A new research on students' sleeping habits says that more than 70% of students do not get enough sleep.

    Researchers found that primary school students get 9 hours and 10 minutes of sleep a night, junior high school students get 8 hours and 6 minutes, and senior high school students get 7 hours and 9 minutes. None of those hours are enough for each group. Not enough sleep can cause many kinds of problems in children and teenagers.

    In 2007, Shanghai Municipal Education Commission asked primary and middle schools in the city to adjust their timetables so that students could get more sleep. Two years later, a research found that students at schools that adjusted their timetables got more sleep than in 2005.

    The researchers hope that the government will take measures to make students have enough sleep. Students in other places may even less sleep than those in Shanghai.

    It's Sunday today. Mrs. Jackson was cleaning the rooms when her husband came in. "Go and cook lunch, dear," said the man. The woman had a look at the clock on the wall and said, "It's only a quarter to ten. We never have lunch before eleven."

    Mr. Jackson said, "There's a big football game on TV at half past eleven." After lunch, Mr. Jackson was sitting on the sofa. The game was nice and he hoped his team would get the gold medal. His five-year-old daughter Emma came in and put her hand on his face. "Oh, how cold your hands are!" the man said, watching the game. "Go and ask your mummy to warm them. "Why is it so cold, daddy?" the girl asked. "Because it's winter now." He said. " Why is it cold in winter, then?" the girl asked. "I never asked so many questions when I was small!" he answered. "That's just why you can't answer it," said the girl.

A Smart Dog

    Rico is a dog who lives in Germany,{#blank#}1{#/blank#} When his owner says the name of a certain toy, Rico can find it. In fact, he seems to know the names of 200 toys!

    {#blank#}2{#/blank#}. They put his toys in a room and then told him to go in the room and find a certain toy. Since nobody was in the room with Rico, he had no help from anyone finding the right toy. The researchers did this test forty times. Rico found the right toy thirty-seven times!

    Then the researcher tried something else. They put seven of Rico's toys in the room and one new toy that Rico had never seen before.{#blank#}3{#/blank#} . This new toy had a name Rico had never heard before. Rico found the right toy seven out of ten times!

    Researchers cannot really say that Rico know words or languages.{#blank#}4{#/blank#}They believed Rico can think about what he hears and thin about what he knows. In fact, Rico seems to thin and remember things as well as three-year-old child.

    From these tests, animal researchers know one thing for sure. Rico has given them a lot to think about.

A. Then they told Rico to go into the room and get the new toy.

B. However, these tests seem to show Rico is smart.

C. Some researchers in Germany wanted to test Rico.

D. His owner has trained him to find his toys.

    Sally and Susan are sisters. They are the same in some ways, but different in other ways.

    Both Sally and Susan have short and dark hair. They are both outgoing and popular. Sally is older and smarter than Susan. She reads more books and likes to talk about the things she reads. Sally isn't athletic.

    Susan is much more athletic than Sally. She plays basketball and volleyball well. And she enjoys watching sports on TV. Sally likes to watch sports, too, but she doesn't like to play them. Both sisters like school and get good grades at school. But Sally is more serious about her homework. Both of them like shopping and playing computer games on weekends.

根据短文内容，回答下列问题。

Dear Linda,

    My best friend Lily always hangs out with a girl who used to bully(欺凌) her. And she doesn't seem to want to be around me any more.

Lisa

Dear Lisa,

    It's normal for friendships to change, and it's possible that the girl has changed over time. Instead of worrying about that, pay more attention to how your own friendship is changing. Hanging out with your friend mifht help to improve your friendship.

Dear Linda,

    I often argue with my mom about my after-school hobbies. Sometimes she starts it. Sometimes I do. Anyway, I feel unhappy after arguing. What should I do?

Mike

Dear Mike,

    Find a right time to talk to your mom. Tell her that you're unhappy after arguing with her and that you'd like to work out a way to avoid arguments.

Dear Linda,

    I always dream dream of becoming a writer. But when I go back to reading a story I've written, it sounds boring and I don't want to finish it. Should I keep trying to write?

Nick

Dear Nick,

    Every writer has been where you are--a place where nothing he writes sounds right. However, you should go on writing as much as you can. The more you practice, the better you'll get. Also, keep reading can help you learn a lot about writing.

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