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
Imagine going to sleep in October and waking up in May! Well, marmots and ground squirrels stay warm by sleeping all winter. All
Imagine going to sleep in October and waking up in May! Well, marmots and ground squirrels stay warm by sleeping all winter. All
admin
2013-12-10
15
问题
Imagine going to sleep in October and waking up in May! Well, marmots and ground squirrels stay warm by sleeping all winter. All this time, they do not wake up once. This special kind of sleep is called hibernation. During this sleep, the heart slows down, and the animal breathes more slowly, it doesn’t move around, so it uses less energy.
Animals like the marmot and the ground squirrel inhabit the coldest parts of the world. They need special talents to survive in these frigid places. Their furry coats keep them snug when the temperature falls below zero. It often gets this cold in the Arctic, a land that is just below the North Pole.
Before the long winter, some animals eat and eat. After a while, they grow very fat. When the winter comes, they live on the fat saved up in their bodies. Layers of fat keep an animal warm.
Arctic animals also have other ways to beat the cold. Rabbits in the Arctic, for example, have very small ears. Small ears keep heat in, while big ears let it out. Small things usually keep heat in. Have you ever slept in a room that is very small, and noticed how hot it can get?
It rarely gets warm in the Arctic. But although summer seasons there are very short, the sun shines brightly. Plants seem to spring up before your eyes! Animals such as caribou look forward all year to summer, when they can eat fresh grass again. Every minute of sunshine is important to their lives.
To help the reader understand that small things keep heat in, the writer uses______.
选项
A、an example
B、a strong argument
C、scientific facts
D、careful measurements
答案
A
解析
倒数第二段。作者用一系列的例子说明小空间可以保持温度不释放掉。选项A是正确的。
转载请注明原文地址:https://kaotiyun.com/show/gKeC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
NothavingagoodcommandofEnglishcanbeaserious______preventingyoufromachievingyourgoals.
Manypeoplethinkatelephoneisessential.ButIthinkitisapestandatimewaster.Veryoftenyoufinditimpossibletoesc
Pickouttheappropriateexpressionsfromtheeightchoicesbelowandcompletethefollowingdialoguesbyblackeningthecorresp
Nowadays,peopleworklongerhoursthantheyusedto,butaretheyreallyworkingharderthaneverbefore?Apparently,manypeop
Thenumberofstudentsinaforeignlanguagesclass______usuallylimitedtonomorethanthirty.
Therailroadindustrycouldnothavegrownaslargeasitdidwithoutsteel.Thefirstrailsweremadeofiron.Butironrailsw
AllthestudentsinthisclasspassedtheEnglishexam______theexceptionofLiMing.
Thequestions______inEnglish.()
Wildandfarmbirdsoftengetafluvirus.Yettheyusuallyareabletocarrytheviruswithoutgettingsick.In1997sixpe
随机试题
简述中外秘书收集处理信息方面的相同相近之处。
基础代谢率常用于下列哪种疾病的诊断()
下列哪项不是巨大溃疡的临床特点
患儿,男,5岁。发热,咳嗽6天,伴呕吐、抽搐2次入院。体检:T39.8℃,嗜睡,胸、腹部及四肢皮肤有淤斑,前囟隆起。双肺呼吸音粗糙,可闻及少许干性啰音。脑脊液检查:外观浑浊,白细胞1200×106/L,以中性粒细胞为主。不妥的护理措施是
某公司货车司机甲,因违法行为被工商行政管理部门连车带货扣押。当天晚上,甲带上尖刀、钳子潜入工商所,试图将自己的汽车取回。甲正在用工具撬车门时,被值班人员发现。当值班人员来抓他时,甲用尖刀重伤一名值班人员。甲的行为属于:()
【背景资料】某高校投资一建筑面积30000m2教学楼,拟采用工程量清单以公开招标方式施工招标。业主委托有相应招标和造价咨询资质的咨询企业编制招标文件和最高投标限价(最高限价5000万元)。咨询企业在编制招标文件和最高限价时,发生:事件1
某单位会计人员在审核一张购买原材料的发票时,发现发票上的单价和金额用涂改液进行了涂改,且材料单价明显高于市场价格,对于该凭证下列说法正确的是()。
①随着核磁共振等技术的不断进步,科学家们基本达成了共识,那就是记忆储存在大脑的海马区②科学家们发现,记忆储存于神经细胞的连接方式之中③这个改变是由一系列基因负责实现的④要想研究记忆,首先必须弄清记忆究竟储存在什么地方
某城市私家汽车牌照的格式为“冀EB口-口口口”,前1格是英文字母(除了字母A、N外),后3格为0-9这十个数字其中的3个数字(可重复),则任意遇到一辆私家车,牌照的后面3格中有且仅有2个连续“6”的概率是
An"applepolisher"isonewhogivesgiftstowinfriendshiporspecialtreatment.Itisnotexactlyabribe(贿赂),butiscloset
最新回复
(
0
)