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
考研
Reinventing the Table An earth scientist has rejigged the periodic table to make chemistry simpler to teach to students.
Reinventing the Table An earth scientist has rejigged the periodic table to make chemistry simpler to teach to students.
admin
2021-04-06
32
问题
Reinventing the Table
An earth scientist has rejigged the periodic table to make chemistry simpler to teach to students.
41 But Bruce Railsback from the University of Georgia says he is the first to create a table that breaks with tradition and shows the ions of each element rather than just the elements themselves.
"I got tired of breaking my arms trying to explain the periodic table to earth students, " he says, criss-crossing his hands in the air and pointing to different bits of a traditional table. 42 But he has added contour lines to charge density, helping to explain which ions react with which.
"Geochemists just want an intuitive sense of what’s going on with the elements", says Albert Galy from the University of Cambridge. 43
44 He explains that sulphur, for example, shows up in three different spots one-for sulphide, which is found in minerals, one for sulphite, and one for sulphate, which is found in sea slat, for instance.
He has also included symbols to show which ions are nutrients, and which are common in soil or water. 45
A. There have been many attempts to redesign the periodic table since Dmitri Mendeleev drew it up in 1871.
B. Railsback has still ordered the elements according to the number of protons they have.
C. "I imagine this would be good for undergraduates."
D. Raisback has listed some elements more than once.
E. And the size of element’s symbol reflects how much of it is found in the Earth’s crust.
F. The traditional periodic table was well drawn.
选项
答案
B
解析
第三段的第一句话是这么说的:“在给学生解释元素周期表时我的手臂都要断了,”他这么说时在空中来回交叉双手,指点传统周期表中不同的元素。这一句话是讲Bruce Railsback重新制作元素周期表的原因。从主题发展来看,这句话似乎跟上文连不上,但这是一篇报道,插入了一些背景信息和其他人的评论。从第二段的最后一句话来看,B比较合适.因为都是讲元素。B说的是:Railsback仍然按照元素所有的质子数排列元素。注意:D也是讲元素。但是B中有still(仍然)这个词,它是衔接第二段的最后一句话的。
转载请注明原文地址:https://kaotiyun.com/show/fc1Z777K
0
考研英语一
相关试题推荐
SometimelatelastyearInoticedIwashavingtroublesittingdowntoread.That’saproblemifyoudowhatIdo,butit’sane
Thefollowingparagraphsaregiveninawrongorder.ForQuestions1-6,youarerequiredtoreorganizetheseparagraphsintoac
贝多芬与勇气——2014年英译汉及详解Musicmeansdifferentthingstodifferentpeopleandsometimesevendifferentthingstothesamepersonat
【F1】Americansnolongerexpectpublicfigures,whetherinspeechorinwriting,tocommandtheEnglishlanguagewithskillandg
Researchonanimalintelligencealwaysmakesmewonderjusthowsmarthumansare.【C1】______thefruit-flyexperimentsdescribed
Trustisatrickybusiness.Ontheonehand,it’sanecessarycondition【C1】______manyworthwhilethings:childcare,friendship
Formostofhumanhistoryrichpeoplehadthemostleisure.Ontheotherhand,thepoorhavetypicallyworkedpersistently.Hans
SowhyisGooglesuddenlysointerestedinrobots?That’sthequestioneveryone’saskingafteritemergedthismonththatthein
SowhyisGooglesuddenlysointerestedinrobots?That’sthequestioneveryone’saskingafteritemergedthismonththatthein
Writeanessayof160-200wordsbasedonthefollowingdrawing.Inyouressay,youshould1)describethedrawingbriefly,
随机试题
MostradioandtelevisionstationsintheUnitedStatesarecommercialstations,thatistosay,theyearntheirmoneyfrom【61】o
下列哪种凝血因子的合成不需维生素K参与
X线成像的基础不包括
顾女士,24岁,未婚,停经52天,诊断为早孕,行吸宫术。术中出现面色苍白、出冷汗、头晕、胸闷、呕吐、血压下降等表现人工流产术后宣教内容中错误的是()
硫脲类抗甲状腺药物主要的作用是
人工流产术中突然头晕胸闷,血压下降,脉搏变慢,首先考虑
建设项目( )是指导管理工作的纲领性文件。
甲企业与乙企业于2014年11月17日签订股权转让协议,协议约定,乙企业应于2014年11月30日向甲企业支付股权转让款项,股权转让款项全部支付时股权转让协议生效。乙企业实际于2014年12月20日向甲企业支付了股权转让全部款项。2015年1月18日办理了
以下属于感觉对比现象的有()。
《走西口》的流传范围是_______。
最新回复
(
0
)