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题型:阅读理解 题类:模拟题 难易度:普通

北京师范大学附属中学2019届高三英语高考信息卷(四)

阅读理解

    We can video chat with astronauts aboard the International Space Station and watch live footage from the frozen heights of Everest. But communicating with a submarine (潜艇)or a diver is not so easy. The lack of practical methods for sharing data between underwater and airborne devices has long been a frustration for scientists. The difficulty stems from the fact that radio signals work perfectly in air travel but poorly in water. Sonar (声呐)signals used by underwater sensors reflect off the surface of the water rather than reaching the air.

    Now, researchers at MIT have developed a method with the potential to revolutionize underwater communication. "What we've shown is that it's actually feasible to communicate from underwater to the air," says Fadel Adib, a professor at MJT's Media Lab, who led the research.

    The MIT researchers designed a system that uses an underwater machine to send sonar signals to the surface, making vibrations (震动)corresponding to the ls and Os of the data. A surface receiver then reads and decodes these tiny vibrations. The researchers call the system TARF. It has any number of potential real-world uses, Adib says. It could be used to find downed planes underwater by reading signals from sonar devices in a plane's black box and it could allow submarines to communicate with the surface.

    Right now the technology is low-resolution. The initial study was conducted in the MIT swimming pool at maximum depths of around 11 or 12 feet. The next steps for the researchers are to see if TARF is workable at much greater depths and under varying conditions—high waves, storms, schools of fish. They also want to see if they can make the technology work in the other direction— air to water.

    If the technology proves successful in real-world conditions, expect "texting while diving" to be the latest underwater fashion.

(1)、What does the author mainly talk about in Paragraph 1?
A、The future of video chat underwater and in air. B、The frustrations of developing underwater devices. C、The difficulty of communication from water to air. D、The current situation of communicating with a submarine.
(2)、What does the underlined word "feasible" mean?
A、Achievable. B、Convenient. C、Changeable. D、Alternative.
(3)、What do we know about TARF?
A、It is widely used to find downed planes. B、It can work well at great depths underwater. C、It is an underwater machine that sends signals. D、It can send, receive and read signals from underwater.
(4)、What is the best title for the text?
A、The Real-world Uses of Sonar Technology B、Full Water-to-air Communication Closer to Reality C、A Breakthrough in the Application of Video Chat D、TARF Becoming a New Means of Communication
举一反三
阅读理解

    We took a rare family road trip to the Adirondacks in late August,and it was as refreshing and exhausting as family vacations tend to be.Toward the end of our long drive home, even the kids were leaning forward in their seats urging my lead foot on.At that point in a road trip,even sixty-five miles per hour feels slow. We have become numb to our speed and numb to the road signs flashing by.

    My family lives on the edge of Lancaster County. Only thirty miles from home,I hit the brakes,and we began to roll,slowly,behind a horse-drawn carriage. We began to open our eyes again.We saw familiar green hills and the farm with the best watermelons. I rolled down the windows, and we breathed again.Just-cut hay and a barn full of dairy cattle.

    At five miles per hour,you remember what you forget at sixty-five.You are thinking about a place,even when you are moving from place to place.

    I am a placemaker. A homemaker, too. I am a mother of a young kid at home,and also a writer and a gardener.But,for me,those roles are wrapped up with the one big thing I want to do with the rest of my life:I want to cultivate a place and share it with others.

    The place I make with my family is a red-brick farmhouse built in l880. It has quite a few nineteenth-century bedrooms and a few acres of land,and we love nothing more than to fill them with neighbors and friends. We grow vegetables and flowers,keep a baker's dozen of egg—laying chickens,and,since we moved in three years ago,we have planted  many,many trees.

    Living with my life's purpose does not allow for much travel. I need to be here,feeding the chickens and watering the tomatoes. Any extra in the budget,and we spend it on trees.

    But I learned something at the end of our family road trip.Travel can help me in the task of caring for my own place.When I slow down and pay attention to the road between here and there,travel tells me the connections between my place and all the other places.

阅读理解

    Four years ago, we asked ourselves: what if we could create a shopping experience with no waiting in lines and no checkout? Or could we create a physical store where customers could simply take what they want and go? Our answer to those questions is Amazon Go, where you could experience the idea of "just walk out shopping".

    Amazon Go is a new kind of store with no checkout required. We created the world's most advanced shopping technology, so you never have to wait in line. With our "just walk out shopping" experience, simply use the Amazon Go app to enter the store, take the products you want, and go! No lines, no checkout.

    Our checkout-free shopping experience is made possible by the same types of technologies used in self-driving cars: computer vision, sensor fusion, and deep learning. Our “ just walk out technology ” automatically detects when products are taken from or returned to the shelves and keeps track of them in your virtual cart. When you have done shopping, you can just leave the store. Shortly after, we'll charge your Amazon account and send you a receipt.

    We offer delicious ready-to-eat breakfast, lunch, dinner, and snack options made fresh every day by our on-site chefs and favorite local kitchens and bakeries. Our selection of food stuff ranges from bread and milk to cheeses and locally made chocolates. You'll find well-known brands we love, plus special finds we're excited to introduce to customers. For a quick home-cooked dinner, pick up one of our chef-designed Amazon Meal Kits, and you can make a meal for two in about 30 minutes.

    Our 1,800-square-foot shopping space is conveniently compact, so busy customers can get in and out fast. It is located at 2131, 7th Ave, Seattle, WA, on the corner of 7th Avenue and Blanchard Street. All you need is an Amazon account, a supported smart phone, and the free Amazon Go app.

    Amazon Go is currently only open to Amazon employees in our testing program, and will be open to the public soon.

阅读理解

    Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.

    A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason is that crossing one leg over the other increases resistance, making it even harder for the blood to circulate and increase your blood pressure. Thus, you shouldn't have your legs crossed for more than 15 minutes, and it's important that you get up and walk around at least once every hour.

    Crossing your legs can also lead to neck and back pain. Ideally, it's best for our bodies to sit with our feet planted flat on the floor. When you sit with your legs crossed your hips are in a twisted position, which can cause pressure on your lower and middle back and neck.

    You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful. This is because when one leg sits on top of the other, it causes pressure on the veins and nerves in your legs and feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.

    So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.

阅读理解

     Here are opportunities for international student volunteers. You can apply your academic training to overall development programs in service. Group service options are explained here.

    Elder assistance

    Assist at the elder care center with activities such as playing cards and swapping stories. And you can join the elders on day-trips to the local museums, parks and grocery stores. Or, help prepare, serve and deliver meals at the assisted living center on the reservation.

Blackfeet Reservation Montana September 15—September 21

    Early Childhood Education

    Inspire children 1 to 5 years old through doing arts and crafts, reading storybooks, playing with toys, teaching hand washing with soap and water, and more. As a volunteer in the Cook Islands, you make contributions to the future through the youngest of citizens.

Rarotonga Cook Islands August 17—August 24

    Health Care

    Health care volunteers are needed at the clinic, serving all of the 1,300 children of the community. To help specialists, volunteers can be engaged to help sort medicines, make cotton balls and take children's temperature, etc. Health Care volunteers do not need any special permit or license.

Lima September 3—September 24

    Teach English

    Started in 1996, the program is to teach English in China and build a bridge of friendship and respect. Here you teach English lessons to secondary or university students with all levels of language abilities. After school, you can join your students in a number of cultural activities to extend the day's English lessons.

Xi'an August 22—August 28

 阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。

We all know someone who holds court wherever they find themselves with amusing stories. For the rest of us, conversation can be trickier. Our editor asked Catherine Blyth, the author of The Art of Conversation for her tips on how to shine — and not get cancelled — at your next small-talk.

Consider what you want from a conversation

{#blank#}1{#/blank#}. In fact, a conversation is usually a way to get something we want, whether that's to making a friend, or to asking someone on a date. Knowing what you want will keep things flowing. "At least, what you can get from a conversation is an interesting adventure with another mind. {#blank#}2{#/blank#}." says Blyth.

Guide the other person to help you

"There's nothing more flattering (受宠若惊) than feeling like that you've helped someone," Blyth says. She suggests finding a way to make the other person useful to you. "{#blank#}3{#/blank#}, that allows you to reveal a bit of yourself while inviting them to help, which is a great way to get conversation started."

Listen attentively and purposefully

Are you listening to understand, or listening to respond? That's a perfect question a would-be conversationalist should ask themselves. "A good listener indicates what interests them. {#blank#}4{#/blank#}. If I'm conversing with someone who makes it all about themselves, I'll gently point that I'm not interested and shift us towards other topics." says Blyth.

Keep your phone out of sight and out of mind

"If you're chatting with someone with your phone next to you, what you're saying is ‘you're only as important as my next notification'," says Blyth. "Whatever you do on a screen isn't a conversation. Problems arises from comparing real conversation to text messaging. {#blank#}5{#/blank#}. We need to give each other some grace."

A. Seeing the world through the eyes of others is a reward itself

B. People feel bad about conversation because they think it's a performance

C. Your responses should show which topics are interesting and which aren't

D. The best mindset you bring to small-talk is the idea that it's a treasure hunt

E. A direct praise is good, but if it's something like ‘I love that coat, where did you buy it?'

F. In a real conversation, you can't look things up, think about how to phrase your thoughts

G. You have to constantly be listening with your ears, your mind, and be conscious of doing so

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