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
专升本
All over the world, forests are safeguarding the health of the planet itself. They do this【C1】______protecting the soil, providi
All over the world, forests are safeguarding the health of the planet itself. They do this【C1】______protecting the soil, providi
admin
2017-07-18
29
问题
All over the world, forests are safeguarding the health of the planet itself. They do this【C1】______protecting the soil, providing water and【C2】______the climate. Trees【C3】______soil to mountainsides. Hills【C4】______the trees have been felled lose 500 times as【C5】______soil a year as those with trees.
Trees catch and【C6】______rainwater. Their leaves break the impact【C7】______the rains, robbing them of【C8】______destructive power. The roots of trees allow the water to go into the soil,【C9】______gradually releases it to flow down rivers and refill ground-water reserves.【C10】______there are no trees, the rains run in sheets of water off the land,【C11】______the soil with them. Land【C12】______with trees and other plants【C13】______20 times more rainwater than【C14】______earth. As they grow, trees absorb carbon dioxide, the main【C15】______of the "greenhouse effect" , which【C16】______irreversibly to change the world’ s climate. Together, the world’ s trees, plants and soils contain three times【C17】______much carbon as there is in the atmosphere.
The world’ s forests contain the vast majority of【C18】______animal and plant species. The tropical rainforests【C19】______have well over half of them,【C20】______they cover only about 6% of the Earth’ s land surface.
【C15】
选项
A、reason
B、effect
C、purpose
D、cause
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/G8iC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
AirportbaggagescreenersintheUSA,displayingseizedchainsaws,machetesandknives,【21】travelerstochecktheirluggagefor
OfallBarryH.Landau’sanecdotesabouthisfriendshipswithpresidentialdogs,perhapsthebestistheoneaboutthetimethe
A.Itdoesn’tmatterB.HowcomeC.You’rewelcome
Youhavebeenbadlyinjuredinacaraccident.Itisnecessarytogiveyouabloodtransfusionbecauseyoulostagreatdealof
Youreallyhavetogetveryoldbeforeyourealizeyou’reold.I’minmymiddlefiftiesandIdon’tfeel【21】yet.However,someti
Sheknewnothingabouthisjourney______thathewaslikelytogotoAfricaforthreemonths.
Sincetheroadiswetthismorning,______lastnight.
Nearlyeveryoneenjoyschicken,andthemostfamousnameinchickenisKentuckyFriedChicken.Mr.Sanders,themanwhostarted
Banksarenotordinarilypreparedtopayoutallaccounts:theyrelyondepositors(储户)nottodemandpaymentallatthesametime
Havingbeenattackedbyterrorists,______.
随机试题
借贷记账法中,应登记下列账户的贷方的有()。
下列抗结核治疗方法哪些是正确的()
A.环咽肌收缩而成B.由主动脉弓压迫食管所致C.由左主支气管压迫食管所致D.由右主支气管压迫食管所致E.食管穿过横膈裂孔所致食管第4狭窄处
砂仁入汤剂宜
简述D/P和D/A的含义及它们的主要区别
通常情况下,资金的时间价值被认为是没有()条件下的社会平均资金利润率。
智育是授予学生系统的__________、__________,发展他们的智力和与学习有关的__________的教育。
科学研究表明,冬雾中除水分和其他一些不具有自主运动的微生物外,主要由傅氏病原体组成,这种病原体多为细胞微生物,具有自主运动和主动感染能力。傅氏病原体侵入人体内,潜伏期可达一至五年。身体强壮者,它能使之患感冒、头痛等外感疾病。身体衰弱者,可引发高血压、冠心病
设f(x)在x=a处可导,则=__________
在CD光盘上标记有“CD-RW”字样,“RW”标记表明该光盘是()。
最新回复
(
0
)