Don't be too surprised if you see a car going down the road without a driver in Beijing these days. {#blank#}1{#/blank#}Last month, Baidu began to test its self-driving cars on open roads in Beijing.

    {#blank#}2{#/blank#}Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self—driving cars.

    Self-driving cars are safer than regular cars. {#blank#}3{#/blank#}They can remove the stress of driving and allow disabled or blind people to get around more easily.

    {#blank#}4{#/blank#}In one test, researchers pointed a laser pointer (激光棒) at the car's sensors (传感器) while it was moving. The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.

    The software that is used to direct the cars may not be safe enough. {#blank#}5{#/blank#}When we use our computers or smartphones, they sometimes crash (崩溃) without any reason. But if this happened to a self-driving car, the result could be deadly. Improvements to the software could be a solution to this problem.

How to keep on your exercise plan during winter? Here I'll give you some suggestions.

To stay active during the winter, you should first make it as easy as possible to do your exercise. Second, make something different before you {#blank#}1{#/blank#}doing exercise. The following advice will give you some ideas for making winter exercise more comfortable and more enjoyable.

Put your sports clothes in the dryer. If you want to exercise outside, you might keep the clothes in the dryer for a few minutes before that. It's often harder to {#blank#}2{#/blank#}when it's cold outside. {#blank#}3{#/blank#}clothes fresh from the dryer is just one way to get your body warm.

Take a hot shower. If it's really cold outside, you might even try a quick shower to get yourself warm before you do exercise.

Walk indoors. Walking is a good way to {#blank#}4{#/blank#}. To get out of cold weather of winter, you can simply walk indoors, probably in the living area of your room. Walking indoors makes you {#blank#}5{#/blank#}and gives a warm temperature to do it.

    The 21st century discoveries about the human brain and its functioning have showed the surprising fact that human abilities are not fixed at birth. In other words, what you are able to do with your life is not fixed when you are born. It is not all in the genes (基 因 ). It is not just nature: nurture (教育, 培育) plays an important part in the moulding (塑造) of what a person is, and what he/she can be.

    Brain plasticity (可塑性) or neuroplasticity (神经可塑性) refers to the amazing ability of the human brain to modify (修改) its structure and functions according to the changes within the body and/or in the outer environment.

    In his book „The Brain that Changes Itself‟ psychiatrist and psychoanalyst Norman Doidge, M.D., offers an introduction to the great scientists strongly supporting neuroplasticity and the people whose lives they've changed. The book describes real life stories of stroke( 中 风 ) patients learning to speak again, and the amazing story of a woman born with half a brain that restructured itself to work as a whole. It is a book that changes the way we think about our brain, its nature, and its potential (潜能).

    The genes we receive from our parents are finite (有限的), no doubt about that. However, our brain's ability to develop is infinite. New brain cells are being born all the time, and to keep them alive and growing, we have to stimulate (刺激) them.

    Here lies the promise of neuroplasticity in the moulding of children into adults who are capable of realizing their potential. For, genius is nothing but a human being who has realized his /her inborn potential! What Mozart, Einstein and da Vinci had was inborn potential plus (和，外加) the right environment.

    All geniuses started life in exactly the same way. They had parents who supported the development of their individual gifts and talents. They had the right environment and stimuli (刺激， 刺激物) that led to the best development of themselves.

    You can think about your child's gifts as the merging (融合的) colours of a rainbow. The possibilities are endless. All children are born with three natural abilities that provide them with the potential to think like a genius: the abilities to think, to learn and to develop their own individual way of thinking and learning.

    Can your child be a genius? Yes, he/she can be, if you give him/her the right environment, the right stimuli and the right guidance.

Look at the picture! You can {#blank#}1{#/blank#} some school things(学习用品) in it, some {#blank#}2{#/blank#} and pencils, two erasers and two dictionaries. The blue eraser is {#blank#}3{#/blank#}. Itˈs big. The green eraser is Lucyˈs. She is my good {#blank#}4{#/blank#}. We are in the same(相同的) school. This is my English dictionary. What {#blank#}5{#/blank#} the Chinese {#blank#}6{#/blank#}? Oh, itˈs Lucyˈs. My English {#blank#}7{#/blank#} is Mr. Brown. {#blank#}8{#/blank#} first name is Bill. He is a good teacher. We thank him(他) {#blank#}9{#/blank#} his {#blank#}10{#/blank#}.

Many people take running as a way to keep fit. They like to run in hot weather and enjoy the feeling of being wet through with sweat (汗) while running. Cold weather during winter months, with low temperatures and freezing cold winds, may keep people from running in the open air.

However, a new study shows that the drop in temperature is a good reason to run. In fact, running in cold weather helps improve one's performance. Many runners might find it easier to run in winter than in hot weather. The body needs less water on a cold day than in warm weather. In addition, lower temperatures reduce stress on the body. When you run in cold weather, your heart rate is lower.

John Brewer is a professor of applied sports science at St. Mary's University in London. For this study, he and other researchers put a group of people into a room where summer and winter weather conditions are recreated. The test subjects were asked to run 10,000 meters under both conditions and their biological measurements were recorded and studied.From the study, every movement runners make produces heat. The heat can be really damaging unless the body can lose it. One way in which people lose heat is by sweating. The body loses heat through sweat. The body also loses it by transporting the blood to the surface of the skin and it puts more stress on the heart, especially in hot conditions because it's much harder to lose heat when the outside environment is warm. As the result shows, running in hot temperatures results in 6 percent higher heat rates.

When running in cold conditions, the body does not have to work hard to move blood to the skin surface. Therefore, it requires less energy. The most important thing for people who run in cold conditions is to wear the right clothing. Keep as dry as possible when exercising in low temperatures. Wear warm and light clothing to keep sweat away from your skin. So don't let winter weather keep you indoors. Simply get ready for the low temperatures and start running.

Walking around the city，you will see girls wearing hanfu on the underground or people wearing T—shirt with Chinese characters in the streets.A new trend （潮流） is getting popular in China.It's guochao or China—Chie.Guochao adds traditional Chinese culture into products

Guochao got people's attention in 2018.Before that，the market was controlled by foreign companies.There were few Chinese brands.To win the market share，many Chinese brands followed the footsteps of these Western brands.In 2018，but also included elements（元素） of traditional Chinese culture.It quickly caught people's attention at home and abroad.And it created amazing sales.

Later，many Chinese brands，from food，started to add Chinese culture into their products.Even the film and music industries made every effort to create Chinese styles."We want our products to be the ones that young people would like to share."They said.

These brands got what they wanted.Young people gradually converted their attention from Western culture to guochao.They accepted it with pleasure.What's more，they started to develop interest in traditional Chinese art and literature.Now they wear traditional clothes，practice Chinese calligraphy（书法）

No matter how guochao develops，there is one thing that won't change——people's confidence in our country's development and culture is growing.