首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Paris,21st November 1783. There were hundreds of people in the street round an enormous (巨大的) balloon. "What is it?" they asked.
Paris,21st November 1783. There were hundreds of people in the street round an enormous (巨大的) balloon. "What is it?" they asked.
admin
2011-03-26
38
问题
Paris,21st November 1783. There were hundreds of people in the street round an enormous (巨大的) balloon. "What is it?" they asked. "What does it do?"
Then two young men came out of a house on the other side of the street, and went to the balloon. They had some wood and paper with them, and they put it into a big basket under the balloon. Then they got into the basket. They took food with them, and some warm clothes, because it was a cold day.
Then the two young men made a fire with the wood and paper. The fire was hot, and the hot air went up into the balloon.
Cold air is heavy, but hot air is light and rises. After some minutes, the balloon was very light and left the ground!
The two young men flew about five and a half miles, and came down outside the city. It wasn’t a very long journey, but it was a very important one, because it was the first journey in the air.
Joseph and Etienne Montgolfier made this balloon. It flew because it was light, but it was dangerous because of the fire.
Two years after that, two men crossed the English Channel from England to France in a balloon full of hydrogen. Hydrogen is a very light gas. One of them was a Frenchman, Blanchard, and the other was a rich American, Dr. John Jeffries. They had a lot of problems.
First the balloon flew up very high, so they opened the valve (阀门) and a lot of gas came out. Then the balloon went down, so they threw everything out, even their food and clothes! But they reached France after an exciting journey, and landed near Calais(加来[法国港口城市]).
The two men threw everything out of their balloon because ______.
选项
A、the balloon went up
B、the balloon went down
C、it was cold
D、it was exciting
答案
B
解析
转载请注明原文地址:https://kaotiyun.com/show/BYvC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
Theexhibitionwasnotverycrowded.Therewere______peoplethanIexpected.
Manypeoplefindhomegardening______.Whichofthefollowingstatementsistrue?
Manypeoplefindhomegardening______.Theamountofmoneyyouspendonyourgarden______.
Overthetraditionalfestivalpeoplevisiteachotherand______greetings.
Thepriceofaluminumwassharplyreducedwhenpeoplediscoveredanewrefiningprocesswiththeaidof______.Aluminumisfou
Therefore,don’tstartreadingabookunlessyouseefromthefirstfewpagesthat(it’soneyoucanreadwitheaseandundersta
Whenafire______attheNationalExhibitioninLondon,atleasttenpricelesspaintingswerecompletelydestroyed.
Unlesswespendmoneyspottingandpreventingasteroidsnow,onemightcrashintoEarthanddestroylifeasweknow,saysomesc
Unlesswespendmoneyspottingandpreventingasteroidsnow,onemightcrashintoEarthanddestroylifeasweknow,saysomesc
Theatmosphereandoceansarenottheonlypartsoftheenvironmentbeingdamaged.Rainforestsarebeingquicklydestroyedasw
随机试题
肝门静脉左支矢状部横断层面上的肝段不包括
男性,58岁,晨起左侧偏瘫,意识清,下午检查发现左侧面瘫,左侧上下肢肌力Ⅳ级,第二日早晨,完全恢复正常,无后遗症,可考虑诊断为
下列属于造成工程质量缺陷的最基本因素的有()。
热处理的做法包括()。
某公司2008年6月支付给中国公民王某工资3500元,并代其负担个人所得税款。公司代王某缴纳的个人所得税款为( )元。
根据公司法律制度的规定,持有有限责任公司全部股东表决权10%以上的股东,在发生某些法定事由时,可以提起解散公司的诉讼,人民法院应予受理。下列各项中,属于该法定事由的有()。
在我国西北地区荒漠化过程中,人类活动不当是主因,在人类活动中导致荒漠化的第一大表现是()。
(2004年第4题)阅读下面短文,回答下列问题:据明人蒋一葵《长安客话》记述,昔日的永乐大钟,日供六僧击之,“昼夜撞击,声闻数十里,其声宏宏,时远时近,有异他钟”。如此美妙绝伦的钟声是怎么样形成的呢?从外表上可以明显看出,大钟的钟壁上下厚度不同,钟腰的厚
假定一国的总量资本积累方程可以表示为其中总产出函数为Y=AKαL1-α,α∈(0,1),S为储蓄率(或投资率),δ为资本折旧率。请回答以下问题:在图中画出“黄金资本积累率”所对应的资本存量。
在星期六,眉丰建议杰姆下周不工作陪他到某个山区旅游,杰姆拒绝了,自称他既支付不起旅行费用又得因为没请假而被扣工资。然而,费用很明显不是杰姆不愿陪眉丰到那个山区旅游的真正原因,因为每次眉丰邀请他参加一个没事先安排的旅行时,不管眉丰计划上哪儿,杰姆都给出同样的
最新回复
(
0
)