Read the following article and select the best answer. Article: New experiments discover rats showing sympathy and helping other rodents .It is a characteristic some scientists thought was reserved only for humans and higher animals. In repeated tests, rats freed another trapped rat in their cage, even when yummy chocolate served as an attraction.24 of the 30 rats opened the trap by pushing in a door.The rats could have eaten the chocolate before freeing their partners, but often didn't, choosing to help and share the goodies. "Basically they told us freeing another rat is as important as eating chocolate," said study author Peggy Mason of the University of Chicago."That's a very striking thing." In some cases, the rats first took the chocolate chips out of a container, but didn't eat them, then freed the other rat and shared "almost as if they were serving them chocolate," Mason said.The research is reported in Thursday's journal Science. Also, females showed more consistent care and help than males, Mason said.All six females freed their trapped partner while three quarters of the 24 males did so.This confirms other studies that show females showing more pro-social behavior than males.There were time when the male rats took the day off from helping their trapped partner, but the females never did, she said. Jeff Mogil at McGill University in Canada, who wasn't part of the study, said it was a little surprising but even more convincing. Both scientists said social understanding is probably a characteristic that is important in the evolution of animals. Mason joked that if rats can be so caring and helpful, "there's a sense of optimism.It's something we could be." Question: In repeated tests, 24 out of the 30 rats _ . - freed their trapped partners before they ate the chocolate alone - ate the chocolate first and then freed their trapped partners - helped the trapped partners and shared the chocolate with them - took the chocolate and served it to their trapped partners
helped the trapped partners and shared the chocolate with them

Read the following article and select the best answer. Article: Last month, Justin Valdez, a college student, was shot in a subway station in San Francisco. The surveillance video showed that before Justin was killed, the killer pulled out his gun several times, and even wiped his nose with it. However, nobody noticed the killer. The surrounding passengers all focused on their cell phones. We may see the same scene everywhere in our life: in subway stations, restaurants, elevators and so on, people are watching their cell phones. From a family reunion to a date with a friend, people couldn't stop checking their twitter and facebook on the cell phones and ignoring the persons in front completely, Phubbing not only involves young people, but also the elderly and kids. "Phubbing" is a new term which comes from the words "phone'' and "snub ". It describes the habit of snubbing someone in favor of a cell phone. The word "phubbing" was included in the Australian National Dictionary in 2012. Obviously, the indifference) and rudeness of the information age are spreading globally. A Stop Phubbing campaign website has been set up. You can find the slogan of the website as follows: "stop twittering, stop posting photos...enjoy your food, enjoy the music and respect others." Phubbing appears harmless. However, it does influence our life. Jimmy, an epicure , wrote in his blog: "I can no longer focus on what I am eating since I started twittering. My skill of food photography has improved very fast, while my interest in food drops as a result." Let us put down our cell phones and re-enjoy the real taste of our food and the warmth of interpersonal communication. Question: What will probably happen when you ask a phubbing person for help? - He will give you an immediate reply. - He will stop looking at his cell phone. - He will pay no attention to you. - He will be very angry with you.
He will pay no attention to you.

Read the following article and select the best answer. Article: It seems that there is no middle ground when it comes to cats. People either love them or hate them. These feelings are not new either. All through history, cats have been worshiped or hated. A study of ancient writings and evidence found in tombs indicates that for the past 5,000 years, cats have been kept as pets in China, Arabia, Egypt, and India. However, this isn't very long compared to dogs, which have been domesticated for 50,000 years. Still, while the period in which cats have been domesticated may be quite short, it has definitely had its high and low points. Cats were at their highest position of domesticated life in ancient Egypt. There were more cats living in Egypt during the time of the pharaohs than in any other place in the world since that time. This high number of cats was probably due to the laws protecting them. Cats were associated with the moon goddess, Bast, so the Egyptians worshiped them as holy animals. If anyone was caught killing a cat, the person could be put to death. Families in Egypt also mourned the death of a cat and had the body of the dead cat wrapped in cloth before it was finally laid to rest. This respect for cats carried over to the Roman Empire where cats were the only animals allowed into temples. This fact was probably due to the ability of cats to keep the temples free of mice and rats. With the coming of the Dark Ages in Europe, the place of cats in society took a turn for the Empire, Christians began to associate cats with pegan beliefs. Cats had a reputation as helpers of witches. When a person was accused of being a witch, a cat would often be put on trial with the person. The cat would be tortured to try and make the person tell the truth, and usually the cat and the person would end up being burned in a bonfire or drowned. Bonfires of collected cats were not uncommon during this time. The days of hunting witches have ended, but other myths about cats still hold out. For a while, people in some places used to bury live cats under new buildings for good... Question: According to the passage, what percentage of people in the United States keep both a cat and a dog? - about 10 percent - nearly 25 percent - about 33 percent - close to 50 percent
about 10 percent

Read the following article and select the best answer. Article: Once there was a king who never ate a meal unless there was a dish of fish with it, but one day there was a big storm and the fishermen were not able to go out to catch fish, so the king had no breakfast and no lunch. Then he ordered his servants to tell everybody in his capital that if anyone brought him a fish, he would give him anything that he asked for. At last, a fisherman caught a big fish late in the afternoon and hurried to the king's palace with it. But the king's Prime Minister would not let him in until he promised to give him half of whatever the king gave him for the fish. The king was very happy when he saw the fish. He asked the fisherman what he wanted for his fish. To his surprise, the fisherman said, "I want you to beat me two dozen times with a stick." When the king began to beat him a dozen times, the fisherman jumped away and said, "That is enough for me. I promised the other dozen to your Prime Minister." Then he told the king what had happened between the Prime Minister and himself. The king was very angry. He not only gave the Prime Minister the dozen hits, but also said, "Because you have been dishonest, you will not be my Prime Minister any more. The fisherman will take your place." Question: . The fisherman took his fish to the king's palace because _ . - the king had promised to give him whatever he wanted - the king was dying from hunger - he wanted to teach the Prime Minister a lesson - he wanted to be the Prime Minister
the king had promised to give him whatever he wanted