1.In the rush to get to school,you drop a piece of toast on the floor.Do you throw it away or decide it's still OK to eat?If you're like most people,you eat it.Maybe you follow the"5-second rule",which claims foods are safe to eat if you pick them up within 5seconds after dropping them.But you might want to think again.Scientists now say that 5seconds is all it takes for foods to become polluted with enough bacteria(细菌)to make you sick.
Bacteria can cause many kinds of illnesses.Some kinds of bacteria can grow on food.If you eat foods on which these bacteria are growing,you can become sick.
One of these food-borne bacteria is Salmonella.It makes 1.4million people sick every year.Salmonella is often found in raw eggs and chicken.Cooking kills these bacteria,which is why it is so important to cook eggs,chicken,and other foods thoroughly.
But how long does it take these bacteria to pollute food?A team of scientists in South Carolina did an experiment.First,they placed an amount of Salmonella on three surfaces; wood,tile (瓦片),and carpet.They placed a piece of bread and a piece of bologna(一种大红肠)on each surface for 5,30,or 60seconds.After just 5seconds,both the bread and the bologna picked up enough bacteria to make you sick.
So,forget the 5-second rule.If your toast drops on the floor,throw it away and get another piece of clean toast.And this time,be careful not to drop it!
32.In which part of a newspaper can you most probably find this passage?B
A.Culture B.Health C.Advertisement D.Technology
33.After dropping a piece of toast,a person who follows the"5-second rule"willB.
A.throw away dirty toast immediately and go away
B.pick up the toast as quickly as possible and eat it
C.eat the toast within 5seconds and feel pleased
D.get another piece of clean toast quickly and eat it
34.The scientists in South Carolina did the experiment toA.
A.see how quickly bacteria can pollute food
B.show that the 5-second rule is correct
C.see how harmful bacteria are to people's health
D.show that bacteria grow at different speeds on different foods
35..What's the writer's attitude to the"5-second rule"?B
A.positive.B.negative.C.neutral(中立).D.cautious(谨慎)
分析 南卡罗来纳州的一组科学家做了一个最新的科学研究,表明5秒就足够使食物被细菌污染,让你生病.
解答 32.B 判断出处题.由全文内容可知,这是一项关于细菌污染的研究,因此可能在健康杂志上出现,故选B.
33.B 理解判断题.由第一段,Maybe you follow the"5-second rule",which claims foods are safe to eat if you pick them up within 5seconds after dropping them,人在面包掉地上五秒钟内应该尽快捡起并吃掉,故选B.
34.A 细节理解题.由最后一段But how long does it take these bacteria to pollute food可知实验室研究细菌污染食物有多快,故选A.
35.B 情感推断题.由全文可知,作者并不认为这个规则是正确的甚至要人们忘记它,故选B.
点评 此类阅读难度比一般阅读较大,它存在的生词比较多,因此考生应当综合略读、跳读和查读,猜词等阅读技巧来做题,平时也应加强练习.