Ever since they were first put on the market in the early 1990s, genetically modified (GM, 转基因) foods have been increasingly developed and marketed in many countries in the world, mainly on the basis of their promise to end the worldwide food crisis. But can GM technology solve world hunger problems? Even if it would, is it the best solution?
Despite what it promises, GM technology actually has not increased the production potential of any crop. In fact, studies show that the most widely grown GM crop, GM soybeans, has suffered reduced productivity. For instance, a report that analysed nearly two decades of research on major GM food crops shows that GM engineering has failed to significantly increase US crop production.
Something else, however, has been on the rise, While GM seeds are expensive, GM companies tell farmers that they will make good profits by saving money on pesticides（杀虫剂）. On the contrary, US government data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional crops. “The promise was that you could use less chemicals and boost production. But neither is true,” said Bill Christison, President of the US National Farm Coalition.
At the same time, the authors of the book World Hunger: Twelve Myths argue that there actually is more than enough food in the world and that the hunger crisis is not caused by production, but by problems in food distribution and politics. These indeed deserve our efforts and money. Meanwhile, the rise in food prices results from the increased use of crops for fuel rather than food, according to a 2008 World Bank report.
As a matter of fact, scientists see better ways to feed the world. Another World Bank report concluded that GM crops have little to offer to the challenges of worldwide poverty and hunger, because better ways out are available, among which “green” farming is supposed to be the first choice.The author develops the second paragraph mainly .
| A．by classification | B．by comparison |
| C．by example | D．by process |
What does the underlined word “boost” in the third paragraph probably mean?
| A．Control. | B．Evaluate | C．Obtain. | D．Increase. |
GM companies promise farmers that they will benefit from ______________.
| A．practicing “green” farming |
| B．use of less chemicals |
| C．fair distribution of their crops |
| D．using more crops for fuel |
Which of the following best describes the attitude of the author towards GM technology?
| A．Optimistic | B．Defensive | C．Disapproving | D．Casual |
The bed should be reserved as a place for sleep, but people tend to read an iPad a lot in bed before they go to sleep.
Charles Czeisler, a professor at Harvard Medical School, and his colleagues got a small group of people for an experiment. For five days in a row, the people read either a paper book or an iPad for four hours before sleep. Their sleep patterns were monitored all night. Before and after each trial period, the people took hourly blood tests to paint a day-long picture of just how much melatonin (褪黑激素) was in their blood at any given time.
When subjects read on the iPad as compared to the paper books, they reported feeling less sleepy at night and less active the following morning. People also took longer to fall asleep on the iPad nights, and the blood tests showed that their melatonin secretion (分泌) was delayed by an hour and a half.
The researchers conclude in today's journal article that given the rise of e-readers and the increasingly widespread use of e-things among children and adolescents, more research into the long-term consequences of these devices on health and safety is urgently needed. Czeisler and colleagues go on, in the research paper, to note：“Reading an iPad in bed may increase cancer risk.”
However, software has been developed that can reduce some of the blue light from the screens of phones and computers according to time of day, and there are also glasses that are made to filter (过滤) short wavelengths. While they seem like a logical solution for the nighttime tech users, it needs more research.In Charles Czeislers experiment, all the subjects were asked to______.
| A．sit in a row and receive the strict tests |
| B．have their sleep patterns observed all night |
| C．read a paper book and an iPad at the same time |
| D．have their blood tested per hour during the trial |
The third paragraph tells us the iPad readers were likely to____________.
| A．feel less sleepy and tired in the day |
| B．fall asleep more easily after reading |
| C．become less energetic the next morning |
| D．have a lot more melatonin secretion |
The special software recently developed can______.
| A．remove the blue light from your devices completely |
| B．help prevent eyes being harmed by short wavelength |
| C．weaken the harm done by doing nighttime e-reading |
| D．be used in all the e-things widely and safely |
Which of the following can be the best title for the text?
| A．No e-reading in bed before sleep |
| B．New software for night e-readers |
| C．Wrong behaviors before bedtime |
| D．No games on iPad in bed |
Since Edmund Hillary and Tenzing Norgay climbed Mount Everest, Mount Qomolangma’s peak is no longer a lonely place and is turning into a trash heap.
So far, more than 350 climbers have successfully reached the peak. And they have complained about waiting for hours in the bottlenecks (狭窄路段) on the way to the peak, a situation that isn’t just uncomfortable — it’s cold and windy up there — but downright dangerous. If bad weather strikes, climbers can and do die.
As a matter of fact, the dangerous crowds aren’t the only problem on Qomolangma. All those climbers need to bring a lot of gear—and much of them ends up being left on the mountain, sometimes even the peak itself. Mount Qomolangma is becoming the world’s largest dump. Here’s mountaineer Mark Jenkins writing in National Geographic about the state of Qomolangma: “The two standard routes, the Northeast Ridge and the Southeast Ridge, are disgustingly polluted with oxygen cans and torn tents everywhere.”
But the good news is that some mountaineers are taking it upon themselves to clean up Qomolangma. Mountianeer Paul Thelen and his friend Eberhard Schaaf are part of the annual Eco Everest Expedition, which has been cleaning up rubbish from base camps to the peak since 2008. So far they’ve collected over 13 tons of garbage.
Some of that rubbish is even being used for a higher purpose. As part of the Mount Everest 8844 Art Project, a group of 15 artists from Nepal collected 1.5 tons of garbage brought down the mountain by climbers. They’ve transformed the cans and oxygen tanks—and in one case, part of the remains of a helicopter—into 74 pieces of art that have already gone on exhibition in Nepal’s capital. Part of the profit from sales will go to the Everest Peakers Association, which has helped collect tons of rubbish on the slopes of the mountain.What does the underlined word “gear” mean?
| A．Equipment for climbing mountains. |
| B．The food climbers brought onto the mountain. |
| C．Some important machines used for the bottlenecks. |
| D．Some rubbish found on the mountain. |
The group of 15 Nepali artists_________.
| A．created works of art using rubbish from Qomolangma |
| B．were employed by the Everest Peakeers Association |
| C．climbed Qomolangma and collected 1.5 tons of trash |
| D．painted 74 beautiful pictures of Mount Qomolangma’s peak |
What can be the best title for the text?
| A．Eco Everest Expedition Proves Successful |
| B．Qomolangma Has Become A Huge Mess |
| C．Test Yourself Against Qomolangma |
| D．Recycle Rubbish On Qomolangma |
Cleverness is a gift while kindness is a choice．Gifts are easy—they’re given after all．Choice can be hard．
I got the idea to start Amazon 16 years ago．I came across the fact that the Internet usage was growing at 2300 percent per year．I’d never seen or heard of anything that grew that fast，and the idea of building all online bookstore with millions of titles was very exciting to me. I had just turned 30 years old，and I’d been married for a year．I told my wife MacKenzie that I wanted to quit my job and go to do this crazy thing that probably wouldn’t work since most start-ups don’t and I wasn’t sure what to expect．MacKenzie told me I should go for it．As a young boy，I’d been a garage inventor．I’d always wanted to be all inventor，and she wanted me to follow my passion．
I was working at a financial firm in New York City with a bunch of very smart people and I had a brilliant boss that I much admired．I went to my boss and told him I wanted to start a company selling books on the Internet．He took me on a long walk in Central Park，listened carefully to me，and finally said，“That sounds like a really good idea，but it would be an even better idea for someone who didn’t already have a good job．”That 1ogic made some sense to me，and he convinced me to think about it for 48 hours before making a final decision．Seen in that light,it really was a difficult choice，but finally，I decided I had to give it a shot．I didn’t think I’d regret trying and failing．And I suspected I would always be haunted by a decision to not try at all.
After much consideration ，I took the less safe path to follow my passion ，and I’m proud of that choice．For all of us，in the end，we are our choice．What inspired the author with the idea of building an online bookstore?
| A．His dream of being an inventor． |
| B．The support of his wife． |
| C．The greatly increasing usage of the Internet． |
| D．Millions of exciting titles, |
Which of the following is closest in meaning to the underlined sentence?
| A．The idea of not trying would keep coming to his mind and disturb him． |
| B．He would be very excited if he tried it out． |
| C．Be would be always having a doubt if he didn’t try． |
| D．The decision to not try the online bookstore would terrify him． |
Which of the following would be the best title for the passage?
| A．Cleverness and Kindness | B．The Starting of Amazon |
| C．Following My Passion | D．We Are What We Choose |
We can know from the passage that_______．
| A．the boss thought the idea was suitable for the author |
| B．the author wanted someone else to try the idea |
| C．the author might not regret if he failed the idea |
| D．the author might go back to his boss if he failed |
When should people be made to retire? 55? 65? Should there be a compulsory age limit?
Many old people work well into their 70s and 80s, running families, countries or corporations. Other people,however, despite being fit and highly talented, are forced to retire in their fifties or even earlier because of the regulations of a company or the nation. This essay will examine whether people should be allowed to continue working as long as they want or whether they should be encouraged to retire at a particular stage.
Some people think there are several arguments for allowing older people to continue working as long as they are able. First of all, older employees have an immense amount of knowledge and experience which can be lost to a business or organization if they are made to retire. A second point is that older employees are often extremely loyal employees and are more willing to carry out company policies than younger less committed staff. However, a more important point is regarding the attitudes in society to old people. To force someone to resign or retire at 60 indicates that the society does not value the input of these people and that effectively their useful life is over. Age is irrelevant to a working life, surely if older employees are told they cannot work after 60, this is age discrimination. That they become old does not necessarily mean they are going to be sick. Old people could be more aware, experienced and committed than some youngsters.
Others, however, think that allowing older people to work indefinitely is not a good policy. Age alone is no guarantee of ability. Old people are only ambitious workaholics who are too selfish and self-centered to believe that a younger person could do better. Actually, many younger employees have more experience or skills than older staff, who may have been stuck in one area or unit for most of their working lives. Having compulsory retirement allows new ideas in an organization. In addition, without age limits, however, many people would continue to work purely because they did not have any other plans or roles. A third point of view is that older people should be rewarded by society for their life’s labor by being given generous pensions and the freedom to enjoy their leisure. We now have youngsters who can’t find jobs because old people are choosing not to retire. Old people are not retiring because this new generation of “old people” think they will never die due to modern advances in medicine.
With many young people unemployed or frustrated in low-level positions, there are often calls to compulsorily retire older workers. However, this can affect the older individual’s freedom and right to work and can deprive(剥夺) society of valuable experience and insights. I feel that giving workers more flexibility and choice over their retirement age will benefit society and the individual.What is the purpose of this passage?
| A．To explain the compulsory age limit. |
| B．To discuss the retirement age. |
| C．To examine people’s working life. |
| D．To introduce a particular stage. |
Which of the following is NOT a reason for allowing old people to continue working according to the passage?
| A．Their contribution should be valued. |
| B．Their experience should be made use of. |
| C．They can help the youngsters. |
| D．They are loyal employees. |
It can be inferred in the fourth passage that ______.
| A．The young people have more creative spirits |
| B．Modern advances in medicine make old people never die |
| C．Pensions and freedom are not given to the old now |
| D．Old people believe that a younger person could do better |
The passage is arranged as follows:
After we meet people it is up to us to make them our friends. Let us stop a moment and consider what really makes a friend. The major qualities like faithfulness, devotion, friendly company, flash through our minds. But it is the large number of very small particular qualities that make up one’s whole character, such as cheerfulness, friendliness, and punctuality (守时). After all, “ to make a friend, be a friend” is not such a big and difficult order. There are particular favorable qualities, which attract others to us, and some elements which do have an effect on people in fundamental psychology(基础心理学) or not.
If you are in the presence of a shy person, talking and asking casual (随意的) questions may bring him out of his shell. Think of what would be most acceptable to the other person, for you to talk, or to listen. Either way the goal is to make yourself pleasant.
Always remember to listen, but listen intelligently. To have anyone “ hang on our words” is the most unnoticeably clever way in the world to please somebody. For a few extremely happy seconds we are the center of attraction, but when it is our turn to be audience, let us remember how we felt as the actor, and let’s be genuinely (真正地) interested in what the other fellow is saying.
Other people will like us, if we like them. If you want friends, keep your mind and heart open to friendship. Be alive to the other person’s world.This passage is mainly about_______.
| A．the ways of talking to a shy person |
| B．some favorable qualities to be a psychologist |
| C．how to make yourself attractive to your listeners |
| D．how to make a friend and be a friend |
The words “ bring him out of his shell” in this passage most probably mean _______.
| A．make him become active |
| B．make him feel more nervous |
| C．help him understand the question better |
| D．help him listen intelligently |
According to the passage, an important way in making friends is to ________.
| A．attract them | B．be attracted |
| C．listen attentively | D．talk widely |