It’s all about the speed at which temperatures are changing. In the past, temperatures moved up or down step by step. But in the 20th century, especially since 1976, temperatures have likely risen more quickly than during any century in the last 1000 years. Warming may bring improved harvests to northern countries such as Canada and Russi

试卷相关题目

• 1The main idea of this passage is          .

  A.what would life be like without memory

  B.memory is of great importance to life

  C.how a person’s memory is different from an animal’s or a computer’s

  D.what is contained in memory

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• 2The whole passage implies that          .

  A.only human beings have problem-solving intelligence

  B.a person’s memory is different from a computer’s in every aspect

  C.animals are able to solve only very simple problems

  D.animals solve problems by instinct(直觉) rather than intelligence

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• 3From the passage we know that        .

  A.the computer’s memory has a little bigger ability than a teenager

  B.the computer’s memory ability is much smaller than an adult human being’s

  C.the computer’s memory ability is much smaller even than a teenager’s

  D.the computer’s memory ability is as smaller as a teenager’s

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• 4According to the passage, memory is considered to be          .

  A.the basis for decision making and problem solving

  B.an ability to store experiences for future use

  C.an intelligence typically possessed by human beings

  D.the data mainly consisting of words and combinations of words

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• 5What may eventually settle the “last mile” problem、

  A.The broadband connection’s getting faster.

  B.More and more Internet users.

  C.More and more Internet connections.

  D.The rapid progress in cell phone technology.

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