Unit 3 Computers第一学时 Reading and ComprehensionWorld Wide WebIf you watch TV，visit the mall，or do anything at all，you'll have chances to see the three famous letters，WWW！So what does it all mean? What does it stand for?Well，in general，WWW stands for“World Wide Web”．Most people confuse(使混乱 ； 使 困 惑 ) the Internet with the World Wide Web.However, there is a difference.The Internet is made up of thousands of computers that are connected(连接；联合；关联)worldwide.WWW，or World Wide Web，is what your computer uses to check out the Internet.For example，your computer uses browsers(电脑浏览器)，such as Internet Explorer or Netscape to let you see and hear all the cool pictures，information，music and sounds on the Internet.►Task 1仔细阅读课文“Who Am I？”根据课文内容选出最佳答案。 1．When did the computer come into being?A．1640. B．1642.C．1822. D．1936.答案：B2．Who really invented the computer?A．Charles Babbage. B．Bill Gates.C．Alan Turing. D．Thomas Edison.答案：C3. Which of the following statements is TRUE?A．Charles Babbage built an analytical machine in 1642.B．Alan Turing wrote a book about how the computer could be made to work as a “universal machine” to solve any difficult mathematical problem in 1936.C．The computers were first connected by a network in the late 1960s.D ． Since the 1960s the computer has been used to help with medical operations.答案：B4．What can we infer from the text?A．The computer can take the place of humans.B．The smaller a computer is，the faster it calculates.C．Computers can solve all the problems of human beings.D．People can benefit more from computers in the future.答案：D5. What is the main idea of the text?A．The advantages of the computer.B．The latest development...
