Read the article and select the best answer. Article: Australian sleep researchers have developed a set of hi-tech "sunglasses", described as the world's first "time control" glasses, which can imitate sunlight patterns. The team, from Flinders University, in Adelaide, says the glasses send out a soft green glow that helps a traveller adapt to changing sleep patterns and time zones in "small steps". It targets a part of the brain that regulates the human body-clock, by sending signals to the rest of the body that help it slowly realise it is in a different area of the world. It has been suggested the device, called the "Re-Timer", is currently the only wearable body clock adjustment system commercially available. Scientists say the device, officially launched in South Australia, can help ridf the negative effects of long-timel travel and bring new relief to insomnia sufferers, shift workers and even teenagers. "The light from Re-Timer stimulates the part of the brain responsible for regulating the 24-hour body clock," said Prof Leon Lack, its chief inventor. Extensive research has shown that green light is one of the most effective wavelengths for influencing the body clock. The battery-powered device, which retail for PS162 in Britain, then sends signals that cause the production of hormones and daily cycles known as circadian rhythms . Those people who want to sleep peacefully, but wake earlier, should wear it for 50 minutes in the morning for three days. Those who want a lie- in, should wear it for the same time before bed to delay the body clock. The device, which is powered by an inbuilt rechargeable battery, can also be worn as sunglasses during daily tasks such as reading or using a computer. "The glasses have been designed to be user friendly and comfortable to wear so people can go about their normal activities wearing them at work or at home," he said, adding they had been designed based on 25 years of university research. It is estimated that up to 94 per cent of long-time travellers suffer from jet lag because the body becomes confused to... Question: If you wear a "Re-Timer" an hour before bed, you will probably _ . Options: A: wake up earlier than usual B: spend a longer bed time C: sleep less but feel energetic D: have a sleep without dreams
B

Read the article and select the best answer. Article: You might say that one reason why Barack Obama is president of the US is that he knows how to give a good speech. Since 2004, Obama has written and delivered thousands of speeches. These are usually praised for two reasons: he treats the audiences like intelligent adults, and he is able to express _ ideas in an easy, natural way. Before becoming president, Obama was a lawyer, a college professor, and a successful writer---his two memories have become best-sellers. What's more, he has some secret weapons. Teleprompter: Obama doesn't go anywhere without his Teleprompter. The textbook-sized panes of glass holding the president's prepared remarks follow him wherever he goes to speak. Writing team: Obama has a team of people who write his speeches. The writers chat with Obama for hours about what he wants to say. They listen to recordings of past presidential speeches and seek advice from advisers. Obama usually edits and rewrites the drafts several times. Tricks for lighthearted speeches: Make fun of the guests: Obama starts his speech by gently teasing his guests. His opening lines draw the audience's attention while giving them an opportunity to relax and laugh at themselves and each other. Make fun of yourself: A good rule for speechmakers: If you're going to make a joke about someone else, be sure to make one about yourself, too. Obama mocks his own poor choices for filling the position of Commerce Secretary, saying, "No president in history has ever named three Commerce Secretaries this quickly." In fact, his first two nominees for the position withdrew their names for different reasons. In a process that had otherwise gone smoothly, the Obama Administration found it hard to deal with the problem of filling the Commerce seat. Question: Obama made the poetic and inspiring speech in 2004 as _ . Options: A: president B: a nominee for the presidency C: a senator D: a secretary
C

Q: Read the article and select the best answer. Article: Whatever our differences as human beings are we all think we're more like the rest of the animal world than we realize. It is said that we share 40 per cent of our genetic structure with the simple worm. But that fact has helped Sir John Sulston win the 2002 Nobel Prize for Medicine. Sir John is the founder of the Sanger Institute in Cambridge, which was set up in 1992 to get further understanding of the human genome . To help them do this, they turned to the worm. The nematode worm is one of the earliest creatures on planet earth. It is less than one millimeter long, completely transparent and spends its entire life digging holes through sand. But it still has lots to say about human life, and what can be done to make it better. What the worm told Sir John and his colleagues was that each of the cells in the human body is programmed like a computer. They grow, develop and die according to a set of instructions that are coded in our genetic make-up. Many of the diseases that humans suffer from happen when these instructions go wrong or are not obeyed. When the cell refuses to die but carries on growing instead, this leads to cancer. Heart attacks and diseases like AIDS cause more cell deaths than normal, increasing the damage they do to the body. Sir John was the first scientist to prove the existence of programmed cell death. Question: People might be seriously ill if the cells in their body_. Options: A: grow without being instructed B: die regularly C: fail to follow people's instructions D: develop in the human body
A: A

(Q).
Read the article and select the best answer. Article: Why I Don't Spare "Spare Change" "Poor but honest." "The deserving poor. " These words always come to my mind when I think of "the poor. " But I also think of people who, perhaps through alcohol or drugs, have ruined not only their own lives but also the lives of others in order to give way to their own pleasure. Perhaps alcoholism and drug addiction really are "diseases. " as many people say, but my own feeling-based, of course, not on any serious study-is that most alcoholies and drug addicts belong to the "undeserving poor. " And that is largely why I don't give spare change to beggars. But surely among the street people there are also some who can rightly be called "deserving." Deserving what? My spare change? Or simply the government's assistance? It happens that I have been brought up to believe that it is proper to make contributions to charity , but if I give some change to a beggar, am I making a contribution to charity and thereby helping someone, or, am I perhaps simply encouraging someone not to get help? Or, maybe even worse, am I supporting a cheat? If one believes in the value of private charity, one can either give to needy people or to charitable organizations. In giving to a beggar one may indeed be helping a person who badly needs help, but one cannot be certain that one is giving to a needy person. In giving to an organization, on the other hand, one can feel that one's money is likely to beused wisely. True, facing a beggar one may feel thatthis particular unfortunateperson needs help atthis moment-a cup of coffee or a sandwich-and the need will not be met unless I put my hand in my pocket right now. But I have come to think that the beggars whom I meet can get along without my spare change, and indeed perhaps they are actually better off for not having money to buy alcohol or drugs. I know nothing about these beggars, but it's my impression that they simply prefer begging to working. I am not generalizing about street people. I am talking about the people whom I actually meet. That's why... Question: What does the author think of beggars who take drugs? Options: A: They should be given a cheek-up. B: They really need money to live. C: They have no pleasure in life. D: They are not worth helping.
(A).
D