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From video games and museums to medical training, VR（virtual reality, 虚拟现实）has been changing our lives for the better. However, this wonderful new technology has a so-far unsolvable problem: It may make people feel sick from the VR experience. The feeling of sickness, caused by VR, is called cybersickness.
"With modern VR systems, the possibility of cybersickness after only 15 minutes' experience is from 40 to 70 percent," Thomas Stoffiregen, a researcher at the University of Minnesota, US said. This sickness is probably caused by sensory conflict （感觉冲突），explained Stoffregen. When you are wearing a VR headset, your body's motion sensors cannot match the information received by your eyes. For example, when we wear a VR headset and ride a virtual roller-coaster, we think we are going up and down, but our bodies stay still. It leads to the loss of balance. Sickness is from our bodies' natural reaction to the experience. Adding to this problem, women are more likely to feel sick from the VR experience than men.
According to a study by Bas Rokers, a scientist at the University of Wiscons in-Madison, US, one reason could be the headsets. To work properly, VR headsets must match up with your PD （pupil distance, 瞳距）. Since they are designed larger PD, not everyone gets the best experience. Rokers found the larger PD distance is, the greater discomfort will cause. Based on his studies, about 90 percent of women have a shorter PD than the headset is made and that's the reason why women are more likely to have cybersickness.
Cybersickness prevents the widespread use of VR technology. Once it becomes comfortable and easy to use, however, it could play a great role in our lives.
1.Which is Right about cybersickness?
A.It's a common problem with VR technology. B.It is caused by one's poor sense of direction.
C.It's more possible for young people to feel sick. D.It only happens to women and children.
2.The example of riding a virtual roller-coaster is used to _________.
A.tell what it is like to have cybersickness B.explain how cybersickness is caused
C.tell people how to avoid cybersickness D.show how cybersickness influences people
3.Why are women more likely to have cybersickness?
A.They have a poor sense of direction. B.VR headsets are only made for men.
C.VR headsets are too large for their PDs. D.They are easy to lose balance.
4.What does the writer think of the VR technology?
A.The VR technology has already played a great role in our lives.
B.There is still something to do before VR technology plays a great role.
C.The VR technology is comfortable and easy to use for everyone.
D.It's impossible for VR technology to be popular in the future.
九年级英语阅读单选困难题查看答案及解析
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During the outbreak of COVID-19, Chinese students use online software to continue their studies. Apart from anxiety, the novel coronavirus outbreak has also brought opportunities for some industries and changes to our lifestyles. According to the market research company International Data Corp, praises and applauds(掌声) are given to high-tech applications like 5G. New mode for various online activities, like remote offices. Online education, and unmanned commerce(商业)and services, has also come to light. Months of staying at home have changed our lifestyles. Online activities have boomed（急速发展）during the epidemic, from telecommuting（远程办公）and online education to online shopping and remote medical services. For employees, especially white-collar workers, telecommuting tools such as video conferences and online office software make working from home more feasible. According to China Daily, Alibaba's al-in-one mobile workplace DingTalk has served more than 10 million enterprises(企业)and over 200 million people. Tencent Meeting can provide free use for over 300 participants per audio or video conference.
Meanwhile, like DingTalk, many apps have been used by students and their teachers for online classes. "Cloud platforms" have also been provided by the Ministry of Education as an approach to continuing education among students across the country.
Internet companies, such as NetEase, recently opened a full chain of contactless recruitment(招募)through online resume submission(提交)and online interviews. The candidates(候选人)can also sign contracts(合同), attend training workshops, and even begin work over the internet.
Many museums and galleries in China have also been closed to visitors, but they have launched various online exhibitions to provide a creative touring experience for the country's vast number of stay-at-home visitors.
To help prevent possible cross-infection(交叉感染)during the fight against the novel coronavirus, virtual(虚拟的)hospitals have been established. For instance, the Tianjin Medical University General Internet Hospital has rolled out(开展)a series of services, including online inquiry(问诊), online prescribing(开处方)and drug delivery.
According to Raymond Wang, partner at global consultancy firm Roland Berger, the outbreak has further proved the importance of the internet and digital economy. He said that the outbreak would improve social efficiency and the digital economy, remote working, and online education. "This is also a big opportunity for China's technology and business model innovation(创新)—the foundations of the digital economy, " he added.
1.What does the first paragraph mainly tell us?
A.A survey from the market research company International Data Corp.
B.Praises and applauds are given to high-tech applications like 5G.
C.Remote offices, online education, and unmanned commerce(商业) and services are booming.
D.Some chances and changes in our life and business after the novel coronavirus outbreak.
2.What does the underlined word "feasible" in Paragraph 2 mean?
A.Workable. B.Changeable. C.Important. D.Necessary.
3.What does the article tell us about the work in different fields?
A.NetEase has received the highest number of resumes ever this year.
B.Many museums and galleries have held online exhibitions.
C.Virtual hospitals have worked more efficiently than physical hospitals.
D.Software companies have made a lot more money recently.
4.What did Raymond Wang think of China's digital economy?
A.He is doubtful about its future in China.
B.He criticizes us for our heavy dependence on it.
C.Its value has been recognized during the fight against the virus.
D.There are many factors in the way of its development.
九年级英语阅读单选困难题查看答案及解析
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Beijing will improve its medical and health services together with 2022 Winter Olympics co-host Zhangjiakou, Hebei Province, to meet the special challenges from the Games.
Winter sports athletes (运动员) sometimes may get hurt, but we have little special medical experience as a young winter sports country. So, we will take action early to train our medical workers.
With two years to go before the Games, the Beijing 2022 Winter Olympics organizing committee together with local health and sports centers has decided to teach the doctors and nurses how to ski and make emergency (紧急) preparations for the Olympics. The activity will be held both in Beijing and Zhangjiakou.
The organizing committee says that it has chosen 41 hospitals and 7 disease prevention centers to be official medical partners of the Games. They provide hundreds of medical workers for the committee. They will open an Olympic green lane (车道) for every facility (设施).
There are many skills that the medical workers should have. English speaking and skiing are two most important skills for the medical teams. Hundreds of medical professionals from Beijing and Hebei are now receiving English and ski training. The medical workers are also trained to get to the injured athlete in the shortest time. They will also know how to work with the local government to make sure the green lanes are clean both on the ground and in the air.
Besides, the organizing committee has set up 101 hotels as official partners for the VIP guests. The hotels will work on details such as providing clean, healthy food with global tastes, special laundry (洗衣房) for winter sports clothing and multilingual (使用多种语言的) services.
1.Why should we take action early to train medical workers?
_____________________________________________________
2.Where do the medical workers come from?
_____________________________________________________
3.What are the most important skills that the medical workers should have?
_____________________________________________________
4.Do the medical workers need to get to the injured athlete as quickly as possible?
______________________________________________________
5.Who will enjoy the wonderful service in the hotels set up by the organizing committee?
______________________________________________________
九年级英语回答问题中等难度题查看答案及解析
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Last year, I spent too much time ______ video game and I decided to quit it.
A．in
B．on
C．with
D．from
九年级英语单项填空简单题查看答案及解析
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the steps, and you can surprisingly find it convenient to visit the Palace Museum virtually with the mobile phone.
A.Follow B.To follow C.Following
九年级英语单选题中等难度题查看答案及解析
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If there are no museums, no theaters, no libraries in the place where you live, will you feel bored at home? There is no need for you to worry about it, as we are living in the Internet era(网络时代). Here are some great online resources(资源). They can make our life colorful.
Online museums
If you are a fan of museums, go to the National Museum of China's official website. There are VR exhibitions(虚拟现实展览), livestreaming(直播)classes and many other resources. For example, an exhibition about Confucius (孔子) is going on right now. You can learn about his life and ancient culture during the Spring and Autumn Period(770-476 BC). There are also pictures and videos of the relics(文物), such as bianzhong and books.
Online concerts
Pop singers are now turning their own homes into livehouses! With microphones and musical instruments, they are holding online concerts. Popular ones include "Doulive Sofa Concert" on Douyin and "I'm With You" on Sina Weibo. Go and find your favorite singers!
If you are more interested in classical music, go to the National Center for the Performing Arts website. You'll find many videos of artists from around the world playing music for you—for free!
Online libraries
There are many online libraries where you can read books for free, such as the National Online libraries Library of China and Shanghai Library. There you can find all kinds of books you like.
1.Because of living in the Internet era, we can have a ________ life.
A.colorful B.boring C.safe D.terrible
2.If you want to know something about Confucius, you can go to _______.
A.Sina Weibo
B.Doulive Soft Concert
C.The National Museum of China's official website
D.The National Center for the Per forming Arts website.
3.You can find your favorite ________on Sina Weibo from the passage.
A.singers B.pictures C.books D.videos
4.Several online resources are mentioned in the passage Except ________.
A.online libraries B.online concerts C.online museums D.online school
5.The best title of the passage is "________".
A.Our happy life B.Livestreaming classes C.Online resources D.Musical instruments
九年级英语阅读单选简单题查看答案及解析
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It's common to play video games as a way to reduce stress. We play games for fun, relaxation and even to kill time. However, one student has found a much more creative way to use video games.
Wu Hele, 17, a Senior 3 student from Jinling High School, Nanjing, has been preparing a gift for his high school - a recreation(重建) of his own school in the game Minecraft《我的世界》.
It is a game that allows players to design landscapes and buildings in all different types of locations with different materials.
For Wu, recreating the school was not just a sudden idea. During Wu's first time visiting the school, he found that it was perfect for rebuilding. "The landscape of the school is regular, and buildings all had a symmetrical, aesthetic feeling, which is suitable for rebuilding with Minecraft," he told Modern Express《现代快报》.
After his first visit to the school, Wu decided to rebuild it. However, this was not an action that could be done in a day. During his three years in high school, Wu has effectively organized his time. After finishing his homework or exercises, he always walked around the school with a notebook. "I measured all the corners by eyeballing(目测) or counting footsteps. I also drew sketches(草图). When I played the game, I would build the school based on my sketches," he told the Bejing Evening News《北京晚报》.
Wu experienced several challenges as he recreated every detail of the school. One of the most difficult challenges was building the gym. At first, he didn't know how to rebuild the shape. Then, Wu learned the conic curve formula(圆锥曲线公式), which was used for the building.
His hard work has paid off. Almost all of the scenes of Jinling High School have been rebuilt in the game. The gate, the teaching buildings, the unique corridor with the wisteria(紫藤长廊)- every tree and flower has been exactly rebuilt. The player can visit the classrooms, gyms and office buildings and view the detailed decorations inside. In addition, their school's pet cat can be seen running downstairs in the teaching building just like in real life.
"I'm the first one who rebuilt our school in this way. I've cherished(珍惜) the three years I've spent here, and I have learned a lot during the whole process," Wu told Nanjing Daily《南京日报》.
回答下面5个问题,每题答案不超过7个词。
1.Which grade is Wu Hele in? ______________________________________
2.Where did Wu rebuild his school? ______________________________________
3.How did he measure all the corners in his school? __________________________________
4.When did Wu decide to rebuild his school? ______________________________________
5.What do you think of Wu’s recreation of Jinling High School? _________________________
九年级英语回答问题中等难度题查看答案及解析
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Listening to an Ipod, playing loud video games and going to see the movies are harmful to your hearing. ___71____
Block(堵住)，walk and turn—that’s what hearing scientists want you to do when you face a loud noise. Block the noise from entering your ears. 72 And turn it down.
About 15% of all school-age children live with some hearing loss. And it’s a growing problem. _ 73
Block It Out!
74 It starts at zero. Sounds that are too loud or sounds that last too long can harm the inner ear’s hair cells (细胞)。 Most people don’t know that listening to headphones at full volume(音量) is harmful. So turn down the volume and protect your ears.
What’s Too Loud?
75 And 60 decibels is totally safe.
A. A 2011 study by Harvard Medical School found that teenage girl have more hearing problems than teenager boys.
B. Your body might try to warn you when a sound is too loud to be safe.
C. Walk away from it.
D. Loud noise can break the inner ear, but we can avoid the noise pollution.
E. the sound unit is decibel(分贝)。
九年级英语信息配对中等难度题查看答案及解析
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When you watch TV and play video games you make global(全球的) warming worse! It may seem hard to believe, but when electricity is made, so are greenhouse gases(温室气体). This means that every time you use electricity you help make global warming worse!
Cars are also making global warming worse. They burn fossil fuels(化石燃料) in their engines, and send lots of greenhouse gases into the air.
Global warming may be a big problem, but we can all help stop it. People can try to drive their cars less. Or even get ones that run on sunlight! You can also help. Let’s try one of these top ideas:
(1) Try to use less electricity. Turn off lights, your television, and your computer when you’ve stopped using them. To make electricity, fossil fuels are burned in big factories. But burning fossil fuels also makes greenhouse gases. You should also try to watch less TV.
(2) Plant trees. Not only is it a fun thing to do, but it is also a great way to lower the number of greenhouse gases in the air. Trees take carbon dioxide out of the air when they grow.
(3) Don’t throw away your rubbish, try to recycle it. If rubbish is not recycled, it is put in the ground. There it rots(腐烂) and makes a greenhouse gas called methane(甲烷).So try to recycle cans, bottles, plastic bags and newspapers. It’ll make you feel great! And it’ll help the Earth.
1.If we _____, we may make global warming worse.
A．use less electricity B．drive a car on sunlight
C．plant trees D．throw away rubbish
2.We may use more electricity by______.
A．turning off lights B．shutting down computers
C．turning up CD players D．turning off TV
3.______ will make global warming worse.
A．Methane B．Cans C．Newspapers D．Bottles
4.Using less electricity does good to global warming because_______.
A．the less electricity is used, the more greenhouse gases are produced
B．the more electricity is used, the more greenhouse gases are produced
C．more electricity is used, less greenhouse gases are produced
D．less electricity is used, more greenhouse gases are produced
5.Which is the following is NOT TRUE according to the passage?
A．Driving cars on sunlight helps to stop global warming.
B．When cars burn fossil fuels, they produce greenhouse gases.
C．When trees grow, they send carbon dioxide into the air.
D．By planting more trees, we can lower the number of greenhouse gases in the air.
九年级英语阅读理解中等难度题查看答案及解析
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When you watch TV and play video games you make global(全球的) warming worse! It may seem hard to believe, but w
hen electricity is made, so are greenhouse gases(温室气体). This means that every time you use electricity you help make global warming worse!Cars are also making global warming worse. They burn fossil fuels(化石燃料) in their engines, and send lots of greenhouse gases into the air.
Global warming may be a big problem, but we can all help stop it. People can try to drive their cars less. Or even get ones that
run on sunlight! You can also help. Let’s try one of these top ideas:(1) Try to use less electricity. Turn off lights, your television, and your computer when you’ve stopped using them. To make electricity, fossil fuels are burned in big factories. But burning fossil fuels also makes greenhouse gases. You should also try to watch less TV.
(2) Plant trees. Not only is it a fun thing to do, but it is also a great way to lower the number of greenhouse gases in the air. Trees take carbon dioxide out of the air when they grow.
(3) Don’t throw away your rubbish, try to recycle it. If rubbish is not recycled, it is put in the ground. There it rots(腐烂) and makes a greenhouse gas called methane(甲烷).So try to recycle cans, bottles, plastic bags and newspapers. It’ll make you feel great! And it’ll help the Earth.
1.If we _____, we may make global warming worse.
A. use less electricity B. drive a car on sunlight
C. plant trees D. throw away rubbish
2. ______ will make global warming worse.
A. Methane B. Cans C. Newspapers D. Bo
ttles3.Using less electricity does good to global warming because_______.
A. the less electricity is used, the more greenhouse gases are produced
B. the more electricity is used, the more greenhouse gases are produced
C. more electricity is used, less greenhouse gases are produced
D. less electricity is used, more greenhouse gases are produced
4.Which is the following is NOT TRUE according to the passage?
A. Driving cars on sunlight helps to stop global warming.
B. When cars burn fossil fuels, the
y produce greenhouse gases.C. When trees grow, they send carbon dioxide into the air.
D. By planting more trees, we can lower the number of greenhouse gases in the air.
九年级英语阅读理解中等难度题查看答案及解析
hen electricity is made, so are greenhouse gases(温室气体). This means that every time you use electricity you help make global warming worse!
run on sunlight! You can also help. Let’s try one of these top ideas:
ttles