题型:任务型阅读 题类:模拟题 难易度:普通
北京市海淀区2018届高三英语第二次模拟考试试卷
Sleep and Teens--Biology and Behavior
How much sleep do teens need? And how much sleep are they realistically getting? Based on current data, most teens need about 9-plus hours to have the best or most suitable sleep night
Many factors combine to decrease sleep in adolescents. We can think in general of two major factors: biological, the brain processes that regulate the amount and timing of sleep, and behavior, all the psychological, parental, societal, cultural features of teen's life.
These changes lay the ground work for the biological night to occur later during the teen years than before. Circadian Rhythms (daily biological clock) seems to slow down as young people progress through the middle school years. At the same time, the sleep pressure system appears to change in a way that makes it easier to stay awake longer, though without changing the amount of sleep that is needed.
Moreover, many teens have a "technological playground" in their bedrooms: television, computer with 24/7 Internet access, telephones, electronic game stations, MP3 players, and so forth. These technologies provide instant and constant contact with peers. Societal and media pressure to consume these technologies is now higher than ever. Yet society also requires that teens go to school at a time of day that is at odds with their biological and social lives. So we see teens turn to caffeine, late-night Internet and cramming in activity after activity as a means to keep awake.
Problems emerge for lack of sleepFor some, grades begin to suffer as they struggle to keep awake during class and while doing homework. And others may simply feel moody, never knowing how to feel or do their best. Worse still, many teens suffer from both physical and mental illness.
The earlier teens can start this good sleep habit, the easier it will be for them to stay healthy, happy and smart.
A. Sleep experts recommend teens keep consistent sleep and wake schedule
B. Teens may schedule sleep like any other daily activity and make sleep a priority
C. Then they are trapped into a terrible situation where they would never get enough sleep
D. The sleep-wake bio-regulatory factors appear to change significantly during adolescence
E. Some teenagers struggle to wake up in the morning, often resulting in late or missed school
F. Teens may be driven to things that can wake them up because they'll fall asleep if they do not
G. However, it is indicated that most teens fall short of this goal, many by a considerable amount.
This Way to Dreamland Daydreaming means people think about something pleasant, especially when this makes them forget what they should be doing. Daydreamers have a bad reputation for being unaware of what's happening around them. They can seem forgetful and clumsy{#blank#}1{#/blank#}They annoy us because they seem to be ignoring us and missing the important things.But daydreamers are also responsible for some of the greatest ideas and achievements in human history{#blank#}2{#/blank#}Can you imagine what kind of world we would have without such ideas and inventions?So how can you come up with brilliant daydreams and avoid falling over tree roots or otherwise looking like a fool?First, understand that some opportunities(机会) for daydreaming are better than others. Feeling safe and relaxed will help you to slip into daydreams.{#blank#}3{#/blank#}And if you want to improve your chances of having a creative idea while you're daydreaming, try to do it while you are involved in another task—preferably something simple, like taking a shower or walking, or even making meaningless drawings.It's also important to know how to avoid daydreams for those times when you really need to concerntrate. “Mindfulness”, being focused, is a tool that some people use to avoid falling asleep.{#blank#}4{#/blank#}Finally, you never know what wonderful idea might strike while your mind has moved slowly away.{#blank#}5{#/blank#}Always remember that your best ideas might come when your head is actually in the clouds.
A. Having interesting things to think about also helps. |
B. They stare off into space and wander by themselves. |
C. Without wandering minds, we wouldn't have relatively, Coke or Post-it notes. |
D. At one time, daydreaming was thought to be a cause of some mental illnesses. |
E. It involves slow, steady breathing for self-control that helps people stay calm and attentive. |
F. Daydreams are often very simple and direct, quite unlike sleep dreams, which may be hard to understand. |
G. Therefore, it's a good idea to keep a notebook or voice recorder nearby when you're in the daydream zone. |
The UN has recognized the contributions of volunteers on Dec. 5, International Volunteer Day. Here, the four things are offered to consider before taking the leap into overseas volunteering.
Choose your organization carefully
{#blank#}1{#/blank#} volunteering may be a fundraising mechanism(筹资机制)for a development project. For others, volunteering is fundamental to their programs, and those serving take on professional roles in longer-term development.
{#blank#}2{#/blank#}
Volunteers want to help and make a difference, but most know this isn't a purely selfless act. You will learn new skills, broaden your horizons and come to better understand yourself and the world.{#blank#}3{#/blank#} Reflect on your motivations. You want to help reduce global poverty or protect the natural world, but what else? Have you always wanted to travel, but not as a tourist? Work with kids? When you understand your motivations, you'll be in a better position to choose the option that is right for you.
Work alongside the local community
Often times, travelers volunteer in isolation(隔离)from the local community in which they are working in.{#blank#}4{#/blank#} This enables you to ensure you are committing to a project that promotes long term and sustainable change.
A volunteer trip is just the beginning
{#blank#}5{#/blank#}Further ignite(点燃)the global change maker in you by taking your experience one step further when you return home. Spread the message of your transformative experience to others, helping to spark the change within them.
A. And that's all OK. B. Know why you're going. C. Don't assume you know it all. D. Communities always welcome volunteers. E. Volunteer travel is a life-changing experience. F. Some organizations require you to pay your own way, and often include a fee. G. Make sure to travel with organizations that have strong partnerships with local communities. |
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