1 . A leaked IPCC draft reports, “Widespread use across millions of square kilometers globally of tree-planting and bioenergy crops could have potentially serious consequences for food security and land degradation (退化).” In other words, more massive monocultures (单种栽培) and more bioenergy crops, fueled by more fertilizers, could damage the structure of the environmental soil and its capacity to absorb carbon.
Everyone knows that to help ease the increasing climate crisis, we need to plant new trees. It’s said that the earth could support an additional 9,000,000 square kilometers of forest, potentially hosting 500 billion trees capable of capturing more than 200 billion tonnes of carbon dioxide at maturity. It would be a serious help to the environment.
Bioenergy now holds a 50 percent share of the world’s renewables consumption—as much as hydro, wind, solar and all others combined. It’s good news, but not entirely. If we consider that increasing desertification and rising ocean levels will take away more arable (可耕种的) land, we arrive at a crucial “trilemma”(三难困境). Should we use our spare soil for agriculture, reforestation or bioenergy?
Such a question would make sense in a multilateral, harmonious world, not on a planet where the richest country cancels an environment-saving agreement, thus encouraging the most tropically-forested nation to set about cutting trees.
Last year, 36,000 square kilometers of forest was cut down. Wouldn’t it be better to start by stopping deforestation altogether? Animal farming takes up 77 percent of the world’s arable land and provides us with 18 percent of the calories. Shouldn’t we cut back on global meat consumption? Modern bioenergy is already available. Shouldn’t we get rid of first-generation biofuels, which are produced from food crops?
1. What’s the IPCC’s attitude to the widespread planting?| A．Ambiguous | B．Positive | C．Disapproving | D．Uncaring |
| A．Add some background information. | B．Summarize the previous paragraphs. |
| C．Provide some advice for the readers. | D．Introduce a new topic for discussion. |
| A．There is less sustainable energy for use. |
| B．No more land is available for bioenergy. |
| C．More trees are cut in the richest country. |
| D．Bioenergy can cause more climate problems. |
| A．Developing farmland as much as possible. |
| B．Planting trees to prevent global warming. |
| C．Using bioenergy to reduce environmental pollution. |
| D．Protecting present resources instead of developing new ones. |
2 . Albert Einstein’s 1915 masterpiece “The Foundation of the General Theory of Relativity” is the first and still the best introduction to the subject, and I recommend it as such to students. But it probably wouldn’t be publishable in a scientific journal today.
Why not? After all, it would pass with flying colours the tests of correctness and significance. And while popular belief holds that the paper was incomprehensible to its first readers, in fact many papers in theoretical physics are much more difficult.
As the physicist Richard Feynman wrote, “There was a time when the newspapers said that only 12 men understood the theory of relativity. I do believe there might have been a time when only one man did, because he was the only guy who caught on, before he wrote his paper. But after people read the paper a lot understood the theory of relativity in some way or other, certainly more than 12.”
No, the problem is its style. It starts with a leisurely philosophical discussion of space and time and then continues with an exposition of known mathematics. Those two sections, which would be considered extraneous today, take up half the paper. Worse, there are zero citations of previous scientists’ work, nor are there any graphics. Those features might make a paper not even get past the first editors.
A similar process of professionalization has transformed other parts of the scientific landscape. Requests for research time at major observatories or national laboratories are more rigidly structured. And anything involving work with human subjects, or putting instruments in space, involves piles of paperwork.
We see it also in the Regeneron Science Talent Search, the Nobel Prize of high school science competitions. In the early decades of its 78-year history, the winning projects were usually the sort of clever but naive, amateurish efforts one might expect of talented beginners working on their own. Today, polished work coming out of internships(实习) at established laboratories is the norm.
These professionalizing tendencies are a natural consequence of the explosive growth of modern science. Standardization and system make it easier to manage the rapid flow of papers, applications and people. But there are serious downsides. A lot of unproductive effort goes into jumping through bureaucratic hoops(繁文缛节), and outsiders face entry barriers at every turn.
Of course, Einstein would have found his way to meeting modern standards and publishing his results. Its scientific core wouldn’t have changed, but the paper might not be the same taste to read.
1. According to Richard Feynman, Einstein’s 1915 paper ________.| A．was a classic in theoretical physics |
| B．turned out to be comprehensible |
| C．needed further improvement |
| D．attracted few professionals |
| A．Unrealistic. | B．Irrelevant. |
| C．Unattractive. | D．Imprecise. |
| A．The application of research findings. |
| B．The principle of scientific research. |
| C．The selection of young talents. |
| D．The evaluation of laboratories. |
| A．What makes Einstein great? |
| B．Will science be professionalized? |
| C．Could Einstein get published today? |
| D．How will modern science make advances? |
With more cellphone companies designing models for children, many parents are attracted to buy their kids phones, and pay the bill. According to a July 2012 study, 56% of parents of children aged 8 to12 have given their children a cell phone. According to a recent YouthBeat survey, 12 is the magic number. It is the most common age for kids to get their first cell phone. But 13% of children aged 6 to 10 already have one. That’s more than one out of every 10 kids.
Cell phone supporters, including many parents, note that cell phones help kids keep in touch with their friends and families, whether to ask for a ride home from football practice or to call for help when stuck in an emergency (紧急情况). Besides, some cell phones designed for kids can be controlled with settings that allow the phone to only be used in parent-permission ways. What’s the harm in that?
However, other people are worried about the effects of cell phones on kids’ health and safety. They believe that sending text messages or fielding phone calls while doing homework makes it difficult for kids to stay focused，thus resulting in their poor school work. They also say that kids are spending too much time texting instead of talking to each other. “Our brains evolved (进化) to communicate face to face,” says Gary Small, a professor of psychiatry at the UCLA School of Medicine, in California. “A lot of this is lost with texting.”
And some experts are also concerned about possible health risks. They worry that radiation (辐射)released by cell phones could be harmful to young people. To be safe, they advise limiting talk time.
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4 . Why Black Friday Shoppers Still Crowd Stores
To many of us, the ideas of rushing out to a superstore the day after Thanksgiving is appealing. Why would anyone race to crowded stores when they could stay in with family, or watch college football? We can’t say we know the answer for sure. But we do feel amazed at those who pour into stores looking for Black Friday bargains. Seemingly, nothing can stop them. Not the weather. Not the crowds. And not the fact that hurrying to a store in the age of instant e-commerce seems so…last century.
To be sure, holiday shopping habits do appear to be shifting. The National Retail (零售) Federation has stopped breaking up its holiday sales numbers by whether they come from e-tail purchases or from physical stores. It’s a pretty good sign that retailers don’t want to bring further attention to the declining fortunes of brick-and-mortar stores.
But there is no denying that people still love going to stores. Actual shopping in actual places remains an important part of the holiday ceremony for millions of Americans. To many, it’s the difference between playing a sport and playing a video game. As commercial as stores may be, they are still places where actual human beings interact. In a store, the “courageous” shopper performs the approving act of finding a present. That item might be heavily promoted by the store, but it doesn’t drop into one’s cart. It is picked up and examined before a decision is made. Maybe it gets put back on the shelf when the shopper changes his or her mind. Maybe there is a conversation with a sales clerk. The process is not that different than it would have been decades ago.
Online, the shopper has barely logged in before being faced with disturbing algorithmic (大数据的) suggestions based on earlier purchases. This hardly qualifies as shopping. This hardly qualifies as thinking.
Perhaps we are reading too much into the Black Friday phenomenon. But we suspect one reason Black Friday remains is that it involves an act of resistance against the Internet age. That would hardly be unreasonable. There aren’t many studies showing that time spent in stores is bad for one’s health, while there are quite a few drawing a link between time spent online and depression. Perhaps the people crowding into stores aren’t the crazy ones after all.
1. What can we infer from the first two paragraphs?| A．Physical stores are not so popular as before. |
| B．People spend more on Black Friday bargains. |
| C．Americans have an unhealthy shopping habit. |
| D．Goods in stores are cheaper than those online. |
| A．they feel tired of shopping online |
| B．they think it is good for their health |
| C．they hope to pass down the holiday tradition |
| D．they can have real communication with others |
| A．Puzzling. |
| B．Unusual. |
| C．Out-of-date. |
| D．Understandable. |
| A．The psychology of shopping. |
| B．The development of retailing. |
| C．The influences of e-commerce. |
| D．The features of holiday economy. |
5 . As an old English saying goes, “Honesty is the best policy”. It is more than
If there were two people standing before you, a person
6 . We’ve all been there: in a lift, in line at the bank or on an airplane, surrounded by people who are, like us, deeply focused on their smartphones or, worse, struggling with the uncomfortable silence.
What’s the problem? It’s possible that we all have compromised conversational intelligence. It’s more likely that none of us start a conversation because it’s awkward and challenging, or we think it’s annoying and unnecessary. But the next time you find yourself among strangers, consider that small talk is worth the trouble. Experts say it’s an invaluable social practice that results in big benefits.
Dismissing small talk as unimportant is easy, but we can’t forget that deep relationships wouldn’t
even exist if it weren’t for casual conversation. Small talk is the grease(润滑剂) for social communication, says Bernardo Carducci, director of the Shyness Research Institute at Indiana University Southeast. ＂Almost every great love story and each big business deal begins with small talk,＂ he explains. ＂The key to successful small talk is learning how to connect with others, not just communicate with them.＂
In a 2014 study, Elizabeth Dunn, associate professor of psychology at UBC, invited people on their way into a coffee shop. One group was asked to seek out an interaction(互动) with its waiter; the other, to speak only when necessary. The results showed that those who chatted with their server reported significantly higher positive feelings and a better coffee shop experience. ＂It’s not that talking to the waiter is better than talking to your husband,＂ says Dunn. ＂But interactions with peripheral(边缘的) members of our social network matter for our well-being also.＂
Dunn believes that people who reach out to strangers feel a significantly greater sense of belonging, a bond with others. Carducci believes developing such a sense of belonging starts with small talk. ＂Small talk is the basis of good manners,＂ he says.
1. What phenomenon is described in the first paragraph?| A．Addiction to smartphones. |
| B．Inappropriate behaviours in public places. |
| C．Absence of communication between strangers. |
| D．Impatience with slow service. |
| A．Showing good manners. | B．Relating to other people. |
| C．Focusing on a topic. | D．Making business deals. |
| A．It improves family relationships. | B．It raises people’s confidence. |
| C．It matters as much as a formal talk. | D．It makes people feel good. |
| A．Conversation Counts | B．Ways of Making Small Talk |
| C．Benefits of Small Talk | D．Uncomfortable Silence |
