1 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.
That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.
But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.
One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.
“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”
Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.
1. Why do researchers and government agencies work on cooling the earth?| A．To prevent natural disasters. | B．To win more time to reduce gas emissions. |
| C．To imitate volcanic eruptions. | D．To encourage more people to bur fossil fuels. |
| A．More volcanoes will throw out. |
| B．More solar energy will go into space. |
| C．More disasters will endanger the future of the world. |
| D．People will keep burning fossil fuels to keep warm. |
| A．He thinks more research remains to be done. |
| B．He is optimistic about the effect of cooling the earth. |
| C．He is concerned about the reduction in agriculture production. |
| D．He disapproves of the practice of solar climate intervention. |
| A．The rainfall pattern of a region. |
| B．The modest drop in temperature. |
| C．The number of extreme weather events. |
| D．The injection amount of aerosol. |
2 . You are given many opportunities in life to choose to be a victim or creator. When you choose to be a victim, the world is a cold and difficult place.“They” did things to you which caused all of your pain and suffering.“They” are wrong and bad, and life is terrible as long as “they” are around.Or you may blame yourself for all your problems, thus internalizing(内化)your victimization.The truth is, your life is likely to stay that way as long as you feel a need to blame yourself or others.
Those who choose to be creators look at life quite differently.They know there are individuals who might like to control their lives, but they don't let this get in the way.They know they have their weaknesses, yet they don't blame themselves when they fail.Whatever happens, they have choice in the matter.They believe their dance with each sacred(神圣的)moment of life is a gift and that storms are a natural part of life which can bring the rain needed for emotional and spiritual growth.
Victims and creators live in the same physical world and deal with many of the same physical realities, yet their experience of life is worlds apart.Victims relish(沉溺)in anger, guilt, and other emotions that cause others--and even themselves---to feel like victims, too.Creators consciously choose love, inspiration, and other qualities which inspire not only themselves, but al1around them.Both victims and creators always have choice to determine the direction of their lives.
In reality, all of us play the victim or the creator at various points in our lives.One person, on losing a job or a special relationship, may feel as if it is the end of the world and sink into terrible suffering for months, years, or even a lifetime.Another with the same experience may choose to first experience the grief, then accept the loss and soon move on to be a powerful creative force in his life.
In every moment and every circumstance, you can choose to have fuller, richer life by setting a clear intention to transform the victim within, and by inviting into your life the powerful creator that you are.
1. What does the word “they” in Paragraph 1 probably refer to?| A．People and things around you. | B．Opportunities and problems. |
| C．Creators and their choices. | D．Victims and their sufferings. |
| A．seem willing to experience failures in life | B．possess the ability to predict future life |
| C．handle ups and downs of life wisely | D．have potential to create something new |
| A．To define victims and creators. |
| B．To evaluate victims against creators. |
| C．To explain the relationship between victims and creators. |
| D．To suggest the transformation from victims to creators. |
| A．strong attachment to sufferings in life pulls people into victims. |
| B．people need family support to deal with challengers in life. |
| C．it takes creators quite a long time to get rid of their pains. |
| D．one's experiences determine his attitude toward life. |
3 . The driver who cuts you off in traffic.The neighbors who don't pick up after their dog.Situations such as these get our hearts racing and send our stress levels skyrocketing.Anger isn't a pleasant feeling.Some of us bottle up the emotion, while others explode in a wild rage (狂怒).Both habits do considerable harm to our bodies, our minds, and our relationships.
“Anger may fee1 uncomfortable and a lot of people think they have to get rid of their anger," says Patrick Keelan, a registered psychologist in Calgary, Alberta.“But anger is an emotion built into us to signal that something needs to be addressed.When we take notice of that signal and actually wrestle with the problem instead of turning a blind eye to it, we' re usually much better for it.”
Unfortunately, many of us have been conditioned to keep our emotions hidden.Increasingly,research is suggesting that this can have long-term effects on our health.Investigators at the University of Rochester noticed that people who contain their emotions tend to live shorter lives.When we're angry, stress hormones are released, which can make us more likely to develop a wide range of diseases, including diabetes, depression, immune related conditions.
Is it better, then, to scream and howl whenever something makes you mad? That's probably the reason why“rage rooms" have popped up in many American cities, where folks are invited to let steam off by violently smashing (打碎) stuff in a“safe" environment.However, the research indicates that when people display anger aggressively, it can actually increase the intensity of the anger -- and increase the likelihood of aggressive actions in the future.It doesn't take much imagination to predict how such behavior can affect your relationship with your spouse, your kids, or your colleagues.It also hurts your health.A large 2016 study at McMaster University found that people are more than twice as likely to have a heart attack after an angry explosion.
If we shouldn't bottle up our angry feelings but aggressive behavior isn't healthy either, how should we handle things that tick us of? It's the extreme highs and lows that cause the damage.If you're able to apply techniques that smooth out some of those peaks and valleys, you can have a gentler ride.
1. What does the underlined phrase“bottle up" in paragraph 1 mean?| A．Build up. |
| B．Hold back. |
| C．Let off. |
| D．Bring out. |
| A．Uncomfortable and avoidable. |
| B．Terrible and threatening. |
| C．Confusing and complex. |
| D．Normal and natural. |
| A．It leads to people's depression. |
| B．It warns people against violence. |
| C．It adds to people's anger. |
| D．It helps people to calm down. |
| A．Possible causes of anger. |
| B．Tips on handling anger. |
| C．Possible harm of anger. |
| D．Tips on avoiding anger. |
4 . Some students get so nervous before a test. They do poorly even if they know the material. Sian Beilock, a professor at the University of Chicago in Illinois, has studied these highly anxious test-takers. The students start worrying about the results. And when we worry, it actually uses up attention and memory resources（资源）.
Professor Beilock and another researcher, Gerardo Ramirez, have developed a possible solution. Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test.
The researchers tested the idea on a group of twenty anxious college students. They gave them two short maths tests. After the first one, they asked the students to either sit quietly or write about their feelings about the upcoming second test.
Professor Beilock says those who sat quietly scored（得分） an average of 12% worse on the second test. But the students who had written about their fears improved（提高） their performance by an average of 5%. Next, the researchers used younger students in a biology class. They told them before final exams either to write about their feelings or to think about things unrelated（不相关的） to the test. Professor Beilock says highly anxious students who did the writing got an average grade of B+, compared to a B-for those who did not.
"What we showed is that for students who are highly test-anxious, and who'd done our writing intervention（干预）, all of a sudden there was no relationship between test anxiety and grades. They were performing just as well as their classmates who don't normally get nervous in these tests."
But what if students do not have a chance to write about their fears immediately before an exam? Professor Beilock says students can try it themselves at home or in the library and still improve their performance.
1. What do the students start worrying about before an exam?| A．Whether they can pass the exams. |
| B．What other students do during the test. |
| C．Whether they have remembered the materials. |
| D．What kind of problems they will meet on the test paper. |
| A．Making the students focused on the test. |
| B．Asking the students to sit quietly before the test. |
| C．Having the students write about their worries about the test. |
| D．Asking the students to direct the attention away from the test. |
| A．became less nervous before the test |
| B．were better at controlling their feelings |
| C．did worse than those who wrote about their feelings |
| D．did better than those who wrote about their feelings |
| A．writing about our worries before an exam can work a bit |
| B．we can only write about our worries right before an exam |
| C．the best place to write about our worries is in the test room |
| D．it doesn't matter where we write about our worries before an exam |
5 . For many parents, raising a teenager is like fighting a long war, but years go by without any clear winner. Like a border conflict between neighboring countries, the parent-teen war is about boundaries: Where is the line between what I control and what you do?
Both sides want peace, but neither feels it has any power to stop the conflict. In part, this is because neither is willing to admit any responsibility for starting it. From the parents’ point of view, the only cause of their fight is their adolescents’ complete unreasonableness. And of course, the teens see it in exactly the same way, except oppositely. Both feel trapped.
In this article, I’ll describe three no-win situations that commonly arise between teens and parents and then suggest some ways out of the trap. The first no-win situation is quarrels over unimportant things. Examples include the color of the teen’s hair, the cleanliness of the bedroom, the preferred style of clothing, the child’s failure to eat a good breakfast before school, or his tendency to sleep until noon on the weekends. Second, blaming. The goal of a blaming battle is to make the other admit that his bad attitude is the reason why everything goes wrong. Third, needing to be right. It doesn’t matter what the topic is—politics, the laws of physics, or the proper way to break an egg—the point of these arguments is to prove that you are right and the other person is wrong, for both wish to be considered an authority—someone who actually knows something—and therefore to command respect. Unfortunately, as long as parents and teens continue to assume that they know more than the other, they’ll continue to fight these battles forever and never make any real progress.
1. Why does the author compare the parent-teen war to a border conflict?| A．Both are about where to draw the line. |
| B．Both can continue for generations. |
| C．Neither has any clear winner. |
| D．Neither can be put to an end. |
| A．The teens tend to have a full understanding of their parents. |
| B．The teens agree with their parents on the cause of the conflict. |
| C．The teens cause their parents of misleading them. |
| D．The teens blame their parents for starting the conflict. |
| A．give orders to the other |
| B．know more than the other |
| C．gain respect from the other |
| D．get the other to behave properly |
| A．Solutions for the parent-teen problems. |
| B．Examples of the parent-teen war. |
| C．Causes for the parent-teen conflicts. |
| D．Future of the parent-teen relationship. |
6 . A build-it-yourself solar still(蒸馏器) is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it’s an excellent water collector. Unfortunately, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes. The only components required, though, are a 5＇×5＇ sheet of clear or slightly milky plastic, six feet of plastic tube, and a container— perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.
To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in the cup and the rest of the line runs up — and out — the side of the hole.
Next, cover the hole with the plastic sheet, securing the edges of the plastic with dirt and weighting the sheet’s center down with a rock. The plastic should now form a cone(圆锥体) with 45-degree-angled sides. The low point of the sheet must be centered directly over, and no more than three inches above, the cup.
The solar still works by creating a greenhouse under the plastic. Ground water evaporates (蒸发) and collects on the sheet until small drops of water form, run down the material and fall off into the cup. When the container is full, you can suck the refreshment out through the tube, and won’t have to break down the still every time you need a drink.
1. What do we know about the solar still equipment from the first paragraph?| A．It’s delicate. | B．It’s expensive. |
| C．It’s complex. | D．It’s portable. |
| A．The tube. | B．The still. |
| C．The hole. | D．The cup. |
| A．Dig a hole of a certain size. | B．Put the cup in place. |
| C．Weight the sheet’s center down. | D．Cover the hole with the plastic sheet. |
| A．the plastic tube | B．outside the hole |
| C．the open air | D．beneath the sheet |
