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发布时间:2016-12-08加入收藏来源:互联网点击:
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Look up at the sky at night. What can you see? Before electric lights, people could often see about 2,500 different stars. Now, light fills the skies over our cities. This is called light 44___ . Because of it, people in cities can often only see about ten 45___ .
Most of the time, light helps us. We can 46___ because of it. It gives plants energy. But light isn’t always 47___ . We need times of dark 48___ . One hundred years ago, we had these times of dark. Now the night is like a day. Some scientists are worried about 49___ this light affects (影响) our health. These scientists are studying the effects of light pollution.
Other scientists are finding ways to 50___ light pollution and make our lives better. For example, many streetlights now have covers. The covers focus the light 51___ the ground. They stop the light from going 52___ into the sky. They also save energy. The covers are a 53___ change, but they can 54___ have a positive(正面的)effect.
四、阅读理解(46分)
A)请阅读下面短文,根据短文所给内容从每小题所给的 A、B、C、D 四个选项中选出最佳选项,并在答题卡上将该项涂黑。(每小题 2 分)
A
ART FESTIVAL
14-24 August 2021
VIDEO
An hourly show of videos presented by Pemberton Secondary School students.Video themes are about intellectually(智力)disabled youth and their parents.
Venue:Capital Hall
Dates:14-22 August
Free admission
PERFORMANCE
Alpine Youth Theater presents A Cat's Mind with cheerful songs and dance,promising to give a wonderful performance by 20 young people between 18 and 25 years of age.
Venue:National Arts Theater
Dates:15-23 August
Free admission
CONCERT
Eric Fawkins,two-time Prima Music Prize winner,will perform an evening of classical and jazz ballads.Eric Fawkins' latest CD will also be on sale.
Venue:Victory Theater
Dates:22-24 August
Tickets:available at $50(child), $80(adult)
55.When will A Cat’s Mind be performed?
A. 14-24 August.
B. 15-23 August.
C. 22-24 August.
D. 14-22 August.
56.What is the price of an adult ticket for the concert?
A. $80.
B. $50.
C. $20.
D. $18.
57. Which of the following is true according to the ads above?
A. A group of children perform A Cat’s Mind.
B. Fawkins has won Prima Music Prize once.
C. The video show is presented by the parents.
D. You can buy Fawkins’ latest CD at the concert.
B
British adventurer (冒险家)Alastair Humphreys had ridden his bike around the world,walked across India, and rowed(划船)from Africa to South America . In 2011,however,Humphreys had some of the biggest adventures of his life——and he never even left the United Kingdom.
For a year, Humphreys went on microadventures ——small, low-cost trips close to home. Why did he do this?“I started to think that it was possible to have an adventure anywhere,”he explains. For his first trip, he went hiking with a friend around the M25——a 188-kilometer road that goes all the way around London. Other adventures when we try something new.
Humphreys wanted other people to make this discovery, too, so he decided to share his idea. he challenged people to go on microadventures and send him four-minute videos of their trips. He asked them to do things like climb a hill, go away for a weekend, or choose a random(任意的) place on a map and go there. People from all over the world accepted his challenge and posted their videos on Twitter.
58. Which of the following belong to microadventures? Check and choose the right answer.
①walk across India
②sleep outside on a hill
③go away for a weekend
④swim in the River Thames
⑤row from Africa to South America
⑥hike around the road around London.
A. ①③④⑤
B.①④⑤⑥
C.②③④⑥
D.②③⑤⑥
59. What can we know about Humphreys’ personality according to the passage?
A.Brave, creative and active.
B.Proud, humorous and kind.
C.Careful, quiet and hard-working.
D.Confident, strict and warm-hearted.
60. What would be the best title for the passage?
A. A Big Challenge
B. An Amazing Travel
B. Keep a Trip Record
D.Go for a Microadventure
C
Today, by carefully choosing dog parents, humans have created many different kinds of dog. Each kind has its own look and talents, and its own role within human society. Here are three examples of “a dog’s life” in the world.
Today,many hospitals let specially trained dogs in to bring love and cheer to patients.Shaynee is a therapy(治疗) dog. She visits children who are in hospital. Dogs like shaynee help patients feel calm and at peace, which can be hard in a busy hospital. They help both children and adults stay strong during long hospital stays, and, some suggest, even help them get better.
Today, some beagles(小猎犬) work in airports for the government. They are part of the program called the Beagle Brigade. A beagle is good for the work because of its powerful nose, and ability to follow smells. The Beagle Brigade’s job is to smell everything that comes into the country. They make officers notice illegal(非法的) fruits, vegetables, and other foods in luggage or in mail.The beagles do the job far better than any human could.
While some dogs are working hard, others are free to spend their days resting and playing. Across the world, many pet dogs are treated like children. Many have they own rooms and all the things a dog could want. Some even have their own clothes. Many kinds of wild dogs playing, learning to follow, or even going to classes. Their owners give them the best, and enjoy doing so.
Whether as workers or objects of affection(钟情), dogs have become helpful to humans in many ways. There are plenty of advantages for the dog, too. Many kinds of wild dogs have nearly disappeared from the Earth. However, the domestic dog’s special place as “man’s best friend” has allowed it to survive(存活) in a human world.
61. What is the main idea of Paragraph 2?
A.Hospitals need many special dogs.
B.Dogs can take care of patients.
C.Patients need love in the hospital.
D.Doctors are too busy to see patients.
62. what does the underline word “domestic” in Paragraph 5 mean?
A.Trained.
B.Smart.
C.Hungry
D.Valuable.
63. What’s the purpose of the passage?
A.To ask people to treat dogs as their own children.
B.To explain why humans need beagles in their work.
C.To tell people about the history of dog’s development.
D.To show a good relationship between dogs and humans.
64. Which of the following best shows the structure of the passage?
D
Eight hundred years ago, a man in southern Turkey invented an amazing clock. It was more than 7 meters high. At its base(基座)was a life-size model elephant. Every half hour, something amazing happened. The whole clock came alive: Model birds, dragons, and people started to move.
The clock’s inventor was an engineer named al-Jazari. He lived in Turkey. Al-Jazari was probably one of the greatest engineers in history. Some historians call him “the father of modern-day engineering”.
We know about al-Jazari mostly from a book that he wrote. ____ They include clocks and hand-washing machines. The book also has drawings that show how each machine works.
Many everyday things today-from toys to car engines(发动机)—still use al-Jazari’s ideas.Without his machines with moving parts, we might not have modern-day robots.
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