Ques:It's a popular belief that a fish's memory lasts for only seven seconds. It may seem sad to think that they don't remember what they've eaten or where they've been, and they don't recognize you or any of their friends -- every moment in their life would be like seeing the world for the first time. But don't be so quick to feel sorry for them. A new study has found that fish have a much better memory than we used to think. In fact, certain species of fish can even remember events from as long as 12 days ago. In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They then waited for 12 days before putting them back in the tank again. Researchers used computer software to monitor the fish's movements. They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences. In fact, scientists had been thinking for a long time that African cichlids might have a good memory. An earlier study showed that they behaved aggressively  in front of certain fish, perhaps because they remembered their past "fights". But until the latest findings, there was no clear evidence. Just as a good memory can make our lives easier, it also plays an important part when a fish is trying to survive in the wild. "If fish are able to remember that a certain area contains safe food, they will be able to go back to that area without putting their lives at risks," lead researcher Trevor Hamilton toldLive Science. For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence. What is the article mainly about? A) Fish having very bad memories. B) Fish being smarter than we thought. C) How fish improve their memory. D) What we can learn from fish.

Ans:B
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Ques:BERLIN (AP)----A tiger escaped its enclosure at Cologne Zoo in western Germany on Saturday and killed a female keeper before being shot dead by the zoo's director, police said. The tiger slipped through a passage between the enclosure and a neighboring storage building, where it fatally attacked the 43-year-old keeper, said police spokesman Stefan Kirchner. "It appears the gate wasn't properly shut," Kirchner told The Associated Press. The zoo was evacuated and a SWAT   team was called in, police said.But before it arrived, the zoo's director managed to kill the tiger by climbing onto the storage building and shooting it through a skylight using a rifle. Kirchner said it was unlikely that members of the public had witnessed the incident. "This is the darkest day of my life," the zoo's director, Theo Pagel, was quoted as saying by Cologne newspaper Express. The paper said on its website that the Siberian tiger was a 4-year-old male called Tltai that came to Cologne Zoo from an animal park in England.In November it fathered three cubs with a 7-year-old Siberian tiger called Hanya, according to the zoo's website. Police said the zoo reopened after Saturday's incident, which occurred around noon.However, a planned late-night opening of the zoo has been canceled. Cologne Zoo is one of the oldest in Germany.It was founded in 1860 and houses some 10,000 animals consisting of more than 700 different species. What did the zoo do after the incident? A) They honored the killed person in a way. B) They paid SWAT for their timely help. C) They returned the tiger's three cubs to England. D) They called off the late-night opening.

Ans:D
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Ques:Passwords are no safeguards Typing your password or credit card number into a computer is a moment's work. But if you think your personal details disappear as soon as you hit the Return key, think again: they can sit on the computer's hard disk for years waiting for a hacker to take them. As people spend more time on the web and hackers become more experienced, the dangers of storing personal information on computers are growing by the day, security experts say. There are some safe-guards, such as never allowing your computer to store your passwords. But even that in no guarantee of security. When you type in a password, it is stored in random access memory (RAM), where it is held temporarily until other data overwrites it or the computer is switched off. But every so often , the computer copies the contents of its RAM onto hard disk, where it is easy to prey  for a hacker, who can read it directly or design a worm to e-mail it back. The longer sensitive data stays in RAM, the more likely it is to be copied onto the disk, where it stays until it is overwritten-which might not happen for years. Tal Garfinkel and colleagues from Stanford University have created a software tool which simulates  the workings of a complete computer system. Within the simulation, sensitive data can be tagged and then tracked as it passes through the system. Next, Garfinkel and his team simulated computers running common software that regularly handles passwords or secret personal information, such as Internet Explorer, the Windows login script and Apache server software. In a paper to be presented, they conclude that the programs took no measures to limit the length of time the information is kept. Some of the tested software even copied the sensitive information, obviously without restraint . Hackers usually get others' information from  _  . A) RAM B) the hard disk C) a worm D) the e-mail

Ans:B
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Ques:Why can't some people even get an inch of what they dream of becoming? Blame it on pure dreaming and lack of surrounding goals for achieving their dreams. Setting goals is very significant part of accomplishing and positive actions. It is like scaling  a 200 feet construction and marking in the early hours on what feet you would like to reach at this specific period. People who set goals literally generate a map of their goal settings in life, marking where they should start, where to pause, where to study a bit, and where and when to end. Once this map comes into being, it allows the map drawer to check where he is in the scheme  of things and whether or not he is making some planning that will take him closer to his goals. By surrounding goals, people will know how they are doing and what they should be doing to get their goals or dreams in life. They will know if they can relax or if they have to double their efforts when they are falling short of what is expected of them. Goal surroundings means a person is prepared in dealing with challenges that may affect his plans. Being proactive means one is able to outline possible difficulties that may occur as well as the solutions to these difficulties. By doing this, a person is not easily scared or defeated when challenges occur because he has already prepared for them. He knows they can happen and he has prepared a solution or strategy when that time comes. Setting goals will enable people to track their progress in whatever hard work they set out to do. It will help people become more confident in themselves and more motivated to get their plans. The purpose of this passage is to   _  . A) explain the difference between the two goals. B) show the importance of surrounding goals. C) tell us how to set and achieve one's goals. D) tell us setting goals makes one confident.

Ans:
B
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