Read the following article and select the best answer. Article: Have you ever heard a news reporter talk about DNA?Reporters talk about DNA found at the scene of a crime.They talk about police finding DNA "fingerprints".Police sometimes use DNA as a clue to find out who committed the crime. DNA is a substance that makes up genes.Everything alive has genes.Plants have genes.Animals have genes.You have genes. Genes are the basic units of heredity .Heredity means all the characteristics you inherit from your parents.You get your genes from your parents.You inherit half of your genes from your mother.You inherit half of your genes from your father. Genes are a kind of code.A tree's genes tell what shape its leaves will be.A cat's genes tell what color its fur will be.Your genes tell what color your eyes will be.Your genes tell what color your hair will be.Everything about you comes from the code in your genes. Genes line up on strands called chromosomes in cells.Everything alive is made up of cells.Chromosomes are in the center,or nucleus of cells. Different parts of you are made of different kinds of cells.Your muscles are made of muscle cells.Your skin is made of skin cells.The code in your genes tells your body to make different kinds of cells.The genes in each cell tell the cell how to work.They tell the cell when to make new copies of itself. An Austrian monk named Gregor Mendel first saw inherited patterns in pea plants.He experimented with pea plants in the 1860s.One of the things,or traits Mendel studied was what makes some pea plants tall and some short.He said that the traits must come from units of heredity passed from the parent plants.These units were later called genes. In the mid-1900s,scientists discovered that genes are made of DNA.In the 1970s,scientists learned how to change DNA with genetic engineering.Scientists also learned that problems with certain genes cause diseases.Muscular dystrophy,cystic fibrosis,and hemophilia are some genetic diseases--diseases caused by problems in genes.Today,scientists are looking for ways to cure genetic diseases by... Question: An Austrian monk named Gregor Mendel _ . - first saw inherited patterns in people - was interested in why plants were different - first called the units of heredity from parents genes - was the first who discovered genes
was the first who discovered genes

Read the following article and select the best answer. Article: I am a long distance runner. When I was thirty-one, I was in a serious car accident. The doctor told me that they would try to get me to walk "normally" but I would never run again--terrible news for someone who views running as the oxygen she breathes. The doctors were right. For the next nine and a half years, I was unable to run more than twenty-five feet. In 2006, I began self-training to take part in a 60-mile walk. Three months into preparing, I realized that walking 4-5 hours a day was too long. If only I could jog part of it--that would cost me less time. I started jogging without my knees aching. Slowly, I increased the distance. The doctor were proved wrong--it only took nine and a half years to do so. While practicing, I suffered a loss--a dear friend suddenly died. His work had been to help women to accept themselves and reach their fullest potential . He believed that people should let nothing hold them back from achieving their goals. Soon after his death, a crazy thought entered my mind: what if I could run the LA Marathon? I knew that if I didn't train to my fullest, the doctor would win. So I trained seven days a week. And I succeeded in crossing the finish line of the LA Marathons all over the United States to the _ of my doctors. They never believed that I would achieve that. The aches and pains I experience while training and racing are nothing compared to the suffering people whom I respect must accept. Question: The author tried jogging because she wanted to _ . - save some time - protect her feet - get more exercise - catch up with others
save some time

Q: Read the following article and select the best answer. Article: Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great Albert Einstein once wrote that most people use only a small portion of the grey matter between their ears. It's a theory that has often been put forward in television documentaries; magazines, advertisements and books over the past century. But nearly all scientists now agree the 10 percent theory is completely . In fact, they question how this figure was ever arrived at in the first place and what areas of the brain are supposed to be unneeded. The theory supposes that if 90 percent of the brain were removed, a person would Still be able to function normally, while in reality it is known that damage to even a small area of the brain can result in extremely serious physical injury different activities and that many areas of the brain are used at the same time for some complex activities or thought processes. Throughout the course of one day, most .areas of the brain are active at some time, even during sleep. The 10 percent theory suggests that certain areas o' the brain are not used, but scans slow activities throughout the entire brain and not in any separate part. The final argument against the 10 percent theory is the fact that doctors carefully map the brain before removing brain cancers so that they don't affect other essential areas. From an evolutionary point of view, it's highly unlikely butt our comparatively larger brains would have evolved from our ancestors if the extra areas were not needed. In fact, there is absolutely no evidence support the 10 percent theory. Question: What can we infer from the passage? - People today use more of their brain than in the past. - Scientific opinion about the topic of brain use is equally divided. - Our understanding of the brain has changed greatly in the past decades. - Modern scientists have a complete picture of how the brain works.
A: Our understanding of the brain has changed greatly in the past decades.

Read the following article and select the best answer. Article: Long long ago, there was an old merchant who had three sons. "To which one shall I leave my fortune?" he wondered. "It must be to the cleverest son. But which one is the cleverest?" He called his three sons to him. "Here is some money," he told them, "you must each take one coin to buy something that will fill this room. Anyone who can do this shall have my fortune." "It is a big room," said the eldest son. "One coin will not buy very much," said the second son. But the youngest son said nothing. He stood and thought, and then he smiled, "Come, brothers," he said, "let us go to the market." The eldest son bought straw with his coin. But one coin bought only a bit of straw. Even when he had spread it as much as he could, the straw covered only a corner of the room. The second son bought sand with his coin. But one coin bought only a bit of sand. Even when he had spread it as much as he could, the sand covered only half of the floor. "What did you buy?" the eldest son angrily asked the youngest son. "You don't have any straw." "Yes, what did you buy?" the second son asked angrily. "You don't have any sand." "I bought this," said the youngest son. "A candle!" cried his brothers. "What good is a candle?" "Watch", said the youngest son. He lit the candle, and all at once the room was filled from wall to wall, from ceiling to floor. It was filled with light! "Although you are the youngest, you are indeed the cleverest of my sons," the old merchant said. And that is how, the old merchant left his fortune to his youngest son, the one who could fill a room with light. Question: How do you think of the youngest son? - He is very clever. - He is very lazy. - He is very mean. - He is very diligent.
He is very clever.