题型:任务型阅读 题类:模拟题 难易度:普通
北京市门头沟2019届高三英语一模试卷
A Diet Without Enough Protein Can Cause Depression
Depression is a condition so common, the World Health Organization (WHO) calls it "a leading cause of disability."
Difficulty in falling asleep, loss of appetite, and loss of ability to concentrate are just a few of the other effects of depression. WHO estimates that worldwide, at any one time, 350 million people suffer from the condition. While life events such as the loss of a spouse or a job may create a happening of depression, many cases come from within and are not caused by a life event.
Now scientists are working on a new aspect of cure: nutrition. The Indian Journal of Psychiartry reports that both before and during a happening of depression, those with the condition will show a "poor appetite…" Many cases of depression, if not most cases, affect those who don't eat properly.
So what does protein have to do with all this? It all comes down to amino acids (氨基酸). Proteins are made up of amino acids, chemicals known as the "building blocks of life." There are 20 different amino acids.
Both the human brain and nervous system use amino acids as a substance that creates a signal from one brain cell to another or one nerve cell to another, thus relaying information between the cells. What the final result then?
Since amino acids make up protein, a diet which lacks in protein will cause weaker communication between the brain cells. This lessens the signal being sent from one brain cell to the next during a thought. This is why depression can often express itself as anger or aggression.
A. The ultimate effect is how we think.
B. Don't ruin your appetite by eating between meals.
C. Skipping meals itself can create a depressed mood.
D. A new research suggests that nutrition can lessen some of the risks of depression.
E. India is perhaps the world's leader in researching the connection between diet and depression.
F. Many of them are made by the human body, but nine others, the "essential" amino acids, must be eaten in one's diet.
G. The process can lead to twisted signals, which can not only lead to depression, but also, according to many scientists, aggression.
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.
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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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