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
2023-06-26
68
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/2783615.html
相关试题推荐
[originaltext]Today,airtravelisfarsaferthandrivingacaronabusym
[originaltext][23]Manydeathsfromhomefiresaretheresultofburnsandpani
[originaltext][23]Manydeathsfromhomefiresaretheresultofburnsandpani
[originaltext][23]Manydeathsfromhomefiresaretheresultofburnsandpani
[originaltext]Thetwentiethcenturyhasbroughtwithitmanyadvances.(7)W
[originaltext]Thetwentiethcenturyhasbroughtwithitmanyadvances.(7)W
[originaltext][22]Mr.Stevensonwastheownerofageneralappliancestore
[originaltext][22]Mr.Stevensonwastheownerofageneralappliancestore
[originaltext]Approximately90%ofpeopleintheworldarenaturallyright-
[originaltext]Approximately90%ofpeopleintheworldarenaturallyright-
随机试题
"Congratulations,Mr.Cooper.It’sagirl."Fatherhoodisgoingtohave
[audioFiles]audio_eusm_j01_050(20099)[/audioFiles]A、Themanwillnotneedthet
TheTawnyOwlMost【L31】________owlspeciesinUKStronglynocturnalHabitatMain
(1)MarkTwain’sinstructionswerequiteclear:hisautobiographywastorema
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性: A
建设部.国家工商行政管理局2000版《商品房买卖合同示范文本》的第一条是()。
我国先秦时期,主张“有教无类”,倡导“因材施教”的教育家是()。A.孔子 B.
患者女,38岁。经常胃脘部隐痛,喜温喜按,时时泛吐清水,纳差神疲,大便溏,舌淡,
下列关于证券资产组合风险的表述中,正确的有()。A.证券资产组合中的非系统风险
腰椎间盘突出症() A.托马斯征阳性 B.拾物试验阳性 C.直腿抬高试验和
最新回复
(
0
)