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
外语
Some desert animals can survive the summer heat and dryness because they are very unusual. The camel, for example, can experienc
Some desert animals can survive the summer heat and dryness because they are very unusual. The camel, for example, can experienc
admin
2011-02-28
44
问题
Some desert animals can survive the summer heat and dryness because they are very unusual. The camel, for example, can experience and bear an increase in the temperature of its body and its blood of 9°C without anything bad happening to it. In addition, it can drink a lot of water at one time; then store enough water in parts of its body to supply its needs for two weeks or more. The kangaroo rat, on the other hand, gets all the water it needs from water that it produces when it breathes. However, most animals need to maintain a fairly constant body temperature, and will die if it rises more than 5°C. Therefore, they need to find some way to stay away from the heat of the summer sun. Nor can many animals either store or produce water in their bodies, as the camel and kangaroo rat can. So they must find ways to keep their bodies from losing water because of the heat. Because very few desert animals can survive the high temperature of a typical summer’s day, most of them are active only in the night. Only after the sun has set does the desert come fully to life. The night is relatively cool. and the darkness provides protection, not only from the sun, but also from other animals and from the birds. So the coming of darkness is the signal for the large majority of animals and insects to start again their search for water and food. When morning comes, most of them seek shelter again: many go underground; nearly all find some dark and cool places where they, can keep away from the sun’s heat.
For many kinds of insects, living in the desert is easier than for animals. Like many desert plant’s, they have a waterproof skin which prevents water loss because of the high temperature. In addition, some spend all or most of their life below ground. Here, for most of the year at least, it is moist, and it is generally cooler than on the surface. In the case of ants, only adults leave the underground nests, and they do so only to gather food or to defend the nest against attack.
It is easy for many kinds of insects to live in the desert because ______.
选项
A、They only need a little food to survive
B、they are not afraid of the heat
C、They are too small to be attacked by other animals
D、they have a skin which is against water
答案
D
解析
由题干关键词many kinds of insects定位到最后一段第一、二句Like many desert plants, they have a waterproof skin which prevents water loss because of the high temperature.许多昆虫在沙漠中容易生存下来的原因是它们有一层能防水的皮肤,可以阻止因高温而蒸发体内水分。因此选[D]。[A]、[B]、[C]与文意不符,故排除。
转载请注明原文地址:https://jikaoti.com/ti/3VzsFFFM
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
HowlongdidEmilyDickinsonliveinthehousewhereshewasborn?
[A]SetaGoodExampleforYourKids[B]BuildYouKids’WorkSkills[C]PlaceTimeLimitsonLeisureActivities[D]Ta
[A]SetaGoodExampleforYourKids[B]BuildYouKids’WorkSkills[C]PlaceTimeLimitsonLeisureActivities[D]Ta
Whentheauthor’scompanystartedoperation,hehad______.Arthurimpliesthattostartabusinessintimesofchange,people
Animalshavebeenkeptaspetsbypeopleinallpartsoftheworldforthousandsofyears.Themost【C1】______petsaredogs,cats
Animalshavebeenkeptaspetsbypeopleinallpartsoftheworldforthousandsofyears.Themost【C1】______petsaredogs,cats
Howdofansimitaterockstars?
随机试题
信源是消息的发源地,其作用是通过传感器把消息转换为原始电信号,即完成___________的转换。
某施工企业于2008年3月5日向发包人提交了竣工验收报告,比合同约定工期提前一周,但发包人以质量存在严重缺陷为由拒绝组织验收。双方经协商,于2008年3月20日提请有关部门进行质量鉴定,鉴定部门于2008年4月10日出具了工程质量合格的鉴定结论。则该工程的
在我国,()从事期货交易限于从事套期保值业务。
申请个人汽车贷款时,所购车辆为商用传统动力的,贷款额度不得超过()。
以下关于我国现有社区物业管理模式表述正确的是()。
【2008年河北省第54题】大年三十彩灯悬,灯齐明光灿灿,数时能数尽,五五数时剩一盏,七七数时刚刚好,八八数时还缺三,请你自己算一算,彩灯至少有多少盏?
某学校原有学生980人,在毕业离校140人、新生入校160人后,男生人数比女生人数多50人,该校现在男、女学生的人数分别为().
把一个圆柱体的侧面积和高都分别扩大到原来的若干倍,则底面半径一定扩大到原来的4倍(1)侧面积扩大到原来的8倍,而高扩大到2倍(2)侧面积扩大到4倍,高也扩大到4倍
Theoldadageofthetitlehasaparallelinthescientificworld"allresearchleadstobiomedicaladvances".Thefactthatres
TheSeptember11thattacks____________________(对立法引起了连锁反应)inthesecondsessionofthe107thCongress,makingboundariesdifficul
最新回复
(
0
)