试题

试题 试卷

logo

题型:阅读理解 题类:模拟题 难易度:普通

黑龙江省哈尔滨市哈三中2019届高三英语第三次模拟考试试卷

阅读理解

    Hacking isn't just for computers and smartphones, According to a study published last week in the journal Science, scientists have found a way to hack a plant's genes in order to make it use sunlight more quickly. Someday, the results could increase the amount of food produced around the world.

    Photosynthesis(光合作用)is the word used to describe how plants use sunlight, water, and carbon dioxide to make their own food. Scientists who conducted the new study say this is a very slow process. Plants use less than 1 percent of the energy available to therm. But by hacking a plant's genes, the scientists were able to increase the amount of leaf growth on plants between 14 and 20 percent.

    "Specifically, scientists hacked the plant's protective system. Normally, this system is activated when a plant gets too much sunlight, "said scientist Krishna Niyogi, co-author of the study. When the plant senses the light, it gets rid of extra energy and creates more leaves. When the plant is in shade, the protective system is turned off, but the process is slow.

    Stephen Long is the lead author of the study. He compared a plant's protective system to light-adjusting glasses. When a person wears the glasses outside during the day, the lenses(镜片)darken and lighten depending on how sunny it is. Plants do the same thing, he said. But in plants the adjustment can take anywhere from 10 minutes to an hour. This makes it hard for plants to get the right amount of sunlight needed to create food.

    The new study sped up the process. By changing the plant's genes, the protective system turned on and off more quickly than normal. As a result, leaf growth on the plants scientists used in the study increased. Leaf growth in two plants increased by 20 percent, while leaf growth on a third plant increased by 14 percent. Scientists conducted the study on tobacco plants. But they think the genetic changes will produce the same results in corn and rice.

(1)、What will happen to the plants when scientists change plants' genes?
A、They will become weaker and weaker. B、They will grow fast to produce more food. C、They will have more beautiful flowers. D、They will depend less on sunlight.
(2)、Why does the author mention light-adjusting glasses?
A、To warn people of the hot and bright sun. B、To explain the principle of plants' protective system. C、To help leaves of the plants absorb sunlight. D、To serve the science experiment smoothly.
(3)、In the future, the genetic changes will be used to.
A、improve tobacco plants' quality B、increase tobacco plants' leaves and roots C、improve the flowers' living time D、increase the production of corn and rice
(4)、Which of the following can be the theme of this text?
A、Hacking plants for more production B、Leaf growing more quickly C、Double production of tobacco plants D、Photosynthesis and production
举一反三
阅读理解

    It is good to get in touch with your inner child from time to time,and obviously some people are willing to pay big money for the chance to do so in a proper environment.A Brooklyn-based adult preschool is charging customers between $333 and $999 for the chance to act like a kid again.

At Preschool Mastermind in New York adults get to participate in show—and—tell,arts—and—crafts such as finger paint,games like musical chairs and even take naps.The month-long course also has class picture day where the adults are expected to have a field trip and a parent day.30-year-old Michelle Joni Lapidos,the brain behind the adult preschool,studied childhood education and has always wanted to be a preschool teacher.She's always on the lookout for new ways to get people in touch with the freedom of childhood.A friend encouraged her to start the mastermind course instead.

    According to Candice,her blogger friend,Preschool Mastermind gives adults a chance to relearn and master the things that they failed to understand as children.“I realized all the significances of what we learn in preschool,”said founder Michelle Joni,“People come here and get in touch with their inner child.It's magical.We are bringing ourselves back to another place,another time with ourselves when we are more believing in ourselves,more confident and ready to take on the world.”

    “One person's here because they want to learn not to be so serious.”Michelle said.“Another's here to learn to be more confident.” She explained that most of the classes were planned.However,Joni added that while the planned activities were fun,it was often the spontaneous(自发的)moments that attracted students.“It's the things you don't plan for,the sharing between friends and learning from each other.''

阅读理解

    Last year I lived in Chile for half a year as an exchange student with the American Field Service. Compared to most visitors, I didn't travel much. I lived with a Chilean family and had the responsibilities of any Chilean teenager. I went to school every day, in uniform. I had good days and bad days and days that I didn't understand.

    Chuquicamata, my host community, is a mining camp in the Atacama Desert. There is no disco, no shopping center, no museum or beach. Driveways must be watered daily to keep the dust down.

    When I arrived here, I was scared. It was so different from the urban middle-class America I was accustomed to. There were lost dogs on the streets, and a constant cloud of brick-colored dust came from the mine. There was no downtown, few smoothly paved(用砖石铺的) streets, and little to do for amusement. The people worked extremely hard. Rain was a rare phenomenon; earthquakes and windstorms were frequent.

    I had studied Spanish for two and a half years and was always one of the best students in my class. But in my first week in Chile I was only able to communicate and needed one person to whom I could explain my shock. I couldn't speak the thoughts in my head—and there were so many.

    Most exchange students experience this like me. Culture shock presents itself in everything from increased aggression towards the people to lack of appetite. I was required to overcome all difficulties. Being an exchange student is not easy.

    As time passed, everything changed. I began to forget words in English and to dream in Spanish and love Chilean food. I got used to not depending on expensive things for fun. Fun in Chuquicamata was being with people. And I took math, physics, chemistry, biology, Spanish, art, and philosophy.

    But the sacrifices were nothing compared to the gain. I learned how to accept as well as to succeed in another culture. I now know the world is my community and have a much deeper understanding of both myself and others.

阅读理解

    Standing in line for the latest iPhone at the Apple store, queuing for tickets to the match or even just waiting at the post office might just have got a lot easier.

Japanese car-maker Nissan announces that it has just the thing to relieve the painful legs of tired queuers.

    The new system of self-driving chairs is designed to detect when someone at the front of the queue is called, and automatically move everyone else one step forward in line.

    The new invention is shown in a company video, which shows a busy restaurant with customers waiting outside. In the video, diners are sitting in a row of chairs, but will not have to stand when the next hungry diner is called to a table. Instead, the chairs, equipped with autonomous technology that detects the seat ahead, move along a path toward the front of the line. When the person at the front of the queue is called, the empty chair at the front can sense it is empty and so moves out of line. Cameras on the remaining chairs then sense the movement and follow automatically.

    "The system, which is similar to the kind used in Nissan's autonomous vehicle technology, will be tested at select restaurants in Japan this year," Nissan said. "It appeals to anyone who has queued for hours outside a crowded restaurant: it rids the boredom and physical pain of standing in line," Nissan added.

    Although Tokyo has some 160,000 restaurants, long queues are not uncommon. Chosen restaurants that meet the criteria will be able to show the chairs outside their restaurants next year. Nissan also released a short video showing the chairs being used in an art gallery, moving slowly in front of the various paintings to let viewers appreciate the art without the need to stand up.

阅读理解

Growing up on a tobacco farm, Emma Avery was used to hard times. When she was seven, her family's farmhouse burned to the ground. Her father made a temporary shelter, where eight people had to sleep in two beds. As soon as Emma and her four brothers and two sisters were big enough, they were out in the fields.

Emma would find her comfort in school, even as a C student, thanks to one teacher. When she moved on to middle school, Emma was alarmingly far behind her classmates. She kept her head down, trying not to be noticed, struggling to catch up, and feeling like an outsider.

Then one day, when Emma was 16, a teacher named Mr. Potts changed everything. Looking his students in the eye, Mr. Potts said, "Being a C student does not mean you do not have a valuable contribution to make. Some of you have to work in the fields in the evening and do not have time to study. But if you do your best, you have a gift to give."

The teacher's words made Emma believe she could do well, and she worked harder. In the end she won a scholarship to St. Paul's College, graduated with a degree in elementary education in 1967, and got a job in the public-school system. Then, at George Washington University, she received a master's in education in 1970, and afterwards in the same year she married Ron Smothers.

Over the next six years, Emma taught in public schools in Miami. In 1976, after saving $10,000, she opened her first restaurant in Los Angeles. Eventually Emma stopped teaching, and her business expanded to six restaurants.

In gratitude for what she has been able to achieve, Emma donates a lot. She has no idea how much money she's given away. She says, "Those I want to help are the C students who just need help, direction and confidence."

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

A Few Tips for Self- Acceptance

We all want it. .. to accept and love ourselves. {#blank#}1{#/blank#} Where do you start? Here's a handful of ways that will set you in the right direction.

• Stop comparing yourself with others. Do not follow the people who make you feel not- good- enough. {#blank#}2{#/blank#} Are you hoping that eventually you will feel empowered because your life is better than theirs? Know that your life is your own; you are the only you in this word.

·{#blank#}3{#/blank#} We are often ashamed of our shortcomings, our mistakes and our failures. Remember, you are only human. You will make mistakes, time and time again. Rather than getting caught up in how you could have done better, why not offer yourself a compassionate(有同情心) response?" That didn't go as planned. But, I tried my best."

●Recognize all of your strengths. Write them down in a journal. Begin to train your brain to look at strength before weakness. List all of your accomplishments and achievements. {#blank#}4{#/blank#} Nothing is too small to celebrate.

●Now that you' ve listed your strengths list your imperfections. Turn the page in your journal. Put into words why you feel unworthy, and why you don't feel good enough. Now, read these words back to yourself. {#blank#}5{#/blank#} Turn to a page in your journal to your list of strengths and achievements. See how awesome you are?

A. But at times it seems too difficult and too far out of reach.

B. Feeling upset again?

C. You have a job, earned your degree, and you got out of bed today.

D. Forgive yourself for mistakes that you have made.

E. Why do you follow them?

F. Set an intention for self- acceptance.

G. When does the comparison game start?

返回首页

试题篮