Hot spots of drones (无人机) in Australia are ge...

Hot spots of drones (无人机) in Australia are getting sensors to automatically identify the aircraft and their pilots. Australia’s Civil Aviation Safety Authority (CASA) said it would fix the equipment at the nation’s airports starting next month. The monitors have been planned for some time, but come in the wake of 72 hours of drone-related disorder at the UK’s Gatwick airport last week.

In 2019, Australia will also start a scheme to register drone owners. The UK is also due to introduce a scheme in November that will require recreational drones weighing 250g (0.55lb) or more to be registered.

Almost 140,000 air travellers were delayed last week after reports of drone sightings caused huge delays at Gatwick Airport. UK police are still searching for the criminals, although they have also raised the possibility that witness reports of the aircraft were mistaken. The incident “highlights” the need for a drone-spotting capability (能力), CASA spokesman Peter Gibson told the news agency Agence France-Presse. The supervision system would be able to spot the types of drone being flown, read their serial numbers and work out where the pilot was located, he said. Efforts to identify pilots would be aided by the introduction of the registration scheme for commercial and casual drone owners, he added. “2019 will witness severe action towards drone safety,” said Mr. Gibson. As well as airports and other sensitive locations, the drone-spotting systems will be fixed in other places known to be popular with drone owners such as the Sydney Harbour Bridge.

Authorities in Australia have expressed worries about the number of drones being flown in controlled areas in recent months. Anyone breaking rules could face fines of up to 10,000 Australian dollars ($7,058; £5,600) as well as checks on the safety of their craft. “In 2019 it could be very expensive doing the wrong thing with your drone,” said Mr. Gibson. Events at Gatwick were discussed by ministers in a Christmas Eve phone conference. It is understood that the Cabinet Office “pushed” the Ministry of Defence and the Home Office to update their relevant regulations. They also discussed defence systems across the UK’s airports.

1.What does the underlined phrase “in the wake of” probably mean?

A. indicating.　　 B. causing.

C. preventing.　　 D. following.

2.What helps the system work out the identity of the pilot?

A. Registration scheme.　　 B. The airport.

C. Witness report.　　 D. The government.

3.What do we know from the passage?

A. The recreational drones will be required to register next year.

B. The system will be fixed in all the hot tourist spots.

C. Anyone flying the drones will be fined up to $7,058.

D. There was no solid evidence of drone sights at Gatwick Airport.

4.What’s the best title of the passage?

A. Heavy fines to be given to the pilots

B. Functions of the drone-identifying system

C. Australia to set up drone-spotting system

D. Problems facing drone owners

高三英语阅读理解中等难度题查看答案及解析

If you live in southwest Virginia, don’t be surprised at the sight of a drone(无人机) winging its way, doing airborne delivery over your neighborhood.

On October 20,2019,wing,an American multinational company, began the most advanced trials of commercial drone delivery in Virginia. Residents can now use a smartphone app to order items from Wing partners such as Sugar Magnolia. A Wing drone never sets down at destinations, instead gently lowering the package with a rope outside the customer's door.

Though Wing is the first American company to receive Federal Aviation Administration(FAA)approval to use commercial drones as a widespread service. it is not the only one. On October 22,2019,multinational delivery company UPS, which had also received FAA approval for its drone fleet, announced it would soon begin trial deliveries of goods from health care company CVS. Meanwhile, ridesharing company, Uber, which had partnered with McDonald's, hoped to use its drones to deliver food to hungry customers in San Diego, CA, before the end of 2019. Amazon also plans on testing its trial deliveries of goods in a yet-to-be-determined location in the upcoming months.

Every company's drones can carry packages weighing up to five pounds, and the series of trial are hortative, but widespread drone delivery still has many challenges. These include basic issues like finding places for drones to land, reducing noise pollution, and even ensuring the drones don't run into each other while airborne.

To help sped up the process, NASA announced the Urban Air Mobility Grand Challenge. The competition challenges airspace service providers to find creative solutions to the issues, so that drone deliveries can become a reality soon. “We are moving fast,” said NASA Administrator Jim Bridenstine. “We want to see by 2028 at least one city--maybe more than one--have the ability to control hundreds of drone delivery systems. They could be carrying goods, doing thousands of missions every day.”

1.What can be inferred from the passage？

A.It's impossible to crash other drones during the delivery.

B.People can order items from Wing directly with an app.

C.More companies are expected to try out their drone delivery.

D.Drones deliver items by gently bringing them down to the ground.

2.What does the underlined part “hortative” in Paragraph 4 mean？

A.Encouraging. B.Relaxing.

C.Creative. D.Relative.

3.What's Jim Bridenstine's expectation of drone delivery?

A.To increase the speed of airborne delivery.

B.To see drone delivery systems widely used.

C.To be able to control the airline system.

D.To provide more solutions to goods delivery.

4.Which is the best title for the text?

A.The Future of Drone Delivery

B.How to Achieve Drone Delivery in 2028

C.The Advantages of Using Drone Delivery

D.Drone Delivery May Become a Reality in the US

高三英语阅读理解中等难度题查看答案及解析

Clothing rental is a hot new industry and retailers (零售商) are demanding to get on board in hopes of attracting green shopper.

But is renting fashion actually more environmentally-friendly than buying it, and if so, how much more? Journalist and author Elizabeth Cline investigated (调查) this question and concluded that it's not as sustainable as it seems.

Take shipping, for example, which has to go two ways if an item is rented — receiving and returning. Cline writes that consumer transportation has the second largest carbon footprint of our collective fashion habit after manufacturing.

She writes, ''An item ordered online and then returned can send out 20 kilograms of carbon each way, and increases up to 50 kilograms for rush shipping. By comparison, the carbon impact of a pair of jeans purchased from a physical store and washed and worn at home is 33.4 kilograms, according to a 2015 study by Levi's.''

Then there's the burden of washing, which has to happen for every item when it's returned, regardless of whether or not it was worn. For most rental services, this usually means dry cleaning, a high impact and polluting process. All the rental services that Cline looked into have replaced perchloroethylene (氯乙烯), a carcinogenic (致癌的) air pollutant, still used by 70 percent of US dry cleaners, with alternatives, although these aren't great either.

Lastly, Cline fears that rental services will increase our appetite for fast fashion, simply because it's so easily accessible. There's something called ''share washing'' that makes people waste more precisely because a product or service is shared and thus is regarded as more eco-friendly. Uber is one example of this, advertised as ''a way to share rides and limit ear ownership.'' and yet ''it has been proven to discourage walking,bicycling, and public transportation use.''

Renting clothes is still preferable to buying them cheap and throwing them in the dustbin after a few wears, but we shouldn't let the availability of these services make us too satisfied. There's an even better step — that's wearing what is already in the closet.

1.What is Elizabeth Cline's attitude toward clothing rental?

A.Approving. B.Unfavorable.

C.Objective. D.Enthusiastic.

2.The Uber example in Paragraph 6 indicates that　　　　 .

A.rental services are on the rise

B.clothing rental will be as successful as Uber

C.renting clothes might waste more than expected

D.renting clothes might make people lose interest in fast fashion

3.The author suggests that we should　　　　 .

A.give up renting any clothing

B.purchase inexpensive clothes

C.rent clothes rather than buy them

D.make full use of clothes we've possessed

4.What is the passage mainly about?

A.Clothing rental is a new fashion.

B.Clothing rental is retailers' preference.

C.Renting clothes is not that eco-friendly.

D.Renting-clothes business is in a dilemma.

高三英语阅读理解中等难度题查看答案及解析

Not all parts of the interior (腹地) of Australia are easily _____, because it is very hot and not many people live there.

A. admirable              B. available     C. adjustable      D. accessible

高三英语单项填空中等难度题查看答案及解析

A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together．

It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future．

Now，self-tying shoelaces could actually become a reality this year，proving right one of the film’s fantastical predictions for what 2015 would be like．

Engineers have designed a shoe that can automatically lace up，adjusting itself to the shape of your foot．

Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position，triggering(触发)a tiny motor in the heel that pulls the laces tight.

When you want to take off the shoes，you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue，which loosens the laces enough for you to slip them off．

And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.

Engineer K1evis Ylli，of the Institute for Micromachining and Information Technology in southern Gemany，said the shoes could help a variety of different people.

“One focus is that it could be used in shoes for elderly people who have mobility problems，”he said．“But it could also work for children，or as a lifestyle product．”．

The design，which is still in a prototype(雏形)stage，cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery．An hour of walking is enough to tighten the laces once，and it requires no energy to undo the shoes because that relies on the spring alone.

1.Which of the following can be the best title of the text?

A．A fantastical prediction

B．A great invention in Germany

C．A shoe with self-tying laces

D．A popular lifestyle product

2.What can we learn about the shoes?

A．They can automatically take off．

B．They can adjust themselves to your foot．

C．They need to be charged once．

D．They have been in design for 26 years．

3.From the last paragraph we can know ____________．

A．the shoes have been put into use

B．the shoes need power to take off

C．the shoes promise to be popular

D．how the shoes work to produce energy

高三英语阅读理解中等难度题查看答案及解析

A team of scientists from University of Freiburg in Germany are developing a shoe with a sensor to automatically tie its laces(鞋带)that could be taken off when users click their heels together．

It’s been 26 years since we saw them magically tightening Marty McFly’s Nike boots in the film Back to The Future．

Now，self-tying shoelaces could actually become a reality this year，proving right one of the film’s fantastical predictions for what 2015 would be like．

Engineers have designed a shoe that can automatically lace up，adjusting itself to the shape of your foot．

Simply slip the controller on and pressure sensors will tell the ‘smart shoe’ when your foot is in position，triggering(触发)a tiny motor in the heel that pulls the laces tight.

When you want to take off the shoes，you click your heels together twice and the motor will release a spring(弹簧)in the shoe’s tongue，which loosens the laces enough for you to slip them off．

And the invention doesn’t even need to be plugged in to charge or have its battery replaced because it runs on power generated by the swing of your foot as you walk.

Engineer K1evis Ylli，of the Institute for Micromachining and Information Technology in southern Gemany，said the shoes could help a variety of different people.

“One focus is that it could be used in shoes for elderly people who have mobility problems，”he said．“But it could also work for children，or as a lifestyle product．”．

The design，which is still in a prototype(雏形)stage，cleverly gets the energy of the foot’s swing when opposing magnets in each shoe move past each other. It then uses that power to charge a battery．An hour of walking is enough to tighten the laces once，and it requires no energy to undo the shoes because that relies on the spring alone.

1.Which of the following can be the best title of the text?

A．A fantastical prediction

B．A great invention in Germany

C．A shoe with self-tying laces

D．A popular lifestyle product

2.What can we learn about the shoes?

A．They can automatically take off．

B．They can adjust themselves to your foot．

C．They need to be charged once．

D．They have been in design for 26 years．

3.From the last paragraph we can know ____________．

A．the shoes have been put into use

B．the shoes need power to take off

C．the shoes promise to be popular

D．how the shoes work to produce energy

高三英语阅读理解中等难度题查看答案及解析

Technology is playing a vital role in preservation and ecology research. Drones (无人机) hold huge _______ in the fight to save the world’s remaining wildlife from extinction. So researchers can now track wild animals through dense forests and monitor whales in vast oceans. It’s estimated that up to five living species become extinct every day, making it urgent that universities develop new technologies to capture the data that can persuade _______ to act.

The British International Education Association hosted a conference in January to _______ the importance of technological solutions in protecting vulnerable (易受伤害的) species and ecosystems. Speakers underlined how technology can help _______: drones can circle high above the ocean to spot whales, while certain cameras can identify members of an individual species.

According to Claudio Sillero, biology professor at Oxford University, technology is changing how preservation research is done — but it’s in a(n) _______ way. As technology gets better and cheaper, researchers become better at doing what they were already doing. _______, remote sensing used to be a very technical tool but is now widespread, and everyone uses global positioning system (GPS) for surveying.

But teaching preservation and ecology courses in university _______. Some teach drone surveying methods in depth while others don’t even mention them. “The fact is, using drones is quite a(n) _______ to the interdisciplinary (跨学科的) ‘unknown’ of engineering, and potentially an area where lecturers may not feel confident to teach yet,” Serge Wich, an expert in primate biology says. “Students are taught about _______ technologies such as automatic sound recorders, but drones are often missing from university teaching. Consequently, drone use among researchers is still fairly ________ and focused on getting photos.”

Wich’s team of researchers used techniques to develop a fully automated drone technology system that ________ and monitors the health of endangered animals globally. It’s designed to be cheap, stable and simple to use, so that local communities in developing countries can operate it ________ without technical background. Yet it’s not more widely used on the grounds of researchers’ lack of skills to use this technology. In biology, where drones are used, few can program an algorithm (算法) specifically for their preservation or research problem. “There’s much that needs to be done to ________ those two worlds and to make AI more user-friendly so that people who can’t program can still use the technology,” Wich says.

________, the sad truth is that better technology alone will not save any more species from dying out, Greengrass warns. “As human populations increase, so do threats and pressure on wild places. Preservationists are ________ for not doing enough but it’s often an issue of people, conflict and governance.” Technology may help provide far greater knowledge, but governments still need to act.

1.A. shortage B. threats C. potential D. responsibilities

2.A. researchers B. authorities C. opponents D. professionals

3.A. highlight B. overlook C. assess D. calculate

4.A. education B. preparation C. preservation D. distinction

5.A. evolutionary B. flexible C. virtual D. dramatic

6.A. As a result B. In conclusion C. On the contrary D. For example

7.A. differs B. equals C. multiplies D. struggles

8.A. obstacle B. leap C. equivalent D. exception

9.A. ill-intentioned B. fully-prepared C. well-established D. narrowly-applied

10.A. definite B. vague C. simple D. limited

11.A. controls B. tracks C. supervises D. improves

12.A. earnestly B. independently C. secretly D. impersonally

13.A. bridge B. fix C. dismiss D. grasp

14.A. Therefore B. Moreover C. However D. Otherwise

15.A. fired B. insulted C. qualified D. criticized

高三英语完形填空中等难度题查看答案及解析

Tips on Avoiding Traveling Crowds

If your chosen destination is a hot tourist spot，you are likely to be bothered by masses of tourists，noise and long line ups at your intended site visits. At this point you might wonder why you ever left home. Here are some tips to avoid the crowds and the frustrations that might otherwise ruin your trip.

Book tickets in advance

1. Smart travelers can avoid the queue when visiting abroad-the London Eye， Britain's Houses of Parliament，Italy's Vatican Museums，and the Louvre in Paris. You can keep cool with online ticket sales.

Sign up for special tours.

Often special organizations get after-hours or behind-the-scenes access to famous places. You'll get a guided tour and beat the rush.2.But if large crowds routinely ruin your experience，spending a little extra cash will save your trip.

3.

For shorter lines，fewer people，and better opportunities to interact and enjoy the attraction，stop by during the week. In many cases，you'll have the place to yourself. Take it one step further，and head to museums，galleries or tourism hot spots after 2 pm.4.

Watch the weather

Some travelers often cancel their plans when there are reports of a storm on the approach. 5.By keeping an eye on weather broadcasts，brave souls can often score great last-minute deals or empty attractions.

A.Talk to people.

B.Visit during the week.

C.A note of caution-these tours can be costly.

D.Here are several ways to help you have a good trip.

E.However，sometimes they're not as bad as they sound.

F.Then，visiting school groups will have returned to class.

G.Purchase tickets online before you leave home，and skip the crowds and endless lines at your destination.

高三英语七选五中等难度题查看答案及解析

Washington ______ get very hot and sticky in summertime. July and August are usually the warmest months.

A．must             B．can              C．should            D．might

高三英语单项填空中等难度题查看答案及解析

The Internet of Things (IoT) aims to get everything and everyone talking. Attaching sensors to “things”, such as cows, cars and refrigerator, and then assigning them unique IP addresses allow them to “talk” to the Internet. Of course, the IoT will involve much more than a handful of sensors. Networking company Cisco estimates that 50 billion Internet-connected devices and objects will

be sending over data by 2020.

1.How do researchers get everything and everyone talking?

A. By establishing the IoT and launching a handful of sensors.

B. By connecting sensors with them and appointing them unique IP addresses.

C. By communicating with them all the time through the IoT.

D. By sending people to track them day and night and collect useful data.

2.According to the article, which of the following is NOT TRUE?

A. IoT can help people do preventive maintenance and save money.

B. IoT can help people monitor energy usage and observe price changes timely.

C. IoT can help people adjust their habits and use electrical appliances more smartly.

D. IoT can help people investigate things and update a lot of important data.

3.What else do critics worry about the IoT besides its probably ending up being a fashion?

A. People will lose interest in it as quickly as the thrill over last year’s smartphone.

B. Refrigerators and washing machines will be replaced by other devices in a few years.

C. Whether related companies will provide long-term software updates or not.

D. The software provided by companies will be outdated easily and quickly.

4.According to the passage, when owners of the Tesla Model S electric received a recall notice, they ______.

A. just waited in the car while the maintenance is being done through wireless update

B. were required to go to the nearest 4s store to make some adjustments or repairs

C. could definitely depend on the IoT to send them the charger plug to be fixed

D. had to confirm the update with the help of the equipment provided by the company

高三英语阅读理解中等难度题查看答案及解析