Peoplehavebeenmakingandflyingkitesforabout2,000years. ...
問題詳情:
people have been making and flying kites for about 2, 000 years. 36 Some historians believe that the ancient Chinese may have started kite flying 2, 000 years ago. It is still a popular hobby in China, Japan and South Korea and in other countries of the Far East where beautifully decorated kites appear in different colours. In China there is even a special Kite Day on which children and adults fly kites. In Japan, families fly fish kites on Children’s Day.
Kites are made in many different sizes, colours and shapes. 37 It flies because air flows over and under the kite’s wing. The pressure under the wing helps the kite lift into the air.
38 Early scientists sent kites up into the air to measure temperature at different heights. In 1752, Benjamin Franklin used a kite to prove that lightning was a form of electricity. He attached a metal key to the string of a kite. When lightning hit the kite, electricity passed down the string and Franklin got an electric shock. It was a very dangerous experiment that you shouldn’t copy.
Kites were also used to develop airplanes. The Wright Brothers experimented with kites before they flew the first airplane. 39 In World War I the Germans developed a large kite that could transport people to a submarine (underwater ship). Kites were also used to carry radio signals over long distances.
40 Kite festivals are organised in many cities in all parts of the world.
A. Today most people fly kites as a hobby.
B. Kites are usually made by paper or cloth.
C. Kites have also been used in experiments.
D. No one knows for sure who invented the kite.
E. The name comes from a graceful bird called kite.
F. A flat kite is the oldest and simplest type of kite.
G. In the past kites were used to take pictures in wars.
【回答】
DFCGA
知識點:七選五題型
題型:未分類
-
_____________,_____________。萬里悲秋常作客,百年多病獨登臺。杜甫《登高》
問題詳情:_____________,_____________。萬里悲秋常作客,百年多病獨登臺。杜甫《登高》【回答】無邊落木蕭蕭下,不盡長*滾滾來。知識點:其他題型:填空題...
-
.已知各項均不為零的數列{an},定義向量.下列命題中真命題是( )A.若∀n∈N*總有cn⊥bn成立,則數...
問題詳情:.已知各項均不為零的數列{an},定義向量.下列命題中真命題是()A.若∀n∈N*總有cn⊥bn成立,則數列{an}是等比數列B.若∀n∈N*總有cn∥bn成立成立,則數列{an}是等比數列C.若∀n∈N*總有cn⊥bn成立,則數列{an}是等差數列D.若∀n∈N*總有cn∥bn成立,則數列{an}是等差數列...
-
造成太平天國運動與以往農民起義具有新的不同特點的主要原因是( )A.領導階級不同 B.所處的...
問題詳情:造成太平天國運動與以往農民起義具有新的不同特點的主要原因是( )A.領導階級不同 B.所處的時代不同C.指導思想不同 D.起義*組成不同【回答】B知識點:近代*反侵略求*的鬥爭太平天國運動題型:選擇題...
-
近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛洩漏事故.三*化*是一種重要的無機鹽工業產品,無*液體...
問題詳情:近日我州某地成功處置了一輛滿載三*化*(PCI3)的車輛洩漏事故.三*化*是一種重要的無機鹽工業產品,無*液體、密度1.574g/cm3(21℃),熔點﹣112℃,沸點75.5℃,易燃.遇水反應生成亞**(H3PO3)和*化*,與有機物接觸會著火.下列對三*化*的說法錯誤的是()A.三*化*中*元素的化合價為+...
相關文章
- Youmaybesurprisedtosee"makingsurechildrennever'suffe...
- Youmaybesurprisedtosee"makingsurechildrennever'suffe...
- The2008BeijingOlympicGamesaredrawingnear.Areyoulookingf...
- Ifyoufeelsleepyeverymorning,don'tblameyourself.Yourwork...
- Youmaybesurprisedtosee"makingsurechildrennever'suffe...
- 改錯:(2018·浙*大學聯考)Peoplehadbeenwritingnovelsforacentury—mos...
- Youmaybesurprisedtosee"makingsurechildrennever'suffe...
- 任務型閱讀Doyouneedusefulandinterestingbooks?Herewe'vegotple...
- Peoplehavebeenmakingandflyingkitesforabout2,000years.N...
- At2:30onDecember5,1945,fiveUSNavytrainingplanestookoffi...