For many of us, a little time with our smartphones or iPads before sleep is the highlight of the night. But would you still think it is relaxing if you knew that it damages or destroys your sleep? Scientists say that's exactly what it does.
In ancient times, when there were no lamps, telephones or smartphones, the sun was the main source of light. When the sun went down, our brains took that as a signal to start producing melatonin(褪黑素), a chemical that helps us sleep.
However, a healthy amount of melatonin can only be produced in complete darkness.Any light in your bedroom—even the one on the alarm clock or the charging indicator on your cellphone—could disturb the process, not to mention something as bright as smartphone and iPad screens. We tend to hold these much closer than a television or laptop, which allows them to shoot far more light straight into our eyes.
“This is particularly worrisome in populations such as young adults and adolescents, who already tend to be night_owls，” said researcher Brittany Wood at Rensselaer Polytechnic Institute.“Lack of sleep among teens is leading to depression, selfharm, low concentration and poor performance at school，” she added.
While all lights are the enemy of sleep, not all colors of light have the same effect. Our eyes are particularly sensitive to blue light, which is common during the day. Most of the light coming from electronic screens is blue light and it fools our brain into thinking it's still daytime. By contrast, orange or red light has less influence on melatonin production, because our brains recognize it as a signal that the day is ending, according to The Telegraph.
Asking yourself to keep your hands off your smartphone before bedtime might seem unreasonable, but you should at least remember to dim the screen or hold it farther away from your eyes. You could also wear a pair of orange sunglasses that take away the harmful blue light.According to the passage, we can know ________.
| A．it's a good habit to play with smartphones or iPads late into night |
| B．scientists suggest we should avoid using smartphones or iPads |
| C．darkness makes a great impact on the amount of melatonin |
| D．the sun was the only source of light in ancient times |
Which of the following is TRUE according to the passage?
| A．The darker it is, the more melatonin will be produced. |
| B．The lighter it is, the more melatonin will be produced. |
| C．The more melatonin you have, the worse you'll sleep. |
| D．The more electrical equipment you have, the more melatonin will be produced. |
The underlined part in Paragraph 4 refers to those ________.
| A．who are young adults or adolescents |
| B．who don't perform well in school |
| C．who are addicted to a television or laptop |
| D．who are short of sleep at night and perform poorly in daily life |
In the writer's opinion, which is a correct suggestion?
| A．You should go to bed when the sun goes down. |
| B．You should use an orange or red light electronic screen. |
| C．You should wear a pair of blue sunglasses when sleeping. |
| D．You should avoid blue light as possible as you can before bedtime. |
In Asia, there are special competitions where kites have complex designs and are fitted with instruments that make musical sounds as the wind blows through them. Although all kites have a similar structure （结构）, they are widely different in size and shape. Kite-fighting competitions are also held, in which competitions us their kites to attack and bring down their opponents’（对手）kites or cut their strings（线）.
For more than 15 years, the Big Wind Kite Factory has been giving kite-making and kite flying classes for the children on an island in Hawaii. In its kite-making lessons, students can make kites in as little as 20 minutes! Children as young as four years old can learn how to fly a kite. Jonathan Socher and his wife Daphne started the kite factory in 1980. Their kites are made of nylon（尼龙）.Their designs are Hawaiian themes created by Daphne. The designs are cut out of the nylon with a hot knife that seals the edges and then fastened directly onto the kite.
The kite that is used to give lessons is regular diamond kite with a rainbow pattern. The difference between this kite and the ones they make during the lessons is that it is a two-string controllable kite. Big Wind employees fly the kite and for a few minutes show students how pulling on one line and then on the other controls the direction the kite goes in. Then the controls are given to the students.
Jonathan insists that it is not necessary to make a huge impressive kite to have fun making and flying kites. Even the simplest structure can work, and can give hours of fun. Go on, give it a try!Which of the following is true according to the text?
| A．A hot knife is used to iron the nylon. |
| B．Children never fly kites on their own in flying lessons. |
| C．Kite strings must not be cut in kite-fighting competitions. |
| D．Daphne designs kites for the Big Wind Kite Factory. |
What is different about the kite used for flying lessons?
| A．It has two strings. |
| B．It is simple in design |
| C．It has a rainbow pattern. |
| D．It is shaped like a diamond. |
According to Jonathan, what do you need to have fun with kites?
| A．A large kite. |
| B．Any type of kite. |
| C．A complex structure. |
| D．A kite that impresses others. |
What is mainly described in the text?
| A．A kite factory |
| B．Kite-flying lessons. |
| C．Special competitions. |
| D．The kite-making Process. |
Mark and his brother Jason both were looking at the shining new computer enviously. Jason was determined not to go against their father’s wishes but Mark was more adventurous than his brother. He loved experimenting and his aim was to become a scientist like his father.
“Dad will be really mad if he finds out you’ve been playing with his new computer.” Jason said, “He told us not to touch it.”
“He won’t find out.” Mark said, “I’ll just have a quick look and shut it down.”
Mark had been scolded before for touching his father’s equipment. But his curiosity was difficult to control and this new computer really puzzled him.
“It was a strange-looking machine –one his dad had brought home from the laboratory where he worked. “It’s an experimental model,” his father had explained, “so don’t touch it under any circumstances.” But his warning only served to make Mark more curious. Without any further thought, Mark turned on the power switch. The computer burst into life and seconds later, the screen turned into colors, shifting and changing and then two big white words appeared in the center of the screen: “SPACE TRANSPORTER.”
“Yes!” Mark cried excitedly, “It’s a computer game. I knew it! Dad’s only been pretending to work. He’s really been playing games instead.” A new message appeared on the screen:
“ENTER NAMES
VOYAGER 1: …
VOYAGER 2: …”
Mark’s fingers flew across the keyboard as he typed in both of their names.
“INPUT ACCEPTED. START TRANSPORT PROGRAM. AUTO-RETRIEVE INITIATED（自动回收程序已启动）.”
The screen turned even brighter and a noise suddenly rose in volume.
“I think we’d better shut it off, Mark,” Jason yelled, reaching for the power switch. He was really frightened.
But his hand never reached the switch. A single beam of dazzling white light burst out of the computer screen, wrapping the boys in its glow (光芒), until they themselves seemed to be glowing. Then it died down just as suddenly as it had burst into life. And the boys were no longer there. On the screen, the letters changed.
“TRANSPORT SUCCESSFUL. DESTINATION: MARS. RETRIEVE DATE: 2025.”Why did Mark touch the computer against his father’s warning?
| A．He wanted to take a voyage. |
| B．He wanted to practice his skill |
| C．He was so much attracted by it. |
| D．He was eager to do an experiment. |
Where did the boy’s father most likely work?
| A．In an electronic factory. |
| B．In a computer company. |
| C．In a scientific research center. |
| D．In an information processing center. |
Mark thought “SPACE TRANSPORTER” on the screen was the name of .
| A．a computer game | B．a company website |
| C．a software producer | D．an astronomy program |
Why did Jason want to shut off the computer?
| A．He was afraid of being scolded. |
| B．He didn’t like the loud noise and light. |
| C．He didn’t want to play games any more. |
| D．He was afraid something dangerous might happen. |
What happened to the boys at the end of the story?
| A．They were blown into the air. |
| B．They were sent to another planet. |
| C．They were hidden in the strong light. |
| D．They were carried away to another country |
Barditch High School decided to hold an All-School Reunion. Over 450 people came to the event. There were tours of the old school building and a picnic at Confederate Park. Several former teachers were on hands to tell stories about the old days. Ms. Mabel Yates, the English teacher for fifty years, was wheeled to the Park.
Some eyes rolled and there were a few low groans(嘟囔声)when Ms.Yates was about to speak. Many started looking at their watches and coming up with excuses to be anywhere instead of preparing to listen to a lecture from an old woman who had few kind words for her students and made them work harder than all the other teachers combined.
Then Ms. Yates started to speak:
“I can’t tell you how pleased I am to be here. I haven’t seen many of you since your graduation, but I have followed your careers and enjoyed your victories as well as crying for your tragedies. I have a large collection of newspaper photographs of my students. Although I haven’t appeared in person, I have attended your college graduations, weddings and even the birth your children, in my imagination.”
Ms. Yates paused and started crying a bit. Then she continued:
“It was my belief that if I pushed you as hard as I could, some of you would succeed to please me and others would succeed to annoy me. Regardless of our motives, I can see that you have all been successful in you chosen path.”
“There is no greater comfort for an educator than to see the end result of his or her years of work. You have all been a great source of pleasure and pride for me and I want you to know I love you all from the bottom of my heart.”
There was a silence over the crowd for a few seconds and then someone started clapping. The clapping turned into cheering, then into a deafening roar(呼喊). Lawyers, truck drivers, bankers and models were rubbing their eyes or crying openly with no shame all because of the words from a long forgotten English teacher from their hometown.What activity was organized for the school reunion?
| A．Sightseeing in the park. |
| B．A picnic on the school playground. |
| C．Telling stories about past events. |
| D．Graduates’ reports in the old building. |
What can be inferred from Paragraph 2?
| A．Some graduates were too busy to listen to Ms. Yates’ speech. |
| B．Many graduates disliked Ms. Yates’ ways of teaching. |
| C．Some people got tired from the reunion activities. |
| D．Most people had little interest in the reunion. |
We can learn from Ms. Yates’ speech that she _____________.
| A．kept track of her students’ progress |
| B．gave her students advice on their careers |
| C．attended her students’ college graduations |
| D．went to her students’ wedding ceremonies |
What was Ms.Yates’ belief in teaching teenagers?
| A．Teachers’ knowledge is the key to students’ achievements. |
| B．Pressure on students from teachers should be reduced. |
| C．Hard-pushed students are more likely to succeed. |
| D．Students’ respect is the best reward for teachers. |
I left university with a good degree in English Literature, but no sense of what I wanted to do. Over the next six years, I was treading water, just trying to earn an income. I tried journalism, but I didn’t think I was any good, then finance, which I hated. Finally, I got a job as a rights assistant at a famous publisher. I loved working with books, although the job that I did was dull.
I had enough savings to take a year off work, and I decided to try to satisfy a deep-down wish to write a novel. Attending a Novel Writing MA course gave me the structure I needed to write my first 55,000 words.
It takes confidence to make a new start — there’s a dark period in-between where you’re neither one thing nor the other. You’re out for dinner and people ask what you do, and you’re too ashamed to say, “Well, I’m writing a novel, but I’m not quite sure if I’m going to get there.” My confidence dived. Believing my novel could not be published, I put it aside.
Then I met an agent（代理商）who said I should send my novel out to agents. So, I did and, to my surprise, got some wonderful feedback. I felt a little hope that I might actually become a published writer and, after signing with an agent, I finished the second half of the novel.
The next problem was finding a publisher. After two-and-a-half years of no income, just waiting and wondering, a publisher offered me a book deal — that publisher turned out to be the one I once worked for.
It feels like an unbelievable stroke of luck — of fate, really. When you set out to do something different, there’s no end in sight, so to find myself in a position where I now have my own name on a contract（合同）of the publisher — to be a published writer — is unbelievably rewarding（有回报的）.What does the underlined part in Paragraph 1 mean?
| A．I was waiting for good fortune. |
| B．I was trying to find an admirable job. |
| C．I was being aimless about a suitable job. |
| D．I was doing several jobs for more pay at a time. |
The author decided to write a novel ______ .
| A．to finish the writing course |
| B．to realize her own dream |
| C．to satisfy readers’ wish |
| D．to earn more money |
How did the writer feel halfway with the novel?
| A．Disturbed. | B．Ashamed. | C．Confident. | D．Uncertain. |
What does the author mainly want to tell readers in the last paragraph?
| A．It pays to stick to one’s goal. |
| B．Hard work can lead to success. |
| C．She feels like being unexpectedly lucky. |
| D．There is no end in sight when starting to do something. |
About twenty of us had been fortunate enough to receive invitations to a film-studio(影棚)to take part in a crowd-scene. Although our "act" would last only for a short time, we could see quite a number of interesting things.
We all stood at the far end of the studio as workmen prepared the scene, setting up trees at the edge of a winding path. Very soon, bright lights were turned on and the big movie-camera was
wheeled into position. The director shouted something to the camera operator and then went to speak to the two famous actors nearby. Since it was hot in the studio, it came as a surprise to us to see one of the actors put on a heavy overcoat and start walking along the path. A big fan began blowing tiny white feathers down on him, and soon the trees were covered in "snow". Two more fans were turned on, and a "strong wind" blew through the trees. The picture looked so real that it made us feel cold.
The next scene was a complete contrast (对比). The way it was filmed was quite unusual. Pictures in front taken on an island in the Pacific were shown on a glass screen (幕). An actor and actress stood of the scene so that they looked as if they were at the water’s edge on an island. By a simple trick like this, palm trees, sandy beaches, and blue, clear skies had been brought into the studio!
Since it was our turn next, we were left wondering what scene would be prepared for us. For a full three minutes in our lives we would be experiencing the excitement of being film "stars"!Who is the author?
| A．A cameraman. |
| B．A film director. |
| C．A crowd-scene actor. |
| D．A workman for scene setting. |
What made the author feel cold?
| A．The heavy snowfall. |
| B．The man-made scene. |
| C．The low temperature. |
| D．The film being shown. |
What would happen in the "three minutes" mentioned in the last paragraph?
| A．A new scene would be filmed. |
| B．More stars would act in the film. |
| C．The author would leave the studio. |
| D．The next scene would be prepared. |
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