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
45
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
ReadthefollowingtextandanswerthequestionsbychoosingthemostsuitablesubheadingfromthelistA-Gforeachofthenumb
SometimelatelastyearInoticedIwashavingtroublesittingdowntoread.That’saproblemifyoudowhatIdo,butit’sane
SometimelatelastyearInoticedIwashavingtroublesittingdowntoread.That’saproblemifyoudowhatIdo,butit’sane
[A]Fashionbehavesasamovement,andonthisbasisitisdifferentfromcustomwhich,bycomparison,isstatic.Thisisdueto
Thefollowingparagraphsaregiveninawrongorder.ForQuestions1-6,youarerequiredtoreorganizetheseparagraphsintoac
Prof.Smithhassentyouthelistofreferencebookswhichyouaskedfor.Writealettertohimto1)expressyourgratitude,an
TheinclusionofallchildrenandyouthispartofageneralintegrativetrendthathasacceleratedsinceWorldWarII.Itrelat
Trustisatrickybusiness.Ontheonehand,it’sanecessarycondition【C1】______manyworthwhilethings:childcare,friendship
YesterdayattheUNseveralgroups,includingRotaryInternational,theWorldHealthOrganization,andtheBill&MelindaGates
随机试题
“肝肾同源”的主要依据是()(2008年第10题)
关于PowerPoint2010幻灯片母版的使用,不正确的是________。
费城染色体的本质是
水利工程施工成本包括()。
石灰熟化过程中会出现()现象。
下列关于我国的货币政策工具的论述正确的是( )。
简述几种流行的通用图像文件格式。
下列对公安机关人民警察盘问、检查的表述正确的是()。
人类最基本的实践活动是()
如果要在文本框中输入字符时达到密码显示效果,如星号(*),应设置文本框的属性是()。
最新回复
(
0
)