9.Food picked up just a few seconds after being dropped is less likely to contain bacteria than if it is left for longer periods of time,according to the findings of research carried out at Aston University's School of Life and Health Sciences.The findings suggest there may be some scientific basis of the"5-second rule"-the belief about it being fine to eat food that has only had contact with the floor for five seconds or less.Although people have long followed the‘5-second rule',until now it was unclear whether it actually helped.
The study,undertaken by final year Biology students and led by Anthony Hilton,Professor of Microbiology at Aston University,monitored the transfer of the common bacteria from a variety of indoor floor types as carpet,cement floor to toast,pasta,biscuit and a sticky sweet when contact was made from 3to 30seconds.The results showed that:time is a significant factor in the transfer of bacteria from a floor surface to a piece of food,and the type of flooring the food has been dropped on has an effect,with bacteria least likely to transfer from carpeted surfaces and most likely to transfer from cement flooring surfaces to moist foods making contact for more than 5seconds.Professor Hilton said,"Consuming food dropped on the floor still carries an infection risk as it very much depends on which bacteria are present on the floor at the time."
The Aston team also carried out a survey of the number of people who employ the‘five-second rule'.The survey showed that:87% of the people surveyed said they would eat food dropped on the floor,or already have done so.55% of those that would,or have eaten food dropped on the floor are women.81% of the women who would eat food from the floor would follow the‘5-second rule'.Professor Hilton added,"Our study showed that a surprisingly large majority of people are happy to consume dropped food,with women the most likely to do so.But they are also more likely to follow the‘5-second rule,which our research has shown to be much than an old wives'tale."
12.According to the passage,which of the following is true?D
A.A toast dropped on the carpet is easier to be polluted than that dropped on the cement floor.
B.A sticky chocolate dropped on the carpet is easier to be polluted than that dropped on the cement floor.
C.The food dropped on the carpet shares the same potential of being polluted with the food dropped on the cement floor.
D.The food dropped on the cement floor is not as safe as food dropped on the carpet within 30seconds.
13.What is the passage probably developed?A
A.Contrast
B.Example
C.Time
D.Space
14.How did Professor Hilton feel after analyzing how many people chose to eat dropped food?D
A.Puzzled
B.Upset
C.Satisfied
D.Astonished
15.What is the main idea of this passage?B
A.The food which is dropped on the floor can be eaten safely.
B.A research on the safety of food dropped on the floor is undertaken.
C.The bacteria have no negative effect on the safety of food.
D.People surveyed in the research are willing to accept the idea.
分析 人們遵循的"五秒鐘法則",即"掉落的東西在五秒之內(nèi)是不會(huì)沾染細(xì)菌的"這一說法是正確的嗎?美國南卡羅萊納州的科學(xué)家做了一個(gè)實(shí)驗(yàn),結(jié)果發(fā)現(xiàn)僅僅五秒鐘,沾染到食物上的細(xì)菌足以致病,所以下次掉地上食物的時(shí)候,還是選擇五秒鐘法則吧.
解答 12.D,推理判斷題,根據(jù)句子with bacteria least likely to transfer from carpeted surfaces and most likely to transfer from cement flooring surfaces to moist foods making contact for more than 5seconds可知,在水泥板上的東西細(xì)菌沾染得比地毯上的快得多,可推測30秒內(nèi)掉在水泥板上的東西不像掉在地毯上的那么安全,故答案為D.
13.A,推理判斷題,人們遵循的"五秒鐘法則",即"掉落的東西在五秒之內(nèi)是不會(huì)沾染細(xì)菌的"這一說法是正確的嗎?美國南卡羅萊納州的科學(xué)家做了一個(gè)實(shí)驗(yàn),結(jié)果發(fā)現(xiàn)僅僅五秒鐘,沾染到食物上的細(xì)菌足以致病,因此短文采用的是對比的方法,故答案為A.
14.D,推理判斷題,根據(jù)最后一段倒數(shù)第二節(jié)Our study showed that a surprisingly large majority of people are happy to consume dropped food,with women the most likely to do so,令人驚訝的是,我們的研究表明大多數(shù)人愿意吃掉食物,女性最有可能這樣做,故答案為D.
15.B,主旨大意題,人們遵循的"五秒鐘法則",即"掉落的東西在五秒之內(nèi)是不會(huì)沾染細(xì)菌的"這一說法是正確的嗎?美國南卡羅萊納州的科學(xué)家做了一個(gè)實(shí)驗(yàn),結(jié)果發(fā)現(xiàn)僅僅五秒鐘,沾染到食物上的細(xì)菌足以致病,所以下次掉地上食物的時(shí)候,還是選擇五秒鐘法則吧,故答案為B.
點(diǎn)評 解答任務(wù)型閱讀理解題,首先對原文材料迅速瀏覽,掌握全文的主旨大意.因?yàn)殚喿x理解題一般沒有標(biāo)題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細(xì)讀題材,各個(gè)擊破.掌握全文的大意之后,細(xì)細(xì)閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時(shí),要有較強(qiáng)的針對性.對于捕獲到的信息,要做認(rèn)真分析,仔細(xì)推敲,理解透徹,只有這樣,針對題目要求,才能做到穩(wěn)、準(zhǔn).