Most parents know the benefits (益处). Then what’s stopping them from letting their kids ride a bike? Safety is the number one worry for them. But actually riding a bike is not as dangerous as parents think it is.

　　When you decide to buy a bike, you should be aware（意识到） that a bike that is too big or too small is dangerous. Don’t try to get a bike that your child will “grow into”. Get the right size in good working order. Generally, 20-inch wheels are on bikes for 5-8 year olds; 24-inch wheels are for 9-11 year olds; 26-inch wheels are suitable for those over 11, and some older children should even take bikes with 28-inch wheels, but the main thing is that the bike fits your child.

　　45. This passage is mainly written for ________.

　　A. teachers whose students have asked their parents to drive them to school

　　B. children who have asked their parents to drive them to school

　　C. parents who drive their children to school

　　D. parents who drive to work

　　46. Which of the following benefits of cycling to school is NOT mentioned in the passage?

　　Ｃ

　　Lilian Hanson, a college student, expects to graduate in about two years. What makes Mrs Hanson different from her classmates is her age — 73 years. She has been studying at college, a few courses at a time, for 27 years.

　　When Lilian Hanson graduated from high school, she went to the bank to borrow money for further education. The banker gave her no encouragement. He didn’t think that a country girl should borrow money to go to college. He thought she should be at home doing work in the house or around the farm. So Lilian Hanson went home and raised a family of nine children instead of going to college.

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