1 . Sleep, considered a luxury by many, is essential for a person’s health and happiness. Researchers have found that inadequate sleep and tiredness increase a person’s risk of developing severe medical conditions, such as obesity, high blood sugar levels, and heart disease. Now, a new study has found that getting enough sleep is also the key to improving academic performance.
Jeffrey Gross, the university science professor who led the research, was not trying to find the relationship between sleep and grades when he handed out smart watches to the 100 students in his chemistry class. Instead, the professor hoped the wrist-worn devices (装置), which track a person’s physical activity, would show a connection between exercise and academic achievement.
While Gross’s data showed no relationship between these two factors (因素), the study found something surprising. As the researchers were analyzing their data, they noticed that there was a straight-line relationship between the average amount of sleep a student got and their results in the course’s 11 quizzes, three midterm tests, and the final exam.
Even more interesting, it was not enough for students to just head to bed early the night before a test. Instead, it’s the sleep you get during the days when learning is happening that matters most.
The time students went to bed each night was similarly important. Those who went to bed in early hours of the morning performed poorly, even if the total sleep time was the same as a higher- performing student. “When you go to bed matters,” Gross says, “If you go to bed at 10, or 12, or 1 at night, and sleep for seven hours, your performance is the same. But if you go to bed after 2, your performance starts to go down even if you get the same seven hours. So, quantity isn’t everything. ”
Perhaps the most interesting was the huge effect that small differences in sleep patterns had on the students’ grades. The entire course grades for students averaging six and a half hours of sleep each night were 25% lower than students who averaged just one hour more sleep. Similarly, students who changed their bedtime by even one hour each night had grades that dropped 45% below those with more regular bedtimes.
Who knew getting A’s just required some extra ZZZ’s?
1. Based on his original goals, which best describes Professor Gross’s research findings?| A．Complete. | B．Accidental. |
| C．Convincing. | D．Doubtful. |
| A．University student athletes. | B．Professor Gross’s own students. |
| C．Middle school chemistry students. | D．Volunteers from different universities. |
| A．Making the students wear a special watch. |
| B．Giving the students regular after-class quizzes. |
| C．Using students’ university entrance test results. |
| D．Using the students’ normal test and quiz grades. |
| A．A person who sleeps for a total of 7 hours each night. |
| B．A person who sleeps from 11 p. m. to 6 a. m. each day. |
| C．A person whose normal bedtime changes between 9 p. m. and 12 p. m. |
| D．A person who has a good night’s sleep the night before an important test. |
2 . I remember that it was a fall morning when the orchestra (管弦乐队) teachers came into Miss Newell’s third-grade classroom. “You have hands for the viola(中提琴),” Miss Ciano told me. I was excited because my hands were finally good for something. I told my parents I wanted to play, and naturally, they agreed.
Since I first touched the viola, I haven’t been able to put it down. Ignoring the difficulty, I am pulled closer to it each day.
Classical music is truly my best friend. It is the trusted friend of every man, woman and child. Various feelings are expressed in classical music. I discovered that when I was eleven and played a cello concerto (大提琴协奏曲) of Bach in a competition, the first movement was joyful, but the second movement was mysterious and full of pain. From the piece, I learned that music expresses not only feelings, but also sudden mood changes. By listening to classical music, I know that someone else shares these feelings. Since I am lucky enough to be able to play classical music, I am comforted by it when I am upset. It gives me a way to escape from my problems for a short period. Classical music can express my joy, sadness and anger.
Now look back at that fall day in the third grade and think how gullible I was for believing that anyone, even music teachers, could tell whether hands were perfect for a certain instrument. I’m certain they told me I had “ viola hands” not because they were fortune-tellers(算命师), but because there was a lack of violists in our district. Classical music is one of the best things that ever happened to mankind. If you get introduced to it in the right way, it will become your friend for life.
1. What’s the author’s purpose in writing the first and second paragraphs?| A．To introduce an interesting musical class. |
| B．To show the importance of proper guide. |
| C．To offer the evidence of her gift for music. |
| D．To tell the power of support from parents. |
| A．By developing social skills. | B．By broadening life experience. |
| C．By improving mental health. | D．By building close relationship. |
| A．Firmly opposed. | B．Easily tricked. |
| C．Greatly affected. | D．Secretly hidden. |
| A．Lifetime dream, great effort. | B．Happy childhood, unforgotten experience. |
| C．Special event, sweet memory. | D．Classical music, endless friendship |
3 . Located in the southeast of Canada and with a population of approximately 6 million, Toronto is a big and beautiful city, which has developed from a relatively unknown place over the past half century to the center of culture, trade and communication in Canada.
With its colorful ethnic mix, rich history and breathtaking buildings. Toronto offers non-stop adventures to the tourists. To get a sense of how big, various and magical Toronto is, the best place to start is the CN Tower. From this point, visitors can get a bird's-eye view of the city's amazing scenery and unique geography.
In addition to being an important center of culture, trade and communication in Canada, Toronto is also a major muti-ethnic city. It is the most populous city in Canada and its citizens come from countries around the world and from different kinds of ethnic backgrounds. Every day, in most places of the city, a hundred different languages can be heard on the streets, from Hindi to Greek to French. This, perhaps, explains why former Prime Minister Pierre Trudeau once said that Canada is a mosaic（嵌合体）of cultures and languages rather than a melting pot.
Street signs in Toronto are mostly in English. Weekly and daily newspapers are published in various languages, and the city hosts the successful international film festival each September. It is also home to a popular baseball team the Toronto Blue Jays. Toronto has something for everyone.
Moreover, Toronto has been rated one of the most livable cities in the world by United Nations Human Settlements Programme for many years. At the same time, Toronto is one of the safest, richest cities in the world with the highest standard of living.
1. What's the purpose of the text?| A．To draw more tourists to Toronto. |
| B．To introduce something about Canada. |
| C．To introduce some famous sights of Toronto. |
| D．To tell us how Toronto develops from the past. |
| A．Toronto is in the center of Canada. |
| B．Toronto is a city with a history of half a century. |
| C．The street signs in Toronto are all written in English. |
| D．From the top of the CN Tower we can see the whole Toronto. |
| A．It's worth visiting. |
| B．It's just a common city in Canada. |
| C．There are too many foreigners in the city. |
| D．There aren't many places of interest to visit. |
| A．A personal diary. | B．A news report. |
| C．A tourist handbook. | D．A student's notebook. |
4 . The playing field is never even or equal. Your skills and attitude play a major role in the outcome. Knowing what you can do to have an advantage can make the difference between success and failure.
My kids tell me it's unfair to play with the big children. I tell them that's right. Unfairness is a good thing. There is more to be gained by the effort when things seem unfair. It is true that many things in the world are unfair. But unfair things usually can be a boon to you. For example, the early bird catches the worm. It is unfair that the bird that sleeps in misses out on breakfast but it is nice to know that if it gets up early it is sure to get the worm.
I always try to explain to my kids that complaining about how unfair something is will get them nowhere. Instead, make the most out of it and get on the other side of it. Once you do that you are in the advantage. Above all, you have to focus on gaining that unfair advantage and in order to do that, build your inner strength, When you empower （武装） yourself, you are gaining skills or abilities, confidence and self-esteem （自尊）.
You should look at your place in the world. Where do you want io be financially, spiritually, emotionally, and physically ? You are creating your own story when you empower yourself.
You can build all the advantages that you need to live the life that you want. If you haven't yet, you need to make a list of all the things you want to experience in your new life. This will help you focus on building advantages so that you never have to say that it's Not Fair. When you do this then you will be able to realize that unfairness is a good thing and you will want to teach those around you to see unfairness in this way too.
1. What does the underlined word "boon" in Paragraph 2 probably mean?| A．Something that is very terrible. | B．Something that is very helpful |
| C．Something that is very kind | D．Something that is very scared |
| A．The author wants to introduce his topic |
| B．The author wants to support his opinion |
| C．He wants tell us that having an advantage is needed |
| D．He wants to show skills and attitudes are important in playing games |
| A．Just accept it. | B．Thy to change it. |
| C．Simply ignore it. | D．Make good use of it. |
| A．make yourself better | B．be proud of yourself |
| C．have more confidence | D．know others' advantages |
| A．The way to live a happy life. | B．The right attitude to unfairness. |
| C．Being patient enough to succeed. | D．Staying calm when treated badly. |
5 . Thanks to its harsh environment, Antarctica remained largely untouched by humans for many millennia, allowing a thriving ecosystem to evolve. However, since the 1990s, the last true wilderness on the planet is becoming an increasingly popular destination for adventure-seeking tourists. Now, a new study declares that the visitors may be leaving behind harmful bacteria which could devastate the area's native bird population.
Humans can infect animals with illnesses such as the flu. Researchers, however, believed that the Antarctic animals were immune to the danger due to the continent's extreme weather. However, microbiologist Marta Cerda-Cuellar was not convinced.
She and some colleagues decided to examine waste samples from Antarctic birds for evidence of human bacteria. To ensure the waste was not polluted, the scientists had to collect it from the birds themselves.
The results of their study revealed the presence of several types of human bacteria in the bird waste. This included a common strain (品种) of bacteria that causes food poisoning in humans. The researchers say the bacteria strains were resistant to commonly-used human antibiotics, indicating they were brought in by the visitors, rather than migratory birds (候鸟).
“These strains, which are a common cause for infections in humans and livestock, do not usually cause death outbreaks in wild animals," says Gonzalez-Solis. "However, the emerging or invasive pathogens (病原体) that arrive to highly sensitive populations could have severe consequences and cause the local collapse and extinction of some populations." The researcher also fears the presence of these bugs could foreshadow the arrival of other, more deadly, pathogens as the number of tourists people increases.
Experts believe the only way to prevent the mass destruction of the birds is to impose stricter regulations or, at least, put the ones already in place into effect. For example, while the Antarctica Treaty requires visitors to carry their waste back home to safeguard the pristine environment, the regulation is rarely enforced. Nowadays, some officials are taking steps to save the vulnerable birds before it's too late.
1. What problem is Antarctica facing according to Paragraph 1&2?| A．The increasing number of tourists. | B．The worsening wilderness. |
| C．The replaced native bird population. | D．The spread of infectious illnesses. |
| A．Destroy. | B．Increase. | C．Protect. | D．Benefit. |
| A．To treat their illness. | B．To get their waste. |
| C．To raise them as pets. | D．To study their lifestyles. |
| A．Bacteria can be killed by human antibiotics. |
| B．Extreme weather keeps Antarctic animals healthy. |
| C．Humans bring bacteria to Antarctica. |
| D．Antarctic animals are immune to human bacteria. |
| A．Indifferent. | B．Doubtful. | C．Ambiguous. | D．Optimistic. |
| A．Entertainment. | B．Travel. | C．Nature. | D．Education. |
6 . FOR RENT
Large, sunny office in convenient downtown location, near two bus routes, ample parking at the back. 900 sq. feet divided into two private offices and comfortable reception area, small kitchen, one bathroom. Modern 10-story building with two elevators. $l,750/month. First month's rent and security deposit equal to one month's rent required to move in. To see, call City Office Rentals at 382-0838 between 8:30 and 4:30, Tues. — Sat.
To: Marilyn Sawyer
From: Paul Lebowski
Sent: Tuesday, October 3
Subject: Office rental
Marilyn,
Here's a link to an office rental ad I found online: www.offices. com/10-01.1 think it's worth looking at even though the rent is a bit high. I know it is a good deal more than we are paying now, but look at the size. It's twice as big as our current office, and I'm sure we can use the space.
And it has a kitchen, a bathroom and a reception area just like we have now. Unfortunately it is nowhere near a subway station. That is a convenience I would miss having, but it does have parking, unlike our current office. I'm sure our clients would appreciate that. It would also be good to be in a building with an elevator. I'm really tired of using the stairs. I'd like to see the space as soon as possible. Could you call and make an appointment? Try and get one for tomorrow if you can, because after that I'll be away until next Monday, as you know. Thanks.
Paul
1. How big is Marilyn and Paul's current office?| A．450 square feet. | B．750 square feet. |
| C．900 square feet. | D．1,750 square feet. |
| A．It is near the subway. | B．It is in a 10-story building. |
| C．It is in a building with an elevator. | D．It cost more than the advertised office. |
| A．$900. | B．$1,750. | C．$1,800. | D．$3,500. |
| A．Monday. | B．Tuesday. | C．Wednesday. | D．Thursday. |
7 . Pippi Longstocking, the 9-year-old red-haired hero of children's books, turned 75 yesterday. The first Pippi Longstocking book, written by Swedish author Astrid Lindgren, was published in 1945.
Pippi Longstocking first came to life in 1941, when Ms. Lindgren's daughter, Karin, who was sick in bed for a long time suddenly said to her, “Tell me about Pippi Longstocking.”
The stories Ms. Lindgren made up were about a wild, but good-hearted young girl who lived by herself in a house called Villa Villekulla. The girl lived with her horse and her monkey. She was constantly surprising her neighbor friends with her crazy adventures.
But it wasn't until three years later that Ms. Lindgren began to write down the stories she had told her daughter. When she finished her book, she sent it to a well-known publisher, but the book was turned down. Ms. Lindgren kept working on the book. In 1945, Ms. Lindgren entered her book in a contest being held by a different publisher. Pippi Longstocking won the first prize, and the book came out in November.
Pippi Longstocking was quickly a hit with young readers. Who wouldn't love a girl strong enough to lift a horse, and willing to risk her life to save children trapped in a burning building?
But the book was less popular with some adults, who felt like Pippi set a bad example. Pippi didn't go to school, she lived by herself, and only followed the rules she wanted to follow. But with time. Pippi's good heart won over readers of all ages.
1. Why did Ms. Lindgren write Pippi Longstocking?| A．To make a fortune. | B．To amuse her daughter. |
| C．To arouse sympathy. | D．To make Karin calm. |
| A．Kind and good-looking. | B．Strong but impolite. |
| C．Kind and adventerous. | D．Confident and grateful. |
| A．Lindgren was discouraged. | B．Lindgren entered a contest. |
| C．Lindgren continued the book. | D．Lindgren contact another publisher. |
| A．She had a bad effect. | B．She lacked freedom. |
| C．She made bad rules. | D．She had bad temper. |
8 . If you stop a random person on the street in China, there’s a pretty good chance that their surname would be either Wang, Li, Zhang, Liu or Chen.That’s because those are the five most common surnamesin China — shared by 30% of the population. And the vast majority of the population share just 100 of those surnames. In comparison, the United States reported 6.3 million surnames in its 2010 census.
There are a few reasons for this: China is less racially diverse than countries such as the US, where a wealth of minority groups increase surname diversity (多样性). It also has to do with language; you can’t just add a random stroke (音节) to a Chinese character and create a new surname.
But there’s also another factor at play: technology. With China roaring into the digital age, nearly everything has moved online — from making appointments to buying train tickets.
The main problem is that not all Chinese characters have been coded into computer systems. That meant a world of trouble if you happened to have a rare character in your name. As of 2017, up to 60 million Chinese citizens faced this problem, according to Xinhua.
People with rare characters in their names, which aren’t compatible(兼容的) with existing computer systems, can get left behind— pushing many to change their names for the sake of convenience, even if it means abandoning centuries of heritage and languages.
To try to address this, experts have increased the database from 32,000 characters to 70,000 characters, according to the government. They’re still working to expand it to include more than 90,000 characters, said Chen Jiawei, an associate professor at Beijing Normal University.
1. What can be learned from the comparison according to Paragraph 1?| A．There are fewer common surnames in China. |
| B．Chinese people like sharing the same surname. |
| C．The United States owns the most surnames in the world. |
| D．6.3 million surnames in China have been shared until now. |
| A．New Chinese surnames are easy to create. |
| B．Surname diversity totally depends on technology. |
| C．Minority groups can increase surname diversity. |
| D．Surnames in computer systems are regularly changed. |
| A．They will lose their heritage. |
| B．They have to change their names. |
| C．They should expand the database. |
| D．They may upgrade computer systems. |
| A．To save heritage and languages. |
| B．To keep Chinese traditional culture. |
| C．To give people more choices when naming. |
| D．To let us know more Chinese characters. |
9 . Paris
Paris, the heaven of fashion, culture and entertainment, is the most visited city in the world. It is also held as a numerous tourist destination due to the presence of the Eiffel Tower and several other historic buildings, museums and churches.
Rome
A talk about Europe is incomplete without a mention of Rome. Held as a place where one of the oldest civilizations of the world prospered(繁荣), Rome is where you'd get to see numerous castles, palaces, ancient buildings, fountains, squares and beautiful parks. Several tourists come here especially to have a look at the Renaissance architecture that the buildings of this city boast.
Barcelona
Barcelona, a major city in Spain, is regarded among the 10 best beach cities in the world. The city's coastline has clear waters and a mild climate which makes it favorite destination among sunbathers. Besides that, Barcelona has a glorious past to show off. You must wander through its busy streets and take a look at the historic buildings, castles, churches, parks and museums.
Vienna
If you are a music lover and a steady devotee of Beethoven or Mozart, then a visit to Vienna is like going on a pilgrimage(朝圣). This is because Vienna is the birthplace of these artists. You'd find their houses there and also find their memorial graves. Besides that, Vienna is known for castles, palaces, museums and historic monuments. If you are a devoted art lover, Vienna is the place for you. It has nearly a hundred museums devoted to art!
1. Which place has the most tourists in the world according to the text?| A．Vienna. | B．Barcelona. | C．Rome. | D．Paris. |
| A．The birthplace of artists. | B．Fountains. |
| C．Castles. | D．The Eiffel Tower. |
| A．Art. | B．Sports. | C．Customs. | D．Tours. |
10 . The race to introduce the first commercial flying taxi is officially on. Google, Boeing and Porsche are among 20 companies testing their machines, laying the groundwork for wider production and starting to encourage government officials to bring autonomous all-electric vehicles into the skies in just a few years. Lilium, a German start-up company, has raised more than US $100 million from investors. Its prototype jet—which is still seeking certification from European regulators—is able to take off and land like a helicopter, and is quiet enough "to land in some areas that are traditionally off-limits to aircraft"—even midtown Manhattan.
However, the possibility of air vehicles over New York already represents a clear and present danger to public safety. New York skies are already filled with helicopters. Since 1983, there have been at least 30 helicopter crashes in the city. “There are several challenges to overcome before commuters are flying through the air,” said Dalvin Brown in USA Today. Many of the vehicles now being imagined require “magical electric batteries that doesn't exist—yet.” The best that anyone can do right now with an electric battery is 20 minutes of flight. An even bigger obstacle is gaining approval from the FAA(American Federal Aviation Administration), which has strict rules and guidelines for small aircraft, and the National Highway Traffic Safety Administration.
That's why the first practical commercial tests of autonomous taxis are likely to be outside the US, said Jeremy Bogaisky on Forbes.com. “EHang became the first company to receive approval from Chinese aviation regulators to establish an autonomous air-taxi service in Guangzhou.” To succeed in the US, air taxi companies will need much more than that. Taking a small aircraft through the regulatory forest of safety certification to production can cost US $75 to US $100 million.
1. Which is special about the Lilium prototype jet, according to the passage?| A．It's the most expensive model. | B．It's already available on the market. |
| C．It's suitable to be used in cities. | D．It's suitable for midtown Manhattan. |
| A．The problems to overcome. | B．Public concerns about safety. |
| C．Related official policies. | D．Potential market risks. |
| A．Quick and economical. | B．Strict and expensive. |
| C．Difficult and time-saving. | D．Unsafe and impractical. |
| A．Environment | B．Travel | C．Entertainment | D．Technology |
