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
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
2011-03-01
93
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. Where there are no【C10】______, the rains run in sheets of water off the land,【C11】______the soil with there 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 as much carbon as【C17】______is in the atmosphere.
The world’s forests【C18】______the vast majority of its 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.
【C18】
选项
A、contains
B、are containing
C、contained
D、contain
答案
D
解析
考查时态。句子主语是forests,是复数形式,表示的又是一种一般现象,因此要用现在时态 contain。注意contain不用于进行时态。
转载请注明原文地址:https://kaotiyun.com/show/5Fkd777K
本试题收录于:
公共英语三级笔试题库公共英语(PETS)分类
0
公共英语三级笔试
公共英语(PETS)
相关试题推荐
WhosedogwasGelert?
WhosedogwasGelert?
Whydoesthemanthinkthathisfirstholidayawayfromhomewasn’tveryhappy?
Youhavereceivedtheinvitationbelow,butyouwillnotbeabletoattendtheparty.WritealettertoMr.Smith,explainingth
Likedog’spooponcitypavements,rubbishleftbehindbytouristsatnaturalsitesisdisgusting.Thefunnythingisnobody
LeeBeaty:Your"HealthForLife"articlesgiveexcellentadviceonsimplelifestylechangestoimprovehealth.Wheneverposs
GenerationsofAmericanshavebeenbrought【C1】______tobelievethatagoodbreakfastisimportantforhealth.Eatingbreakfasta
Televisionhaschangedthelifestyleofpeopleineveryindustrializedcountryintheworld.IntheUnitedStates,wheresociolo
Thevalueofmoneyisgoingdown.Whatyoucouldbuyin1970for£20,now,in1979costs£56.40.That’sinflationandnobodylike
Fourteen-year-oldRichieHawleyhadspentfiveyearsstudyingviolinattheCommunitySchoolofPerformingArtsinLosAngelesw
随机试题
在证券投资活动中常用多条移动平均线的组合来进行股市分析,()天的移动平均线反应的是短期趋势。
30岁女性患者,突发尿频、尿急、尿痛2天。体检:体温38.6℃,左肾区叩击痛,尿常规:蛋白(+),白细胞10~15个/HP,红细胞4~10个/HP.假若追问病史,本例在1个月前有相似发作,中段尿培养为变形杆菌,菌落计数>105/ml,本次培养结果仍为变
类风湿关节炎最常累及的关节是
A.悲则气消B.怒则气上C.惊则气乱D.思则气结E.喜则气缓患者心悸、健忘、失眠、多梦,食欲减退、脘腹胀满等症,体现的是()。
A.艾滋病B.流行性斑疹伤寒C.人感染高致病性禽流感D.流行性感冒E.霍乱按甲类管理的乙类传染病是()
中国公司与新加坡公司协议将其货物买卖纠纷提交设在中国某直辖市的仲裁委员会仲裁。经审理,仲裁庭裁决中国公司败诉。中国公司试图通过法院撤销该仲裁裁决。据此,下列选项中哪一项是正确的?
()是用人单位根据劳动者劳动的数量和质量,以货币形式支付给劳动者的工资。
一罐橘子果酱,一罐桃子果酱,再加上一罐什么果酱,便可装成一箱?()
如果该县是自治县,则下列何种做法是正确的?()。
Accordingtothosewhosupportmergers,railwaymonopolyisunlikelybecause______.Accordingtothetext,thecostincreasein
最新回复
(
0
)