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题型:阅读选择 题类:模拟题 难易度:普通

重庆九龙坡区2019届九年级下学期英语十校联考毕业暨升学模拟考试试卷(含听力音频)

阅读理解

    Scientists in Britain and the United States have made a new kind of enzyme(酵素) that eats plastics(塑料). With its help, plastics can be turned into smaller parts and go away quickly.

    Scientists believe that, in the future, it could solve the problem of plastic pollution.

    The enzyme is able to break down PET, a form of plastic. PET was first made in the 1940s and is now widely used to make plastic bottles. It can remain in the environment for many years and pollute large areas of land and water. So it has always been a headache to deal with the waste from PET and other plastics.

    The researchers made the discovery(发 现) while examining the structure of a natural enzyme in Japan. They found that the natural enzyme was helping to break down PET plastics. So, they

decided to make small changes to the enzyme by adding some amino acids(氨基酸). It made the natural enzyme's plastic-eating abilities work faster and better.

    John McGeehan, one of the lead researchers, said, "We've made an improved enzyme. It's better than the naturl one. And we are trying to make more improvements to it." He went on."

    The enzyme is not harmful to humans or animals, and it is friendly to the environment. So we are considering putting it into wider use."

    The team is now trying to make the enzyme break down PET in large quantities(大量的). "We'll see that the plastic pollution may be stopped with this technology. However, there is still a long way to go," John McGeehan added.

(1)、According to the scientists, the enzyme may solve the problem of        pollution.
A、air B、water C、light D、plastic
(2)、The underlined phrase "break down" in the passage probably means "      " in Chinese.
A、实验 B、生产 C、发明 D、分解
(3)、Researchers discovered that a natural enzyme helped eat plastics       .
A、in B、in the US C、in Japan D、in China
(4)、Which of the following is TRUE according to the passage?
A、The scientists are still trying to improve the enzyme. B、The enzyme will pollute large areas of land and water. C、The natural enzyme woks better than the improved one. D、The natural enzyme is harmful to humans and animals.
举一反三
阅读理解

    Have you learned something about robots? There are all kinds of robots. They are in different shapes. They can do lots of work.

    Robot teachers, who are working in elementary schools now, have been very popular with pupils during a project in some South Korean school, a government report said on Thursday.

    The elementary school children get on well with the robot teachers. They like the robotic teachers more than the ordinary ones because they never get angry and always kind to the students. The Ministry of Knowledge said.

    English teaching robots were sent to three provincial schools for eight weeks starting in late December. There they teach students as teachers. More and more students like studying and the other robot teachers were also sent out. They can teach math, science and art.

    The researchers found that the English-teaching robots helped raise interest in the language and helped the students feel more confident.

    “Tele-presence” robots are controlled by an English and are equipped with a microphone and video camera. Many people think we can use these robot teachers in the village far away from the cities so that the children in these areas can also get better education.

    The government has expressed great interest in robots to give rural school children more learning chances. I think in the future we can see more and more robot teachers working with the students. But I think the robot teachers can't replace the real teachers. What's your opinion?

阅读理解

    It took 13 years of international effort to map the human biological blueprint of all the genes (基因) that make us different people. The first rough draft (草图) made in 2000. The last of our 23 chromosomes (染色体) was clearly described in 2006. Ever since then, the age of personal genetic testing has been upon us. Since that time, a growing number of private companies have come on the market mostly through the Internet, offering to scan your personal DNA and compare it to some disease markets of the blueprint, called DTC genetic tests.

    But over the last five years the medical world has been discussing excitedly about whether these DTC tests are helpful or harmful, scientifically believable or completely useless. One of the usual criticisms (批评) is that the science is so new that no one really knows yet how to explain the information.

    "At present they largely remain in the period of research studies," notes Dr. Greg Ferro, special advisor to the director of genomic medicine at the US National Human Genome Research Institute. Ferro says there are two reasons." The first is that when they offer a test, are they really checking what they should check? And then the next is that even if it is believable, does what the test is checking really mean anything to your health?"

    Other worries include the privacy of the results and how your personal genetic information might be used by insurance (保险) companies to refuse your insurance or your boss to dismiss you. Or you could learn information with a huge social or personal impact (冲击), such as finding out that genetically you cannot possibly be the father of your child. It can also give you risks that may break your life, such as whether you are at high risk of cancer, Parkinson or other terrible diseases.

    Criticisms over the tests are such that some countries, such as Germany, have banned them. In 2011, some scientists advised the US government that most tests should be done under the guidance of medical professionals (专家). The UK government also expressed its worries about DTC genetic tests and in August 2010 made a set of rules to guide the development of genetic tests.

    In 2011, three medical researchers published a review article in the International Journal of Clinical Practice, saying that such tests offered more risks than benefits. The most important reason is that the tests might create worries or unreal results or drive unnecessary medical treatments. They also noted some of the genetic information the tests are based on at present is far from being perfect.

 阅读下面短文, 并从方框里的六个句子中选择五个还原到原文, 使原文的意思连贯、完整。

A. Share a bit of yourself!

B. Show strong personal qualities.

C. But for many kids, it doesn't come easily.

D. But it is important to get people's names right.

E. Ask about school, sport, music, and other hobbies!

F. Now over 20 schools give strong friendship classes.

Do you like to make new friends at school? Making friends is an important skill for us to learn. {#blank#}1{#/blank#}

To teach kids friend- making skills, people in Australia started a project called URStrong. It gives kids classes on friendships to help them make friends. {#blank#}2{#/blank#} Here are some ways of making a new friend from the friendship classes.

Introduce yourself first. Look the person in the eye, smile and say," Hi! My name is ... What's your name?" After he or she answers, say something like," It's really nice to meet you." It is really as simple as that! {#blank#}3{#/blank#} If you get them wrong, they will feel sad!

Ask questions. {#blank#}4{#/blank#} But remember, you have to be a good listener before you can ask good questions.

Don't be shy. {#blank#}5{#/blank#} Then your new friends can get to know you! Soon enough, you will be the best of friends!

Enjoy something together. Try to find an activity you both like and ask the other person to play with you.

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