文档介绍：Part II prehension (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 I.
For questions 1-7, mark
Y (for YES) if the statement agrees with the information given in the passage;
N (for NO) if the statement contradicts the information given in the passage;
NG (for NOT GIVEN) if the information is not given in the passage.
For questions 8-10, complete the sentences with the information given in the passage.
If you've kept up with the news lately, you've probably heard dire warnings about avian flu, or bird flu. It's a highly infectious disease that has swept through the Asian bird population. In October of 2005, the disease reached Eastern Europe, most likely through migratory birds. By January of 2006, several people in Turkey had contracted the disease. Although the virus does not infect humans easily, more than half of the people who have contracted it have died.
But what exactly is bird flu? How is it different from the seasonal flu that people experience every year? How does it threaten people? What are governments doing to stop its spread? Viruses and Influenza: An Overview
A virus particle--or virion(病毒体)-- is a microscopic packet that contains ic material wrapped in a layer of protein. Some viruses also have a lipid membrane(细胞膜) around the protein c