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
43
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 false about the " clothing color" and "body heat" factors?
选项
A、The heat surrounding you helps to attract the mosquito far away.
B、The mosquito easily detects people who wear different colors from others.
C、Mosquitoes like warm places.
D、The pregnant women get bitten much easier because they are warmer.
答案
A
解析
事实细节题。根据文章第四段内容“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.”可知,视觉线索帮助蚊子从远处定位,但当它靠近你之后,是你的体温吸引了它。由此可知,A项错误。
转载请注明原文地址:https://kaotiyun.com/show/DuWC777K
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
Thepeopletherewillpaytwoorthreetimesasmuchastheyusedtopayforahouse.
Itwasanearlymorninginsummer.Inthestreets,sleepy-eyedpeopleweremovingquickly,headingtowardstheir【C1】______Thisw
—Areyougoingdowntownthisafternoon?—Iamgoingtohavetheseletters().
Anadultgiraffe’sheadisaboutsixfeetaboveitsheart.Thismeansthatto【C1】______enoughblooduptothebrainthecirculat
Anadultgiraffe’sheadisaboutsixfeetaboveitsheart.Thismeansthatto【C1】______enoughblooduptothebrainthecirculat
Therearemanyskilledtradesortechnicaljobs,usuallyinvolvingworkwithtoolsormachines,frequentlycalled"blue-collar"
Ifyou______intakingthisattitude,we’llhavetoaskyoutoleave.
Formillionsofpeople,theAmericandreamofowningahomeseemstobeslippingoutofreach(够不着)."Maybeyoungcouplescanno
Moreover,theycannotaffordtosleeptoolongortoodeeply,becausetheirsurvivaldependsontheirabilitytorunawayfroma
Onlywhen______intheafternoon______abletoleave.
随机试题
内存储器可大致分为()和()两类。
依据现行的《收养法》,被收养人的条件不包括()
女性,60岁。短暂阵发性左侧肢体抽搐1年,每次持续2~3分钟入院。入院后神经系统检查阴性。既往有肝硬化病史,平时WBC3.0×109/L左右,血小板108×109/L。如该患者诊断为癫痫,目前每年发作1~2次,最妥当的处理措施是
A、贺桌应当在主债权诉讼时效期间行使抵押权B、贺某在主债权诉讼时效结束后的两年内仍可行使抵押权C、张某的保证期间为主债务履行期届满之日起6个月D、张某的保证期间为主债务履行期届满之日起2年A,C①《物权法》第202条规定:“抵押权人应当在主债权诉讼
某化工厂扩建,A单位承接维修间新建工程PC项目。A单位将车间内20t行车安装承包给无资质的作业队B。作业队B与A单位签订合同,仅约定质量要求和承包价款。C单位为B作业队提供担保。施工期间质检发现3台车床安装用垫铁埋设存在超标的质量问题,具体如下:1号车床
以下行为中,行为人应承担过错责任的是()。
以“春天”这个主题,音乐教师让学生们欣赏了门德尔松的《春之歌》和斯特拉文斯基的《春之祭》,这体现了音乐比较中的()
欢乐的溪流唱着清脆的歌声,跳着优美的舞姿奔向远方。
劳动的最初表现形式是( )。
《颜氏家训》
最新回复
(
0
)