假设你是红星中学高一学生李华。你的英国笔友 Peter 对科学研究感兴趣，他来信请你介绍一位中国的科学家及其研究成果。请你给他回信，内容包括：
1. 科学家的姓名;
2. 科学家的研究成果；
3. 该研究成果的意义。
注意：1. 词数不少于 50；
2. 开头和结尾已给出，不计入总词数。
Dear Peter,
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours,
Li Hua
Travel Is Good For Your Health
Americans are losing their vacation days, leading to more stress, anxiety and other negative effects because of not taking time off from work. In fact, a report by Project: Time Off, shows U.S. employees took about 16 vacation days in 2013, down from about 20 in 2000. Apart from taking away yourself the chance to improve your productivity and work performance, not taking a break can lead to overloaded stress and other potentially damaging. 1.
After all, vacations offer the chance to relax and restore your health. 2. You should travel to new places because traveling somewhere new can enable you to put yourself in new surroundings and recharge your brain power.
3. According to Dr. Margaret J. King, the director of the Center for Cultural Studies & Analysis, “There are lots of psychological benefits when you travel from home and work to ‘third places’, not just experiencing the environment. With a short list of activities each day, freed up from the projects and relationships, the mind can reset, as does the body, with stress relief the main outcome.” she says.
Little sleep mixed with high stress can lead to anger and negative consequences on your cognitive performance and efficiency. Max Hirshkowitz, chairman of the board of the National Sleep Foundation says a vacation is a great opportunity to catch up on sleep. 4. “Keep that time,” he says. “Make it an important thing you need.”
Many studies suggest that travel can improve our emotional state. A 2014 survey conducted by Diamond Resorts International found over three-quarters of people said feeling happier when they planned a trip at least once a year. Dr. Leigh Vinocur, a certified physician and spokesperson for the American College of Emergency Physicians, isn’t surprised by the findings. “It’s hard to sit on a beautiful beach somewhere and think about paperwork or deadlines. That is why over three-quarters of people to the Diamond Resorts International survey reported feeling happier when they regularly had a vacation. Regular vacations while taking time for yourself and your family lowers your stress level. 5.” she says. Besides, studies show that looking back on the pleasant vacation may keep happiness long after your trip.
A.They have bad effects on your health, experts say.
B.Traveling has many advantages, with stress relief topping the list.
C.Travelers may be more active than sitting in an office chair all day.
D.Travel can help us reset our emotions and actually increase compassion.
E.But simply taking some time from your demanding workday schedule isn’t enough.
F.To feel more energized, the NSF recommends at least seven hours of sleep per night for adults.
G.It also decreases the production of all the stress hormones that contribute to damaging our health.
A number of studies show that sports and other physical activities can contribute to the development of self-esteem (a feeling of pride in oneself). For example, Canadian scientists found that sixth-grade students who were more physically active had considerably higher levels of self-esteem. A study in Switzerland found that teenagers who took part in sports clubs were healthier, including being better socially adjusted, feeling less anxious, and generally being happier about their lives. Similar findings were reported in a study of Latino students, where participation in school sport was found to be greatly associated with self-esteem.
There seems little doubt that part of the potency (潜能) of sports lies in their social setting. There are a lot of facts showing the importance of social connectedness (关联性) for healthy child and teenager development, and sports offer a popular and engaging setting for social interactions. Involvement in team sports has been positively associated with social acceptance and a sense of belonging, especially where such involvement is characterized by positive coaching, progressive skill development, and peer support.
But, the social setting of sports can exclude as well as include. There is now evidence that boys’ and girls’ experiences of sports can be very different, and this can affect the contribution they can make to the self-esteem of players. Peer acceptance seems to be an important factor in determining the relationship between sport participation and self-esteem, and girls can be particularly sensitive to negative judgments. And studies have found that many ‘girly’ boys and girls benefit most from non-competitive physical activities.
So, a note of caution ought to be sounded in case sports are considered to be a cure. Much of the literature on the most positive psychological (心理的) outcomes associated with childhood and youth sports stress the absolute importance of positive experiences. It will surprise no one that bullying, excluding or abuse experiences will harm, rather than support the development of self-esteem, and well-being in general. Sadly, it will also not be a shock to learn that many children’s introductions to sports are far from improving the quality of life.
The great developmental psychologist Jean Piaget argued that the foundations of self-esteem were laid between the ages of about 6 and 11 years of age. Importantly, this is also the time when children are most likely to be introduced to sports. We should know the importance of positive early sporting experiences for the development of both self-esteem and on-going participation in sports and other physical activities. Teachers, coaches, and parents have a responsibility to ensure that these experiences ‘catch’ as many children as possible, and for this to happen they need to remember ‘the principles of child development’: Children are not mini-adults.
Problems arise when adults forget these principles, and kid themselves into thinking that they are coaching future Olympians or Super stars. Unluckily, evidence suggests that talented children are most likely to stand out when they are given time to develop, to play, and to remain children.
Children are not miniature adults, and their enjoyment of sports (and their self-esteem) can suffer when adults forget this!
1.Studies in Switzerland and Latino showed teenagers who often join in sports _____.
A.build self-esteem earlier
B.have more good experiences
C.are more sensitive to judgments
D.are healthier both physically and mentally
2.In general, the author’s attitude toward the influence of sports on teenagers is _____.
A.positive B.critical
C.uncertain D.tolerant
3.According to the author, when children take part in sports, they _____.
A.will be happier about their lives
B.are more likely to be attracted by competitive sports
C.should be treated by coaches and parents as super stars
D.will build self-esteem if given positive comment and support
4.Which of the following would be the best title for the passage?
A.Children Should Take Part in Sports
B.Sports Offer You a Better Teenage Life
C.Sports Experience and Building Self-Esteem
D.People Should Treat Teenagers Like Miniature Adults
Climate Change Requires the World’s Attention
In 2013, a lot of people were shocked by a news photo of a dead polar bear that was found on Norway’s Arctic island of Svalbard. According to the scientists who found its dead body all that remained of the polar bear was “skin and bones”. An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This alarming case showed how the increase in temperature had an impact on Earth’s ecology.
Then what is causing the increase in the global average surface temperature? Climate scientists often mention a key climate process called the “greenhouse effect”, which has two common meanings: the “natural” greenhouse effect and the “man-made” greenhouse effect. The “natural” greenhouse effect, which helps keep the earth warm enough for people, plants and animals to live on, refers to the fact that heat from the sun enters the atmosphere and warms Earth’s surface as short-wave radiation. The heat is released back into space at longer wave lengths. Greenhouse gases in the atmosphere, such as methane (沼气) and carbon dioxide, trap some of the heat, keeping Earth’s climate warm and habitable. Without this process, Earth could not sustain life. However, the man-made greenhouse effect has now become a big problem. When people produce huge amounts of extra greenhouse gases by burning fossil fuels, more heat energy is trapped in the atmosphere and causes Earth’s surface temperature to rise quickly.
There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there will be a higher price to pay. In fact, news reports are frequently broadcast about extreme rainstorms and heat waves causing deaths and economic losses.
Continued greenhouse gas emissions (排放) will result in further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions. We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce. It is our responsibility to seize every opportunity to educate everyone about global warming, along with its causes and impacts, because it is all of us that share this planet. So what will you do to help?
1.The dead polar bear was mentioned in the first paragraph to _____?
A.show polar bears are endangered
B.raise the problem of global warming
C.raise the awareness of protecting animals
D.warn people of the damage caused by travelling
2.What is causing the rise of Earth’s surface temperature?
A.Methane. B.Carbon dioxide.
C.Heat from the sun. D.Man-made heat energy.
3.The rise of Earth’s surface temperature may result in _____.
A.higher cost of living B.better growth of plants
C.more extreme weather events D.speeding of animal reproduction
4.The last paragraph mainly tells us that _____.
A.policies are important to stop carbon dioxide emissions
B.the long-lasting effects of climate change is very serious
C.everyone should take action to reduce greenhouse gas emissions
D.it is the governments’ duty to control the process of global warming
Journey to the West
If you have a dream, go for it.
My dad talked of the jewel in China’s western part, Tibet Autonomous Region. Tibet was a region I wanted to see and discover but its remoteness and my inability to find the right time to go delayed my journey. After a few talks with my dad, we decided to take a pause in our lives for a few weeks in July 2019 to start an amazing adventure.
We started our journey on a Saturday morning at the Guangzhou train station in south China. We started the first leg of the journey admiring the mysterious mountains of south China. The next day it changed quite suddenly to the dry, waterless landscape of central-west China as we passed through Shanxi and Gansu provinces. That evening we arrived at Xining, Qinghai Province, where we got onto the Xining-Lhasa train.
We were greeted on the train with Tibetan yogurt. The train signs were also written in Tibetan, the beautiful handwriting matched its environment and people. The following afternoon we arrived in Lhasa. Lhasa, one of the highest-altitude cities in the world, is a gem hidden on the Qinghai-Tibet Plateau. We started our tour of the jewel by exploring the palace and watching local people do morning prays and dances in the park. Overlooking the Jokhang Temple, we enjoyed an amazingly beautiful breathtaking view, just like we had been in the fairyland. It’s a stunning (令人震惊的) golden temple in the middle of old Lhasa, which we visited next before wandering in the old quarters and Barkhor Street in the evening. Barkhor Street is the ideal place to try local food and buy local products.
The following day, we started our journey to the Qomolangma base camp by road from Lhasa. Along the way we stopped to admire the beautiful Yamdrok Lake, a huge freshwater lake that is one of the three largest sacred lakes (圣湖) in Tibet. Yaks (牦牛) in blankets and bells at the lake made for a picturesque impression of perfect countryside Tibet.
About a week later, the highlight came in the afternoon when we arrived at the Qomolangma base camp. We were staying in a guesthouse just next to the base camp. After dropping off our backpacks, we headed straight outside to see the magnificent Mt Qomolangma. There it was, the top of the mountain peeking through the clouds, astonishing us with its unbelievable height. We enjoyed the mountain waves and saw the beautiful clouds separated until the sunset over the peak, feeling I would have regretted for the rest of my life if I hadn’t made the journey.
1.The author wanted to go to Tibet Autonomous Region because _____.
A.his father wanted him to travel there
B.his father thought it was worth visiting
C.he was interested in the mysterious place
D.he wanted to go to the farthest place of China
2.The author thought the most exciting part of the journey was visiting _____.
A.Jokhang Temple B.Barkhor Street
C.Yamdrok Lake D.Mt Qomolangma
3.The underlined word “gem” in the fourth paragraph means _____.
A.smart genius B.precious stone
C.unique temple D.beautiful grassland
4.The author wrote this passage to tell us _____.
A.beautiful views are worth the risk you take
B.if you have a dream, you should try to make it happen
C.you can finally achieve your dream if you put your heart on it
D.traveling ten thousand miles is better than reading ten thousand books
4 Eco-Friendly Bikes to Ride This Summer
Nowadays, many drivers are searching for more environment-friendly ways to get around and are starting to look back to bikes. Bikes don’t require gas. In terms of convenience, bikes can be easier to park and can help riders get their daily exercise in.
Companies everywhere are beginning to take the traditional bike and adapt it to people’s needs. Below are eco-friendly bikes to consider adding to your morning ride.
1. Bamboobikes
Ccycles produces Bamboo Bikes. The company sources bamboo and carbon fiber joints for their bike frames. Bamboo is ideal for bikes because it can absorb significantly more shock than carbon fiber. It is also very lightweight compared to traditional bike materials, like steel. But bamboo is incredibly strong and can take on twice the compression force as steel.
2. Cowboy
Cow offers Cowboy, a bike hides the battery in its frame under the saddle. The removable battery takes about two and half hours to charge and has a range of roughly 31 miles, but the best part is the app features. The Cowboy app gives travelers a real time dashboard (仪器板) to check out their speed and distance. Riders never need to worry about getting lost since it has navigation and can pull up your route history from your ride states. This smart tech also gives riders updates about the bike’s status. The Cowboy has a high tech locking system so the owner is the only one who can start up the bike.
3. The Faraday Bicycle
Faraday ebikes have a 250W motor, and the battery can be fully charged in less than 4 hours. Faraday recently partnered with the organization One Tree Planted to help reforest California after the state underwent serious damage from wildfires that destroyed thousands of acres of land in the area. The company stepped up and donated $100 from every bike sold to plant 100 trees.
4. The Donky Bike
Wilson, who works for Donky, created The Donky Bike, a practical cargo bike. This bike was designed to easily carry a cargo load on the frame. Like any great workhorse, this bike was built with simple low-maintenance components and has a strong, durable frame.
1.Which bike can show you where you are?
A.Cowboy. B.Bamboobikes.
C.The Donky Bike. D.The Faraday Bicycle.
2.If you want to help reforest California, you can buy a bike from _____.
A.Faraday B.Ccycles
C.Donky D.Cow
3.The bike that Wilson created _____.
A.has a 250W motor B.carries a cargo on the frame
C.is lightweight but strong D.has a battery under the saddle
