目录 Unit 1 Job Hunting Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: A Report on Numbers Ⅱ. Speaking Out: Help Wanted IV. Further Study: Im Perfect for This Job Ⅴ. Internet-based CET Testing: Shipwreck Unit 2 Successful Interview Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: Prepare Properly Ⅱ. Speaking Out: Practice Interview IV. Further Study: Can You Tell Me about Your Last Job? Ⅴ. Internet-based CET Testing: Shoes-cruel Unit 3 Colleagues Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: Common Ground Ⅱ. Speaking Out: IT Courses Ⅳ. Further Study: Here Comes the Bride Ⅴ. Internet-based CET Testing: Skating Unit 4 Around the Office Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: A Successful Secretary Ⅱ. Speaking Out: Wall Street IV. Further Study: Fielding a Phone Call Ⅴ. Internet-based CET Testing: Relationship Unit 5 Friends Are Forever Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: Friends Are a Gift That Lasts a Lifetime Ⅱ. Speaking Out: How Was Your Date? IV. Further Study: The Gift of Giving Ⅴ. Internet-based CET Testing: Tennis Unit 6 There Was an Accident! Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: When Tragedy Strikes Ⅱ. Speaking Out: Close Call IV. Further Study: Robbery in the Daytime Ⅴ. Internet-based CET Testing: Trading Unit 7 Money, Money9 Money, Money! Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: Cash for a Cause Ⅱ. Speaking Out: Money for Science Ⅳ. Further Study: Scholarship Hopes Ⅴ. Internet-based CET Testing: Train Station Unit 8 Business Is Business Ⅰ. Pre-listening: Warm Up Ⅱ. Listening In: A Place for Business Ⅱ. Speaking Out: Complaining Ⅳ. Further Study: Checking In Ⅴ. Internet-based CET Testing: Shopping …… Unit 9 Complaints Unit 10 Resignation
内容摘要 Since early times, people have been fascinated with the idea oflife existing somewhere else besides earth. Until recently, scientists believed that life on other planets was just a hopeful dream. But now they are beginning to locate places where life could form. In 1997, they saw evidence of planets near other stars like the sun. But scientists now think that life could be even nearer in our own solar system. One planet scientists are studying very closely is Europa, a moon of Jupiter. Space probes have provided evidence that Europa has a large ocean under its surface. The probes have also made the scientists think that under its surface Europa has a rocky core giving off volcanic heat. Water and heat from volcanic activity are two basic conditions needed for life to form. A third is certain basic chemicals such as carbon, oxygen and nitrogen. Scientists believe there might be such chemicals lying at the bottom of Europa s ocean. They may have already created life or may be about to. You may wonder if light is also needed for life to form. Until recently, scientists thought that light was essential. But now, places have been found on earth that are in total blackness such as caves several miles beneath the ocean. And bacteria, primitive forms of life have been seen there. So the lack oflight in Europa s sub-surface ocean doesn t automatically rule out life forming. ……
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