首页
登录
职称英语
Dinosaurs were reptiles which became extinct about 65 million years ago. The
Dinosaurs were reptiles which became extinct about 65 million years ago. The
游客
2025-04-22
22
管理
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. [br]
选项
A、at danger
B、under threat
C、dangerous
D、threatening
答案
B
解析
本句话的意思是:掌握了这些信息,科学家就可以帮助拯救现今面临灭绝危险的物种了。面临危险要用词组under threat。
转载请注明原文地址:https://tihaiku.com/zcyy/4049376.html
相关试题推荐
Itisnotunusualforchiefexecutivestocollectmillionsofdollarsayear
Itisnotunusualforchiefexecutivestocollectmillionsofdollarsayear
Itisnotunusualforchiefexecutivestocollectmillionsofdollarsayear
Thetimberrattlesnakeisnowontheendangeredspecieslist,andisextinctin
EvenifIwonamillion-dollarlottery,Iwouldcontinuetolive______.A、subtly
Onehundredboatsbearingonemilliondesperateuninvitedimmigrantssetsail
Onehundredboatsbearingonemilliondesperateuninvitedimmigrantssetsail
Onehundredboatsbearingonemilliondesperateuninvitedimmigrantssetsail
Onehundredboatsbearingonemilliondesperateuninvitedimmigrantssetsail
Aswelfarereformhas____millionsofsinglemotherslikePatinointotheworkfor
随机试题
MergersandAcquisitionsMergersandAcquisitionsreferst
ThediscoveryoftheAntarcticnotonlyprovedoneofthemostinterestingof
设某单总线LAN,总线长度为1000m,数据率为10Mb/s,数字信号在总线上的
教师应如何运用记忆规律促进学生的知识保持?
急性淋巴细胞性白血病,缓解后突然出现头痛不适,测脑压220mmHO,蛋白增高,脑
简述幼儿园教育目标制定的依据。?
A.不良反应 B.毒性作用 C.变态反应 D.后遗效应 E.特异质反应与
有价证券的特征包括()等方面。 A.期限性B.风险性C.收益性,D.流
男孩,1岁半,发热伴咳嗽5天,加重伴呼吸困难1天,曾予青霉素治疗3天,查体:T
施工企业在工程投标阶段编制的估算成本计划是一种()成本计划。A.作业性 B.实
最新回复
(
0
)