修改时间：2024-07-13 浏览次数：342 类型：高考模拟
Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.
A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason is that crossing one leg over the other increases resistance, making it even harder for the blood to circulate and increase your blood pressure. Thus, you shouldn't have your legs crossed for more than 15 minutes, and it's important that you get up and walk around at least once every hour.
Crossing your legs can also lead to neck and back pain. Ideally, it's best for our bodies to sit with our feet planted flat on the floor. When you sit with your legs crossed your hips are in a twisted position, which can cause pressure on your lower and middle back and neck.
You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful. This is because when one leg sits on top of the other, it causes pressure on the veins and nerves in your legs and feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.
So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.
Microsoft has developed a new smart phone app that interprets eye signals and translates them into letters, allowing people with motor neurone disease to communicate with others from a phone.
The GazeSpeak app combines a smartphone's camera with artificial intelligence to recognize eye movements in real time and convert(改变) them into letters, words and sentences.
For people suffering from ALS（渐冻症）, also known as motor neurone disease, eye movement can be the only way they are able to communicate.
“Current eye-tracking input systems for people with ALS or other motor impairments are expensive, not robust under sunlight, and require frequent re-calibration and substantial, relatively immobile setups,” said Xiaoyi Zhang, a researcher at Microsoft who developed the technology.
“To mitigate the drawbacks…we created GazeSpeak, an eye-gesture communication system that runs on a smartphone, and is designed to be low-cost, robust, portable and easy to learn.”
The app is used by the listener by pointing their smartphone at the speaker. A chart that can be stuck to the back of the smartphone is then used by the speaker to determine which eye movements to make in order to communicate.
The sticker shows four grids(方格) of letters, which each correspond to a different eye movement. By looking up, down, left or right, the speaker selects which grids the letters they want belong to. The artificial intelligence algorithm（程序） is then able to predict the word or sentence they are trying to say.
How to Enjoy Life As a Teen
Are high school days equal to the "best years of your life"? Maybe not, but you can learn to make the most of your high school days.
Whether it's having a computer, having friends, having a good supply of food, a bed to sleep on, family that loves you, having a decent education or simply being born in this world. Be happy, and life will reward you. Remember that these are the last few years you will be able to enjoy yourself without having to worry about the responsibility of an adult, but make sure you prepare yourself for when you do become one.
Choose your friends wisely. Unlike what many articles state, you don't have to be popular and have a gazillion friends to be happy. Try to have friends that like you who you are, not just because you are wearing a certain brand of shoes or something like that. These are people who shop at the same store as you; not someone who will sympathize with you when your dog dies.
Participating in clubs, activities, and sports increases your chances of meeting new friends. While you only need 4 or 5 close friends, that doesn't mean you shouldn't try to meet new people. Participating gives you something to do instead of sitting bored at home and wallowing in self-pity.
You can pursue interests you enjoy. Video games, for example, are good if you're the type who can get into that kind of thing. Use your "hobby time" either to gain practical skills for college apps, job resumes, and scholarships or get into something else in the creative field like painting or dance.
Work at a job you can enjoy. Working is a great way to gain experience and to meet other people. When you do get out of college, interviewing companies will look at your prior work experience. If you can't find work, especially in this hard economic time, volunteer or make your own job.
A. Remember that the point of life is for you to enjoy it.
B. In fact, many of the "friends" you have when you are popular are not true friends.
C. Learn to appreciate small things.
D. Be sociable.
E. This will look great on your resume.
F. This is the time to start developing passions.
G. You should also find a hobby that is meaningful or practical.
I was walking around in a Big Bazar store doing a shopping, when I saw a cashier talking to a boy who didn't have enough money to buy what he wanted. The little boy was still holding the doll 1 his hand. At that time, I walked toward him and I asked him who he 2 to give this doll to. “It's the doll 3 my sister loved most. I wanted to 4 her for her Birthday.” His eyes were so sad while saying this.
“My Sister has gone to be with God. Daddy says that Mommy is going to see God very soon too, so I thought that she could 5 the doll with her to give it to my sister.” My heart 6 stopped. Then he showed me a very nice 7 of him. He then told me “I want mommy to take my picture with her so my sister won't 8 me, I love my mommy 9 I wish she doesn't have to leave me.”
I quickly 10 for my wallet and said to the boy. “Suppose we 11 again, just in case you do have enough money 12 the doll?” I added some of my money to his, without him seeing and we started to count it.
The little boy said, “God heard my 13 last night. Thank God for giving me enough 14 to buy it.”
Then I remembered two days before a local 15 reported an 16 in which a woman and a little girl were badly 17.The little girl died right away, and the mother was left in a 18 state. Was this the family of the little boy?
Two days 19 , I read in the newspaper that the woman had passed away.I couldn't stop myself from going to the 20 . Teary-eyed, I felt that my life had been changed forever.
If (give) the choice, a great many people would change at least one aspect of their appearance. They would request a doctor to give them a straighter nose, (big) lips, and so on.
Firstly, one's appearance is or her parents' blessing. After breast enlargement surgery, many women look sexier than before. , many of them are later diagnosed with mammary diseases. The more serious effect is they risk (be) unable to breast-feed. Secondly, the advocating such a practice will mislead people in the (judge) of beauty. The concept of beauty is quite rich in its content. It should include many virtues like honesty, diligence, and so on, which should form the real mainstream of our spiritual life. The practice and the debates about man-made beauty will confuse those who are to develop correct concept of beauty.
Concerning the above possible (harm) the practice may bring about, I am strongly against it and advocate seeking true and natural beauty. Besides, people, especially women, should lay more attention on the cultivation of their inner hearts. The inner beauty outweighs the outside beauty in the long run.
In 1878, when Margaret Wolfe Hungerford wrote “Beauty is in the eye of the beholder”, she was stating that there was no consistent（never changing）view on beauty. Standards of beauty change across time and cultural groups.
Traditions and fashions, like society itself, change and adapt with time. So it is reasonable that our ideas of beauty change as well. In 19th-century Europe, women used to wear corsets to achieve a body shape that is no longer considered healthy. Men would wear woolen shawls across their shoulders. It is hard to imagine that they would be seen as attractive in the 21st century. Nowadays, in the western world, one in every ten people has a tattoos or a form of body art. In the past, some cultures used tattoos as an addition to costumes, to show family associations or to mark criminals so that they could easily be recognized.
In contemporary society, culture remains a major part in determining our ideas of beauty. In some countries, young women follow slimming diets to lose extra kilos in preparation for their wedding day. In other cultures, looking thin for a husband-to-be is not what a woman desires at all—rather, looking a little overweight is considered more attractive.
With the influence of history, society and culture, there are no precise criteria which can be used to judge what is beautiful. Life long commitment and, indeed, the survival of society itself rely on people seeing beauty in difference and depth. The human race would soon die out if we could only see beauty within a set of limited criteria.
Physical beauty must also be accompanied by an attraction to something deeper within a person. This particular kind of attraction is found in a wide range of personal qualities, e.g. kindness, warmth, a healthy conscience, etc. judging the appeal of a person's inner beauty is much more subjective. It takes more than a casual glance to appreciate and it is much more important than physical beauty.
Beauty, therefore, has more than one dimension. We are influenced by our culture, our biology and our time in history to notice physical beauty quickly and easily, but it is inner beauty that requires us to truly see. Beauty is certainly in the eye of the beholder.
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