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
Chocolate could soon be a thing of the past, after scientists warned that the cacao plant, from which chocolate is made, could b
Chocolate could soon be a thing of the past, after scientists warned that the cacao plant, from which chocolate is made, could b
admin
2019-09-25
47
问题
Chocolate could soon be a thing of the past, after scientists warned that the cacao plant, from which chocolate is made, could be【C1】ext________within 32 years.
Over half of the world’ s chocolate comes from just two countries in West Africa—Cote d’ Ivoire and Ghana— where the temperature, rain, and humidity provide the perfect【C2】con________for cacao to thrive.
But the threat of rising temperatures over the next three decades, caused by climate change, is expected to result in a loss of moisture from the ground, which scientists say could 【C3】________(upset) this delicate balance.
According to the US National Oceanic and Atmospheric Administration, a temperature rise of just 2.1 degrees【C4】ce________ could spell an end for the chocolate industry worldwide by 2050.
Farmers in the region are already looking at moving cacao production areas thousands of feet uphill into mountainous terrain—much of which is currently【C5】________(preserve) for wildlife.
But a move of this scale could destroy ecosystems that are already under threat from illegal farming and【C6】def________.
Part of the problem, according to Doug Hawkins from London-based research firm Hardman Agribusiness, is that cacao farming methods have not changed for hundreds of years.
"Unlike other tree crops that have benefited from the development of modern, high yielding cultivars and crop management techniques to realize their genetic potential, more than 90% of the global cacao crop is produced by smallholders on subsistence farms with unimproved planting material, and all the indicators are that we could be looking at a chocolate【C7】________ (deficit) of 100,000 tonnes a year in the next few years. " Hawkins told Mail Online.
Now scientists at the University of California at Berkeley have teamed up with American confectionery company Mars, in an attempt to keep chocolate on the menu.
Using the【C8】cont________ gene-editing technology known as CRISPR they are trying to develop a version of the cacao plant capable of surviving—and thriving—in dryer, warmer climates.
CRISPR has received widespread media attention. However, Jennifer Doudna, the UC Berkeley geneticist who invented CRISPR, thinks its【C9】________useful effects will be on plants rather than humans. "Personally, I’d love a tomato plant with fruit that stayed on the vine longer," Doudna, who is an avid gardener, told Business Insider.
If the team’ s work on the cacao plant is successful, it could remove the need for farmers in West Africa to【C10】rel________to higher ground, and perhaps even allow cacao to be grown elsewhere in the world.
【C3】
选项
答案
upset
解析
该句的意思是“由于气候变化,未来30年气温上升的威胁预计将导致地面水分流失,科学家们表示,这可能会打破这种微妙的平衡”。根据句意和单词提示,故填入upset。
转载请注明原文地址:https://kaotiyun.com/show/Ff8K777K
本试题收录于:
B类竞赛(英语专业本科专科)题库大学生英语竞赛(NECCS)分类
0
B类竞赛(英语专业本科专科)
大学生英语竞赛(NECCS)
相关试题推荐
Goodmannersandetiquette(礼仪)arenotcomplicated.Anyonecan【D1】______courtesyandconsiderationforothers—thestuffofwhich
Goodmannersandetiquette(礼仪)arenotcomplicated.Anyonecan【D1】______courtesyandconsiderationforothers—thestuffofwhich
Scientistsclaimthatin50year’stime,therewillbecomputersthat【M1】______arelikelytobeevenmoreintelligentthanhum
TheAustraliaflagusesthreeprominentsymbols:theUnionFlag,theCommonwealthStarandtheSouthernCross.TheUnionFlagis
Inmyopinion,allthesespecialoffersarethereto______peopleintobuyingthingstheydon’treallywant.
Whichofthefiguresbelowthelineofdrawingsbestcompletestheseries?
Thespokesmanadmittedthatthegovernment’sthoughtlesspolicyhadcausedacrisisthat______.
WhentheMonaLisawasstolenfromtheLouvreMuseumin1911,【D1】______aroundtheworldclaimedthatthemostfamouspainting
在大城市寻找梦想的年轻人承受着巨大的生活压力。(8uffer…from)
Surfingissomethingpeopleoftengethookedonaftertryingitafewtimes.Formanysuffersitismuchmorethanahobby—they
随机试题
A.血氨升高B.血清胃泌素升高C.血清淀粉酶升高D.胃酸缺乏E.血清胆红素升高肝性脑病
女,73岁,因不自主震颤8年而就诊,检查肢体远端震颤明显,肌张力增强,肢体活动少,始动困难,面部表情少,瞬目频率慢,行走步态不稳,呈紧迫、细碎、拖地状。老年人此病最常见病因是
采用翻瓣去骨术拔除残根时,切口要求描述哪项是错误的
A.清瘟败毒饮加减B.黄连温胆汤加减C.生脉散合参附汤加减D.参芪地黄汤加减E.六味地黄丸加减急性肾衰竭气脱津伤证的治疗方剂为()
城市房屋拆迁过程中,应当向公证机关办理证据保全的有()。
(2007年卷二第10题)根据知识产权海关保护条例及其实施办法的规定,知识产权权利人向海关总署申请知识产权备案的应当办理下列哪些手续?
下图是“2005年我国东部沿海某市各圈层间人口净迁移模式图”,读图完成下列问题。由图可知,该市()。
在动机理论中,P=D×H×K是()理论。
[*]
•Youwillhearanotherfiverecordings.•Foreachrecording,decidewhatthespeakeristalkingabout.•Writeoneletter(A--
最新回复
(
0
)