星火英语啊、答案.doc

星火英语啊、答案.docModel Test Five
Part I Writing (30 minutes)
Directions: For this part, you are allowed 30 minutes to write a short essay entitled My View on off-campus Room Renting. You should write at least 120 words fig lowing the outline given below:
很多大学生在校外租房住；
学生校外租房的主要原因；
校外租房的利弊.
My View on Off-campus Room Renting
Part II Reading Comprehension (Skimming and Scanning) (15 minutes)
Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1・
For questions 1 - 7, choose the best answer from the four choices marked A), B), C) and D).
For questions 8 -10, complete the sentences with the information given in the passage.
Change
As relentlessly bad as the news about global warming seems to be, with ice at the poles melting faster than scientists had predicted and world temperatures rising higher than expected, there was at least a reservoir of hope stored here in Canada's vast forests.
The country's million square miles of trees have been called the nlungs of the planet" by ecologists because they account for more than 7 percent of Earth's total forest lands. They could always be depended upon to suck in vast quantities of carbon dioxide, naturally cleansing the world of much of the harmful heat-trapping gas.
But not anymore. In an alarming yet little-noticed series of recent studies, scientists have concluded that Canada's precious forests, stressed front damage caused by global warming, insect sand persistent fires, have crossed an ominous (危险的)line and are now pumping out more climate-changing carbon dioxide than they are sinking. Worse yet, the experts predict that Canada's forests will remain net carbon sources, as opposed to carbon storage "sinks", until at least 2022, and possibly much longei*.
*'We are seeing a significant distortion of the natural trend," said Werner Kurtz, senior research scientist at the Canadian Forest Service and the leading expert on carbon cycles in the nation's fore