首页
登录
职称英语
Most of the animals have little connection with animals of a different kind,
Most of the animals have little connection with animals of a different kind,
游客
2025-07-21
16
管理
问题
Most of the animals have little connection with animals of a different kind, unless they hunt them for food. Sometimes, however, two kinds of animals come together in a partnership which is good for both of them. You may see some birds sitting on the backs of sheep. This is not because they want a ride, but because they find easy food in me parasites (寄生虫) on sheep. The sheep allow the birds to do so because they can remove the cause of discomfort. So although mey can live without each other, they do better together.
Sometimes an animal has a plant partner. The relationship develops until the two partners cannot live without each other. This is so in me corals(珊瑚)of the sea. In their skins mere are tiny plants which act as "dustmen" , taking some of the waste products from me corals and giving in return oxygen(氧气) which the animal needs to breathe. If the plants are killed, or are even prevented from receiving light so that they cannot live normally, the corals will die. [br] The underlined word "they" in the last sentence of the first paragraph refers to______.
选项
A、birds and parasites
B、birds and sheep
C、parasites and sheep
D、sheep, birds and parasites
答案
B
解析
从文章第一段“The sheep allow the birds to do so because they can remove the cause of discomfort. So although they can live without each other they do better together.”可知,这里的“they”指的是鸟和羊。故正确的答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/4170495.html
相关试题推荐
Mostoftheanimalshavelittleconnectionwithanimalsofadifferentkind,
Mostoftheanimalshavelittleconnectionwithanimalsofadifferentkind,
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinkin
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinkin
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinkin
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinkin
Itwasasunnyday.Alittleboy’sfatherwassittingonthecouch,drinkin
WhenIwasalittlegirl,everytimemydadwasrepairingsomething,he【K1】_
WhenIwasalittlegirl,everytimemydadwasrepairingsomething,he【K1】_
WhenIwasalittlegirl,everytimemydadwasrepairingsomething,he【K1】_
随机试题
FlexibleStudyfortheFutureUn
[originaltext]W:Simon,howdoesitfeeltoberetired?M:Well,notsobad.W:
CricketCricketisan【T1】______gameplayedbetween2teamstryingtohi
属于航空运输业营销环境中的经济因素包括()A.旅客/货主的消费预期 B.
治疗产后乳少,或见乳房胀满疼痛,或见乳房柔软无胀感,针灸治疗应选用A.乳根、太冲
(2017年5月)()绩效面谈为下属提供了参与考评以及与上级主管进行交流
肠阿米巴病( )。A.溃疡长轴与肠轴平行 B.溃疡呈环形与肠轴垂直 C.溃
下列关于股价移动规律的描述,正确的为()。 A.股票整体市场趋势,是以
肝藏血功能表现在A.贮藏血液 B.调节血流量 C.防止出血 D.固摄血液
窦房结细胞动作电位0期去极化的原因是( )。A.Na+内流 B.Ca+内流
最新回复
(
0
)