首页
登录
职称英语
In term of physics, the characteristic feature of the roller coaster is that the
In term of physics, the characteristic feature of the roller coaster is that the
游客
2024-01-13
49
管理
问题
In term of physics, the characteristic feature of the roller coaster is that the
cars’ potential energy, gained through their being lifted by a chain drive
through the Earth gravity to the top of the first drop, had been converted to kinetic energy by the time the ride ends.
选项
A、cars’ potential energy, gained through their being lifted by a chain drive
B、cars’ potential energy, a gain achieved as they are lifted by a chain drive
C、potential energy from the cars’ being lifted by a chain drive
D、potential energy of the cars, gained as a chain drive lifts them
E、potential energy gained by the cars, being achieved while a chain drive lifts them
答案
D
解析
首先解释一个物理概念,potential energy指“势能”,kinetic energy指“动能”。在高中物理学过:相对某一固定点来说,某一物体被举起来离此点越高,则势能越大。而当把此物体放下的过程中,其势能就会逐渐转变为动能。本题的句意就是对这一原理的叙述。B中:a gain与achieved虽词性不同,但词意却是一样的,形成同义重复的毛病。C中:potentialenergy之前无限定词,使得此处“势能”缺乏具体性,也不知其与后面的提升汽车有何逻辑联系。E中:gained与being achieved属同义重复;并且while仅强调动作的同时性,即gain与lift是同时发生的。但在此处,句意更强调一个过程,用as(随着)引入时间从句更为恰当(而as不仅可强调两个动作的同时性,还可强调动作的同时性是发生在一个过程中或一个时段内),因为势能是随着提升的过程而逐渐增加的,D表达了此意,而A中用现在分词的被动语态同样无法表达出这一过程。
转载请注明原文地址:https://tihaiku.com/zcyy/3357605.html
相关试题推荐
Asweknow,physics______thescienceofenergy.A、wasB、wereC、isD、areC一些词尽管是以-
Asweknow,physics_________thescienceofenergy.A、wasB、wereC、isD、areC一些词尽管
Howsharksnavigatethevastandseeminglyfeaturelessoceanhaslongbeena
Howsharksnavigatethevastandseeminglyfeaturelessoceanhaslongbeena
Howsharksnavigatethevastandseeminglyfeaturelessoceanhaslongbeena
Aseriousstudyofphysicsisimpossible________someknowledgeofmathematics.A、
Accordingtothepassage,whichofthefollowingisacharacteristicthatdistin
Accordingtothepassage,whichofthefollowingisacharacteristicthatdistin
Efficiencyandredundancyarecontradictorycharacteristicsoflinguisticsystem
Theskullsandpelvicbonesofsomespeciesofdinosaursharecharacteristicswi
随机试题
Therearethousandsofvolcanoes(火山)allovertheworld.Whatmakesvolcanoe
下图为某国甲、乙、丙、丁四个时期人口增长模式示意图。读图回答下题。 该国死
盐酸西替利嗪属于A.氨基醚类H1受体拮抗剂B.乙二胺类H1受体拮抗剂C.哌嗪类H
组成核酸的基本单位是A.含氮碱基 B.核苷酸 C.多核苷酸 D.核糖核苷
关于产后保健的说法正确的是A.整个复旧过程大约需2周 B.高危产妇应酌情增加访
非洲五百年的屈辱、五百年的抗争都在1990年尘埃落定。标志着帝国主义在非洲殖民体
下列古诗中,对隋炀帝开凿大运河的评价,正确的是( )。A.千里长河一旦开,亡隋
某地下铁矿应急预案体系由综合应急预案、专项应急预案、现场应急处置方案组成。下列关
下列财产损失和人身伤害事件中,属于第三者责任险赔偿范围的是()A.项目承包
仲裁庭调解达成协议的,调解书自(),即发生法律效力。A.仲裁庭制作完成后 B
最新回复
(
0
)