Ques: Read the following article and select the best answer. Article: Scientist Florence Wambugu works with farmers in Kenya, a country in East Africa. She helps them grow bigger and better crops. Wambugu is especially interested in finding simple ways to produce more food. In the past ten years, Wambugu has spent much of her time studying sweet potatoes, which are an important food in her part of Kenya. A virus kept attacking the plants. It stopped the sweet potatoes from growing well. Because of the virus, some farmers lost three quarters of their crops. Wambugu went to war against the virus. Her research for a way to save the sweet potatoes led to a lab in St. Louis, Missouri. The lab mainly works on genes , the chemical "computer programs" found in the cells of living things. Genes tell a plant to produce pink flowers or an animal to grow black hair. Now scientists have found ways to move genes from one living thing to another. That process is called genetic engineering. Wambugu spent three years in the lab. As a result, she created a sweet potato plant that could fight off the virus. Wambugu tested her research in Kenya, and her plants produced wonderful sweet potatoes. That's just the beginning, Wambugu believes. Genetically modified foods, she thinks, could help farmers in poor countries grow badly needed crops, thus, fewer people will go hungry. Question: The text is written mainly to _ . - tell us sweet potatoes are in danger of being attacked by a virus - introduce Wambugu's contribution to genetic engineering - introduce a new way of killing plant viruses - tell how hard Wambugu worked in her lab for three years
Ans: introduce Wambugu's contribution to genetic engineering

Ques: Read the following article and select the best answer. Article: Cyril was a small town. The houses there were all made of wood; almost everything in the houses such as cupboards, tables and chairs were made of wood, too. And all the houses faced south. The town was never peaceful. Fire broke out once a week on summer afternoons. Residents were puzzled who the real firebug was. One day a big fire broke out. It was said that a Negro had jumped out of the house on fire, so the police arrested all the Negroes in the street. However, fire never stopped to breaking out when the Negroes were in prison. Mauson, a physics teacher didn't believe that the Negroes were the firebugs, for he really knew about those Negroes, He made up his mind to find out who the real firebug was. One day he was invited to drink in a pub and happened to notice that many bottles and plastic plates were baked by the hot sunrays. Suddenly he realized what the actual fact was. He jumped with joy, saying, "I've got the answer!" Mauson dashed out of the pub to his friend's house nearby, which also faced south. He made an experiment there to confirm his idea. The next Saturday afternoon, Mauson asked some policemen and newsmen to come to the house. They were told that the real firebug would be shown there. At that time the sun was shining full into the house and it became hotter and hotter inside the room. Someone wanted to draw the curtains together, while another was going to use a bottle to drink water, but neither got permission from Mauson, who wanted to let the firebug in. "Now," said Mauson, "this house will soon catch fire." People looked at each other in surprise. Mauson asked them to look at the bottles and focus on the table cloth. After a while the cloth gave off a burning smell and began to catch fire! The mystery of fire was discovered, but the police wouldn't believe him and insisted that Negroes had been the firebugs. Instead they arrested Mauson and put him into prison. But Mauson said he would never turn against science. Question: The town was never peaceful, for fire broke out _ . - in the afternoon - in summer - at any time - A and B
Ans: A and B

Ques: Read the following article and select the best answer. Article: Are you looking for some new and exciting places to take your kids to? Try some of these places: *Visit art museums. They offer a variety of activities to excite your kids' interest. Many offer workshops for making hand-made pieces, traveling exhibits, book signings by children' s favorite writers, and even musical performances and other arts. *Head to a natural history museum. This is where kids can discover the past from dinosaur models to rock collections and pictures of stars in the sky. Also, ask what kind of workshops and educational programs are prepared for kids and any special events that are coming up. *Go to a Youtheater. Look for one in your area offering plays for child and family visitors. Pre-show play shops are conducted by area artists and educators where kids can discover the secret about performing arts. Puppet making and stage make-up are just a couple of the special offerings you might find. *Try hands-on science. Visit one of the many hands-on science museums around the country. These science play-lands are great fun for kids and grown-ups alike. They'll keep your child mentally and physically active the whole day through while pushing buttons, experimenting, and building. When everyone is tired, enjoy a fun family science show, commonly found in these museums. X Question: If a child is interested in the universe, he probably will visit _ . - a hands-on science museum - an art museum - a Youtheater - a natural history museum
Ans: a natural history museum

Ques: Read the following article and select the best answer. Article: On a cold January morning in a Washington, DC Metro Station, a man with a violin played six great pieces for about 45 minutes. During that time about two thousand people went through the station, most of them on their way to work. After three minutes a middle-aged man noticed there was a musician playing. He slowed his pace and stopped for a few seconds and then hurried to meet his schedule. Four minutes later, the violinist received his first dollar: a woman threw the money in the hat and, without stopping, continued to walk. After 6 minutes, a young man leaned against the wall to listen to him, then looked at his watch and started to walk again. After ten minutes, a 3-year-old boy stopped but his mother dragged him along hurriedly. This action was repeated by several other children. Every parent, without exception, forced their children to move on quickly. In the end, only 6 people stopped and listened for a short while. About 20 gave money, but continued to walk at their normal pace. The man collected a total of $32. When he finished playing, no one applauded, nor was there any recognition. The violinist was Joshua Bell, one of the greatest musicians in the world. He played one of the most elegant pieces ever written, with a violin worth $3.5 million dollars, two days before Joshua Bell had sold out a theater in Boston where the seats averaged $100. The performance was organized as part of a social experiment about perception, taste, and people's priorities. In a usual environment, at an inappropriate hour, do you perceive beauty? Do you stop to appreciate it? Do you recognize talent in an unexpected context? If you do not have a moment to stop and listen to one of the best musicians in the world playing some of the finest music ever written, how many other things might you be missing? Question: Compared to their parents, the children seemed to _ . - be better at playing the violin - be more easily touched by music - have more spare time - have more music knowledge
Ans:
be more easily touched by music