首页
登录
职称英语
[originaltext] (22) We’ve now discussed how most snakes move, but there are so
[originaltext] (22) We’ve now discussed how most snakes move, but there are so
游客
2024-01-20
24
管理
问题
(22) We’ve now discussed how most snakes move, but there are some exceptions. One is the snake called the American side-winder. (23) 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. (24) 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. (25) 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、All sorts of snakes in the world.
B、How the skiers climb a slope on skis.
C、The special movement of the side-winder.
D、The direction that the side-winder follows.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3380209.html
相关试题推荐
[originaltext](22)Afewdegreescanmakeabigdifferencewhenitcomesto
[originaltext](22)Afewdegreescanmakeabigdifferencewhenitcomesto
[originaltext]Acommonchallengeformanyteachersiskeepingtheirstudents
[originaltext](16)Itiswhatfaileddietershavelongsuspected:Fatpeople
[originaltext](16)Itiswhatfaileddietershavelongsuspected:Fatpeople
[originaltext]M:Goodmorning,DoctorAlbert.W:Goodmorning.MayIhaveyour
[originaltext]W:Goodafternoon,sir!IsthereanythingIcandoforyou?M:Ye
[originaltext]W:Goodafternoon,sir!IsthereanythingIcandoforyou?M:Ye
[originaltext]W:Goodafternoon,sir!IsthereanythingIcandoforyou?M:Ye
[originaltext]Thissummer,thelatestversionofGoogle’sself-drivingcarwill
随机试题
"Freshmanfifteen"isatermwhichmeansfifteenpounds,oraboutsevenkilo
JudgeBonhamdeniedamotiontoallowmembersofthejurytogohomeattheend
BritonsarethefattestpeopleinEurope,withoneoftheworld’sfastestob
Itwasacold,rainyandwhollymiserableafternooninWashington,andahot
治疗心绞痛()A.尼索地平 B.硝苯地平 C.二者均可 D.二者均不可
A.《内经》 B.《难经》 C.《金匮要略》 D.《医宗必读》 E.《理
妊娠晚期合并急性病毒性肝炎者,应给予重视和积极治疗,因为A.容易发生糖代谢障碍,
A. B. C. D.
“海水满盈盈的,照在夕阳之下,浪涛像顽皮的小孩似的跳跃不定,水面一片金光。”这句
关于砌体工程质量验收的说法,正确的有( )。A.施工现场砌块应按品种、规格堆放
最新回复
(
0
)