衡阳八中高一下英语竞赛201605.docVIP

衡阳市第八中学2016年高一单科竞赛 第二部分：阅读理解（共两节，满分40分） 第一节（共15题；每小题2分，满分30分） A It is generally believed that we are getting cleaned when we stepunder a shower. We are, but we’re also giving a home to lots of tiny little creatures we didn’t even know about. A showerhead carries thousands of bacteria called Mycobacterium. These can cause problems like coughs and tiredness, and a general feeling of being sick. When you turn on the water, the bacteria go from the showerhead onto and into your body.??? This is a finding of Norman R. Pace and his team at the University of Colorado, in the US. Paces team looked at 45 showerheads in nine American cities. They discovered that 30 percent of them had large amounts of flying Mycobacterium. But Pace said that they pose few threats to the health. Only those with a weak immune system might need to worry．He told the New YorkTimes that the bacteria are not as unpleasant as might be thought．He said that having a shower is no more dangerous than anything else we do in the morning．But for those who feel sick about the idea of all those microorganisms (微生物), he had some advice. Let the water run for 30 seconds before getting into the shower. Why? The number of bacteria is smaller than that when the water is just turned on. If that seems like a waste of water, he added that you could also change your showerhead every few months.??? However, Pace had good news too. He has also been testing the air in US subways. Apart from iron particles (粒子), which are ground off the track by the wheels of trains, subway air is fresh. The reason is that a train’s movement pumps fresh outdoor air into the tunnels.21. From the finding of Norman R. Pace, after taking a shower, we might cough or feel tired because???_______.??? .?? A. it’s easy to get a cold when taking a bathB. the showerhead carries many bacteria causing illness ?? C. we don’t get cleaned while showeringD. we don’t get a weak immune system22.We can learn from the third paragraph that????______