Read the article and select the best answer. Article: Electronic books have changed the way many people read for pleasure. Now online textbooks are changing the way some students learn and some teachers teach. More than one hundred seventy-five thousand students attend the public schools in Fairfax County, Virginia, outside Washington. Last year, the school system used digital books in fifteen schools. This school year, middle schools and high schools changed from printed to electronic textbooks in their social studies classes. Luke Rosa is a history teacher at Falls Church High School. His students work on laptop computers at school. He explains the idea to them this way. "I mean, it's just like a regular textbook, except it's got it all online." Peter Noonan, an assistant superintendent of schools, said, "The world's changing. And the online textbooks can change right along with the events that are happening." Digital books also cost less than printed textbooks, he said. A student named Melanie Reuter said, "I don't have to carry a textbook around, so that's nice." But another student said, "I don't like it because the Internet sometimes doesn't work." Students also need access to the Internet when they are not at school. About ten percent of students in Fairfax Country do not have a computer or online access at home. Public libraries in the country have free Internet. There are also after-school computer labs as well as computer clubhouse supported by the country. Middle school student Slieman Hakim is happy about that. He said, "My family only has one computer; my sister and I both do our homework on it. So I come here to do my homework. It's good." Other school systems in the area are also considering online textbooks. Question: According to the passage, one of the disadvantages of digital textbooks is that _ . Options: A: they are more expensive B: they can't be used if the computer is offline C: they're soon out of date D: reading online does harm to the students' eyes
B

Read the article and select the best answer. Article: My mind went blank when I saw the gun pointing against the car window as we pulled out of the garage. This can't be happening to me. Then I felt the gun, cold, against my head, and I heard my friend Jeremy saying, "What do you want? Take my wallet," but at the time I thought of nothing. I remember being a little annoyed when the gunman pulled me from the car by the hair. I remember the walk to the house --- Jeremy, me, the two men with two guns. I remember the fear and anger in the gunmen's voices because Jeremy was being slow, and I remember wondering why he was being slow. I did not realize that Jeremy had thrown the keys into the bush. But I remember that sound of the gun hitting Jeremy's head and the feeling as the man who had hold of my hair released me. And I remember the split second when I realized he was looking at Jeremy, and I remember wondering how far I could run before he pulled the trigger. But I was already running, and upon reaching the car across the street, I didn't crouch behind it but screamed instead. I remember thinking there was something ridiculous and illogical about screaming "Help, help!" at eight o'clock on a Tuesday evening in December and changing my plea to the more specific "Help, let me in, please let me in!" But the houses were cold, closed, unfriendly, and I ran on until I heard Jeremy's screams behind me announcing that our attackers had fled. The neighbors who had not opened their doors to us came out with baseball bats and helped Jeremy find his glasses and keys. In a group they were very brave. We waited for the police to come until someone said to someone else that the noodles were getting cold, and I said politely, "Please go and eat. We're O.K." I was happy to see them go. They had been talking of stricter sentences for criminals, of bringing back the death penalty and how the President is going to clean up the country. I was thinking, they could be saying all of this over my dead body, and I still feel that stiffer sentences wouldn't change a thing. In a rush all... Question: When the writer saw the gun pointing against the car window, _ . Options: A: she felt very annoyed B: she lost consciousness C: she felt very much nervous D: she lost the power of thinking
D

Read the article and select the best answer. Article: More than half of the parents in the United States are helping, or have helped, support their adult children who have been hit by high unemployment and poor wages , according to a new survey. It showed that present economic conditions are discouraging young adults from leaving home and forcing those who have already gone, so-called boomerang kids, to return. "Parents are continuing their financial involvement longer than we expected," said Ted Beck, president of National Endowment for Financial Education (NEFE). About 60 percent of parents questioned in the survey said they're helping their adult children who are no longer in school financially. Half are providing housing and nearly half are helping with living expenses. For an increasing number of adult children, the situation is bad. Two-thirds of adult children, aged 18 to 39, who are not in school said they faced tougher financial pressures than previous generations, according to the survey. And nearly one-third of parents agreed that it was easier for them to find their financial feet than for their children. Parents are helping their children out of genuine concern because they do not want to see them struggle. But Beck said that parents who make sacrifices to help their adult children should be careful about their own finances. "If you are taking on extra debt or delaying retirement to help your adult child, you could be making a mistake and putting your own financial future in danger," Beck warned. Boomerang children can also cause other problems for their parents. Thirty percent of parents said they had given up privacy since their adult children moved back home, while more than a quarter have taken on added debt, and seven percent have delayed retirement. But the survey also showed 42 percent of adult children living at home are helping with the cooking and cleaning. Question: According to the survey, we can infer that _ . Options: A: about 30% of parents offer their adult children housing B: one-third of adult children earn money more easily than their parents C: two-thirds of adult children are faced with financial problems in school D: about 50% of parents give money to their adult children to cover the daily cost
A