题型：任务型阅读 题类：常考题 难易度：普通
山东省烟台市第二中学2018-2019学年高一上学期英语冬学竞赛试卷（音频暂未更新）
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（进化） 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 （神经突触）in the mice taken at the end of a period of sleep were 18 percent 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 sleep, 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(保存) 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(装载) 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.
You want to be happy, who doesn't? However, whether you procrastinate(拖延), feed negative self-talk, or don't rest your mind, you lower your potential to create happiness.
Procrastination
You aren't in deadly danger if you procrastinate, but your system doesn't always take this information on board. You still react as though you are anxious and produce stress chemicals.
{#blank#}1{#/blank#} Your ability to see the big picture of life is reduced when you procrastinate. Therefore, you don't see as much joy.
Negative self-talk
{#blank#}2{#/blank#} Taking notice of what goes on in your head and putting positive change in action makes negative self-talk useful. Nevertheless, most people don't recognize negative self-talk as a pointer; they feed it until it grows out of control.
{#blank#}3{#/blank#}
Your mind contains an incredible amount of information and is more powerful than any computer many times over. However, if you give it too many tasks, you shut out peace of mind.
{#blank#}4{#/blank#} Thought-overload results in physical symptoms, like a racing heart and shortness of breath. Additionally, you might have sleeplessness, digestive problems and other symptoms of stress that reduce your happiness.
If you want to increase the odds of being happy, don't procrastinate. {#blank#}5{#/blank#} Similarly, don't overload your mind, give it a rest and you will soon notice you are happier.
A. Not resting your mind. B. Using your brain regularly. C. It is a human weakness to put things off. D. At the same time, don't feed negative self-talk. E. Self-talk can tell you how healthy you are emotionally. F. Additionally, as your system is nervous physically, your mind also closes off a little. G. Thinking about many things at once leads to a feeling of anxiety. |
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A. Start simply. B. Break it into small pieces. C. Draw a rough layout on a sheet of paper. D. Many websites are considered very interesting. E. Before you start building your site, do some planning. F. Think of your home page as the starting point of your website. G. These days, having a web address is almost as important as a street address. |
In the 60s, people asked about your astrological (about star) sign. In the 90s, they want to know your website. {#blank#}1{#/blank#} Your website is an electronic meeting place for your family, friends and potentially, millions of people around the world. Best of all, you may not have to spend a cent. The Web is filled with all kinds of free services and all it takes is some time and creativity.
{#blank#}2{#/blank#} Like the table of contents of a book or magazine, the home page is the front door. Your site can have one or more pages, depending on how you design it.
While web pages vary greatly in their design and content, most use a traditional magazine layout (版面设计). At the top of the page is a banner (横幅) GRAPHIC. Next comes a greeting and short description of the site. Pictures, text, and links to other websites follow.
{#blank#}3{#/blank#} Think about whom the site is for and what you want to say. Next, gather up the material that you want to put on the site.
While there are no rules you have to follow, there are a few things to keep in mind: {#blank#}4{#/blank#} If you want too much at the beginning, you may never get the site off the ground. You can always add to your site.
Less is better. Most people don't like to read a lot of long texts online. {#blank#}5{#/blank#}
Smaller is better. Since it can take a long time to download large files, keep the file sizes small.
Have the rights. Don't put any material on your site unless you are sure you can do it legally. Always remember to get the permission from the writer first.
Now it's time to roll up your sleeves and start building.
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