首页
登录
职称英语
There are several hypotheses about the origins of the first Neolithic settle
There are several hypotheses about the origins of the first Neolithic settle
游客
2023-08-24
62
管理
问题
There are several hypotheses about the origins of the first Neolithic settlers in Ireland, but most of these contain problems. For instance, there are【B1】______archaeological difficulties about the theory that they came from England. The evidence doesn’t really add up. But there are even greater practical problems about the theory that they came directly from continental Europe. For one thing, it’s not clear just how【B2】______numbers of men and women could have been transported to Ireland to establish a viable population. As you know, the【B3】______economy which existed beforehand was based on small scattered groups. The farming economy would almost certainly have required much larger communities to do all the work needed to plant and tend sufficient crops to【B4】______them through the year.
The early farmers kept various animals, including cattle and sheep. There’s also evidence of pigs, but it is possible that these could have been【B5】______the native wild species. Now, we know from modern farming that if the level of breeding stock falls【B6】______about three hundred females, the future of the species locally is【B7】______. So we must assume that from the beginnings of Neolithic farming the number of breeding sheep would have considerably【B8】______three hundred, and the national cattle herd must have been of a similar size. The question is how these were brought to the area and where they came from.
It’ s usually suggested that the Neolithic settlers used skin-covered boats to transport livestock. But this method would have severely restricted the range of the colonising【B9】______. The sheer volume of animal transport necessary means it’ s【B10】______that this livestock could have been brought from anywhere further than England. [br] 【B7】
There are several hypotheses about the origins of the first Neolithic settlers in Ireland, but most of these contain problems. For instance, there are(26)considerable archaeological difficulties about the theory that they came from England. The evidence doesn’ t really add up. But there are even greater practical problems about the theory that they came directly from continental Europe. For one thing, it’s not clear just how(27)sufficient numbers of men and women could have been transported to Ireland to establish a viable population. As you know, the(28)hunter-gatherer economy which existed beforehand was based on small scattered groups. The farming economy would almost certainly have required much larger communities to do all the work needed to plant and tend sufficient crops to(29)sustain them through the year.
The early farmers kept various animals, including cattle and sheep. There’s also evidence of pigs, but it is possible that these could have been(30)descended from the native wild species. Now, we know from modern farming that if the level of breeding stock falls(31)below about three hundred females, the future of the species locally is(32)at risk. So we must assume that from the beginnings of Neolithic farming the number of breeding sheep would have considerably(33)exceeded three hundred, and the national cattle herd must have been of a similar size. The question is how these were brought to the area and where they came from.
It’ s usually suggested that the Neolithic settlers used skin-covered boats to transport livestock. But this method would have severely restricted the range of the colonising(34)fleets. The sheer volume of animal transport necessary means it’ s(35)unlikely that this livestock could have been brought from anywhere further than England.
选项
答案
at risk
解析
考查at risk固定搭配,意为“处于危险之中”。
转载请注明原文地址:https://tihaiku.com/zcyy/2952658.html
相关试题推荐
[originaltext]Manypeopletakeseveralmedicinestotreatdifferentconditi
[originaltext]Manypeopletakeseveralmedicinestotreatdifferentconditi
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Theeconomiccostsofnoisetosocietyareseveral.Airports
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
[originaltext]Duringastateofdeeprelaxation,severalphysiologicalchan
随机试题
Comedy’slegendaryMontyPythonmembers—youknow,"I’malumberjack(伐木工人)and
StreetArtinLA.InLosAngeles,artistsareuncoveringsomeofthecity’s
WhentheSpanishArmadawasdefeated,therulerofEnglandwas______.A、QueenEl
______wasanIrishdramatistandwriterwhobecameanactivememberoftheFabi
[originaltext]Today,wewillfocusonsolotravelling.Whileit’sfuntotravel
消防控制室应能显示气体灭火系统防护区域中的气体喷头、防火门(窗),防火阀、通风空
税务师事务所的()对质量控制负有管理责任。A、合伙人 B、执业税务师 C、
细胞培养技术全过程涉及到诸多环节,请问这关键的一点是下列哪一点()A.细胞传代
以下关于防坠、防砸的安全规定错误的是()。A.天井、溜井、漏斗口等处必须设置标志
根据权责发生制原则,以下属于本期的收入和费用的是()。A、支付明年的房屋租金
最新回复
(
0
)