【推荐2】Dansh Boyd, who holds positions at Microsoft Research, New York University, and Harvard's Berkman Center for Internet and Society, has a pointed message for parents: Most everything we think we know about the way our kids are using the Internet is wrong. Boyd's new book, it's Complicated: The Social Lives of Networked Teens, makes the case that the Internet isn't nearly as scary or damaging to young people as many moms and dads believe. As the mother of a 16-yaer-old, I found most of it fascinating. Here are two of my biggest takeaways:

Technology is not turning our teens into social misfits.

Although the image persists that young people would rather test than talk, and prefer connecting of Facebook than hanging out in person, Boyd says this isn't true. "Most of the teens that I met ... were desperate for the opportunity to leave their homes to gather with friends," she writes.

The trouble is that in many communities, young people have less freedom than they once did because they are so over scheduled and because parents are worried about their safety. "The era of being able to run around after school as long as you are home before dark is long over." Boyd notes.

To make up for this lost freedom, teens have turned to their computers. "The success of social media must be understood partly in relation to this shrinking social landscape." Boyd explains. Facebook, Twitter. Instagram, Snapchat, and other sites "are not only new public spaces: they are in many cases the only 'public' spaces in which teens can easily communicate with large groups of their peers."

Adolescents aren't as Internet savvy as we like to think.

Although teens have been called "digital natives" for having grown up practically glued to their computers and smart-phones, they still remain simple in many ways about what they find online. After all, they're just kids.

"Many of today's teens are indeed deeply engaged with social media ... but this does not mean that they have the knowledge or skills to make the most of their online experiences," Boyd writes. "The so-called 'digital natives,' far from being useful, is often a distraction to understanding the challenges that youth face in the networked world."

One area in which young people need help is in learning to distinguish between valid and misleading sources of information. "Teens may make their own media or share content online," Boyd observes, "but this does not mean that they inherently have the knowledge or perspective to critically examine what they consume."

Yet many teachers, librarians, and, yes, parents do. "Even those who are afraid of technology," Boyd says, "can offer valuable critical perspective."

As a mom or dad, the most important thing for your kid to plug into is your hard-earned wisdom.

1. Danah Boyd's new book mainly talks about ________.

A．the correct and wise use of the Internet for young people

B．teens' real social lives online and advice for parents

C．measures parents can take to deal with the damaging Internet

D．fascinating takeaways for a mother of a 16-year-old

2. According to Boyd, why are teens nowadays easily considered social misfits?

A．Because they seem to prefer to communicate through social networks.

B．Because they are too over scheduled to hang out with friends in person.

C．Because parents require them to stay at home more for safety reasons.

D．Because social networks offer them convenience of communication

3. An "Internet savvy" person is one who ________.

A．tends to be cheated over the Internet all the time

B．is completely absorbed in social networks all the time

C．knows how to fully and wisely use the Internet

D．has the ability to distinguish right from wrong

4. Boyd may suggest that parents should ________.

A．provide kids with more chances to leave homes and gather with friends

B．build more public places for kids to communicate with their peers

C．provide kids with knowledge and skills to help them to digital natives

D．filter out the misleading sources of information online for their kids

【推荐3】阅读理解。阅读下列四篇短文，从每小题后所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该选项涂黑。
Though problems are a part of our lives, it certainly doesn’t mean that we let them rule our lives forever. One day or the other, you’ll have to stand up and say — problem, I don’t want you in my life.
Of course, we’ve been fighting troubles ever since we were born. Problems with friends, parents, girlfriends, husbands, and children — the list goes on. Apart from these, the inner conflicts within ourselves work, too. These keep adding to our problems. Problems come in different shapes and colors and feelings.
But good news is that all problems can be dealt with. Now read on to know how to solve your problems.
Talk, it really helps. What most of us think is that our problem can be understood only by us and that no talking is going to help. But the truth is that when you talk about, you’re setting free the negative energies that have been gathering within you. Talking helps you move on and let go.
Write your problems. Having a personal diary can also be of huge help if you don’t want a real person to talk with. When you write down your problems, you’re setting free all the tension from your system. You can try throwing away the paper on which you wrote your problems. By doing this, imagine yourself throwing away the problems from your life.
Don’t lose faith and hope. No matter what you lose in life, don’t lose faith and hope. Even if you lose all your money, family ..., you should still have faith. With faith and hope, you can rebuild everything that you lose.
Your problems aren’t the worst. No matter what problem you get in life, there’re another one million people whose problems are huger than yours. Tell yourself: when they can deal with them, why can’t I? Your problems might just seem big and worse, but in reality they can be removed.
Go about and solve your problems because every problem, however big or small, always has a way out.
1. What is the text mainly about?

A．How to find problems.

B．How to change problems.

C．How to live without problems.

D．How to deal with problems.

2. According to the text, the first paragraph is trying to ________.

A．upset the readers

B．encourage the readers

C．laugh at the readers

D．please the readers

3. What is the main idea of Paragraph 2?

A．There are different kinds of problems in our life.

B．Problems are too difficult to deal with.

C．We have to fight problems in our whole life.

D．We have more and more problems.

4. According to the text, when you talk about your problems to others, ________.

A．you will be completely understood by others

B．you can find a way out from others

C．you will create another problem

D．you can live on more easily

【推荐1】World Wildlife Day-- 3rd March 2020

Our planet is home to every lifeform we know.     1    

Humans are no different. We depend on wildlife and on the planet’s rich biodiversity for our survival and well-being. We might think we have fully bent nature to our needs, but we entirely depend on the resources of our biosphere to meet the needs of over seven billion people. And nature has its own needs.     2     After all, we are only one link in the chain of life. When we harm other links in the chain, we hurt the bond of life that unites us all.

    3     But we can prevent that. We must conserve the wild plants, animals, and ecosystems around us.     4     By doing so, we are protecting ourselves.

In 2020, World Wildlife Day celebrates biodiversity, including wild fauna and flora, in all its varied and beautiful forms.     5    

A．We must be careful not to overexploit it.

B．Today, unsustainable human activity could cause up to a million species to go extinct.

C．These come in all shapes and sizes – from the most unfamiliar to the ones you see every day.

D．We need one another for food and sustenance.

E．We must use our natural heritage wisely and sustainably.

F．We’re not always the kindest neighbors to each other.

G．Let’s work together to build a world that can truly sustain all life on Earth.

【推荐3】When it comes to eating, most of us don’t have to go very far. But for many bird species, finding food may mean traveling hundreds of thousands of kilometers.

A team of researchers from institutions in the UK and Ireland spent five years tracking (追踪) four species of seabird to monitor their travel patterns. It was discovered that over the five years, the species covered an area of 1.5 million square kilometers when hunting for food-almost four times the size of Japan.

The findings were published recently in the journal Ecological Applications. As part of the study, over 1,300 birds were fitted with GPS tags to track their movements. It was discovered that most of them search for fish in the same place-waters off the coast of Scotland.

As a result of this, organizations such as the Royal Society for the Protection of Birds (RSPB) will spend more time trying to preserve coastal Scotland.

“For the first time, this study provides us with a full map for each breeding colony (繁殖群体) of the feeding areas for some of our most important seabird species,” wrote the study’s lead author Ewan Wakefield, from the University of Glasgow.

“That means we can now protect the places these birds catch the fish they need to feed their hungry chicks.”

The findings could also affect the future building of offshore wind turbines (满轮机). Although wind turbines help to fight climate change by providing a green source of energy, their huge blades (刀片) are blamed for the deaths of thousands of birds each year, as they often fly into them.

Stuart Housden, director of RSPB Scotland, said in a news release that although climate change is a huge threat to both humans and nature alike, we should “invest in an energy system that works for both people and our natural heritage.”

To protect both nature and the environment, the RSPB supports the building of turbines in areas that won’t have “significant adverse (不利的) impacts on important bird populations or their habitats,” it wrote on its website.

1. What did the scientists from the UK and Ireland find about the four species of seabird?

A．They have totally different travel patterns.

B．They prefer to catch fish in places near their nests.

C．Climate change has influenced their hunting distance.

D．They can travel a very long distance to find food.

2. According to the article, why is the research important?

A．It shows what a perfect living environment for seabirds is.

B．It was the first to use GPS technology to track seabirds.

C．It could guide people on how to better protect seabirds.

D．It provides more information about the diet of seabirds.

3. Wind turbines are a threat to seabirds because ________.

A．they produce noise that could disturb seabirds

B．their strong airflow could influence the flight of seabirds

C．their big blades may kill the seabirds that fly by

D．they force seabirds to move away from their habitats

4. According to the Royal Society for the Protection of Birds, ________.

A．no more wind turbines should be built in the future

B．we should think of more measures to protect the climate

C．the government should invest more money to protect seabirds

D．we should consider wildlife when we build turbines in the future

【推荐1】Are you preparing for a big test? If so, you may want to play some basketball in between hitting the books. Doctors are starting to find more and more information that suggests a connection between exercise and brain development. Judy Cameron, a scientist at Oregon Health and Oregon Health and Science University, studies brain development. According to her research, it seems that exercise can make blood vessels(管), including those in the brain, stronger and more fully developed. Dr. Cameron claims this allows people who exercise to concentrate better. As she says, "While we already know that exercise is good for the heart, exercise can really cause physical changes in the brain."

The effects of exercise on brain development can even be seen in babies. Babies who do activities that require a lot of movement and physical activity show greater brain development than babies who are less physically active. With babies, even a little movement can show big results. Margaret Barnes, a pediatrician(儿科医生), believes in the importance of exercise. She thinks that many learning disabilities that children have in elementary school or high school can be traced back to a lack of movement as babies. "Babies need movement that stimulates their five senses. They need to establish a connection between motion and memory. In this way, as they get older, children will begin to associate physical activity with higher learning," says Margaret.

Older people can beef up their brains as well. Scientists from 11 universities studied a group of seniors ranging in age from seventy to seventy-nine. Their study showed a short-term memory increase of up to 40 percent after exercising just three hours a week. The exercise does not have to be very difficult, but it does have to increase the heart rate. Also, just like the motion for infants (婴儿), exercise for older people should involve some complexity. Learning some new skills or motions, such as with yoga or tai-chi, helps to open up memory paths in the brain that may not have been used for a long time.

For most people, any type of physical activity that increases the heart rate is helpful. The main goal is to increase the brain's flow of blood. And your brain can benefit from as little as three hours of exercise a week.

1. What is the best title of this passage?

A．How to exercise

B．How exercise helps the brain

C．How to get good scores on a test

D．How the brain can change

2. According to the reading, what is the connection between exercise and brain development?

A．Exercise makes us stupid.

B．The brain needs special mental exercise.

C．The more exercise, the bigger the brain.

D．Physical exercise helps us think better.

3. The mini amount of excises required to gain any benefit is ________.

A．three hours per week

B．40hours per week

C．three hours per day

D．40hours per month.

4. Why does the author think that yoga is fit for seniors?

A．It is easy to learn.

B．It can be done in groups.

C．It does not increase the heart rate.

D．It includes learning new motions.

【推荐3】Average age is rising around the world—a demographic (人口统计) change that may pose a significant challenge to efforts to slow down climate change.

Hossein Estiri at Harvard University and Emilio Zagheni of the Max Planck Institute for Demographic Research, Germany, have found that energy use increases as we get older, and not just because we tend to get wealthier. An ageing population could mean a greater proportion of society with higher energy use, their study suggests.

They combined two decades, worth of data from thousands of US households and used this to build a model to reveal how energy use varied across 17 age groups between 1987 and 2009. They found that, on average, children’s energy consumption climbs as they grow up, before dipping slightly when they leave home. Consumption then rises again when people hit their 30s, before briefly dropping after 55, and then beginning to climb again. The study involved factors such as income, local climate and the age, type and size of a person’s home. The increase in energy use at various points in our lifespan (寿命) seems to be the result of life style and how our needs change as we age.

Why does demand grow so much in our 30s?“We need more of everything. More space, a bigger TV two fridges,” says Estiri. The study found that, in warmer parts of the US, energy use increases in people over the age of 65—probably as a result of increased use of air conditioning, This suggests that there is a feedback effect between climate change and an ageing population that will only make matters worse.

Heat waves have become more common in the US in recent years and are expected to become more frequent due to global warming. More older people using more electrical energy to keep cool as temperatures rise could add to emissions, and thus drive more warming until our energy supply becomes entirely fossil fuel-free.

“This confluence of population, ageing and climate change on energy demand is really important to start thin king about,” says Estiri. Benjamin Sovacool at the University of Sussex, UK, says the work shows the importance of demographics when it comes to cutting carbon emissions. Most modelling of climate change mitigation (减缓气候变化的模型) assumes people’s energy consumption either stays the same or only changes by a small amount over time.

“This study directly challenges that entire body of research by forcing it to fight with the temporality and complexity of the consumption of energy,” says Sovacool.

Catherine Mitchell at the University of Exeter, UK, says the research could have an important influence on policy makers. “What the paper says is that there is a lot of work about how buildings use energy, but probably not enough about how the people in them use energy,” she says.

1. By saying “not just because we tend to get wealthier” in Paragraph 2, the writer probably means that      .

A．poor people can’t bring down the high demand for energy

B．a comfortable life is not the main cause of in creased energy use

C．there are some other reasons leading to the increase in energy consumption

D．people being wealthy or not has nothing to do with the rise of energy consumption

2. The underlined word “confluence” in Paragraph 6 has the similar meaning to         .

A．change

B．meeting

C．decrease

D．possibility

3. What is the shortcoming of most modeling of climate change mitigation?

A．It is expensive and difficult to promote.

B．It overestimates the household energy consumption.

C．It did not take climate change adaptation into account.

D．It regards energy consumption as stable or as only slightly changing.

4. What can we learn from the last paragraph?

A．More emphasis should be put on people’s energy use.

B．The government can't do much without the support of the study.

C．It is the buildings, not the people in side, that consume the majority of the energy.

D．Policymakers have been working on how to cut down people’s energy use.