China's lasting research and development effo...

China's lasting research and development efforts have helped the nation keep its pioneering role in developing 5G mobile communication technology, related standards and the licensing stage．

Chinese telecom companies are trying to keep their leading role in the global race for 5G commercialization（商业化）.They are speeding up R&D of the fifth-generation mobile communication technology. The 5G technology is said to be at least 10times faster than 4G services which means it will enable superfast downloads of " heavy " files like movies, self-driving cars and virtual（虚拟的）reality games. It will do large-scale experiments of using 5G in 17cities. Yang Jie, chairman of China Telecom, said. "We aim to begin commercial 5G services in 2020."

China Mobile Communications Corp is planning to use 5G with AI and cloud technology for a latest network, which is planned to be used in the year 2020. The company has played an important role in the finish of the first stage of global 5G standards. The company will push forward the cloud deployment（云部署） of the superfast technology and build an intelligent network.

Similarly, China Unicom said it will start 5G testing this year, commercialize 5G in 2019and finally carry out large-scale commercialization in 2020.

China is expected to have 576 million 5G users by 2025, according to a report published by EY earlier this month. With the global united standard set to be finished in the next year or so, China is likely to advance its plan for the commercial use of 5G connections to 2019, to possibly become one of the first 5G-ready markets in the world, EY forecast.

In the past, China was behind other countries in publishing 4G and 3G licenses. But in 5G, perhaps China will race ahead in R&D. China is struggling to take a leadership role in the global landscape. China is also hungry to join in the decision of 5G international standards, making it one of the major players.

1.The word "heavy" in the second paragraph refers to ______ ．

A. important　　 B. long　　 C. huge　　 D. valuable

2.What can we infer about the passage？ ______

A. China attaches great importance to the commercial application of 5G．

B. The large-scale experiments of using 5G will be done in 17 cities by China Mobile．

C. China lay behind other countries in using 4G and 3G in the past．

D. China will decide 5G international standards in the future．

3.According to EY forecast, the year when China plans the commercial use of 5G connections is likely to be ______ ．

A. 2018　　 B. 2019　　 C. 2020　　 D. 2025

4.The best title of this passage is ______ ．

A. The 5G technology in China

B. Three communication companies in China

C. The commercial use of 5G in China

D. Chinese carriers wrest （争夺） 5G lead

高一英语阅读理解中等难度题查看答案及解析

Researchers in China and the United States have developed a new cataract(白内障)treatment with cells that has restored vision in babies in a trial and may eventually be used in adults.

The treatment- by doctors and staff members at the University of California, San Diego School of Medicine and Sichuan and Sun Yat-sen universities in China-was published in March 9 edition of the scientific journal Nature.

A cataract is a clouding of the normally clear lens(晶体)of an eye. Typical cataract operation involves the removal of the cloudy lens and the insertion of an artificial one. The new operation has been tested in animals and during a small, human trial. It resulted in fewer complications(并发症)than the current harmful operation, and in regrown lenses with superior visual function in all 12 of the baby cataract patients who received the procedure.

A congenital cataract- lens clouding that occurs at birth or shortly after- is important cause of blindness in children. In the new research, Kand Zhang, head of ophthalmic genetics at US San Diego’s Shiley Eye Institute, and his colleagues relied on the regrown potential of endogenous(同源的)stem cells.

According to Zhang, endogenous stem cells are different from other stem cells that are typically grown in a laboratory, transplanted into a patient, and can have risks of immune（免疫的）rejection, infection or cancers. Zhang told CBS News, “We invented a new operation to make a very small opening at the side of a cataractous lens bag, remove the cataract inside, allow the opening to heal, and promote potential lens stem cells to regrow an entirely new lens with vision.”

The human trial involved 12 babies under the age of 2 who were treated with the new method, while 25 babies received thee standard operation care.. The latter group experienced a higher incidence of pos- operation danger, early- onset eye high blood pressure and increased lens clouding. The scientists reported fewer complications and faster healing among the 12 babies who has the new procedure.

1.What is the text mainly about?

A. The concept of the cataract

B. A new cataract treatment with stem cells

C. Bad effects of post-operation in the cataract

D. The reasons why the cataract comes into being

2.Which of the following best describe the new cataract treatment according to the passage?

A. Convenient　　 B. Comfortable

C. Cheap　　 D. Safe

3.What can we learn about the new cataract treatment?

A. It has more risks

B. It may be used widely

C. It has been put into practice widely

D. It can only restore vision in babies

4.What does the underlined word “congenital” in the fourth paragraph mean?

A. Born　　 B. Strange

C. Serious　　 D. Dangerous.

高一英语阅读理解困难题查看答案及解析

We really expect China’s efforts on food production and safety will ________ after the new food law was introduced.

A. put off　　 B. pay off　　 C. show off　　 D. take off

高一英语单项填空中等难度题查看答案及解析

The past decades have witnessed China's many scientific achievements ______ the development of Shenwei supercomputers is a typical example

A.to which B.for which C.in which D.of which

高一英语单项填空中等难度题查看答案及解析

Researchers at the University of Bedforshire have developed a new technique for powering electronic device（装置）. The system, developed by Professor Ben Allen at the Centre for Wireless Research, uses radio（无线电） waves as power.

Believed to be a world first, the team claims it could eventually eliminate (or get rid of )the need for conventional batteries. The university has now filed a patent application to secure the only rights to the technique.

Professor Allen and his team have created a system to use medium wave frequencies to replace batteries in small everyday devices like clocks and remote controls.

The new technique uses the “waste” energy of radio waves and has been developed as part of the university’s research into “power harvesting”. Professor Allen said that as radio waves have energy―like light waves, sound waves or wind waves―then, in theory, these waves could be used to create power.

“The emerging（新兴的）area of power harvesting technology promises to reduce our reliance on conventional batteries,” he said. “It’s really exciting way of taking power from sources other than what we would normally think of.”

The team is now waiting for the results of the patent application to secure recognition of the technique. Professor Allen said that the team’s achievements had all been done in their “spare time”. “Our next stage is to try and raise some real funds so that we can take this work forward and make a working prototype（模型）and maybe partner up with the right people and take this to a full product in due course,” he said.

“Power harvesting has a really important part in our future, because, just in this country, we dispose of somewhere between 20,000 and 30,000 tonnes of batteries in landfill（垃圾填理）sites every single year－that is toxic chemicals going into the ground.”

He added that development of the product could also be “commercially beneficial”. “The market for this is several billion pounds. We’ve seen market predictions for 2020 which have these kinds of figures, so there’s a lot of commercial potential in this area,” he said.

Pro-Vice Chancellor at the University of Bedfordshire, Professor Carsten Maple, said, “This type of work is a reflection of the university’s growing reputation and experience in conducting innovative（创新的）research.”

1.From the text we know the new technique for powering electronic devices_____.

2.According to Professor Allen, power harvesting technology______.

3.What can we learn about Professor Allen and his team from the text?

4.What is Professor Carsten Maple’s attitude toward the new technique?

5.What is the text mainly about?

高一英语阅读理解极难题查看答案及解析

Researchers at Stanford University have developed a new material that can move heat out of buildings and into space. The researchers say the material can cool buildings even on hot days. The cooling material is a very thin sheet with many layers that could be placed on a roof like solar panels(板). However, instead of turning sunlight into energy as solar panels do, the material turns heat into radiation.

Shanhui Fan is an electrical engineering professor at Stanford University. He says that the panels have a layer of material that is like sand. The panels act like a mirror. They take heat out of buildings and reflect the light from the sun. And he says both the heat and sunlight are sent 100 kilometers into outer space. "It's a structure(构造) that cools itself without electricity input, even under the sun. So, what it does is basically radiate heat to outer space and also reflect the sunlight so it doesn't get heated up by the sun. Mr. Fan says it is like having a window into space. The heat is sent directly into space without warming the air.”

He says buildings in developing countries that do not have electricity or air conditioning could use the panels. "In areas where electricity is out of reach for many people, there is a potential (潜在的) benefit for storing medicine or even food. In many of these situations, being able to reduce the temperature is important. And this would provide a way to do it.”

The researchers say the main problem is creating actual cooling systems using the high-tech panels. They say it may be possible to develop a cooling spray(喷涂) that could be used on present solid structures. They believe the cooling spray technology could be developed in the next three to five years. They say as much as 15 percent of the energy used in the United States is spent providing power to air conditioning systems.

1.The first paragraph mainly tells us ________.

A. living on hot days is no longer a big problem now

B. a new material is created to cool the buildings

C. researchers are developing new solar panels on roofs

D. the new material is a very thin sheet with many layers

2.How does the panel work?

A. It takes in the heat and cools it down.

B. It uses a mirror to reflect the sunlight.

C. It sends heat away right into space.

D. It has a window to let out the heat.

3.The new material is especially useful in areas that ________.

A. suffer high temperature

B. have poor air conditioning

C. have plenty of food

D. are short of power

4.What can you infer from the passage?

A. The appliance of the new panel is still under research.

B. Some people got benefits from producing the panels.

C. People may have problems in using the new material.

D. The new panels may save 15 percent of the energy.

高一英语阅读理解中等难度题查看答案及解析

Parents are often amazed at how fast their child grows and develops. New research has determined that the ability to quantify may develop much sooner than most parents realize.

Kristy vanMarle, professor of the University of Missouri, has determined that contrary to what previous studies have shown, infants（婴儿）are able to quantify substances（物质）—like sand or water—as early as 10 months. As long as the difference between the two substances is large enough, infants will choose the larger amount, especially when it comes to food.

With the assistance of her team researchers, vanMarle tested the quantifying skills of babies by presenting them with two cups: one containing a small amount of food, and one containing a larger amount. Consistently, the babies chose the larger amount.

“Several studies throughout the last 15 years have shown that infants are very good at telling how many objects they see; however, infants don’t seem to count things like water or sand,” vanMarle said. “What we’re saying is that they can quantify substances; it’s just much harder. The infants can see how much food goes into each cup and compare that in their memories. They decide which amount is larger, and they almost always select the larger one.”

This information further refutes（驳斥）the long-held idea that babies “know nothing of the world,” vanMarle said.

“Since psychologists have begun studying infants with sensitive measures, we’ve discovered a lot of early abilities. I think for parents, it should be exciting to know that there’s somebody in there that has some fundamental and basic knowledge of the world, and that knowledge is guiding their development,” vanMarle said.

In the future, vanMarle says this kind of study could be linked to a child’s progress in math-related skills, although programs marketed to increase those abilities, such as “Baby Einstein,” still have mixed reviews when it comes to academic study.

1. The quantifying ability refers to the ability to ________.

A. choose between different substances

B. get much knowledge of the world

C. describe the quantity of something

D. obtain math-related skills

2. What is mainly talked about in Paragraph 4?

A. The process of doing research.

B. The scientific findings.

C. The final choice of infants.

D. The observation of infants’ behavior.

3.Babies choose the larger amount of food ________.

A. by saying numbers            B. with the help of parents

C. on personal preference           D. through their natural abilities

4. What’s the best title of the text?

A. Breakthrough in Baby Studies

B. Amazing Baby-training Ideas

C. Early Human Abilities

D. Unique Quantifying Methods

高一英语阅读理解中等难度题查看答案及解析

Many developed countries have agreed to help the less developed ones but it remains ________ whether they will take action or not.

A. to see　　　　　         B. to be seen　　　　　　     C. seeing　　　　　　 D. seen

高一英语单项填空中等难度题查看答案及解析

Li Ming won the first prize in the English speech contest and I’m glad that his efforts at last ____.

A.      paid off  B. worked out  C. got back  D. turned out

高一英语单项填空简单题查看答案及解析

In the last few years, some researchers have decided to study why kids lie(撒谎)，So they made up a special team of 12 students, all under the age of 21.

Each student was given 36 cards, and each card listed a topic that teens sometimes lie about to their parents, The researchers worked through the cards with the teens, learning what things the kid was lying to his parents about, and why.

By the end of the interviews, the kids saw for the first time how much they were lying and how many of family’s rules they had broken. It was reported that 98% of the teens had lied to their parents.

Out of the 36 topics, the average(平均) teen was lying to his parents about 12 of them. The teens lied about what movie they went to, and whom they went with .They lied about how they spent their afternoons while their parents were at work, and something like that.

Most parents hear their child lie and think he’s too young to understand what lies are or that lying is wrong. They believe their child will stop when he gets older. Many books also advise parents to just let lies go — they’ll grow out of it. But the truth is that kids grow into it. In studies where children are observed(观察) in their natural environment, a 4-year-old child will lie once every two hours, while a 6-year-old child will lie about once every hour and a half.

1.The researchers started the project by ________.

2.The topics on 36 cards are mostly between kids and ________.

3.From this passage, the teens lied on about ________of the 36 topics as an average.

4.On this topic, the advice from many books for the parents is that they ________.

高一英语阅读理解困难题查看答案及解析