首页
登录
职称英语
The use of fire improved early man’s life in many ways.【B1】______ made his
The use of fire improved early man’s life in many ways.【B1】______ made his
游客
2024-06-02
40
管理
问题
The use of fire improved early man’s life in many ways.【B1】______ made his food more【B2】______ . Smoking and【B3】______ food made it possible for him to keep【B4】______ longer. He could improve his【B5】______ tools and weapons by【B6】______ their points over a【B7】______ . Camp fires or flaming torches could【B8】______ away wild animals.
Fire is so important in our human life and supplies us something that could make our life more and more comfortable and easier. The most essential one is that, fire protected man from the cold. Without fire, man could only live in warm regions. But with fire, man could move north. In the coldest winter, man could stay warm in heated shelters.【B9】______ . Later he learned to make glass and to work with metals.
Step by step, soon man learned that water could be boiled and that food could be cooked in boiling water.【B10】______ . Steam machinery was important to the Industrial Revolution.【B11】______ .
Fire produces steam in electricity generating plants. The steam turns a turbine which makes electricity, which gives light.
Until right now, we could not live without fire. Imagine, what should we do if fire had disappeared from the earth? And how could we live here without fire? And our humans will be died out? We should think, about this hypothesis. [br] 【B6】
选项
答案
hardening
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3616485.html
相关试题推荐
Theuseoffireimprovedearlyman’slifeinmanyways.【B1】______madehis
Theuseoffireimprovedearlyman’slifeinmanyways.【B1】______madehis
Theuseoffireimprovedearlyman’slifeinmanyways.【B1】______madehis
Theuseoffireimprovedearlyman’slifeinmanyways.【B1】______madehis
Theuseoffireimprovedearlyman’slifeinmanyways.【B1】______madehis
EconomistssayconfidenceintheU.S.economyhasimprovedsincethefinancialc
EconomistssayconfidenceintheU.S.economyhasimprovedsincethefinancialc
EconomistssayconfidenceintheU.S.economyhasimprovedsincethefinancialc
Theresearchisdesignedtocontributetoanimprovedfoundationforteachertra
Theresearchisdesignedtocontributetoanimprovedfoundationforteachertra
随机试题
Ican’tgototheNewYear’sconcert;______,100dollarsisjusttoomuchform
[audioFiles]2015m3s/audio_ezfj_ezflisteningd_20151_165[/audioFiles]
Whilelongwalksaregreat,campingforseveraldaysisabetter,more【C1】__
[originaltext]M:Youlikelivinginthecity,don’tyou?W:Oh,Iloveit.It’s
下列哪部歌剧是由剧作家阎肃编剧的?()A、《白毛女》B、《洪湖赤卫队》C、
理想的TDM应测定A.血中总药物浓度B.血中游离药物浓度C.血与血浆蛋白结合的药
通过阅读患者的病历、分析病史及其健康影响因素来评估患者健康需求的方法是()。A
1.实施企业文化传播工程的重点内容是什么?
下列选项中,社会工作通过服务维持社会秩序的是()。A.通过自上而下的行政系统和
一台15MVA双绕组高压厂用变压器,短路阻抗在制造上的误差为+5%和一10%,短
最新回复
(
0
)