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
Dinosaurs were reptiles which became extinct about 65 million years ago. The most intriguing question about dinosaurs has always
Dinosaurs were reptiles which became extinct about 65 million years ago. The most intriguing question about dinosaurs has always
admin
2013-01-22
149
问题
Dinosaurs were reptiles which became extinct about 65 million years ago. The most intriguing question about dinosaurs has always been "【21】did they die out?" There is no simple answer to this question,【22】many hundreds of scientists are studying the problem. They are not studying the extinction of the dinosaurs【23】, but the whole question of extinction. Many other plants and animals have【24】in the past, and it is important to understand【25】this happened. Having this information could help save many species that are【26】in the modern world. Humans are causing extinctions now, because of pollution and other damage【27】the environment. Maybe the dinosaurs can tell us how to save the earth today,【28】their extinction 65 million years ago! Some of the early dinosaur scientists, 100 years ago, thought the dinosaurs died out because the【29】changed, and they could not breathe. Others thought that the dinosaurs disappeared simply because they became too big.
They were【30】to move and could not find enough food【31】One theory is that a huge killer meteorite【32】the earth. Some scientists【33】that the extinction of dinosaurs was possibly due to rapid【34】of the planet’s climate. Perhaps huge amounts of lava pours out of volcanoes in India. This sent up vast【35】of dust that blacked out the sun, and made the earth icy cold.
选项
A、themselves
B、by themselves
C、alone
D、only
答案
D
解析
下文提到科学家想通过研究恐龙的灭绝找出拯救现代濒临灭绝的动植物的方法。联系上下文可以肯定答案是only“仅仅,只不过”。
转载请注明原文地址:https://www.kaotiyun.com/show/6b1O777K
0
考博英语
相关试题推荐
On9December,JamesJoyceexperiencedoneofthosecoincidenceswhichaffectedhim______atthetimeandwhichlaterbecamemate
Totalinvestmentsforthisyearreached$56million,andtoputthisinto_______investmentsthisyearwilldoublethosemadein
Hurricanesareviolentstormsthatcausemillionsofdollarsinpropertydamageandtakemanylives.Theycanbeextremelydange
A、legallyB、illegallyC、conventionallyD、unconventionallyB本题考核的知识点是:对应成分分析——and对应+宾补(相当于主系表的修饰结构)。根据and可以得到theMoroccanoccupat
Theenergycrisis,whichisbeingfeltaroundtheworld,hasdramatizedhowthecarelessuseoftheearth’sresourceshasbrough
在美国人经常光顾的那些欧洲国家,友谊跟其他更随意的人际关系有很大的区别,友谊与家庭生活的关联方式也各不相同。
Thelocalpoliceareauthorizedto____anyone’smovementsastheythinkfit.
Theearthiswitnessinganurbanrevolution,aspeopleworldwidecrowdintotownsandcities.In1800onlyfivepercentofthew
BackinSeattle,aroundthecornerfromtheDiscoveryInstitute,StephenMeyerofferssomepeer-reviewedevidencethattheretruly
随机试题
________把“三个代表”重要思想确立为党的指导思想,明确提出了全面建设小康社会的目标。
女性,27岁,主诉:近1个月全口牙龈增生,影响进食,有牙龈自动出血史。其最不可能的诊断是
某猪场的商品猪群突发高热、皮肤发绀、结膜炎;初期便秘,后发生腹泻;病猪行动呆滞、有的后肢麻痹;公猪包皮内有恶臭的浑浊液体;死亡猪剖检可见全身淋巴结肿大出血、肾脏有密集出血点。该猪群发生疫病可能是
在下列医德情感的描述中,错误的是
妇科病区彭某为外来务工者,21岁,胶鞋制作工,体格瘦小,人工流产3次,因白带异常就诊,经查确诊患子宫颈癌。近年发现子宫颈癌的发病可能的因素还有
田某认为区人社局记载有关他的社会保障信息有误.要求更正,该局拒绝。田某向法院起诉。下列哪些说法是正确的?(2012—卷二—81,多)
下列选项中,不属于资产负债表中反映的账户是()。
(2011年考试真题)根据劳动合同法律制度的规定,下列情形中,用人单位与劳动者可以不签订书面劳动合同的是()。
2013年12月26日,中国社科院和社会科学文献出版社共同发布的《社会蓝皮书》显示,2012年,我国城镇居民人均可支配收入达24565元,是1978年的11.5倍,年均增长7.4%,农村人均纯收入达到7917元,是1978年的11.8倍,年均增长7.5%,
Thefollowingisaposter.Afterreadingit,youwillfind3questionsorunfinishedstatements,numbered45to47.Foreachque
最新回复
(
0
)