题目内容
17.Testing the five-second ruleYou may have seen a friend drop food on the floor,pick it up,and eat it,while declaring,"Five-second rule!"It's said that food dropped on the floor for five seconds or less is still likely to be clean.(33)A.
Students at Britain's Aston University,led by microbiology professor Anthony Hilton,tested the rule and found it to have some scientific basis.The study's results show that food dropped for five seconds is less likely to contain bacteria than if it sits there for longer,according to Hilton.
The students also found that the type of flooring where the dropped food lands has an effect.(34)B Bacteria are most likely to transfer from tiled (铺瓷砖的) surfaces to moist food when the food has stood there for more than five seconds.
(35)F Therefore,consumers should still be cautious."However,the findings of this study will bring some light relief to those who have been employing the five-second rule for years,despite a general consensus that it is purely a myth,"professor Hilton said in a statement.
The research team at Aston also surveyed 500people to find out who employs the five-second rule.Of the people surveyed,87% said they would eat food dropped on the floor,or have done so in the past.(36)C"Our study showed people are also more likely to follow the five-second rule,which our research has shown to be much more than an old wives'tale,"Hilton says.
Still,scientists say you should be careful about eating food dropped on the floor,especially if you have doubts about the cleanliness of the surface.(37)G
A.But is that true?
B.Carpeted surfaces posed the lowest risk.
C.Of those people,the majority were women.
D.We've just lost our last excuse to eat food off the floor.
E.Usually people recover from the infection in five to ten days.
F.There is still a risk of infection if certain bacteria are present on the dropped surface.
G.A biologist points out that one in six Americans get sick from food poisoning every year.
分析 文章介绍了the five-second rule五秒规则,并通过一些实验表面人们对掉在地上的食物还是要保持谨慎.
解答 33-37 ABFCG
33.A 细节题.根据前面的句子Five-second rule!"It's said that food dropped on the floor for five seconds or less is still likely to be clean.可知,‘五秒定律'指的是食物掉在地上五秒内是干净的,但是事实真如此吗?故选A.
34.B 细节题.根据前句The students also found that the type of flooring where the dropped food lands has an effect可知,食物掉的地板类型也会有影响,比如地毯、瓷砖等,故选B.
35.F 推理题.从后句Therefore,consumers should still be cautious可知,消费者还是要小心,因为如果地上已经有某种细菌的存在还是有风险的,故选F.
36.C 细节题.从后面的句子"Our study showed people are also more likely to follow the five-second rule,which our research has shown to be much more than an old wives'tale得知,做研究中大部分都是上了年纪的女性,故选C.
37.G 推理题.根据最后一句scientists say you should be careful about eating food dropped on the floor,especially if you have doubts about the cleanliness of the surface得知,科学家建议我们应该对掉在地上的食物谨慎,尤其是对表面怀疑,故选G.
点评 做七选五题目时要注意以下规则:1.放进去通顺,这一点是基础.凡不通顺的必错无疑;2、选项中有单词、词组、句子成分或与所选答案所在段内容重合;
3、选项与其上句或下句之间有必然的逻辑关系;4、选项全部内容都属于正确答案所在段.有时备选答案中可能含有甲乙两项内容,这时,只有当甲和乙都归属于本段时,答案才是正确的.
A. | not steal;be set free | B. | didn't steal; was set free | ||
C. | didn't steal; be set free | D. | not steal;was set free |
A. | referred to be put | B. | refer to be put | ||
C. | referred to | D. | was referred to put |