阅读段落
The invention of rockets is linked inextricably with the invention of black powder. Most historians of technology credit the Chinese with its discovery. They base their belief on studies of Chinese writings or on the notebooks of early Europeans who settled in or made long visits to China to study its history and civilization. It is probable that, some time in the tenth century, black powder was first compounded from its basic ingredients of saltpeter, charcoal and sulphur. But this does not mean that it was immediately used to propel rockets. By the thirteenth century, powder-propelled fire arrows had become rather common. The Chinese relied on this type of technological development to produce incendiary projectiles of many sorts, explosive grenades and possibly cannons to repel their enemies. One such weapon was the basket of fire or, as directly translated from Chinese, the arrows like flying leopards. The 0.8 metre-long arrows, each with a long tube of gunpowder attached near the point of each arrow, could be fired from a long, octagonal-shaped basket at the same time and had a range of 400 paces. Another weapon was the arrow as a flying sabre, which could be fired from crossbows. The rocket, placed in a similar position to other rocket-propelled arrows, was designed to increase the range. A small iron weight was attached to the 1.5m bamboo shaft, just below the feathers to increase the arrows stability by moving the centre of gravity to a position below the rocket. At a similar time, the Arabs had developed the egg which moves and burns. This egg was apparently full of gunpowder and stabilized by a 1.5m tail. It was fired using two rockets attached to either side of this tail.
段落大意
本段介绍了火箭弹的相关发明黑火药,以及与其相似的中国和阿拉伯的火箭弹。
阅读笔记
Relevant invention: black powder.
Black powder: invented by Chinese, first compounded from basic ingredients of saltpeter, charcoal and sulphur.
Similar invention:
Chinese arrows like flying leopards + arrow as a flying sabre
Arabic egg which moves and burns.
逻辑关系
1. 并列
one such weapon was the basket of fire or as directly translated from Chinese, the arrows like flying leopards
the arrow as a flying sabre, which could be fired from crossbows
the Arabs had developed the egg which moves and burns
国内英语资讯:Residents relocated, flights to be canceled in Hong Kong as typhoon Mangkhut nears
体坛英语资讯:Hoffenheim, Wolfsburg win in German Bundesliga
国际英语资讯:Spotlight: Syrias reconstruction process in limelight amid major military victories
国际英语资讯:Sudans new govt ministers take constitutional oath
体坛英语资讯:Wang and Fan crowned, China sweep Asiad table tennis golds in Jakarta
体坛英语资讯:Four things to look out for in Spains matchday 3
国内英语资讯:Chinese vice president attends DPRK 70th anniversary reception
娱乐英语资讯:Chinese director pays tribute to Rohmer in The Three Adventures of Brooke
国内英语资讯:Chinese premier meets French FM
国内英语资讯:China orders fire safety checks at museums nationwide
国际英语资讯:EU not to consider lifting sanctions on Russia, but dialogue to continue: Merkel
国际英语资讯:Former U.S. vice president underlines need for U.S. return to Paris Agreement
国际英语资讯:18 dead, 19 missing in wake of powerful earthquake at Japans Hokkaido
体坛英语资讯:China crowned womens basketball champs at Asiad
国内英语资讯:China, Uruguay vow to strengthen cooperation
国际英语资讯:30th EU Contest for Young Scientists opens in Dublin
国际英语资讯:Three bodies recovered from plane wreck in Bolivian Amazon
体坛英语资讯:China wins over Thailand, makes it to semis at Asiad womens soccer tournament
国内英语资讯:Chinas top legislator urges more effort in legislation work
体坛英语资讯:18th Asian Games draw to close as China dominate medal table again
国际英语资讯:Cambodian minister visits ongoing construction site of China-funded stadium
国际英语资讯:Turkish foreign minister recognizes Pakistans role to defeat terrorism, extremism
国内英语资讯:Eliminating poverty important for human rights promotion: Chinese diplomat
异地恋想长久?你必须想清楚这2点
国内英语资讯:China Focus: Xi, Maduro agree to promote Sino-Venezuelan ties to higher level
彭斯:公开批评却匿名抵抗特朗普总统的人应辞职
国际英语资讯:Former Trump campaign aide Papadopoulos sentenced to 14 days in jail
认真生活,问自己这25个问题
国际英语资讯:Spotlight: President Trump continues attacks on explosive book, op-ed on his administration
娱乐英语资讯:Interview: Chinese filmmaker Zhang Yimou says new film Ying (Shadow) to achieve desaturated
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |