首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
By "some people" I mean me. Why is it that an evening stroll(散步) leaves me feeling eaten alive while my companions are left blis
By "some people" I mean me. Why is it that an evening stroll(散步) leaves me feeling eaten alive while my companions are left blis
admin
2018-04-13
23
问题
By "some people" I mean me. Why is it that an evening stroll(散步) leaves me feeling eaten alive while my companions are left blissfully un-bitten?
Studies suggest that about 20 percent of people are "high attractor types" who are especially appealing to the female mosquitoes (蚊子) seeking out blood for the extra protein (蛋白质) they need to lay eggs. Of course, not all mosquitoes are the same. But let’ s consider some of the more general properties that affect your mosquito appeal.
Clothing Color
It’s true, mosquitoes have discerning(有辨识能力的) fashion taste. Or at least, they’ re more likely to spot you as a target if you stand out from your environment. Dark colors, especially, will attract more of the insect.
Body Heat
Visual clues allow the mosquito to locate you from relatively far away, but as she approaches, it’ s your body heat that draws her in. This puts pregnant women, who average about 1. 26 degrees Fahrenheit (华氏温度) warmer than others, at a particular risk—a fact which has been substantiated (证实) by a number of studies.
Carbon Dioxide
This is another reason pregnant women are at a disadvantage. Mosquitoes can detect carbon dioxide using a special organ called a maxillary palp (下颚须) from as far as 164 feet away. Unfortunately for mothers-to-be, pregnancy causes women to emit 21 percent more CO
2
. This is also why kids are often safe from bites, when bigger, more CO
2
-emitting adults are around.
Alcohol Intake
On the flip side(另一方面) , pregnant women are (presumably) avoiding another mosquito attractor: alcohol. Although it’ s unclear how mosquitoes go about detecting the presence of ethanol(乙醇), studies show that drinking even just 12 ounces of beer will significantly increase the attention you receive from the pests.
The Properties of Your Skin and Sweat
Up to 85 percent of your susceptibility(敏感性) to mosquito bites has nothing to do with what you’re drinking, wearing or how much heat your body emits—it’ s just genetic. Specifically, the composition of your skin bacteria—the kind that naturally and healthily exists there—can serve as an attractor.
Blood Type
Another factor you can ’ t control? Your blood type. And it stands to reason that, if the mosquito is there to suck your blood, she cares what kind she’ s getting. People with blood type O are more prone to mosquito bites than those with type B, with type A folks bringing up the rear.
What is the best title for this passage?
选项
A、Properties That Affect Your Mosquito Appeal
B、Why Pregnant Women Attract Mosquitoes Easily?
C、Your Gene Make You More Attractive to Mosquitoes
D、Why Are Some People More Prone to Mosquito Bites?
答案
D
解析
主旨大意题。故选D。
转载请注明原文地址:https://kaotiyun.com/show/PuWC777K
本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
相关试题推荐
()leavestheroomatlastoughttoturnoffthelights.
Itwasanearlymorninginsummer.Inthestreets,sleepy-eyedpeopleweremovingquickly,headingtowardstheir【C1】______Thisw
()thatthetradebetweenthetwocountriesreacheditshighestpoint.
Canmachinesperformthesametasks()?
Wecovettheirfood,theirwineandtheirconfoundingabilitytostayslimwhileconsumingboth...butshouldwebeadmiringthe
【R1】______Suchasrunnynoses,sorethroats,nothingquitelikethecommoncoldtomakeyoufeelmiserable.Butexpertsbelieve
Anadultgiraffe’sheadisaboutsixfeetaboveitsheart.Thismeansthatto【C1】______enoughblooduptothebrainthecirculat
Forhundredsofmillionsofyears,turtleshavestruggledoutoftheseatolaytheireggsonsandybeaches,longbeforetherew
Personswhoareoverweightshouldwatchtheirdietcarefullyinordertolosepounds.Thebestwaytodothisistostartaweig
ThenextafternoonIwentto______MissBarkleyagain,butfoundherout.
随机试题
以下属于不良疾病行为的是
患者,男,65岁,高血压史10年,近日被诊断为肺结核,降血压药维拉帕米与以下抗结核药需增加剂量的是()。
RTK技术不能应用的领域是()。
企业出售固定资产应交的营业税,应借记的会计科目是()。
通常认为,一般能力的核心是()
使用VC6打开考生文件夹下的源程序文件modi2.cpp。阅读下列函数说明和代码,实现函数sort(intA[],intn),用选择排序法把数组从大到小排序。提示:选择排序法的思想是:(1)反复从还未排好的那部分线性表中选择出关键字最小的节点;(
AlessandroFox______goestothedrivingrangeatleastthreetimesaweektopracticehisgolfswing.
HenryFielding,thefamousnovelistwhowasalsoaLondonmagistrate,oncemadeanightraidtotwoknownhideoutsinthis【M1】_
AlthoughtheArcticlookslifeless,thereareanimalsmovingabout.Cariboutravelupanddownfeedingonthegrassbeneaththe
Whataboutthedistinctionbetweenviolentactsandnon-violentonesinsports?Theauthor’smainthoughtisthat______.
最新回复
(
0
)