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
外语
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which co
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which co
admin
2014-12-31
22
问题
For centuries man dreamed of achieving vertical flight. Leonardo da Vinci conceived the first mechanical apparatus(仪器), which could carry a man【C1】______up, but this was only a design and was never tested.
The ancient dream was finally realized in 1940 when a Russian aeronautical(航空学的)【C2】______, piloted a strange-looking craft of steel tubing with a rotating fan on top. It rose awkwardly and vertically into the air from a standing start, hovered a few feet above the ground, went sideways and backwards, and then settled back to earth. That【C3】______was called a helicopter.
Imaginations were fired. People【C4】______that vertical flight transports would carry millions of passengers as do the airliners of today. Such fantastic expectations were not【C5】______. It excels in military missions,【C6】______troops, guns and strategic instruments where other aircraft cannot go. Corporations use them as airborne offices; many urban areas use them in police work, construction and logging companies【C7】______them in various advantageous ways. Engineers use them for site selection and surveying, and oil companies use them as the best way to make offshore and remote work stations accessible to crews and supplies. Any urgent【C8】______to a hard-to-get-to place is a likely task for a helicopter. Among their other【C9】______of uses, they deliver people across town, fly to and from airports,【C10】______in rescue work, and aid in the search for missing or wanted persons. With all these functions, the helicopter has now become an extremely versatile machine.
A)recognize B)vehicle C)caustic D)anticipated
E)actually F)fulfilled G)employ H)carrying
I)mission J)straight K)helpless L)engineer
M)assist N)balancing O)abundance
【C1】
选项
答案
J
解析
这里作者的意思是“达芬奇发明的仪器可以载人……上”,根据前句中vertical flight“垂直飞行”可知,这里应指“直上”,straight up是固定搭配,意为“直上”。
转载请注明原文地址:https://kaotiyun.com/show/qhq7777K
0
大学英语四级
相关试题推荐
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
AsaprofessoratalargeAmericanuniversity,Ioftenhearstudentssaying:"I’monlya1050."Theunluckystudentsarespeaki
Americansarenowsuper-sized,overweight,andfattyeven.ThisistrueofalmosttwothirdsofAmericanadults.Butwhatismor
Americansarenowsuper-sized,overweight,andfattyeven.ThisistrueofalmosttwothirdsofAmericanadults.Butwhatismor
Fightunhealthyfood,notfatpeopleIt’shardlybreakingnewsthatjunkfoodisbadforus.Butjusthowbad—andjusthow
Fightunhealthyfood,notfatpeopleIt’shardlybreakingnewsthatjunkfoodisbadforus.Butjusthowbad—andjusthow
Americansbelievethatindividualsmustlearnto(1)_______themselvesorrisklosingfreedom.Thismeansachievingbothfinanc
Priortothe20thcentury,manylanguageswithsmallnumbersofspeakerssurvivedforcenturies.Theincreasinglyinterconnected
A、Checkthetimetable.B、Setoffearlier.C、Getonalaterflight.D、Cancelthetrip.C女士担心他们会错过4点钟的航班。男士劝解说“别担心,我们可以把机票换成今晚的航班”
随机试题
在分析中做空白试验的目的是()。
某市由于城市的迅速发展,中心城市与东部卫星城间交通压力日益加重,为此拟建一条按高速公路标准,时速80km/h的城市快速路,线路长12km。初测阶段,需测绘规划路沿线1:500带状地形图,宽度为规划红线外50m,遇规划及现状路口加宽50m,同时调查绘图范围内
背景某机电安装公司经过邀请招标、总包一大型炼油厂的机电设备安装工程和钢结构制作安装工程,其中机修车间、工业给排水工程、空压机站等工程不包括在工程范围,合同工期为18个月,总价一次包死。合同签订后,在业主的同意下,将部分非主体安装工程分包给三个具有
甲级政府采购代理机构资格由省级人民政府财政部门负责批准。()
公安机关应对广大社会成员进行治安形势和违法犯罪发展趋势的教育,提高其()
17世纪伽利略因宣传“日心说”被宗教裁判所监禁。随着社会的进步和科学的发展,1980年10月罗马教皇不得不公开为伽利略平反,这说明()。
面对大众文化扑面而来,我国主流文化大有力不从心,步步退缩的趋势,而面对西方强大的文化热潮,主流文化大有与“狼”共枕之感。主流丈化,只有经过与狼“共枕”的温存和与狼“共舞”的较量.才能获得健康的传承基因和生命活力。此段文字意在说明()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
HowtoStartaSmallBusinessintheUSPeoplefromothercountriesoftentakeAmericaasthe"landofopportunity".America
TheCommercialRevolutionwasnotconfined,ofcourse,tothegrowthoftradeandbanking.Includedinitalsowerefundamental
最新回复
(
0
)