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
Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a
Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a
admin
2015-03-26
37
问题
Global warming is already cutting substantially into potential crop yields in some countries—to such an extent that it may be a factor in the food price【C1】______ that have caused worldwide stress in recent years, researchers suggest in a new study.
Wheat yields in recent years were down by more than 10 percent in Russia and by a few percentage points【C2】______ in India, France and China compared with【C3】______ they probably would have been without rising【C4】______, according to the study.
Corn yields were【C5】______ a few percentage points in China, Brazil and France from what would have been【C6】______, said the researchers, whose findings were published in Friday’s【C7】______ of the journal Science.
Some countries saw small gains from the temperature increases, however. And in all countries, the【C8】______ carbon dioxide that humans are【C9】______ into the air acted as a【C10】______ that encouraged plant growth,【C11】______ some of the losses from rising temperatures caused by that same greenhouse gas.
【C12】______, the study’s authors found that when the gains in some countries were weighed【C13】______ the losses in other countries, the overall global【C14】______ of climate change has been small so far: losses of a few percentage points for wheat and corn from what they would have been【C15】______ climate change. The general impact on production of rice and soybeans was【C16】______, with gains in some regions entirely counterbalancing losses in others.
【C17】______ the authors of the study pointed out that temperature increases were expected to【C18】______ in coming decades, making it likely that the challenges【C19】______ food production will grow in a era when demand is expected to【C20】_____ sharply.
【C17】
选项
A、So
B、Hence
C、But
D、And
答案
C
解析
句意关系题。根据这句话后半部分的提示,粮食生产可能会受到越来越大的挑战,与前文得出的影响不大的结论相反,故选but。
转载请注明原文地址:https://kaotiyun.com/show/JVHK777K
0
专业英语四级
相关试题推荐
WWW,aWideandWonderfulWorldMostlargecompaniesalreadyprovideInternetconnectionstothedesktopandtheiravailabi
WWW,aWideandWonderfulWorldMostlargecompaniesalreadyprovideInternetconnectionstothedesktopandtheiravailabi
Theglobalfinancialcrisisof2008hitconsumershard.Twoyearslater,andthey’restillreeling.Spendingisdownacrossthe
Tosomeextent,theprincipleofsecrecyhasbeen______.
OnJan.1,2002,twelveEuropeanUnioncountriesintroducedEurocoinsandnotes,______meansthat300millionpeoplebeganto
Myaunttriedherbestto______thesituation,butthedamagewasalreadydone.
Rumorswerealreadybeginningto______thattheprojectmighthavetobeabandoned.
随机试题
任何一项发盘,其效力均可在一定条件下终止。发盘效力终止的原因,一般包括以下()方面。
()是对征收面广、流动性大、季节性强、税源零散的纳税人采用的一种征管形式。
()是物业管理市场的需求主体。
个人本位论的代表人物有()
Thefollowingparagraphsaregiveninawrongorder.ForQuestions41-45,youarerequiredtoreorganizetheseparagraphsintoa
Disruptivestudentsareaheadacheforpublicschools.Theydistractfromlessons,skipclass,andoftenbringdownthegraduati
(2009年上半年)根据布线标准ANSI/TIA/EIA-568A,综合布线系统分为如下图所示的6个子系统。其中的①为(13)子系统、②为(14)子系统、③为(15)子系统。(13)
数据挖掘是近年来出现的一种信息分析工具,源数据先后经过______就是知识。
Whatcanwelearnaboutthewoman’sson?
ThechildrenaremakingsomuchnoisethatIcan’thear______heissaying.
最新回复
(
0
)