单选题I can think of many cases ______ students obviously knew a lot of English words and expressions but couldn't write a good composition.

单选题WASHINGTON -- considering the serious warnings lately about Internet viruses(病毒), users may don't use their machines just to keep them safe. In reality, common sense and a few basic tips can keep Internet surfers secure. Anti-virus software is a must, and it should be updated at least once a week to recognize newly viruses. If this is not done, you will meet great troubles. People with broadband Internet connections should have also a firewall. These protect the computer from attacks by hackers(黑客). Then it is time to think about computer habits. Unlike old viruses, which spread only through shared disks, the Internet brings viruses straight to the e-mail box. ff an e-mail with attachment(附件) comes from an unknown sender, or unexpectedly from a known' sender, it should not be opened. On receiving an unexpected attachment from a friend, experts suggest a telephone call to make sure of the mail' s source before opening. If you open the mail without any consideration, you will be easily attacked by the hackers.

单选题What does the speaker want to tell his listeners?

单选题Parents often believe that they have a good relationship with their teenagers (青少年). But last summer, Joanna and Henry noticed a change in their older son: suddenly he seemed to be talking far more to his friends than to his parents. "The door to his room is always shut." Joanns noted. Tina and Mark noticed similar changes in their 14-year-old daughter. "She used to cuddle up (蜷伏) with me on the sofa and talk," said Mark. "Now we joke that she does this only when she wants something, Sometimes she wants to be treated like a little girl and sometimes like a young lady. The problem is figuring out which time is which." Before age 11, children like to tell their parents what's on their minds. "In fact, parents are first on the list." said Michael Riera, author of Uncommon Sense for Parents with Teenagers. "This completely changes during the teen years." Riera explained. "They talk to their friends first, then maybe their teachers, and their parents last." Parents who know what's going on in their teenagers' byes are in the best position to help them. To break down the wall of silence, parents should crate chances to understand what their children want to say, and try to find ways to talk and write to them. And they must give their children a mental break, for children also need freedom, though young. Another thing parents should remember is that to be a friend, not a manager, with their children is a better way to know them.

单选题The second paragraph is mainly concerned with ____________.

单选题听第6段对话，回答第6～7题。

单选题From this passage, we learn that aspirin is usually used to treat _______.

单选题I ______ a taxi when it was raining. A. used to take B. used to taking C. used to be taking D. was used to taking

单选题What was Cartier ordered to do? ______.

单选题What can readers know about slang from this article?

单选题The child is lonely; he would be happier if he had someone that he could play______.[A] about[B] for[C] with[D] at

单选题I tried to make ______ for her although there were already three people there. A. space B. place C. room D. seat

单选题The writer can't put up with stealing because he thinks that ______.

单选题Last July, my 12-year-old car died on California's Santa Arm Freeway. It was an hour before sunset, and I was 25 miles from home. I couldn't reach anyone to pick me up, so I decided to take a bus. Not knowing the routes, I figured I'd just head east. A bus pulled up, and I asked the driver how far she was going. "Four more lights," she said. There was another bus I could take from there. This clearly was going to be a long night. She dropped me off at the end of hex route and told me which bus to look for. After waiting 30 minutes, I began to think about a Very expensive taxi ride home. Then a bus pulled up. There was no lighted number above its windshield(挡风玻璃). It was out of service. But the door opened, and I was surprised to find that it was the same driver. "I just can't leave you here," she said. "This isn't the nicest place. I'll give you a ride home." "You'll drive me home on the bus?" I asked, perplexed(困惑的). "No, I'll take you in my car," she said. "It's a long way," I protested(抗议，反对). "Come on," she said. "I have nothing else to do." As we drove from the station in her ear, she began telling me a story. A few days earlier, her brother had run out of gas. A good Samaritan picked him up, took him to a service station and then back to his car. "I'm just passing the favor along," she said. When I offered her money as a thank-you, she wouldn't hear of it. "That wouldn't make it a favor," she said. "Just do something nice for somebody. Pass it along./

单选题Whatdidthethiefsteal?A.Abagofrice.B.Abagofcorn.C.Astick.