In today’s world, sleep experts say that for a better night’s rest, Americans should turn off their smartphones or iPad before sleeping. Such electronic products make the brain more active, and then influence their sleep. But according to a latest survey, more than 90% of Americans regularly use a computer or some other kinds of electronic products in the hour before bed.

Researchers are finding that man-made light from some electronic products at night may reduce the brain chemicals(化学物质) that help sleep. The researchers showed that sitting in the light from computer tablets clearly lowered levels of the chemical which manages our body clocks and plays a role in the sleep cycle.

In the study, the researchers let volunteers read, play games and watch movies on a tablet for different time while measuring(测量) how much light their eyes received. They found that two hours of sitting before a bright tablet screen at night reduced the sleep chemical levels by about 22%.

Studies of students using computers at night have got the similar results. And researchers say that may not only cause sleeplessness, but also raise the risk of obesity(肥胖症), diabetes(糖尿病) and other diseases.

To be on the safe side, the researchers advise us to use computers less before bed, or at the very least turning down your screen as much as possible.

1. What can we learn from the first paragraph?

A. Americans don’t get enough sleep.

B. Electronic products are very popular.

C. The brain becomes more active at night.

D. Sleep experts never use smartphones.

2.The volunteers in the study did the following things EXCEPT _____.

A. listening to music

B. playing computer games

C. watching movies

D. reading electronic books

3. The underlined word “that” probably means ____ in the passage.

A. making a survey about sleep

B. using smartphones in the daytime

C. sitting in a bright room

D. surfing the Internet at night

4.What does the passage tell us to do to have a good sleep?

A. Learn to use smartphones or iPad.

B. Watch some relaxing TV programs.

C. Turn down the screen to the lowest.

D. Try to sleep earlier than before.

完形填空

Robby was 11 years old when his mother sent him to have his first piano lesson. I always think that a good learner should begin at his _________ age, but Robby said that it had always been his mother’s dream to hear him play the piano. So I _________ him as a student.

Robby didn’t have a basic_________ of music, but he tried very hard. However, he continued and at the end of each weekly lesson he’d always say, “My mom is going to hear me play some day.”But it seemed _________ . He didn’t have a natural ability for music.

One day Robby stopped coming to our lessons. He told me that his mom had been sick and unable to take him to piano lessons, but he was still _________ . He asked if he could take part in my concert (音乐会) and I _________ .

The night of the concert came. The concert hall was _________ with parents, friends and relatives. The concert was going well. Then, Robby came on stage (舞台). Loudly and clearly he said that he had chosen Mozart’s Concerto No 21 in C Major. I was not prepared for what I heard next. His _________ danced on the keys.

He played so well that everyone was on his feet, clapping (鼓掌) excitedly. In tears (眼泪), I ran up on stage, “Oh, Robby! How could you do it?”

“Well, Miss Hondorf, remember I told you my mom was sick? Well, the fact is that she had a serious blood disease and passed away this morning. And well… she was born _________ , so tonight was the first time she ever heard me play. I wanted to make _________ special and show her I could do it! My mother’s dream came true at last.”

1.A. bigger B. larger C. later D. earlier

2.A. received B. protected C. knew D. accepted

3.A. education B. sense C. information D. knowledge

4.A. harmless B. helpless C. hopeless D. meaningless

5.A. writing B. practising C. singing D. talking

6.A. agreed B. disliked C. expected D. decided

7.A. covered B. bored C. filled D. enjoyed

8.A. fingers B. feet C. voice D. legs

9.A. blind B. deaf C. strong D. tiny

10.A. her B. me C. it D. Us

Zach has a stepson, Bradley. One day, Zach drove over to meet Bradley. Bradley was a student in a high school. He neither liked nor disliked Zach, even though he had known Zach for three years. Zach was still trying to get along with Bradley. He told Bradley that he was coming over. Bradley said OK. When Zach got there, he asked if Bradley wanted to drive his car. Bradley had a driver’s license. Bradley said all right. Zach told him not to drive too fast, but he could drive anywhere he wanted. Bradley got on the 210 Road and headed northwest. Zach gave Bradley a few driving tips: Don’t drive next to big cars; don’t drive behind trucks with goods...

On their way back, Zach suggested that they stop at the golf course(高尔夫球场). He wanted to show Bradley how to play golf. But Bradley didn’t like it; he liked his video games. However, Bradley soon found that playing golf was fun and he did very well. The next day, Bradley, for the first time, called Zach. Bradley asked if Zach would come the next Saturday, so they could take a drive and go to the golf course again. Zach said yes, with a happy feeling in his heart.

1. How did Bradley like his stepfather at first?

A. He liked him.

B. He disliked him.

C. He thought his stepfather was a good man.

D. He neither liked nor disliked him.

2.What does the underlined word “license” mean in Chinese?

A. 身份证. B. 执照. C. 护照. D. 银行卡.

3.The reason why Zach tried to get along with Bradley is that _______.

A. he didn’t know how to spend his time

B. he wanted to improve his relationship with Bradley

C. he wanted to show what he could do well in

D. he wanted to teach Bradley as a father

4.The last sentence in the passage implies that ________.

A. Zach had never been happy before

B. Zach was not easy to get along with

C. Zach found hope in what he had done

D. Zach shared the same hobby with Bradley

5.What’s the main idea of the passage?

A. What Zach did in his spare time.

B. How Zach got on well with his stepson.

C. Zach taught Bradley how to play golf.

D. Zach was good at driving and playing golf.

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