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
Like all animal species, plant species must spread their offspring to suitable areas where they can grow and pass on their paren
Like all animal species, plant species must spread their offspring to suitable areas where they can grow and pass on their paren
admin
2010-01-18
42
问题
Like all animal species, plant species must spread their offspring to suitable areas where they
can grow and pass on their parent’s genes.
Young animals generally spread by walking or flying. 【M1】_____
Because plants don’t have that ability,
they may somehow hitchhike. Some plant seeds scatter by 【M2】_____
blowing in the wind or floating on water. Many other plant species, though, trick an animal into
carrying their seeds. How do they do? They enclose them within a tasty fruit and advertise the fruit’s
ripeness by its color or smell.
The hungry animal collects and swallows the fruit, walks or flies off, but 【M3】_____
later spits out the seeds somewhere far from its parent tree.
Seeds can thereby be carried thousands 【M4】_____
of miles. It may surprise you to learn that plant seeds can resist digestion. In fact, some seeds
actually require passage through an animal’s body before they can grow. Wild strawberries offer a
good example of hitchhiking tactic.
When strawberry seeds are still young and not yet ready to be 【M5】_____
planted, the surrounding fruit is green, sour, and hard.
When the seeds final mature, the berries turn 【M6】_____
red, sweet, and tender. The change in the berries’ color serves as a signal to birds which then eat the strawberries, fly off, and eventually spit out the seeds.
Naturally, strawberry plants doesn’t set out 【M7】_____
with a conscious intent of attracting birds only when
their seeds were ready to be dispersed away. 【M8】_____
Nor did birds set out with the intent of planting strawberries. Rather, strawberry plants evolved
through natural selection.
The sweeter and reder the final strawberry, the more birds spread its ripe 【M9】_____
seeds;the greener and more sour the young strawberry,
the birds destroyed the seeds by eating 【M10】_____
berries before the seeds were ready.
【M8】
选项
答案
away改成away
解析
away在此处是多余的,故去掉。
转载请注明原文地址:https://kaotiyun.com/show/GAvO777K
0
专业英语八级
相关试题推荐
A、Seldomarenewscientifictheoriesrejectedquickly.B、Newscientifictheoriesareoftenslowtobeaccepted.C、Scientistsrar
A、Inthedegreeswhicharereceivedinauniversity.B、Intheagewhenastudententersauniversity.C、Inthecourseswhichare
A、Theplumbersaidonthephonehewouldgettheleakingfaucetassoonaspossible.B、Thefaucetdidn’tstopleakinguntilthe
Mostgrowingplantscontainmuchmorewaterthanallothermaterialscombined.C.R.Barneshassuggestedthatitisaspropert
Somepeoplebelievethatinternationalsportcreatesgoodwillbetweenthenationsandthatifcountriesplaygamestogetherthey
A、Theworld-famousOpenUniversity.B、ThechangingeducationalsysteminBritain.C、FurtherandcontinuouseducationinBritain.
A、Traininggiventomusictherapists.B、Howmusicpreventsdisease.C、Studiesonthebenefitsofmusic.D、Howmusicianscreatem
HungerandfoodinsecurityhavebeencalledAmerica’s"hiddencrisis."Atthesametime,andapparentlyparadoxically,obesity
A、ThecommissionhasspenttoomuchonhumanitarianoperationsinthePalestinianTerritorieslastyear.B、TwoUNReliefandWor
ThethemeofThanksgivinghasalwaysbeen______.
随机试题
喷油泵试验台根据传动系统变速的方式不同,可分为机械式试验台、_______、_______和_______。
患者,女,24岁。主诉:上唇部肿胀。既往史:起床时偶然发现上唇部肿胀,人睡前上唇并无异常感觉。查:以上唇为中心可见弥漫性肿胀,肿胀处按之可触及硬结,无疼痛等自觉症状。肿胀持续数小时后完全消失。实验室检查无明显异常。本病的病因是
不定积分
会计从业资格考试报考基本条件包括()。
某期货公司的监事孙某因故离任,期货公司未对其进行离任审计。对此,中国证监会及其派出机构可以()。
下列项目适用17%税率的是()。
"Howdidyoudoit,Dad?Howhaveyoumanagedtonottakeadrinkforalmost20years?"Ittookmealmost20yearstohavethe【C1
望洋兴叹:河伯
美国心理学家马斯洛认为人类的需求可分为五个层次,其由低到高的顺序为______。
Therewerefewroadsvisiblebelow,mosttransportationinNepalbeingbyfootalongancienttrailsthatconnectandbindtheco
最新回复
(
0
)