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Many years ago, people relied on the sun, the moon and stars to find their way around. Later, the compass was introduced. And now, we have satnav（卫星导航）systems to guide us. A satnav system uses groups of satellites to show the user’s location. They send information to a receiver, such as a smart phone, to show us where we are.
The earliest built satnav system is the Global Positioning System, which belongs to the US. Then there is Russia’s Global Navigation（导航）Satellite System, the European Union’s Galileo and China’s own satellite navigation system, BeiDou.
On October 14, 2017, an ARJ21-700 plane, which was the first domestically-produced jet equipped with the BeiDou navigation system, successfully completed a test flight. The results showed the performance of the system developed by China matches that of similar systems produced abroad, according to the Commercial Aircraft Corporation of China.
Since its introduction in 2000, the Beidou navigation system has seen increasing numbers of applications linked to everyday life, from shared bikes to farming.
When it comes to shared bikes, smart locks that support BeiDou chips offer more accurate positioning than others, making it easier to find a bike.
Farmers can use BeiDou-enabled tractors to plow（犁）the soil and use unmanned aircraft with BeiDou to sow seeds, which can improve efficiency and make better use of resources. BeiDou’s farming applications have spread from Heilongjiang province to Beijing, Liaoning, Shanxi, Hubei and other regions across China.
With its many uses, the Beidou navigation system is even playing a big role in the Belt and Road Initiative（— 带—路）. “To date, the BeiDou system has covered most parts of the Asia-Pacific region, as well as counties along the Silk Road Economic Belt and the 21st Century Maritime Silk Road” said Yang Changfeng, Chief designer of the BeiDou system.
Today, there are more than 20 BeiDou satellites above our heads, and China plans to launch even more this year to expand the BeiDou network to better serve the Belt and Road Initiative.
“As BeiDou expands its overseas reach, it will be increasingly popular in the logistics （物流）industry,” said Miao Qianjun, secretary-general of the navigation services association. “Ships, for example, can use it to position themselves while sailing across oceans to European countries, no longer limited to Southeast Asian regions in the near future.”
1.What is the purpose of the first two paragraphs?
A. To compare some modem satnav systems.
B. To describe the benefits of satnav systems.
C. To tell us how satnav systems were created.
D. To introduce some satnav systems and their functions.
2.What can we know about the Bei Dou navigation system according to the article?
A. It was used successfully in a new jet plane.
B. It is more powerful than other satnav systems.
C. It was introduced to China on October 14, 2017.
D. It wasn’t used in our everyday life until recently.
3.According to the article, the BeiDou navigation system is already widely used for .
A. plowing the soil and sowing seeds
B. improving the efficiency of networks
C. producing more smart locks for shared bikes
D. navigating ships across oceans to European countries
4.Where does the passage probably come from?
A. A government report B. A science journal
C. A newspaper D. A science fiction
高二英语阅读理解困难题查看答案及解析
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Thirty years ago not many people would have dreamed of doing the repairs and decorations in their own homes. In those days labor was fairly cheap and most people would have thought it worthwhile to employ a professional painter and decorator, unless of course they were either very hand up or were in the trade themselves.
Today, however, it is quite a different story. Men and women in all walks of life turn their hands to all sorts of jobs round the house including painting, papering, putting up shelves and wall units, and tiling walls and floors. Some people with no professional training of any kind have even successfully built their own houses. These jobs have been made easier today by the introduction of prepared materials, which require the minimum amount of skill to use. In every high street throughout Britain nowadays there is at least one “Do-It-Yourself” shop containing a vast range of timber, tiles, paints, wallpapers and floor coverings besides tools of every description including power drills and many accessories. “Do-It-Yourself” is a booming（繁荣的） business; all these shops do a roaring trade and look like continuing to do so. Probably the main reason for the craze is the high cost of present-day labor and the shortage of building firms willing to do small jobs.
1.Why did people employ professional workers to decorate homes thirty years ago?
A. Because they could not do it themselves.
B. Because professional workers could do much better.
C. Because they had no time.
D. Because professional workers were very cheap.
2.Thirty years later what changes took place?
A. People could do everything themselves.
B. People with no professional training successfully built their own houses.
C. Few people chose to be a professional worker.
D. New expensive materials required no skills at all.
3.What caused the DIY craze?
A. High cost of professional workers.
B. “Do-It-Yourself” is a booming business.
C. There were fewer building companies.
D. Young people liked to follow the fashion
4.What is the speaker telling us ?
A. Changes in housing..
B. Changes in building.
C. How DIY comes into being
D. Great changes in these thirty
高二英语阅读理解中等难度题查看答案及解析
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Thirty years ago not many people would have dreamed of doing the repairs and decorations in their own homes. In those days labor was fairly cheap and most people would have thought it worthwhile to employ a professional painter and decorator, unless of course they were either very hand up or were in the trade themselves.
Today, however, it is quite a different story. Men and women in all walks of life turn their hands to all sorts of jobs round the house including painting, papering, putting up shelves and wall units, and tiling walls and floors. Some people with no professional training of any kind have even successfully built their own houses. These jobs have been made easier today by the introduction of prepared materials, which require the minimum amount of skill to use. In every high street throughout Britain nowadays there is at least one “Do-It-Yourself” shop containing a vast range of timber, tiles, paints, wallpapers and floor coverings besides tools of every description including power drills and many accessories. “Do-It-Yourself” is a booming business; all these shops do a roaring trade and look like continuing to do so. Probably the main reason for the craze is the high cost of present-day labor and the shortage of building firms willing to do small jobs.
1.Why did people employ professional workers to decorate homes thirty years ago?
A．Because they could not do it themselves.
B．Because professional workers were very cheap.
C．Because they had no time.
D．Because professional workers could do much better.
2.Thirty years later what changes took place?
A．People could do everything themselves.
B．Few people chose to be a professional worker.
C．People with no professional training successfully built their own houses.
D．New expensive materials required no skills at all.
3.What caused the DIY craze?
A．Young people liked to follow the fashion.
B．“Do-It-Yourself” is a booming business.
C．There were fewer building companies.
D．High cost of professional workers.
4.What is the speaker telling us ?
A．How DIY comes into being. B．Changes in building.
C．Changes in housing. D．Great changes in these thirty years.
高二英语阅读理解中等难度题查看答案及解析
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Many years ago, I owned a service station and roadhouse(路边小店) on the main road between Melbourne and Adelaide.
One cold and wet night at about 3:30 a.m., there was a on the front door of our house. A young man, wet from to toe, explained that he had out of petrol about 30 km up the road. He had left his pregnant （怀孕的） wife and his two children at the car and said that he would hitchhike （搭便车） back.
Once I had a can with petrol, I took him back to his car where his two-year-old and four-year-old children were both , saying that they were cold. Once the car had started, I suggested that he me back.
Before leaving, I had turned the heater in the roadhouse, so that when we went in, it was nice and . While the little ones played and ran , I prepared bread and butter for the children, and hot chocolate for the .
It was about 5 a.m. before they . The young fellow asked me how much he should for it and I told him that the petrol pump （加油泵） had ＄15. He offered to pay “call-out fee”, but I wouldn’t accept it.
About a month later, I received a from Interstate, a large bus company that we had been trying to to stop off at our roadhouse for a long time. It out that the young fellow I had helped was its general manager, the most person in the company.
In his letter, he thanked me again and __ me that, from then on, all their buses would stop at my service station. In this case, a little bit of was rewarded with a huge amount of benefits.
1.A. kick B. hit C. beat D. knock
2.A. finger B. shoulder C. head D. hand
3.A. driven B. used C. come D. run
4.A. away B. behind C. over D. out
5.A. supplied B. poured C. equipped D. filled
6.A. sleeping B. crying C. quarrelling D. fighting
7.A. allow B. ring C. lead D. follow
8.A. on B. off C. in D. over
9.A. neat B. hot C. warm D. attractive
10.A. around B. inside C. nearby D. along
11.A. drivers B. guests C. customers D. adults
12.A. left B. arrived C. ate D. disappeared
13.A. give B. pay C. owe D. offer
14.A. appeared B. exhibited C. calculated D. shown
15.A. call B. letter C. check D. notice
16.A. get B. force C. require D. dislike
17.A. pointed B. turned C. worked D. found
18.A. generous B. successful C. serious D. powerful
19.A. praised B. persuaded C. promised D. convinced
20.A. honesty B. success C. confidence D. kindness
高二英语完形填空中等难度题查看答案及解析
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Many years ago, I owned a service station and roadhouse on the main road between Melbourne and Adelaide.
One very cold, wet night at about 3:30 a.m., there was a 36 on the front door of our house. A young man, wet from 37 to toe, explained that he had 38 out of petrol about 30 km up the road. He had left his pregnant(怀孕的) wife and his two children 39at the car and said that he would hitchhike(搭便车) back.
Once I had 40 a can with petrol, I took him back to his car where his two-year-old and four-year-old children were both 41 ,saying that they were cold. Once the car had started, I suggested that he 42 me back.
Before leaving, I had turned the heater43 in the roadhouse, so that when we went in, it was nice and 44 .While the little ones played and ran 45 ,I prepared bread and butter for the children, and hot chocolate for the 46 .
It was about 5 a.m. before they 47 .The young fellow asked me how much he 48 me and I told him that the petrol pump(加油泵) had 49 $15.He offered to pay “call-out fee”,but I wouldn’t accept it.
About a month later, I received a 50 from Interstate, a large bus company that we had been trying to 51 to stop off at our roadhouse for a long time. It 52 out that the young fellow I had helped was its general manager, the most 53 person in the company.
In his letter, he thanked me again and 54me that, from then on, all their buses would stop at my service station. In this 55 ,a little bit of kindness was rewarded with a huge amount of benefits.
1. A．kick B．hit C．beat D．knock
2. A．finger B．shoulder C．head D．hand
3. A．driven B．used C．come D．run
4. A．away B．behind C．over D．out
5. A．supplied B．poured C．equipped D．filled
6. A．sleeping B．crying C．quarrelling D．fighting
7. A．allow B．ring C．lead D．follow
8. A．on B．off C．in D．over
9. A．neat B．hot C．warm D．attractive
10. A．around B．inside C．nearby D．along
11. A．drivers B．guests C．customers D．adults
12. A．left B．arrived C．ate D．disappeared
13. A．gave B．paid C．owed D．offered
14. A．appeared B．exhibited C．calculated D．shown
15. A．call B．letter C．check D．notice
16. A．get B．force C．requite D．hope
17. A．pointed B．turned C．worked D．found
18. A．generous B．successful C．serious D．powerful
19. A．praised B．persuaded C．informed D．convinced
20. A．lesson B．business C．aspect D．case
高二英语完型填空中等难度题查看答案及解析
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.Since I came here two years ago, great changes __________ in the factory and many people want to come here to pay a visit.
A have been taken place B. had been taken place C. have taken place D. are taking place
高二英语单项填空简单题查看答案及解析
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第一节 完形填空 (共15小题；每小题2分，满分30分)
Many years ago, I owned a service station and roadhouse on the main road between Melbourne and Adelaide.
One very cold, wet night at about 3:30 a.m., there was a 11 on the front door of our house. A young man, wet from head to toe, explained that he had ________12 out of petrol about 30 km up the road. He had left his pregnant(怀孕的) wife and his two children 13 at the car and said that he would hitchhike(搭便车) back.
Once I had filled a can with petrol, I took him back to his car where his two-year-old and four-year-old children were both 14 , saying that they were cold. Once the car had started, I suggested that he ________15 me back.
Before leaving, I had turned the heater 16 in the roadhouse, so that when we went in, it was nice and ________17 .While the little ones played and ran around ,I prepared bread and butter for the children, and hot chocolate for the ________18 .
It was about 5 a.m. before they left .The young fellow asked me how much he 19 me and I told him that the petrol pump(加油泵) had shown $15.He offered to pay “call-out fee”, but I wouldn’t accept it.
About a month later, I received a 20 from Interstate, a large bus company that we had been trying to ________21 to stop off at our roadhouse for a long time. It ________22 out that the young fellow I had helped was its general manager, the most ________23 person in the company.
In his letter, he thanked me again and 24 me that, from then on, all their buses would stop at my service station. In this ________25 , a little bit of kindness was rewarded with a huge amount of benefits.
11. A.kick B. hit C. beat D. knock
12. A.driven B. used C. come D. run
13. A.away B. behind C. over D. out
14. A.sleeping B. crying C. quarrelling D. fighting
15. A.allow B. ring C. lead D. follow
16. A.on B. off C. in D. over
17. A.neat B. hot C. warm D. attractive
18. A.drivers B. guests C. customers D. adults
19. A.gave B. paid C. owed D. offered
20. A.call B. letter C. check D. notice
21. A.get B. force C. require D. hope
22. A.pointed B. turned C. worked D. found
23. A.generous B. successful C. serious D. powerful
24. A.praised B. persuaded C. informed D. convinced
25. A.lesson B. business C. aspect D. case
高二英语完形填空简单题查看答案及解析
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Many people rely on a cup of coffee or two to wake them up in the morning or pick them up during the working day, but now a chemist has come up with a speedy alternative to crafting a cup of coffee.
U.S. biochemist Ben Yu has created ‘Sprayable Energy,’ which claims to be the world’s first caffeine - based topical energy spray. He said tired workers can spray a ‘shot’ of caffeine onto their skin without experiencing a strong buzz, loading up on unnecessary calories or being stuck with a nasty aftertaste like they might get from drinking energy drinks or coffee.
The patent-pending caffeine spray is an odourless liquid that is absorbed through the skin and distributed through the body over a number of hours to deliver a caffeine hit that apparently lasts longer than guzzling a cup of coffee.
Each small aluminum bottle of Sprayable Energy contains around 160 sprays - the equivalent amount of caffeine to 40 cups of coffee and the creators say it is a much cheaper way of getting a caffeine fix than popping to a café. The only active ingredient in the spray is caffeine, which can naturally enter the human body through the skin by passing through cell membranes as it is very similar to nicotine in structure. Each spritz of Sprayable Energy contains around a quarter of the amount of caffeine found in a cup of coffee, but apparently has the same effect as a full cup.
The website said: ‘The reason for this is our product not being ingested, isn’t almost entirely metabolised（新陈代谢） by the liver before entering your system and becoming available to your body.’‘Thus, a smaller amount of caffeine can have just the same effect as a very large amount of caffeine ingested through an energy drink or cup of coffee. Sprayable Energy`s website recommends that users apply the spray in places where they normally spritz perfume, such as the neck or wrists, but warns users not to exceed 20 sprays a day.
It claims that after spraying the product on the skin, users will feel ‘awake and focused without being over-stimulated’, which is common with coffee and energy drinks.
1.What can we learn about Sprayable Energy from the passage ?_______.
A. A bottle of Sprayable Energyis cheaper than 40 cups of coffee. .
B. Sprayable Energy lets users not worry about taking in unnecessary calories..
C. Sprayable Energy can be used at least 20 sprays a day
D. The caffeine spray is a colorless liquid that is absorbed through the skin..
2.What does the fifth paragraph mainly tell us ?____
A, Sprayable Energy is taken by mouth...
B. Before Sprayable Energy is absorbed by body, the liver entirely metabolizes it
C. How Sprayable Energy acts on user’s body and how users use the product.
D. Sprayable Energy is convenient but expensive.
3.We can conclude from the passage that ____
A.Sprayable Energy can not be permitted to be used by people now.
B. Sprayable Energy has not already gone into mass production
C. Each spritz of Sprayable Energy has the same effect as a full cup of coffee
D. Sprayable Energy is well received by flagging workers.
4.The writer’s attitude towards Sprayable Energy ______
A. negative. B. positive
C. uncertain D. indifferent
高二英语阅读理解中等难度题查看答案及解析
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The discussion on renewable energy has been going on for at least a decade and people have relied on fossil fuels almost entirely for more than a century. However, the situation when fossil fuels were the most efficient and the cheapest source of energy has been left far in the past. Many countries such as Germany and Sweden have already made significant efforts to fix this situation, employing numerous power plants working on the renewable resources of energy. The most effective among these resources is geothermal（地热的）energy.
Geothermal energy does not depend on the world’s economic and political situation as strongly as fossil fuels do. Besides, extracting（提炼）fossil fuels adds to the price of energy produced from them. Therefore, geothermal energy is much cheaper than traditional ones, saving up to 80% of the costs over fossil fuels.
Being a renewable resource, geothermal energy produces less waste and pollution than traditional energy sources. In geothermal systems, carbon dioxide makes up about 10% of air produced. Overall, in order to produce the electricity that can be used for one hour, the geothermal systems produce 0.1 pound of carbon dioxide and other harmful gases. For a comparison, a power plant producing from gas produces up to 2 pounds of carbon dioxide into the atmosphere, and those power plants that work on coal（煤）produce an astonishing 3.6 pounds of greenhouse gases.
Low costs is another reason why using geothermal power plants should be the first choice for many countries. Geothermal heat systems require 25% to 50% less energy for work compared with the traditional systems for heating or cooling. Besides, geothermal equipment is less big: due to the very nature of geothermal energy, geothermal power plants have only a few moving parts, all of which can be easily sheltered inside a relatively small building. What’s more, the life span of geothermal equipment is rather long. All these make geothermal power stations easy to build and keep.
1.Fossil fuels are more expensive than geothermal energy partly because _______.
A. it is free to use geothermal energy
B. the production of fossil fuels costs a lot
C. fossil fuels are nearly used up
D. geothermal energy doesn’t depend on political situation
2.According to Paragraph 3, what can be concluded from the comparison?
A. Geothermal energy is environmentally friendly.
B. Gas and coal are often used to produce electricity.
C. Coal is much more efficient than gas.
D. The geothermal systems don’t produce harmful gases.
3.Geothermal equipment is usually not as big as that of traditional energy because of______.
A. the life span of geothermal equipment B. geothermal power plants
C. the nature of geothermal energy D. the small buildings
4.What is the main idea of this passage?
A. Many countries have benefited from geothermal energy.
B. Geothermal energy is well accepted.
C. Fossil fuels are being run out of.
D. Geothermal energy has many advantages.
高二英语阅读理解中等难度题查看答案及解析
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Asia-Pacific consumers are the world's largest group of online shopping lovers and many rely on Internet reviews when making purchases, research firm Nielsen said this week.
The firm said 35% of consumers in Asia-Pacific used over 11% of their monthly spending to make online purchases, compared to a global average of 27% of consumers.
South Koreans were the heaviest online buyers in Asia, with 59% direc
ting more than 11% of their monthly spending to online purchases, followed by 41% in China, Nielsen said in a report.A further 31% of Asian
consumers use between 6% and 10% of their monthly shopping purchases to buy items online.More Asia-pacific consumers also intend to buy online in the next six months than those from other regions, with South Koreans and Chinese the most likely to make such purchases.
Among the purchases consumers in the region are likely to make in the next six months are books, clothing, shoes, airline tickets, electronic equipment and hotel reservations.
"Technology and the Internet will very likely basically change how and where shoppers spend their money and interact with sellers,” said Pete Gale, a managing director at Nielsen's Retailer Services.
"We are seeing a strong trend in markets like Korea, where a significant population of online shoppers buy essentials such as groceries, cosmetics and nutrition supplies over the Internet."
Nielsen said opinions posted online were important in Asia-pacific customers' decisions to buy products such as cosmetics, cars, software and food.
Asia-pacific consumers were also the most likely to share dissatisfaction at a product on the Internet compared with consumers elsewhere.
"The increasing accessibility of the Internet and unbelievable popularity of social media and online discussion forums mean today's brands have nowhere to hide, " said Megan Clarken, Asia-Pacific managing director at Nielsen's online division.
Nielsen said in June that social media such as Facebook and Twitter or blogging sites had become powerful tools influencing what people buy and urged businesses to embrace the trend.
1.What influences Asia-Pacific consumers most when making purchases online?
A. Other buyers' comments
B. Powerful online tools
C. The varieties of online item
D. The price and the way to play
2.Who uses more than 11% of their monthly spending to buy online?
A.31% of Asians B. 41% of Chinese
C. 41% of south Koreans D. 26% of global consumers
3.What is the passage mainly about?
A. The trend of doing e-business is speeding up.
B. Asians are most likely to shop with a “click.”
C. Online shopping is developing quickly worldwide.
D. Asia-Pacific consumers are fans of online discussion forums.
高二英语阅读理解中等难度题查看答案及解析
ting more than 11% of their monthly spending to online purchases, followed by 41% in China, Nielsen said in a report.
consumers use between 6% and 10% of their monthly shopping purchases to buy items online.