TEXT C Just a few seconds of frenzied passion on the floor of the public bar and things would never be the same again for Michelle. It only took a few minutes to ruin her life. The end of all her hopes and dreams, her childhood and teenage innocence, all stripped away the first and only time she ever surrendered herself to a man. No one saw it happen, but the news spread fast, it wasnt long before the whole of Britain knew what had happened in the Queen Victoria —— Dirty Den, the landlord, had done it again. Only this time he had gone too far. For the millions who have agonized with her, Michelles pregnancy seems a terrible price to pay for one mistake —— a little youthful stupidity. Yet, with the increasing number of teenage single mums, its not just a problem dreamed up for a soap opera —— as actress Susan Tully, who plays Michelle, has discovered from hundreds of letters: Its a dilemma many young girls face. As she talks about Michelle and her baby, its easy to understand why Susan has been so successful in the role. Even though shed never had an experience like it herself, its one she recognizes all too clearly from what happens to some of her contemporaries at school. Michelle might almost be her younger sister rather than a fictional part in Britains most successful soap opera. Susan says that she never became involved with men during her school years because of her work. With her time being split equally between school and television studios, she was busy learning lines while her girlfriends were dating boys. While they went out to discuss and parties in the evening she was desperately catching up on her schoolwork. "I dont feel as though Ive missed out on anything," she insists. "And unlike a lot of my friends, Ive got plenty to look forward to. Thats whats so nice about my boyfriend now. Its very comfortable and theres lots to find out about each other." "Its then that I feel sad for Michelle. When she should be going out and having fun, shes having to worry about whether shes going to breastfeed the baby. Shes had to say goodbye to being a teenage."
73. How did Susan avoid the dangers that many of her school friends faced?
A) By thinking of Michelle as her younger sister.
B) By doing many projects at home.
C) By working hard at school and at the TV studio.
D) By dating her boyfriend during her school years.
74. According to the passage, Susan Tully is sorry for Michelle because Michelle has to _____.
A) grow old quickly
B) catch up on her schoolwork
C) write many letters every day
D) work late in the evening
75. The best title for this passage is _____.
A) Sorry for Susan Tully
B) Sorry for Michelle
C) Susan's School Years
D) Susan's Hopes and Dreams
TEXT D Helium is a gas that is lighter than air. It is the second lightest of all gases. (Only hydrogen is lighter.) Helium is inert, which means it will not react chemically with anything. It cannot burn. It has no color, odor, or taste. The first people who saw evidence of helium saw it as a bright yellow line in spectroscopes they aimed at the sun during the eclipse of 1868. They knew that they were seeing something new, and that the chemical element that caused the line in the spectroscope was unknown on earth. The unknown element was named helium, from the Greek word helios, meaning "sun". Later, in 1895, the same brilliant yellow line was seen coming from a Norwegian mineral which produces a little helium by its radioactivity. The line in the spectroscope was identified as caused by the gas helium. This element is the only one that was discovered off the earth before it was discovered in the earth. Almost all commercial helium is produced in the United States. The plants for separating helium from natural gas are in Texas, Kansas, and New Mexico. Most of the natural gas supplies are controlled by the government and administered by the United States Bureau of Mines. The government is interested in helium because the gas has military uses. Helium has been used for some time to inflate blimps, weather balloons, advertising balloons, and toy balloons. Helium is valuable for filling balloons because it does not burn, as hydrogen does. This prevents dangerous explosions. Recent uses of helium are far more important than any of these familiar uses. Now helium gas may be the cooling gas, or coolant, pumped through the reactors of some nuclear power plants to keep them from getting too hot. It is also used in electric arc welding because the gas does not combine with hot metal. helium is used, too, in rocket fuel tanks as a means of maintaining pressure during flight.
76. The chemical element helium is named from the Greek word which means _____.
A) light air
B) yellow line
C) sun
D) earth
77. Helium is valuable to nuclear power plants because it _____.
A) is lighter than air
B) may be used as a cooling gas
C) does not combine with hot objects
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