you can to make things right again, move on D. Never feel ashamed of yourself E. you make someone else feel bad F. the moment will pass G. neither of those responses will make you look better |
Some embarrassing situation pack a double effect: not only do you embarrass yourself, but, {#blank#}1{#/blank#} You say to a friend that another friend is such a copycat (无主见的人), and then realize the copycat is standing right behind you. You imitate your teacher's unusual accent just as teacher walks in. {#blank#}2{#/blank#}
Making a joke now would make the situation even worse, so don't go there. Although you might feel like running away or even crying, {#blank#}3{#/blank#}. Instead, apologize, "I'm so sorry. That was really mean of me."
If you've been disrespectful to a teacher or a parent, accept whatever consequences without complaint. If you've hurt a friend, do your best to make it up to them. {#blank#}4{#/blank#}. If someone else bring it up, just say," I feel bad enough about that—can we just let it go, please?"
The next time you're stuck in an embarrassing moment, remind yourself that you're a strong person and you can get through this. Stay calm and act confident and {#blank#}5{#/blank#}.
试题篮