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题目列表(包括答案和解析)

As long as you’ve paid ____ advance we won’t charge you ____ delivery.


  1. A.
    by: for
  2. B.
    in; with
  3. C.
    in; for
  4. D.
    by; with

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As I have a meeting at four, ten minutes _____ all that I can spare to talk with you.


  1. A.
    are
  2. B.
    was
  3. C.
    is
  4. D.
    were

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As_______the sports meeting,they met with an unexpected thing.


  1. A.
    preparing for
  2. B.
    preparing
  3. C.
    prepared for
  4. D.
    prepared

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As the Internet’s influence grows, the potential for danger also escalates (逐步上升). One of these dangers is from cyber-bullying. Cyber-bullying (网络欺凌) is repeatedly hurting someone else through the use of technology. It consists of sending or posting cruel messages, photos, or videos on the Internet or other electronic media with the intent of damaging the reputation of the target. Imagine being a 13-year-old girl discovering a cell phone picture of her changing clothes for gym class has been sent to all her classmates. Or imagine being an 11-year-old boy who is scared to go to school because an unknown bully sent him an instant message saying that he is so fat that he should kill himself. Cases such as these are happening every day, leading kids to be depressed and unable to concentrate.
Worse yet, parents are oblivious (忽视的) to what is happening. Only 15 percent of parents even know what cyber-bullying is. And anyone who thinks that their child is not a victim or a bully is probably wrong. 90 percent of middle school students have had their feelings hurt online and 75 percent have admitted to visiting a website attacking another student.
Unlike traditional schoolyard bullying, where a bully has a name and a face, cyber-bullying gets much of its power from anonymity (匿名). A cyber bully might design a website posting cruel remarks about a classmate and never tell anyone that he or she was the creator. The cyber-bullying also gets its power from the scope (范围) of its audience. Within seconds, a cyber bully can send an e-mail to everyone he or she knows, inviting them to take part in an online poll (民意测验) of who is the ugliest kid in their class. Victims can be picked on day and night from any place.
The good news is that you can help stop cyber-bullying. By making parents and educators aware of what is going on and encouraging them to take quick and strong action when cyber-bullying cases happen, you can help make technology constructive, not destructive, for young people.

  1. 1.

    What can we learn from the second paragraph?

    1. A.
      Not many students have known of cyber-bullying.
    2. B.
      Parents may not know their child is a victim of cyber-bullying.
    3. C.
      Parents know a lot of cyber-bullying.
    4. D.
      Most of the students have not been hurt by cyber-bullying.
  2. 2.

    What does the author think of the cyber-bullying?

    1. A.
      It is not as harmful as people think.
    2. B.
      It is too complex a problem to settle.
    3. C.
      It will not affect the relationship between classmates.
    4. D.
      It can be stopped through our efforts.
  3. 3.

    What will probably be discussed in the following passage?

    1. A.
      How to prevent cyber-bullying.
    2. B.
      What parents and educators think of cyber-bullying.
    3. C.
      How to make parents aware of cyber-bullying.
    4. D.
      How to make good use of technology.

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With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species(物种). That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”

  1. 1.

    The aim of “Noah’s Ark” project is to _______.

    1. A.
      make efforts to clone the endangered pandas
    2. B.
      save endangered animals from dying out
    3. C.
      collect DNA of endangered animals to study
    4. D.
      transfer the nuclear of one animal to another
  2. 2.

    According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.

    1. A.
      available panda eggs
    2. B.
      host animals
    3. C.
      qualified researchers
    4. D.
      enough money
  3. 3.

    The best title for the passage may be _______.

    1. A.
      China’s Success in Pandas Cloning
    2. B.
      The First Cloned Panda in the World
    3. C.
      Exploring the Possibility to Clone Pandas
    4. D.
      China —the Native Place of Pandas Forever
  4. 4.

    From the passage we know that _______.

    1. A.
      Kraemer and his team have succeeded in cloning a dog
    2. B.
      scientists try to implant a panda’s egg into a rabbit
    3. C.
      Kraemer will work with Chinese scientists in clone researches
    4. D.
      about two thousand of species will probably die out in a century

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