题目内容
6.Given that female bed bugs lay over 200eggs during their lifetime,it's not surprising that about one out of five American households have had or know someone who has had a bed bug infection.But a new study shows that an unexpected weapon may be useful in the fight against the tiny,biting enemies:color The BBC's Michelle Roberts reports that bed bugs appear to have strong preferences for certain colors.A group of researchers became curious about whether bed bugs like certain colors,so they created tiny tents,or harborages of different colors and placed them in petri dishes(培养皿).The researchers then put bed bugs on the center of the dish,giving them ten minutes to choose which harborage they wanted to hide in.
Bed bugs are nest parasites(寄生虫)-that's why they love human"nests,"or bedrooms.So they're crazy about finding shelter.As a result,it would make sense that a bug placed on the scary broadness of a petri dish would rush for cover as soon as possible.
Most of the bugs ran to black and red harborages,passing by ones of other colors.And they weren't into yellow or green at a11.Overall,the bugs preferred harborages in this order:red,black,orange,blue,lilac,violet and green.Gender influenced the decisions because groups of single-gender bugs preferred the same colors Researchers guess that the decisions may have to do with bugs'considering different shelters as better or worse places to mate or perhaps stay safe from enemies.
"We originally thought the bed bugs might prefer red because blood is red and that's what they feed on,"says Dr.Corraine McNeill"However,after doing the study,the main reason we think they prefer red colors is that bed bugs themselves appear red,so they go to these harborages because they want to be with other bed bugs,as they are known to exist in groups."
28.What did the research discover?A
A.Bed bugs are particular about certain colors.
B.Bed bugs have a preference for living in groups.
C.Bed bugs are difficult toget rid of.
D.Bed bugs are afraid of dark colors.
29.The word"harborages"in Para 2can be replaced by"D".
A.bed rooms
B.dishes
C.eggs
D.shelters
30.Bed bugs like red mainly becauseA.
A.they are red
B.red is beautiful
C.red can scare their enemies away
D.b1ood is red and they feed on blood
31.What colour sheet should people choose against bed bugs according to the research?B
A.Red.
B.Yellow.
C.White.
D.Black.
分析 本文主要写了臭虫与它喜欢的颜色的研究,通过研究让人们了解臭虫的习性,用床单的颜色就可以去除臭虫.
解答 28.A 细节理解题.根据句子color The BBC's Michelle Roberts reports that bed bugs appear to have strong preferences for certain colors.英国广播公司的Michelle Roberts报道,臭虫似乎对某些颜色有强烈的偏好.
29.D 词义猜测题.A group of researchers became curious about whether bed bugs like certain colors,so they created tiny tents,or harborages of different colors and placed them in petri dishes.一组研究人员开始对是否臭虫喜欢某些颜色感到好奇,于是他们制造了了小小的帐篷,或harborages把臭虫放在不同颜色的器皿中培养. 可以推测harborages与小小的帐篷是并列的,应该是培养臭虫的场所,所以D选项shelters"庇护所"与之同义.
30.A 推理判断题.the main reason we think they prefer red colors is that bed bugs themselves appear red,so they go to these harborages because they want to be with other bed bugs,as they are known to exist in groups."主要原因我们认为他们喜欢红颜色是臭虫自己是红色,所以他们去这些harborages因为他们想与其他的臭虫在一起,因为它们想存在于群体."可以推断出答案选A.
31.B 推理判断题.根据句子And they weren't into yellow or green at a11.他们从来不进入黄色或者绿色,可以推断出人们可以用黄色的或绿色的床单来驱赶臭虫,所以答案选B.
点评 阅读理解题测试考生在阅读基础上的逻辑推理能力,要求考生根据文章所述事件的逻辑关系,对未说明的趋势或结局作出合理的推断;或根据作者所阐述的观点理论,对文章未涉及的现象、事例给以解释.考生首先要仔细阅读短文,完整了解信息,准确把握作者观点.
- .The train had left early.( )
A. | Don't mention it | B. | I have no idea | ||
C. | Are you kidding me | D. | Just my luck |