试题

试题 试卷

logo

题型:阅读理解 题类:模拟题 难易度:普通

广西桂林市2019届高三英语4月综合能力检测(一模)试卷

阅读理解

    Studying the DNA of 300 mice has flagged up genes which have been linked to hereditary (遗传的) sight loss for the first time. Researchers say because mice's genes are so similar to humans', their findings could lead to the treatment of more genetic diseases.

    Scientists at the University of California, Davis studied information from a data bank of mice's genetic material. They found 347 genes linked to eye problems, with just 86 of them having been studied in the past.

    Only around 50 to 75 percent of hereditary eye diseases in human can be explained with present science. The researchers believe these hundreds of new genes found in mice could be a key to explaining-and therefore being able to treat the other 25-50 percent.

    "This is extremely valuable for people with hereditary eye disease," said researcher Professor Ala Moshiri. "All researchers are going to start using these data. In the past, we knew the problem was there but we didn't know where to look. Now eye centers can call back patients and screen them for these new genes. We expected that more and more of these genetic diseases will be treatable." Also, the fact is that more than 60 percent of eye problems at birth are ones resulting from the baby's parents!

    Thanks to data from the International Mouse Phenotyping Consortium (IMPC), which is trying to work out what every single gene in a mouse is responsible for, with the aim of translating it to humans, scientists are moving closer to figuring out all genetic causes of blindness. To do this, scientists separate a single gene from other ones at a time and then observe what effect it has on the mouse for a long time. This has so far been done more than 7,000 times and has achieved great success. Researchers are now working alongside eye care centers in Texas and Iowa in order to compare the mice's genes to those of patients.

(1)、How many hereditary-sight-loss-related genes were newly found?
A、86. B、261. C、300. D、347.
(2)、Why is the percentage of genetic eye problems mentioned in paragraph 3?
A、To show the significance of studying mice's genes. B、To prove mice's genes are similar to humans'. C、To warn the high risk level of suffering them. D、To explain how common they are among people.
(3)、What should scientists do first to unlock secrets of genetic blindness?
A、Compare humans' genes with mice's. B、Recognize each gene's role of humans. C、Set apart a gene of a mouse each time. D、Figure out each gene's function of a mouse.
(4)、What can be a suitable title for the text?
A、New Ways to Cure Sight Loss B、Genes Found Behind Eye Problems C、Genetic Diseases Discovered in Mice D、Humans Genes Causing Eye Diseases
举一反三
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。

Questions you should ask yourself when you fail

    The more new things we try the more failure we are likely to have.{#blank#}1{#/blank#}. Experiencing failure can be a learning experience and an opportunity for a fresh start. A good way to begin this process is by asking yourself some tough questions.

⑴What can I learn from this?

    Take responsibility for what went wrong. OK, so it was not all your fault—but some of it was. Successful people don't make excuses or blame others. {#blank#}2{#/blank#} So you should look at the experience objectively(客观地).

⑵Do I need to acquire or improve some skills?

    Did the problem reveal some lack of skill on your part? How could you learn or improve those skills? Perhaps there are books or courses or people you could turn to. {#blank#}3{#/blank#}

⑶Who can I learn from?

    Is there someone to whom you can turn for advice? Did a boss, colleague or friend see what happened? {#blank#}4{#/blank#}. Most people do not ask for help because they believe it to be a sign of weakness rather than strength. It's not. It shows that you are ready to learn and change.

⑷What will I do next?

    Now draw up an action plan. Will you try something similar or something different? Revisit your goals. Failure doesn't mean you have to give up; maybe you just need to change it in another way. {#blank#}5{#/blank#}

A. You can now reset your sights on your destination and plan a new course.

B. Make them step stones to future success.

C. They take responsibility for the failure.

D. In fact the only way to avoid failure is to do nothing new.

E. The important thing is how we deal with failure.

F. Make a self-development plan to acquire the skills and experience you need.

G. If they are constructive and supportive then ask them for some feedback (反馈) and guidance.

根据短文理解,选择正确答案。

    The average(平均的)American child spends three to five hours a day watching TV. In 1961, the average child began to watch television at age three; however, today it is nine months. Yet, most parents think that television has bad influence on their children. For example, in the early 1970s, my parents believed that my bad eyesight was the result of sitting too close to the screen, and they therefore made my stay at least six feet from it. Today, most people have no such worry, but many new ridiculous (荒谬的) sayings have appeared:

      *TV makes kids stupid. Many children watch more educational programs when they are pre-schoolers. When they grow up, they can read more books and have much better ideas to solve difficult problems than other children.

     *TV makes kids violent. The real story is not so simple. Hundreds of studies show that watching violence on TV makes children more aggressive (好斗的). But a study of over 5,000 children also finds that some positive programs make children kinder. The problem is that kids are increasingly watching shows with violence instead of those suitable for their age.

      *Sitting around watching TV makes kids overweight. An experiment finds that when children watch less television, they do lose extra weight; however, reducing their television time does not make them more active. The real problem lies in snacking (吃零食). A widespread habit for kids, and junk-food advertisements.

      *TV helps kids get to sleep. The opposite is true. The more television children watch, the more likely they are to have irregular sleep and nap (小睡) patterns. Allowing kids to watch television is part of the problem, not the solution.

阅读理解

    Every man wants his son to be somewhat of a clone, not in features but in footsteps. As he grows, you also age, and your ambitions become more unachievable. You begin to realize that your boy, in your footsteps, could probably achieve what you hoped for. But footsteps can be muddied and they can go off in different directions.

    My son Jody has hated school since day one in kindergarten. Science projects waited until the last moment. Book reports weren't written until the final threat.

    I've been a newspaperman all my adult life. My daughter is a university graduate working toward her master's degree in English. But Jody? When he entered the tenth grade, he became a “vo-tech(技校)” student. They're called “motorheads” by the rest of the student body.

    When a secretary in my office first called him “motorhead”, I was shocked. “Hey, he's a good kid,” I wanted to say. “And smart, really.”

    I learned later that motorheads are, indeed, different. They usually have dirty hands and wear dirty work clothes. And they don't often make school honor rolls(光荣榜).

    But being the parent of a motorhead is itself an experience in education. We, who work in clean shirts in offices, don't have the abilities that motorheads have. I began to learn this when I had my car crashed. The cost to repair it was estimated at $800. “Hey, I can fix it,” said Jody. I doubted it, but let him go ahead, for I had nothing to lose.

    My son, with other motorheads, fixed the car. They got parts(零件) from a junkyard, and ability from vo-tech classes. The cost was $25 instead of $800.

Since that first repair job, a broken air-conditioner, a non-functioning washer and a non-toasting toaster have been fixed. Neighbors and co-workers trust their car repairs to him.

    These kids are happiest when doing repairs. They joke and laugh and are living in their own relaxed world. And their minds are bright in spite of their dirty hands and clothes.

    I have learned a lot from my motorhead: publishers need printers, engineers need mechanics, and architects need builders. Most importantly, I have learned that fathers don't need clones in footsteps or anywhere else.

My son may never make the school honor roll, but he made mine.

阅读理解

    Many seniors feel pressured to go straight from high school to college, but Camden Olson, who graduated from the Latin School of Chicago in the US last year, didn't give in. She decided to spend a gap year-taking a year off before college-raising a guide dog for Guiding Eyes for the Blind in Maine. The non - profit provides trained guide dogs to blind and visually - impaired (视力障碍的) people. "This is something I've always wanted to do." Olson said.

    It is becoming more and more popular among American teenagers to have a gap year. Some students use the year off to figure out what they want to do: travel the world or save money for college.

    Olson is using her time to follow a passion she's had since 7th grade. For years, she kept an eye on guide dog services until she came across the opportunity at Guiding Eyes. With support from her friends, family and teachers, Olson went for it. Olson's volunteer work centers around Derby, a one-year-old black dog.

    "My job is to raise him to be well-mannered and socialized," she said. "Guide dogs can't be distracted. They go everywhere with their visually-impaired owner. They give a blind person a lot of support, too."

    Of course, there's an end in sight for Derby and Olson's close bond. When Derby celebrates his own graduation, Olson will have to say goodbye to him.

    "No doubt there will be tears, but, if he passes, I will be so happy for him to become a working dog," she said.

    While some do not agree that gap years are a good choice, Olson said she's seen major success. In fact, she'll be attending Princeton University soon and is thinking about majoring in biology.

    "I think I'm already so much more mature than I was," she said. "So many kids come back from gap years a lot more focused and prepared."

返回首页

试题篮