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
A、It can keep the body cooler. B、It can move more quickly. C、It can avoid the obstacles in moving. D、It can move much faster. A
A、It can keep the body cooler. B、It can move more quickly. C、It can avoid the obstacles in moving. D、It can move much faster. A
admin
2022-12-27
37
问题
We’ve now discussed how most snakes move, but there are some exceptions. One is the snake called the American side-winder
.
From its name, you can probably guess that it moves sideways rather than in a straight line. This is because it lives in the desert where the sand slips and slides
. With nothing firm to push against, the side-winder has to adapt its way of movement to the shifting sand. It pushes against the sand with the entire side of its body, and then moves sideways. Think about how a skier climbs a slope on skis. The skier places the skis at an angle of 90 degrees to the direction of movement. The skier then moves each ski by taking a step to the side up the slope. The side-winder snake moves in much the same manner. It lays its body at about 60-degree angle to the direction in which it wants to go. By doing this, the snake has more sand to push against.
Then it points its head in the direction it wants to go and leaps to a parallel spot. If you see the tracks left by side-winder in loose sand, you’ll see a series of paralleled lines
.
An advantage gained from this method of moving may be that the snake’s body is kept cooler by breaking off contact with the hot sand during its leaps
.
22. What is the main topic of the passage?
23. Why does the side-winder move the way it does?
24. What do the side-winder’s tracks look like?
25. What may be a special advantage of the side-winder’s way of moving?
选项
A、It can keep the body cooler.
B、It can move more quickly.
C、It can avoid the obstacles in moving.
D、It can move much faster.
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/E8jJ777K
0
大学英语四级
相关试题推荐
________somethingdrastichappensbeforemidnight,thepostalworkerswillmostlikelywalkoutontheirjobs.
TimRichterandhiswife,Linda,hadtaughtforover30yearsnearBuffalo.NewYork—heincomputers,sheinspecialeducation.“Teac
PASSAGEONEWhatcanreducethecitizens’emotionalresponseaftertheterroristattack?
CharacteristicsofAmericanCultureI.PunctualityA.Goingtothetheaterbe【T1】______twentyminutesprior
DearSir,IwillgraduatefromShanghaiUniversityofInternationalBusinessandEconomicsthisyear.Asastudentmajoring
A、Thesenseofbeingoutintheworld.B、Thecoffeeitprovides.C、Thecoffeetable.D、Thecomfortableworkingcondition.A
A、Byextractingthejuicefromthecoffeetree.B、Bypeelingtheskinofthecoffeecherry.C、Byroastingthebeansinsidethec
A、Beingconfinedtoentry-leveljobs.B、Receivinglowerpaythantheyshould.C、Beingpromotedmorequickly.D、Gaininglesswork
A、Tractorsandhandtools.B、Helicoptersandairplanes.C、Theslightlyhigherhumidity.D、The20-kilometerfirelines.C
Whentheplanearrived,someofthedetectiveswerewaitinginsidethemainbuilding________otherswerewaitingontheairfiel
随机试题
下列哪一项不位于皮质迷路()。
下列关于集体合同与劳动合同的描述,正确的是()。
莘企主作为某工程项目的总承包中标人,将中标项目的部分工作发包给乙企业完成,现乙企业分包项目出现问题。下列说法哪些是正确的?()
已设立的股份有限公司增资发行境内上市外资股时,公司净资产总值不低于()亿元人民币。
一般来说,外国旅游者不得葬在我国境内。()
阅读关于“地震”的图文资料,按要求完成教学设计任务。材料一《普通高中地理课程标准(实验)》的内容标准要求:“简述地震、泥石流、滑坡等地质地貌灾害的产生机制与发生过程。”材料二某版本教科书中关于“地震”的内容。(一)地震
根据我国刑法,下列说法中正确的是()。
Whatisthebroadcastmainlyabout?
Theexpectationthatscienceisastablebodyofrelativelyobjectiveknowledgeonwhichthelawcandrawtosettlelegalcontro
【S1】【S3】
最新回复
(
0
)