Read the article and select the best answer. Article: Scientists in Colombia have trained a team of rats to help remove land mines from the countryside. Land mines are small bombs hidden in the ground and designed to explode when someone steps on them. When trained, the rats can smell special metals in the mines and then signal to their human team. Then why use rats for such an important job? In the past, dogs have been used to find bombs. Rats have a good sense of smell and can respond to orders, just like dogs do. But rats are much lighter than dogs. They stand less of a chance of setting off the mines, which explode under a certain amount of weight. What's more, the best rats are cheaper to keep than dogs. It costs about the same amount of money to take care of one dog as it does 70 rats. The rats have already been used in Tanzania, an African country with many land mines. Luisa Fernanda Mendez and her team in Colombia are training the even lighter Wistar rats. These are the white rats with red eyes that scientists often use in laboratory experiments. " _ even train their babies to perform their jobs, which saves us a lot of time, " Mendez said. Colombia has the second-highest rate of deaths from land mine accidents in the world. Last year, land mines killed 695 people -- 56 of whom were children. A criminal group called the Revolutionary Armed Forces of Colombia, or FARC, as well as other organizations, have placed the mines. FARC are strongly against Colombia's government. The group has placed mines all around its own bases and in many places in the countryside. In the past, the Colombian government hired peasants and poor farmers to find mines. Many of them died trying to find the well-hidden bombs. Colombian police official Erick Guzman hopes the team of rats can come to the rescue . "These rats will be a great help," he said. Question: What is the passage mainly about? Options: A: Specially-trained rats help clear land mines. B: People in Tanzania are suffering from land mines. C: Dogs are no longer used to find land mines. D: Land mines have become a great danger to Colombians.
A

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Read the article and select the best answer. Article: Jaguar was very rare. It was said that there less than 20 jaguars in the world, one of which was living in the national zoo of Peru. In order to help this jaguar, Peruvians set up a zoo for it, where there were sheep and deer for the jaguar to eat. However, strange enough, no one had ever seen the jaguar hunt the deer and sheep. What they could see was its lying in its cave, sleeping and eating the meat provided by the zoo keepers. At first, people thought that the jaguar felt too lonely, so they found a female tiger to accompany it. However, it did not make too much sense. The jaguar just sometimes went out of its cave with its "girlfriend" for a while before it came back to its house again' It is normal for the jaguar to be lazy here. Tiger is the king of forest but you simply put some small animals around him. That is why the jaguar shows no interest in going out' a visitor said. So people put five wolves into the jaguar's zoo. Since then, the jaguar did not go back to its cave any more . It either stands on top of the hill yelling or runs up and down the hill without sleeping all day long . Actually, one creature without any _ is a lifeless creature. If a man lives without rivals, he is likely to be satisfied with the present and will not fight for the better. He will hold back before all difficulties . Hard environment tends to make successful people . Therefore, we need some rivals to push us to go ahead in all difficulties and competitions in our lives. Due to our rivals, we can bring out our potential to the best. Due to our rivals, we will continuously improve our abilities when competing with them! Question: Why did Peruvians set up a zoo for the jaguar? Options: A: To protect this endangered animal. B: To entertain people. C: To satisfy people's curiosity. D: To do some experiments.
(Answer)
A

Ques: Read the article and select the best answer. Article: China is casting a huge shadow on the United States that many Americans are struggling to learn Chinese in order to maintain their competitive edge. "Interest in learning Chinese among American youth and their parents has grown dramatically in the past five years," said Vivien Stewart at the Asia Society, a US grow trying to bridge the gap between Americans and people of Asia and the Pacific. China, the world's most popular nation, is very important to the United States because it is a leading trader, consumer and investor. Its political influence is also rising across the globe. It has replaced the United States as the world's largest consumer and could become the second largest economy country in the world, after the superpower status and its telling effects politically, economically and culturally are driving the interest to learn the language, experts say. From kindergartens to high schools, studies by the Asia Society show, there is a "rapid rise" in interest among pupils to study the Chinese language. Even though the US State Department has stressed the Chinese language "important " to national prosperity and security, the "current infrastructure to support recruitment of students and teachers as well as the growth of high quality programs is badly inadequate," an Asia Society study says. The Society has set a target of having at least 5% of American high school students learning Chinese by 2015. " Millions of Chinese are learning English, but only 24,000 Americans are learning Chinese," said Andrew Corcoran of the San Francisco - based Chinese American International School. Question: What might be the most suitable title for this passage? Options: A: Chinese Gains its Popularity with Most Americans B: US Government Requires its People to Learn Chinese C: Americans Show Interest Learning Chinese D: China's Economy Helps to Spread its Language
Ans: C

Ques: Read the article and select the best answer. Article: There are an extremely large number of antsworldwide. Each individual ant hardly weigh anything, but put together they weigh roughly the same as all of mankind. They also live nearly everywhere, except on frozen mountain tops and around the poles.Foranimals their size, ants have been astonishingly successful, largely due to their wonderfulsocial behavior. In colonies that range in size from a few hundred to tens of millions, they organize their lives with a clear division of labor. Even more amazing is how they achievethis level of organization. Where we use sound and sight to communicate, ants dependprimarily on pheromone , chemicals sent out by individuals and smelled or tastedby fellow members of their colony. When an ant finds food, it produces a pheromone that will lead others straight to where the food is. When an individual ant comes under attack or is dying, it sends out an alarm pheromone to warn the colony to prepare for a conflict as a defense unit. In fact, when it comes to the art of war, ants have no equal. They are completely fearless and will readily take on a creature much larger than themselves, attacking in large groups and overcoming their target. Such is their devotion to the common good of the colony that not only soldier ants but also worker ants will sacrifice their lives to help defeat an enemy. Behaving in this selfless and devoted manner, these little creatures have survived on Earth, for more than 140 million years, far longer than dinosaurs. Because they think as one, they have a collective intelligence greater than you would expect from itsindividual parts. Question: We can learn from the passage that ants are _ . Options: A: not willing to share food B: not found around the poles C: more successful than all other animals D: too many to achieve any level of organization
Ans:
B