湖南省永州市2021年中考英语试题.docx
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1、湖南省永州市2021年中考英语试题学校:_姓名:_班级:_考号:_一、阅读单选Chinas unbelievable high-speed rail networkAt the beginning of the 21st century China had no high-speed railways. Slow, crowded and often uncomfortable trains ran across this vast country, with low average speeds making journeys such as Shanghai-Beijing a test
2、of travel.Today, its a completely different picture. With 37,900 kilometers of lines, linking all of its major big cities. China has the worlds largest work of high-speed railways. Half of that total has been completed in the last five years alone, with a further 3,700 kilometers due to open in the
3、coming months of 2021. The network is expected to double in length again, to 70,000 kilometers, by 2035.1How were the trains in China at the beginning of the 21st century?AFast.BComfortable.CCrowded.2How many kilometers of lines are due to open in the coming months of 2021?A3,700.B37,900.C70,000.341
4、.0% of kids aged _ use the Internet.A59B1013C14174What percentage of kids gets news or information online?A89%.B76%.C38%.5What do 43% of kids usually do on the Internet?APlay games.BBuy books.CSend or receive instant messages.Can a green machine help the worlds poorest kids learn better? Nicholas Ne
5、groponte thinks so. He and his team of scientists have invented a new type of computer. As a result, many children who live in poverty (贫穷) will have their own laptop computers!Negroponte works at a university. He started a group called One Laptop Per Child (OLPC). The people at OLPC dont work for m
6、oney. They work to help children learn. OLPC makes computers that dont cost a lot. Then they sell the machines to governments of countries that have many people live in poverty. The governments then give the computes to kids for free.The XO Laptop computers are made for school-aged children in devel
7、oping nations. Many of these children live in faraway areas and go to schools with classrooms. In order to work, the laptops have to be lasting and student-friendly.The machines have many fun characters like a built-in video camera, voice recording, and games. The WiFi lets students share informatio
8、n on the Web and read e-books. They also can make music and chat with friends.Another great character is that it can last for a long time. It can be hand charged and also can be recharged by connecting to a solar panel. Because of these characters the XO laptops make learning fun while helping the e
9、nvironment.The computers have a colorful name“the green machine”. Negroponte thinks they could make a difference in the lives of millions of kids. He says, “Every problem you can think ofpoverty, peace, the environmentis solved with education.”OLPC plans to give out over ten million computers in the
10、 next few years. Kids in Thailand, Nigeria, Brazil, and Argentina will get most of them. China and Egypt also want to take part in the program. After that, Negroponte hopes to sell computers to other countries with high poverty.6Negroponte thinks his laptop computers will help the worlds poorest kid
11、s to _.Awork at homeBgo to school on timeClearn better7What can we know about the people at OLPC according to Paragraph 2?AThey work for money.BThey give computers to kids for free.CThey sell computers to governments with many people living in poverty.8Why do XO laptops make learning fun while helpi
12、ng the environment?ABecause they are lasting and student-friendly.BBecause they are made for school-aged children.CBecause they have a colorful name.9What does the underlined word “charged” mean in Chinese?A携带B充电C使用10Who will get most of the computers in the next few years?AKids in Thailand.BKids in
13、 China.CKids in Egypt.Dogs might have the latest tools in the fight against cancer (癌症); their noses! Researchers at Californias Pine Street Foundation (PSF) say they have trained five dogs to smell cancer on a prisons breath. This could be exciting news.A dogs sense of smell may be 10,000 to 100,00
14、0 times stronger than ours. But can dogs really smell illness? PSF researcher Michael McCulloch says yes. “We were very surprised by how exact they were,” he said. “They were telling who had cancer, and they were also saying who didnt.”Dogs in the Pine Street Foundation test were trained to sit when
15、 they smelled cancer. How well did they perform? Take a look at this chart to find out.Breath Sample Number of Times the Dogs Sat downNumber of Times the Dogs Kept StandingBreath from lung cancer patients56410Breath from healthy persons4708McCulloch and his team asked four healthy people and one wit
16、h cancer to blow into plastic tubes (塑料管). Special materials in the tubes kept the things of each breath. The tubes were then placed one yard apart. Finally, the dogs were allowed to smell the tubes. Each dog had been trained for three weeks to sit when it smelled cancer. Ninety-nine percent of the
17、time, the dug sat next to the tubes blown into by patients with lung cancer. The dogs were right 88 percent of the time about breast cancer.No lab test for cancer has given more correct results than this test. The results are so amazing that many experts question the dogs smelling power. They wonder
18、 if there were other reasons why the dogs did so well. For example, they thought the way the dog trainers behaved could have influenced how the dogs acted. However, most experts agree that this study is important. The information could help scientists create a simple breath test for cancer in the fu
19、ture. Once again, humans may be getting a helping paw or nosefrom their best animal friends.11Whats the latest tool a dog might have in the fight against cancer?ATooth.BNose.CEar.12What happened first in the Pine Street Foundation test?AThe dogs were trained.BThe tubes were placed one yard apart.CTh
20、e dogs smelled the tubes.13What was a dog supposed to do when it smelled cancer?ASmell again.BTurn around.CSit down.14Look at the chart. How many times did the dogs keep standing when they smelled the breath from healthy persons?ALess than 10 times.BAlmost 600 times.CAbout 700 times.15Why do many ex
21、perts question the dogs smelling power?ABecause no lab test for cancer has given more correct results.BBecause the dog trainers influenced how the dogs acted.CBecause they dont think this study is important.What do you do with your rubbish? Throw it out? You dont know what youre missing! Look closel
22、y at the two figures on your left. They were made from things most people throw away. The figures were made from used bottle caps. Those two bottle-cap figures were exhibited (展示) in a museum.Folk art is art made by common people who have not been trained as artists. Their work is often based on tra
23、ditions in their culture. Fine art, on the other hand, is usually made by people who have had training in art. Works of fine art are valued for their artistic beauty. They are supposed to be looked at but not used. Works of folk art, however, are often made for everyday use. There were more than 800
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