1 . A roadside system that detects if a mobile phone is in use in a passing vehicle is being tested in the UK first. Despite being unable to tell whether the driver is using the phone, it is hoped that it will act as a warning to people who make calls behind the wheel. The technology picks up the phone signal in the vehicle and activates(激活) a roadside warning sign of a mobile phone with a red line through it.
The system can’t tell the difference between a driver and a passenger on a bus, but to some degree it can warn drivers that they can be detected using their phones. Using a directional antenna(天线)，the detector picks up radio waves produced by a phone handset , and measures the signal strength and length of them. When a signal is detected of duration(持续时间) long enough and signal strength strong enough to set off the system， the detector activates the warning sign. The detector is able to distinguish Bluetooth connections or hands- free devices which, when picked up，will prevent the activation.
While this new system is no replacement for a police officer catching someone in the act， it could be enough to make some drivers think twice- and that has to be a positive step forward. However, just as technology has enabled the problem of drivers using mobile phones illegally, it can also be a big part of the solution in getting people to stop. Statistics from the devices will be shared with Norfolk Police， the county council said. The council said that enabling the system to record specific number plates could be a“future development”.
Using a mobile phone at the wheel is one of the four road crimes which can have horrible consequences if it causes a deadly or serious car crash. Law enforcement(执行) technology has been falling behind for a decade and not made any easier by motor producers that encourage users to plug in their phones even before driving.
1. What is the function of the roadside system according to Paragraph 1?| A．To collect information for future use. |
| B．To send out cellphone signals to drivers. |
| C．To detect passengers' wrong use of phones. |
| D．To warn people against using pones while driving. |
| A．It measures the length of the phone. |
| B．It warns drivers with a phone in hand. |
| C．It picks up radio waves from handsets. |
| D．It activates the vehicle's Bluetooth system. |
| A．Swift to Bluetooth while driving. |
| B．Have a close watch of road signs. |
| C．Avoid being picked up by detectors. |
| D．Stop using a hands- free mobile phone. |
| A．Share the devices with the police. |
| B．Make the system more advanced. |
| C．Replace the police with the new system. |
| D．Take steps to settle road safety problems. |
2 . Daphne Soares, a biologist, makes an amazing discovery about alligators. The first time she got really close to an alligator (短吻鳄) was when she was helping to bold down an eight-foot American alligator. It was then that she noticed is face was covered with little black spots. This led to the discovery of the little black dots.
She started her study of the black dots. When she read the books and scientific journals, she learned that people had noticed the dots, but no one really knew what the dots were for.
To find out the secret she placed electrodes (电极) on nerves coming from some of the dots. When the nerves fired, they sent a message to the brain and created a tiny electric current. Just then she heard a small sound over a loudspeaker. She tired to see if the dots acted like eyes and temperature sensors, but nothing worked.
One day she was careless with dropping a tool into an alligator’s tank. When she put her hand in the tank to get the tool out, she made small waves in the water. When they reached the alligator’s face, she heard a noise over the speaker. She then realized that the dots must be sensitive to the changes in pressure when hit by waves of water.
After that, she is now studying blind cavefish. She is trying to learn whether they are blind from birth or lose their sight as they grow up. She is also doing more research on crocodilians (鳄目). She wants to find out how the genes of alligators with pressure sensors only on their faces differ from the genes of crocodilians that have pressure sensors all over their body.
1. Why did Daphne Soares first get close to the alligator?| A．To observe its black dots. | B．To find the secret of its dots. |
| C．To help others to hold it up. | D．To prevent it from moving. |
| A．A little noise was sent out. | B．An electric current created a message. |
| C．The nerves were on fire suddenly. | D．The nerves sensed temperature changes. |
| A．By experiment. | B．By reference. |
| C．By accident. | D．By comparison. |
| A．Cavefish lose sight as they grow up. |
| B．Daphne Soares devotes her energy to research work. |
| C．Alligator’s genes are the same as crocodilian’s. |
| D．Daphne Soares discovered a new species of alligator. |
3 . No human has set foot on the Moon since 1972. Now, after more than four decades of inactivity, interest in putting humans back on the Moon is finally heating up again. But who will get there first?
CHINA
On 14 December 2013, China successfully landed its Jade Rabbit rover(探测车)on the Moon. It is now working on its next exploration mission. Named Chang’e 4, the mission is scheduled to touch down in the Aitken Basin near the end of 2018. If successful, it will be the first landing on the Moon’s far side.
RUSSIA
Russia plans a manned Moon landing in 2030. It is currently working on a project whose idea is that the landers will explore the south pole of the Moon, exploring for resources such as minerals and water ice to be used to provide for a human outpost(前哨站).
INDIA
Following the success of its Chandrayaan-1 in 2008, India announced a follow-on mission. Chandrayaan-2 was meant to cooperate with Russia. But when the Russians failed to deliver the promised lander in 2013, India decided to go it alone. Chandrayaan-2 is about to be sent up in 2018.
U. S. A.
In December 2018, NASA plans to send up the Exploration Mission 1, an uncrewed test of their Orion astronaut capsule in which the craft will circle around the Moon before returning to Earth. All being well, a crewed capsule will follow in 2023. Should the mission prove a success, the astronauts will be the first humans to see the far side of the Moon with their own eyes since Apollo 17 in 1972.
1. What will China do in its next space mission?| A．Improve its Jade Rabbit rover. |
| B．Work with other countries. |
| C．Land Chang’e 4 on the Moon. |
| D．Explore the south pole of the Moon. |
| A．It couldn’t find a partner. |
| B．It didn’t get the lander as planned. |
| C．The Russians refused to work with India. |
| D．It planned to launch Chandrayaan-2 in advance. |
| A．Russia. | B．China. | C．India. | D．U. S. A. |
4 . Research is done all the time and most of it goes straight by us, but sometimes we come across some results that are too interesting not to share. It can be fun to find out about new facts, but sometimes you come across things you’d rather not have known. Luckily, we’ve got some fun facts for you today! It turns out that your hand can tell you a lot about your personality. It’s really quite strange. This research mostly focuses on your fingers.
The secret lies in your ring finger and index finger（食指）. It can say a lot about what kind of man you are. Yes, this test only applies to men because the length of these fingers indicates the level of testosterone（睾酮）in men. There are three types: A, B and C.
A. The ring finger is longer than the index finger
We’re talking about handsome men here. They’re charming and can get along with everyone. Yet they are a little more aggressive and are quick to take risks. This also means that these people often make more money than their colleagues with a shorter ring finger.
B. The ring finger is shorter than the index finger
Men with these hands are very confident and can even be a little self-loving. These people have no trouble being alone often and don’t like being disturbed. When it comes to love, they do not take a risk out there a lot. They’re not the ones to make the first move.
C. The ring finger and index finger are the same lengths
Maybe this says enough already. Men with these hands are good mediators（调停者）, devoted and loving. Everything is balanced with these people. They’re calm and everything seems to run smoothly, as if it’s all organised.
1. Why does the author think the hands are strange?| A．We know nothing about them. | B．Both the hands are different. |
| C．They can let out the personality. | D．Some facts about them are fun. |
| A．The length of the fingers. | B．The existence of testosterone. |
| C．The ability to handle things. | D．The requirement of patience. |
| A．They are attractive. | B．They are confident. |
| C．They are devoted. | D．They are aggressive. |
| A．The new use of the fingers | B．The latest research into the hands |
| C．The three categories of the fingers | D．The secret of ring and index fingers |
5 . Next-generation fitness equipment and robots help you cook dinner. Those are a few of the countless new products expected to be shown next week at CES, the annual tech conference that typically sets the tone for the biggest trends of the year. Home automation, health and 5G will once again be hot topics, but many companies will also introduce pandemic-specific features to reflect our increased time at home.
Each year, reporters, exhibitors and investors typically explore Las Vegas showrooms filled with giant TVs, smart cars and robots, but CES will be online only for the first time in its 54-year history due to Covid-19.
The Consumer Technology Association, the nonprofit behind the four-day event starting Monday, said 1,800 exhibitors from around the world will fill its "digital venue" this year—a number that's down significantly from 4,000 in-person exhibitors last year. The move will allow tech companies from countries which have never attended before to take part in the online exhibition, but could also make it harder for smaller companies to get noticed without a physical showroom.
Registered attendees will be able to stream and re-watch keynotes from companies such as Verizon (VZ) and General Motors (GM), tune in to breakout sessions — about how, for example, technology is playing a role in vaccine deployment—and search through a registry of exhibitors to watch new product presentations.
It'll lack some of the signature ingredients of the trade show, such as hands-on time with the latest small machines and networking. But the technology that makes our lives more connected and convenient will still gain popularity.
1. What are the new products mainly connected with?| A．People’s daily life. | B．Everyday busy work. |
| C．The popularity of 5G. | D．Countless housework. |
| A．It takes place every two years. | B．It attracts fewer exhibitors this year. |
| C．It is held mainly on the Internet. | D．It prohibits small companies to attend. |
| A．Supportive. | B．Disappointed. | C．Doubtful. | D．Casual. |
| A．A brochure. | B．A textbook. | C．A newspaper. | D．A guidebook. |
6 . On October 3, 1945, a ten-year-old boy stood on stage at a contest. One of his teachers had encouraged him to enter the contest after hearing him sing one morning. He placed fifth.
A few months later, he received a guitar for his 11th birthday. What he really wanted was a bicycle. Two of his uncles gave him basic guitar lessons. But he didn’t like singing in public. He was too shy.
Yet something inside kept pulling him back to music. In 1948, his family moved to Memphis, Tennessee. The boy would spend every moment of his free time on Beale Street, the heart of the Memphis Blues Scene. He’d often bring his guitar to school. Yet his eighth grade teacher gave him a C in music. She told him that he had “no gift for singing”.
In 1953, the young man walked into the offices of Sun Records. But the record went nowhere. He tried out for a local singing group, but failed in the audition. He told his father, “They told me I couldn’t sing.”
Then Sam Philips, the owner of Sun Records heard this young man’s record. Sam invited him back to the studio and asked him to sing as many songs as he knew. Yet even then, it was not going well. The young man was about to go home when he suddenly picked up his guitar and started singing a 1946 Blues song, That’s All Right. Philips immediately began taping; he knew this was the sound he’d been looking for. Sun Records released the album. No one had ever heard anything like it before.
Within three years Elvis Presley（猫王）was an international superstar.
1. What did the boy hope for as the 11th birthday gift?| A．A guitar. | B．A birthday party. |
| C．A bike. | D．A music lesson. |
| A．He eventually gave up singing. | B．His teacher encouraged him. |
| C．His family sent him to a music school. | D．He was still addicted to music. |
| A．A short performance. | B．A previous plan. |
| C．A singing contest. | D．A new record. |
| A．Actions speak louder than words. |
| B．Two heads are better than one. |
| C．A friend in need is a friend indeed. |
| D．Where there is a will, there is a way. |
7 . Santo Domingo City—Full Day Tour
Santo Domingo is a magical city, full of history, culture and amazing buildings. It is the first city founded in America. At the beginning of the day we will pick you up at your hotel. On the way to Santo Domingo you will have a tour guide who will explain incredible details about the history of the Dominican Republic. Upon arrival in Santo Domingo you will make a beautiful tour of the most important monuments. You will also be on a romantic street, the first in America, “The Ladies”.
Duration: 6 hours
Hotel Pickup
Hotel pick-up is offered for this tour. Note: if you are booking within 24 hours of the tour/activity departure time, we cannot guarantee hotel pick-up. Once your purchase is complete, we will send you complete contact information (phone number, email address, etc.) for our local operator to organize pick-up arrangements.
Additional Info
Confirmation will be received at time of booking
Not wheelchair accessible
Baby carriage accessible
Service animals allowed
Near public transportation
Babies must sit on laps
Baby seats available
Most travelers can participate
This experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund（退款）
This tour/activity will have a maximum of 150 travelers
Cancellation Policy
For a full refund, cancel at least 24 hours in advance of the start date of the experience.
1. What do we know about Santo Domingo City—Full Day Tour?| A．Santo Domingo is the oldest city. |
| B．Someone collects you at any time. |
| C．It is expected to last for six hours. |
| D．It will be a self-guided tour. |
| A．Wheelchairs. | B．Free cars. |
| C．Service babies. | D．Baby seats. |
| A．When the start date is postponed. |
| B．If the tour is canceled for some reason. |
| C．When the service is pretty terrible. |
| D．If there are less than 150 travelers. |
8 . Jeremy Savage, aged 17, and Ian Marshall, aged 16, went to the Rocky Mountains with their parents for the weekend. On Saturday morning, the two boys decided to climb Cathedral Mountain by themselves while their parents relaxed at the campsite. After three hours, they reached the top with no problems.
However, trouble began when they started the climb down the mountain. On one very dangerous part of the path, Ian fell three metres off the side of the path. Jeremy was able to climb down to where Ian was. Ian was badly injured and could not move. Jeremy had to decide what to do. He needed help, but he did not want to leave his friend. He used water from his own bottle to clean the dirt and blood from Ian’s face and hands. He tried to help Ian stand up, but Ian’s right leg was hurting too much. They had to wait and hope that someone would come and help them.
When the boys did not return to the campsite that evening, their parents became very worried. They got in touch with park workers and began searching for the boys. Soon more than 20 people were looking for the boys.
As night fell, the boys were still missing. While they waited for help to arrive, Jeremy gave Ian his food and water and he let Ian lie on his jacket so he would be more comfortable. As the evening grew darker, Ian told Jeremy to leave him and go back to their parents, but he still did not leave. Jeremy thought it was too dangerous for Ian to be alone. The night was cold and windy, and Jeremy used his jacket and an extra shirt to keep Ian warm.
At sunrise, Jeremy decided that the only way to help his friend was to carry him. So, they started the long climb back to their parents. Sometimes Jeremy carried Ian on his hack. Sometimes he carried him in his arms. Finally, after four hours, they arrived at the campsite where their parents were waiting. “I will always remember what Jeremy did for me,” said Ian. “He saved my life. That is the greatest thing that a person can do for his friend.”
1. What happened to Ian on his way down the mountain?| A．Ian fell three miles off the side of the path. |
| B．Ian climbed down to where Jeremy was. |
| C．Ian was badly injured and could not move. |
| D．Ian decided what to do because Jeremy was injured. |
| A．Because they knew the boys got injured. |
| B．Because the boys returned to the campsite with wounds. |
| C．Because they needed water and food. |
| D．Because the boys did not return to the campsite that evening. |
| A．Jeremy gave Ian his food and water. |
| B．Jeremy let Ian lie on his jacket so he would be more comfortable. |
| C．Jeremy left Ian alone to find some help. |
| D．Jeremy used his jacket and an extra shirt to keep Ian warm. |
| A．Four hours. | B．One night. |
| C．Two days. | D．About 24 hours. |
9 . I lay in the hospital bed with my six-year-old daughter, Elizabeth, holding her in my arm “Mommy, will you stay with me the whole time?” she asked, looking up. “You know I can’t be in the operating room,” I said carefully, not wanting to frighten her. “But Daddy and I will be waiting right outside.” Elizabeth nodded, but her eyes looked troubled.
Elizabeth had broken her right leg in July. Seven months later, it still hadn’t healed (康复). In fact, it had gotten worse. She was here in the hospital for surgery (手术).
I wanted to tell her that everything would be okay and promise that this would be the last time she’d have to go through this. But what if something went wrong again? How could I comfort my daughter when I needed comfort myself?
There was a knock at the door. A nurse? I thought. Time to say goodbye already? But the woman who came in wasn’t a nurse. “Hi,” the woman said. “I’m a volunteer here, and I’ve got something for Elizabeth.” She handed a brightblue box to my daughter.
Elizabeth sat up and took the box. She opened it and started pulling out goodies one by one candies, stickers, a lovely toy in the shape of a star. She hugged the star, perking up for the first time since she entered the hospital. “Thank you,” she said. “I love them.” There was a big smile on her face. It had been so long since I saw that big smile. The gift was a great comfort not only to my daughter, but also to me.
1. Why did the author’s daughter feel upset?| A．She would have surgery on her arm. |
| B．The author had no time to play with her. |
| C．She had to stay in the hospital for a long time. |
| D．The author couldn’t stay in the operating room with her. |
| A．there was no time for her to do so. |
| B．she wasn't sure of the result herself. |
| C．she believed everything would be okay. |
| D．she thought there was no need for her to do so. |
| A．To offer a gift. | B．To say goodbye. |
| C．To comfort the author. | D．To get all the things ready. |
| A．having a rest | B．taking out |
| C．doing her best | D．becoming cheerful |
10 . Crop diversity (多样性）is important to feed the increasing population of our planet. Agricultural experts say having a large variety of plants also helps to protect crops against possible diseases and future risks. Hundreds of thousands of different plants now exist. But many experts say the number has decreased sharply during the past century.
One of the world's largest seed conservation projects has predicted further losses. The Millennium Seed Bank Partnership is warning that up to one hundred thousand plant species could permanently disappear. The rich collection of genes that decide their qualities would disappear with them.
Not all experts agree that a decrease in cultivated(培植的）food crops is a risk. A recent study, led by Paul Heald of the University of Illinois College, showed a different situation, at least in the United States. The study examined records of plant varieties in America during the past century. They found that the total number of vegetable and apple crop varieties in the United States did not fall over the past century. Instead, he says, the study may show a small increase in the number of varieties.
For those who regard it as a major risk, they blame climate change and loss of habitat, normal growth area, for damaging plant life. They note human activities also contribute to the problem. Besides, the United Nations Food and Agriculture Organization says modern business farming is responsible for loss of farmers’ traditional crop varieties. Some scientists and others blame patenting for what they say are losses of crop diversity. A patent is the legal right of an inventor to a process or a product, even a plant. To get this right, the inventor has to demonstrate the qualities that make the patented plant different from other plants.
But the study led by Professor Paul actually failed this assumption. Professor Paul said, “People tend to believe what they want to believe. But as a scientist, I must believe the study results. ”
1. The author begins the text by ______________.| A．listing possible crop diseases |
| B．stating the significance of crop diversity |
| C．giving the definition of crop diversity |
| D．describing a number of existing plants |
| A．show America’s great achievement in protecting crop diversity |
| B．give a different opinion that the number of crop varieties is increasing |
| C．explain the present situation of vegetables and apple crop varieties |
| D．support the viewpoint that the number of crop varieties is decreasing |
| A．the reasons for crop diversity decreasing |
| B．the unfavorable comments on patented plants |
| C．the further losses caused by plant diversity decreasing |
| D．the harmful effects brought by modern business farming |
