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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

    Experience the newly opened Grand Canyon West Skywalk in Colorado.Departing from Grand Canyon's South Rim by Airplane to Grand Canyon's West Rim,you will land and take a ground tour to the Skywalk! Walk on air for 70 feet over the edge of Grand Canyon West.

    This Skywalk has been open since March 28,2007.Daily visitor-ship to the Skywalk has been over 4000 people. Please be patient to enjoy your moment on the Skywalk.

    After you have experienced the one and only Grand Canyon Skywalk Glass Bridge from where you can enjoy the scenery better,you will return to the Grand Canyon West airport and take your Airplane for a flight back to the South Rim of the Canyon.This is a tour never to be forgotten as you will have walked on air over the Grand Canyon.

Tour Itinerary

Tour Time

5.7 Hours

The Grand Canyon Skywalk

Flight from

Grand

Canyon South

Rim to Grand Canyon West

1 Hour

Experience a bird's-eye view of the Grand Canyon as you make your way to Grand Canyon West.

Light Lunch at Guano Point at Grand Canyon

West

2 Hour

You'll be taken by bus to Guano Point with breathtaking views of the western part of the Grand Canyon where the Colorado River makes its way into Lake Mood.Every table for lunch has a view.

Walk on the

World-famous Skywalk

1.5 Hour

Finally you'll board your bus to Eagle Point,home of the Grand Canyon Skywalk.Now it is time for you to walk on air for 70 feet over the Grand Canyon.

Flight Back to

Grand Canyon South Rim

1.2 Hour

After time on the Skywalk,you'll return to the Grand Canyon West Airport and return to Grand Canyon South Rim in time for dinner and sunset.

根据短文理解,选择正确答案。

    Most kids go to school during the day and come home to their families or caregivers at night.Sometimes kids can't go home every night so they board or live at school during term-time.

    Whatever the reason for going to boarding school, living with a group of people is very different from living with your family.You have to learn to get on with others, be responsible for looking after your own stuff and follow the rules that are there to make everyone's life pleasant and safe.

The following are some tips from boarders.

    "Remember that the other new students are probably as shy as you are.If you don't talk first and try to make friends, it may not happen."

    "Don't hold things back inside you.The more you talk, the easier it gets.You can talk to older boarders as well as adults.They understand what you are feeling—they've been through it too."

    "Be respectful of others' space and give them privacy.Having people around all the time means you don't get much time to yourself."

    "Join in sports and other afterschool activities.You'll meet lots of new people who are interested in the same things as you.And keeping busy will help you get over feeling homesick."

    "If you are a weekly boarder or go home most weekends it can be harder to make friends, so see if you can organize to stay in for a weekend."

    "Make friends with non-boarders too.It's good to visit someone's home sometimes."

    "Boarding has its ups and downs, you get homesick and sometimes the food is not that great but most of the time it is like being in one big family.You make friends that you know you'll keep for the rest of your life."

阅读理解
    The Marches were a happy family. Poverty, hard work, and even the fact that Father March was away with the Union armies could not down the spirits of Meg, Jo, Beth, Amy, and Marmee, as the March girls called their mother.
    The March sisters tried to be good but had their share of faults. Pretty Meg was often displeased with the schoolchildren she taught; boyish Jo was easy to become angry; golden-haired schoolgirl Amy liked to show up; but Beth, who kept the house, was loving and gentle always.
    The happy days passed and darkness came when a telegram arrived for Mrs. March. “Your husband is very ill,” it said, “come at once.” The girls tried to be brave when their mother left for the front. They waited and prayed. Little Beth got scarlet fever(猩红热)when she was taking care of a sick neighbor. She became very ill but began to recover by the time Marmee was back. When Father came home from the front and at that joyful Christmas dinner they were once more all together.
    Three years later the March girls had grown into young womanhood. Meg became Mrs. Brooke, and after a few family troubles got used to her new state happily. Jo had found pleasure in her literary efforts. Amy had grown into a young lady with a talent for design and an even greater one for society. But Beth had never fully regained her health, and her family watched her with love and anxiety.
    Amy was asked to go and stay in Europe with a relative of the Marches'. Jo went to New York and became successful in her writing and had the satisfaction of seeing her work published there. But at home the bitterest blow was yet to fall. Beth had known for some time that she couldn't live much longer to be with her family, and in the springtime she died.
    News came from Europe that Amy and Laurie, the grandson of a wealthy neighbor, had planned to be married soon. Now Jo became ever more successful in her writing and got married to Professor Bhaer, and soon afterwards founded a school for boys.
    And so the little women had grown up and lived happily with their children, enjoying the harvest of love and goodness that they had devoted all their lives to.
阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

    You have probably heard of the Mozart effect. It's the idea that if children or even babies listen to music composed by Mozart, they will become more intelligent. A quick Internet search reveals plenty of products to assist you in the task. Whatever your age is there are CDs and books to help you taste the power of Mozart's music, but when it comes to scientific evidence that it can make you more clever, the picture is more mixed.

    The phrase "the Mozart effect" was made up in 1991, but it was a study described two years later in the journal Nature that sparked real media and public interest about the idea that listening to classical music somehow improves the brain. It is one of those ideas that sound reasonable. Mozart was undoubtedly a genius himself; his music is complex and there is a hope that if we listen to enough of it, we'll become more intelligent.

    The idea took off, with thousands of parents playing Mozart to their children, and in 1998 Zell Miller, the Governor of the state of Georgia in the US, even asked for money to be set aside in the state budget so that every newborn baby could be sent a CD of classical music. It was not just babies and children who were exposed to Mozart's music on purpose, even an Italian farmer proudly explained that the cows were played Mozart three times a day to help them produce better milk.

    I'll leave the debate on the impact on milk yield to farmers, but what about the evidence that listening to Mozart makes people more intelligent? More research was carried out but an analysis of sixteen different studies confirmed that listening to music does lead to a temporary improvement in the ability to handle shapes mentally, but the benefits are short-lived and it doesn't make us more intelligent.

阅读理解

    Apple and Microsoft each launched new products. One company astonished everyone. The other made people sleepy. Can you guess which was which? You probably guessed wrong. Because Apple, famous for its creative products, was the tech giant whose new product caused a collective shrug. While Microsoft, which stole a move out of the Apple Playbook, won cheers from high-end, creative-class consumers like business analysts, media designers and music producers.

    As Hayley Tsukayama remarked at The Washington Post, the Surface Studio, one of Microsoft's new products, is really just a super-sized version of the Surface Books product that Microsoft has been selling for years. But if you've ever watched science fiction movies like Minority Report-- where Tom Cruise seems to operate pictures and data hanging on mid-air by touching them, spreading his fingers to increase on details, and sending files and information sliding from one folder to another with a click of the finger, you can see how Microsoft is trying to show the same experience.

    Meanwhile, apple's new products were almost like some fine promotions for its Apple TV. They boast that the new Macbook Pro has a smaller size and more functions, and a new touch screen bar on laptop keyboards where function keys used to be.

    So what's going on? In many ways, Apple is focusing on attracting the average consumers who have been attracted by Microsoft. And Microsoft is focusing on targeting the high-end professionals Apple has historically been associated with. You can even see this is the companies' ad campaigns: Microsoft's ads stress imagination and creativity, while Apple's commercial chief performance and convenience of its Macbooks.

    So Apple is trying to control the world of devices and laptops from the top down, starting with the high-end market and moving on to appeal to a broader base of consumers. Microsoft, having already strengthened itself within the bigger low-end market, is now attempting the opposite with a bottom-up strategy. Will they succeed? Time will tell...

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