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
Agriculture is undoubtedly the most important sector in the economies of most non-oil exporting African countries. It【C1】______
Agriculture is undoubtedly the most important sector in the economies of most non-oil exporting African countries. It【C1】______
admin
2013-04-15
48
问题
Agriculture is undoubtedly the most important sector in the economies of most non-oil exporting African countries. It【C1】______ about 30% of Africa’s GDP and contributes【C2】______ 50% of the total export value,【C3】______ 70% of the continent’s population depending on the sector for their【C4】______ . Production is subsistence in nature with a high【C5】______ on the rain. The debate on climate change and its impacts on agriculture is【C6】______ very crucial to the very survival of the continent and its people. The continent is particularly【C7】______ to climate change because it includes some of the world’s poorest nations.
The climate in Africa is【C8】______ tropical in nature, which is broadly【C9】______ into three main climatic zones:【C10】______ equatorial, dry, and temperate(温带). Within these zones, altitude and other localized【C11】______ also produce distinctive regional climates.
Climate change,【C12】______ indicated by prolonged drought is one of the most serious climatic【C13】______ affecting the agricultural sector of the continent. As most of the agriculture activities in African countries hinges on rain fed, any adverse changes in the climate would likely have a【C14】______ effect on the sector in the region.
【C15】______ changes in the climate may affect the whole continent, its【C16】______ may vary across the continent. In northeast Africa, more intense dry periods and shorter wet seasons are expected to affect even huge river systems such as the Blue Nile, leading to serious water shortages and【C17】______ consequences to the agriculture and forestry sectors throughout the region. East and Central Africa will also see its agricultural【C18】______ decline. Coastal areas may also be affected by rising sea levels and intrusion of salt water into inland freshwater resources. The staple food for the region, maize, is particularly susceptible to drought. Wetlands of international importance and wildlife are also under threat from【C19】______ in Southern Africa. Climate change, therefore, is expected to worsen the food supply,【C20】______ , exacerbate the widespread poverty in the region.
【C11】
选项
A、changes
B、difference
C、variables
D、variation
答案
C
解析
名词辨义题。本处意思是:在这些温度带中,海拔和地区变量也会产生独特的地区气候.所以选择C variables“变量”。
转载请注明原文地址:https://kaotiyun.com/show/f7I7777K
0
大学英语六级
相关试题推荐
UNofficials______betweentherebelfightersandthegovernment.
Formanyworkingmothers,balancingthedemandsofchildrenandjobisa(n)________challenge.
A、Stoptobuyanumbrella.B、Runquicklythanusual.C、Findshelterfromrain.D、Walkinnormalspeed.D推理判断题。短文开头提到古语忠告说在雨里跑比走会
A、Timealonewilltell.B、Timegoesbyquickly.C、Timewillshowwhatisright.D、Timemakesoneforgetthepast.B短文开头部分提到Fifty
A、Heistoosympathetictowardsher.B、Heshouldchoosehisowncareer.C、Hewillsurelybeagooddoctor.D、Hehasdecidedtos
SmokeandMinorsMoreteenagegirlssmokethanboys.Coulditbebecausethetobaccoindustryplaysontheirdesiretolookfun,
A、Hewouldhavesufferedalotfromthename.B、Hewouldhavebeenthoughtofasacriminalforever.C、Hewouldhavebeensenten
A、OntheKing’sseat.B、InfrontoftheKing.C、Infrontofeveryone.D、Alongwayfromtheimportantguests.B选项均为表示地点状语的词组可知,本
A、Boring.B、Impressive.C、Intensive.D、Inefficient.D文章谈论的是上周联合国在罗马举行的世界粮食安全峰会。文中提到,对于越来越多的人面临饥饿这一问题,这次会议只出台了有限的措施。由此可见,作者认为三天的会
DaretoDreamOurdreamsatnightmayaffectourlives(andviceversa)morethanweeverrealized,saysnewresearch.For1
随机试题
在小儿年龄分期中,幼儿期是指
CA1092型汽车驻车制动鼓工作表面磨损起槽不得大于0.05mm。()
Mostofthepoemsin______singofthe"en-masse"andtheselfaswell.
下列有关软产道的变化特点,正确的是
根据《关于城镇医药卫生体制改革的指导意见》,把医院的门诊药房改为药品零售企业,独立核算,照章纳税,要解决的主要问题是
车辆停放方式按车身纵方向与通道的夹角关系有()
PowerBuilder所提供的对象不包括______。
A、Signhisnameforthefan.B、Fillinanapplicationform.C、Exchangegiftswithhisfriends.D、Getapurchaserefunded.D对话中男士
【B1】【B5】
AdetailedandthoroughresearchprojectundertakenbytheOpenUniversityrecentlyreportedthattheirevidenceappearstoshow
最新回复
(
0
)