首页
登录
职称英语
[originaltext] We don’t know how the first fire was made. Early fires on the
[originaltext] We don’t know how the first fire was made. Early fires on the
游客
2024-01-27
54
管理
问题
We don’t know how the first fire was made. Early fires on the earth were certainly caused by nature, not by man. Some were caused by lightning in a storm; others, perhaps by one hot material which came out of a volcano. Quite possibly, at times, the heat of the sun set light to some dry grass or leaves. At first, man, like other animals, was probably afraid of fire. He saw that fire could destroy a forest; he knew that fire could hurt his body. So great was the power of fire that he feared it and worshipped it Gradually, however, with his better powers of thinking, he overcame his fear. Probably he overcame most of his fear when he discovered how to make fire for himself. Throughout the ages he has learned more about fire, how to control it, and how to use it in many ways. Now fire is no longer a master or a god, it is a servant. Again, at some early date, man found how fire could be used to make certain metals from rocks. Some time later, he found out how to make the metal which we now call bronze. This is a mixture of copper and tin. Bronze was a very useful metal. It was hard and tough, but he could shape it by hammering(probably with heavy stones). He could make a tool with a sharp edge for cutting. It isn’t so easy to get iron from its ore and this metal was probably not discovered until very much later.
16. What do we know about early fires on the earth?
17. What was probably man’s response to the first fire?
18. What is bronze made of?
选项
A、Copper and iron.
B、Copper and tin.
C、Iron and tin.
D、Copper and zinc.
答案
B
解析
短文提到:“过了一些时候,人类知道了如何制造我们现在称之为青铜的东西。青铜是铜和锡的合金。”B正确。具体的物质名词选项,表明本题问细节而非大意。选项是由几个关键词的不同组合构成的,听到相关内容做好标记则必然得到正确答案。听到什么选什么。
转载请注明原文地址:http://tihaiku.com/zcyy/3398768.html
相关试题推荐
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Someoftheplanet’smostpreciousanimalsandplantsaredis
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Overtheyears,newtechnologieshavechangedfarming.Change
[originaltext]Beethovenprobablybegantogodeafin1797,buthetriedto
[originaltext]Shorttrackspeedskatingisonlyabout100yearsoldandap
[originaltext]Shorttrackspeedskatingisonlyabout100yearsoldandap
[originaltext]Televisionnowplayssuchanimportantpartinsomanypeople
[originaltext]InSwedenandNorway,thepracticeofsplittingthebillinr
随机试题
Thepurposeofthemeetingisto______.[br][originaltext]Okay,everybod
EntertainmentinLondonBuyingBoo
【B1】[br]【B10】A、chargeB、damageC、repairD、checkC语义衔接题[考频:22]。用排除法选出C)repair“修
A. B. C. D.
低渗性缺水时,体液的容量改变为A.细胞外液正常,细胞内液减少 B.细胞外液减少
患儿2岁,曾患过原发性结核病,近期发现颈淋巴结肿大伴发热,精神差食欲减退,消瘦.
某地级市医院于2001年10月对患者李某行胃大部切除,胃空肠吻合术。手术操作无误
具有活血止痛,行气解郁,凉血清心,利胆退黄功效的药物是A.丹参 B.川芎 C
如右图所示,一个边长为10厘米的正方体木块ABCD-A1B1C1D1,点E、F分
工程现场甲分包单位施工时长期占用现场唯一通道,导致乙分包单位物资材料无法及时进场
最新回复
(
0
)