首页
登录
职称英语
[originaltext] Birds spend so much time smoothing, cleaning and arranging th
[originaltext] Birds spend so much time smoothing, cleaning and arranging th
游客
2024-01-27
57
管理
问题
Birds spend so much time smoothing, cleaning and arranging their feathers that it’s not surprising this behaviour, called preening, is associated with pride and vanity. But stop a minute and think about what feathers do for a bird. Besides allowing it to fly, feathers keep the bird warm in the winter and cool in the summer. They shed water in the rain, and they are used to communicate with other birds of the same species. A bird with dirty feathers will not live long.
Birds use their beaks to clean and straighten their feathers and to spread oil over them. They get the oil from their skin.[17]The oil helps keep the feathers waterproof and flexible.
Birds also like to take baths to keep clean. They don’t always take them in water.[18]Chickens, for instance, like nothing better than to scratch up some dust with their feet and then lie down and flap the dust all over their bodies. This probably helps get rid of parasites on their skin. A quick shake then sends the dust flying from their feathers, leaving them clean and comfortable.
16. What is the passage mainly talking about?
17. What is the function of the oil on bird’s skin?
18. What do chickens use to take baths?
选项
A、Keeping its feathers waterproof.
B、Keeping its feathers cool in summer.
C、Helping communicate with the same species.
D、Keeping its feathers clean.
答案
A
解析
细节题。文中提到,鸟类皮肤上的oil(油脂)帮助羽毛waterproof(防水),并使它们flexible(灵活自如),故答案为A)。
转载请注明原文地址:https://tihaiku.com/zcyy/3399881.html
相关试题推荐
[originaltext]TeenagerswhodobetterthanexpectedintheirA-levelshavel
[originaltext]TeenagerswhodobetterthanexpectedintheirA-levelshavel
[originaltext]Birdsspendsomuchtimesmoothing,cleaningandarrangingth
[originaltext]Birdsspendsomuchtimesmoothing,cleaningandarrangingth
[originaltext]Crazeddoggyparentswilleagerlytellyouthattheirdogsare
[originaltext]Crazeddoggyparentswilleagerlytellyouthattheirdogsare
[originaltext]Crazeddoggyparentswilleagerlytellyouthattheirdogsare
[originaltext]Here’saparableoftwoyoungchildrenandawhite-beardedwis
[originaltext]Here’saparableoftwoyoungchildrenandawhite-beardedwis
[originaltext]M:I’vebeenwaitinghereintheconferenceroomfortenminutes
随机试题
Knowledgemaybeacquiredthroughconversation,watchingtelevisionortrave
Formostpeople,shoppingisstillamatterofwanderingdownthestreetor
WehavequiteabitofinformationaboutancientEgyptianmedicine.Doctors’
Formanyyears,wehavebeenledtobelievethataperson’sintellectualint
Innovation,theeffectiverecipeofprogress,hasalwayscostpeopletheirj
提高药物制剂稳定性的工艺方法有__________、__________、___
DIC高凝期出现()。A.血液不易抽出,血液易凝固 B.皮肤、注射部位出血
母线及接头长期允许()不宜超过70℃。工作温度$;$最高温度$;$最低温度$;$
市场的形成和运转需要具备的条件有( )。A.明晰的产权 B.完善的规则 C
下列定额中,属于企业定额性质的是()。A.施工定额 B.预算定额 C.概算
最新回复
(
0
)