We all wish we could have just one more hour of sleep.

For lucky high school students in England, they’re now going to reset their alarm(闹钟) and get one more hour of sleep. Instead of starting school at 9 a.m., students will begin their school day at 10 a.m.

This is part of a huge study by Oxford University. The experiment( 实验) will see if later classes can help them get good marks.

“We know that something funny happens when you’re a teenager, "a sleep researcher Colin Epsie told The Telegraph. “When you get bad marks, your parents think it is because you're lazy, and everything would be OK if you could get to sleep earlier. Science is telling us that teenagers need to sleep more in the mornings.”

In 2009, some scientists did other similar experiments. They found that 19% students got better marks in Maths and Science.

Is one more hour's sleep good for all students' studies? Yet we’ll have to wait until 2018 to find out these exciting results!

1.Why do the students in England reset their alarm?

A. Because they are too lazy to get up early. B. Because they want to start school at 9 a.m.

C. Because they can get another hour of sleep. D. Because the time of their alarms are wrong.

2.Which of the following is True about the experiment?

A. It is studied by Oxford University. B. We can know the result now.

C. It shows that all students get better marks. D. It tells us more sleep is bad for students.

3.The scientists do the experiments to .

A. know more about students' sleep

B. see if it is good for students’ study

C. help students keep healthy

D. see better marks of Maths and Science

4.What does “it” refer to in Paragraph 4?

A. you get to sleep earlier

B. you want to sleep more

C. you do not do well in study

D. you are a teenager

5.We can find this article from .

A. a travel guide B. newspaper C. a cartoon book D. a food magazine

David walked down the street. All he wanted to do was to play basketball with Jim. But his mother told him to return his sister’s books to the library on his way to Jim’s house.

In his eyes, books and summertime just don’t go together. He thought he read a lot during the school year. And he never went into a library. Today he’d just drop the books off in the outside return box, but it was locked. He had to go inside to return them.

David walked inside the building a few minutes before closing time. He put the books into the return box. After a quick drink of water and a short stop in the toilet, he’d be on his way to meet Jim. He walked out of the toilet. The library lights were turned off. He was locked—in a library.

David tried to use the telephone, but he couldn’t find one. As the sun began to set, he searched for a light and found a little one on the desk. He used a pencil to write a note on a big piece of paper. It read, “I’m locked inside. Please call for help.” He put it on the front door. Surely, someone passing by would see it. He then turned his attention to the library itself.

He was surprised to find that this place was not so bad. Rows and rows of books! When he saw a book about Michael Jordan on the desk, he picked it up. He opened the book and began to read. He felt that being locked in the library didn’t seem to be such a terrible thing.

1.What did David’s mother want him to do?

A. Play basketball with Jim. B. Take a walk in the street.

C. Read books in the library. D. Return his sister’s books.

2.Which of the following sentences could be added to the chart?

A. He searched for a light. B. He put the books into the return box.

C. He had a quick drink of water. D. He turned his attention to the library.

3.What did David find after he was locked in the library?

A. He became interested in this place. B. He was very afraid of the dark.

C. His mom was worried about him. D. His friend became nervous about him.

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