I'm taking a test and have to guess the right answer to the question after the article. Article: Humans aren't the only ones getting a buzz from coffee.Caffeine can improve memory among honeybees and lead to better pollination .According to a recent study published in the journal Science. The study was conducted by a team of researchers at Newcastle University in the United Kingdom.They found that the nectar of some flowers,such as those from grapefruit and lemon plants,as well as certain coffee flowers,contains low doses of caffeine.To get bees to feed on these flowers,the team trained the insects to associate food with the smell of the flowers.They also trained another group of bees to feed on nectar from flowers that were sweetened with a sugar, but did not contain caffeine.After 24 hours,the bees trained on caffeinated flowers returned to these plants three times as often as those trained on the sweetened flowers returned to the uncaffeinated plants. Professor Geraldine Wright led the researchers."Remembering floral traits is difficult for bees to perform at a fast pace as they fly from flower to flower and we found that caffeine helps the bee remember where the flowers are,"Wright said in a statement. Improved memory led to the better pollination.That's because once bees sip the caffeine nectar, they continue to look for more coffee plants to pollinate.This also suggests that caffeine plays a role in improving the bees'ability to search for food. Researchers found that caffeine's effect on the bee brain is similar to its effect on mammals."The change is similar to that produced by caffeine in neurons associated with learning and memory in the rat brain,"Wright said. Bee populations have declining since 2007.The dramatic drop in the insects'numbers has serious effects for ecosystems and the farming industry.Bees are needed in the reproduction of crops and spreading wild flower species.Understanding what keeps bees buzzing could help to make sure that the insects are able to remember and pollinate their favorite flowers. Question: Which of the following is mentioned in the passage? Options: A: Caffeine has no effect on the rat brain. B: Bee population has been increasing. C: The nectar of lemon plants contains caffeine. D: Bees dislike nectar from sweetened flowers.
C
I'm taking a test and have to guess the right answer to the question after the article. Article: The technology is great. Without it we wouldn't have been able to put a man on the moon, explore the ocean's depths or eat microwave sausages. Computers have revolutionized our lives and they have the power to educate and pass on knowledge. But sometimes this power can create more problems than it solves. Every doctor has had to try their best to calm down patients who've come into their surgery waving an Internet print-out, convinced that they have some rare incurable disease, say, throat cancer. The truth is usually far more ordinary, though: they don't have throat cancer, and it's just that their throats are swollen. Being a graduate of the Internet "school" of medicine does not guarantee accurate self-health-checks. One day Mrs. Almond came to my hospital after feeling faint at work. While I took her blood sample and tried to find out what was wrong, she said calmly, "I know what's wrong;I've got throat cancer. I know there's nothing you doctors can do about it and I've just got to wait until the day comes." As a matter of routine I ordered a chest X-ray. I looked at it and the blood results an hour later. Something wasn't right. "Did your local doctor do an X-ray?" I asked. "Oh, I haven't been to the doctor for years," she replied. "I read about it on a website and the symptoms fitted, so I knew that's what I had." However, some of her symptoms, like the severe cough and weight loss, didn't fit with it--but she'd just ignored this. I looked at the X-ray again, and more tests confirmed it wasn't the cancer but tuberculosis --something that most certainly did need treating, and could be deadly. She was lucky we caught it when we did. Mrs. Almond went pale when I explained she would have to be on treatment for the next six months to ensure that she was fully recovered. It was certainly a lesson for her. " _ ," she said, shaking her head, as I explained that all the people she had come into close contact with would have to be found out and tested. She listed up to about 20, and then I went to my office to... Question: By mentioning the breakdown of the computer, the author probably wants to prove _ . Options: A: it's a must to take a break at work B: it's vital to believe in IT professionals C: it's unwise to simply rely on technology D: it's a danger to work long hours on computers
C
(Question)
I'm taking a test and have to guess the right answer to the question after the article. Article: Christmas has never looked as beautiful as it is now, when this one-foot-tall mini tree grew from a pothole in the streets of London. London pothole gardener Steve Wheen , 34 , has created over 150 little gardens so far the smallest one of which is just one-inch-square. "I really enjoy the reactions of people who come across my work and love them ."said Steve. "London can be so grey, especially at this time of year. When l was thinking about how to brighten it up, gardening came to my mind." Steve has been pothole gardening for four years, mainly around the streets of London His pothole gardens are made with some plants he chooses from his local garden centre. Each of them usually costs between five and ten pounds. Although they are often temporary to the streets, Steve is sure that they can be in people's mind for a long time, if they are lucky enough to come across these small gardens while they go about their daily lives. "I'm always surprised when I ask people what they think the message is behind my Work ."he said. "Often they think I'm against or in honor of something. One person even considered that l was marking the places where people had died in car accidents." "I think in a city like London, where it's easy to feel short of green space, my message can be seen as a green one and that's fine with me. "he said. "The environment is something we all need to be thinking about more and more. But most importantly, it's all about making people smile and giving them an unexpected moment of happiness." Question: Steve thinks the main color of London around Christmas is Options: A: white B: blue C: grey D: green
(Answer)
C