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
55
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
TheAmericaneconomicsystemisorganizedaroundabasicallyprivateenterpr
Baby-NamingTrends[A]Overthelastfiftyyears,Americanparentshaver
Forthispart,youareallowed30minutestowriteacompositionaboutyouropin
根据《资产评估法》规定,资产评估专业人员同时在两个以上评估机构从事业务,情节严重
超额配售选择权中,发行新股数量的计算公式是()。A:本次发行的新股数量=发行包
为保障出租车司机和乘客安全,某市交通部门要求全市出租车必须安装录像和录音设备,对
请根据税务行政复议的有关规定,回答下列问题: (1)纳税人对税务机关作出的补缴
下列关于加筋土挡土墙工程的叙述错误的是()。A.加筋土挡土墙适用于填方路段
除外哪一项,均为低渗性脱水的特点A.失钠比例大于失水 B.主要为细胞外液减少
女性,45岁,左乳房外上象限4cm×3cm肿块,距乳头5cm,可推动,但是病人双
最新回复
(
0
)