求小英语作文!急用!在线等!1.Caring for Our Earth 2.Nobel Prize Winners 3.Famous Brand Names 4.Cloning and Ethics 5.lifelong education6.trave around the world7.drug abuse根据上面的主题各写一篇一百字到两百的英语作文.只_百度作业帮
求小英语作文!急用!在线等!1.Caring for Our Earth 2.Nobel Prize Winners 3.Famous Brand Names 4.Cloning and Ethics 5.lifelong education6.trave around the world7.drug abuse根据上面的主题各写一篇一百字到两百的英语作文.只
求小英语作文!急用!在线等!1.Caring for Our Earth 2.Nobel Prize Winners 3.Famous Brand Names 4.Cloning and Ethics 5.lifelong education6.trave around the world7.drug abuse根据上面的主题各写一篇一百字到两百的英语作文.只要在今天晚上给出答案,加分不是问题.
caring for our earth environment the biggest threat to our environment today is the way we,as human beings,see our environment,how we see our environment shapes our whole world.most of us see everything as independent from one another.But the reality is that everything is part of one interconnected,interrelated whole.For example,a tree may appear isolated,but in fact it affects and is affected by everything in its environment--sunshine,rain,wind,birds,minerals,other plants and trees,you ,me.The tree shapes the wind
it is also shaped by that wind.Look at the relationship between the tree and its environment and you will see the future of the tree.The "Matthew effect" denotes the phenomenon that "the rich get richer and the poor get poorer" and can be observed in various different contexts where "rich" and "poor" can take different meanings.The effect takes its name from a line spoken by "the Master" in Jesus' parable of the talents in the biblical Gospel of Matthew:"For unto every one that hath shall be given,and he shall have abundance:but from him that hath not shall be taken away even that which he hath." (Matthew XXV:29,King James Version.) Sociology of science In sociology of science,"Matthew effect" was a term coined by Robert K.Merton to describe how,among other things,eminent scientists will often get more credit than a comparatively unknown researcher,even if t it also means that credit will usually be given to researchers who are already famous:for example,a prize will almost always be awarded to the most senior researcher involved in a project,even if all the work was done by a graduate student.[edit] Examples As credit is valued in science,specific claims of the Matthew effect are contentious.20th century mathematician John von Neumann is frequently called the "father of game theory" or the "father of the computer," even though his influential publications were sometimes restatements of the ideas of his collaborators (see the First Draft of a Report on the EDVAC).There was a controversy involving George Sudarshan and the Nobel Prize in Physics for 2005.Several physicists wrote a letter to the Swedish Academy,protesting that Sudarshan should have been awarded a share of the Prize for the Sudarshan-Glauber representation (or Sudarshan diagonal representation) in quantum optics,for which Roy J.Glauber won his share of the prize.Because the terms of Alfred Nobel's will restrict the number of Nobel Prize winners to three in a given year,the Nobel Committee has often been criticized for allegedly ignoring scientists who did seminal work on a topic while awarding a prize to other scientists for the same topic.For the first time,Sudarshan himself has broken his silence over the Nobel controversy.Speaking to HT,he expressed frustration at the way Indians are ignored for top science honours.Speaking to the Indian daily ,he said:"The 2005 Nobel prize for Physics was awarded for my work,but I wasn鈥檛 the one to get it.Each one of the discoveries that the Nobel was given for were based on my research." In algorithmic information theory,the notion of Kolmogorov complexity (also known as Kolomogorov-Chaitin complexity) is named after the famous Russian mathematician Andrey Kolmogorov.Li and Vitanyi,in "An Introduction to Kolmogorov Complexity and Its Applications" (p.84),write:Ray Solomonoff [...] introduced [what is now known as] 'Kolmogorov complexity' in a long journal paper in 1964.[...] This makes Solomonoff the first inventor and raises the question whether we should talk about Solomonoff complexity.[...] (Associating Kolmogorov's name with the complexity may also be an example of the "Matthew Effect" first noted in the Gospel according to Matthew,25:29-30,"For to every one who has more will be given,and he wi but from him who has not,even what he has will be taken away.And cast the worthless servant int there men will weep and gnash their teeth.") There are many uncontroversial examples of the Matthew effect in mathematics,where a concept is due to one mathematician (and well-documented as such),but is attributed to a later (possibly much later),more famous mathematician who worked on it.For instance,the Poincar茅 disk model and Poincar茅 half-plane model of hyperbolic space are both named for Henri Poincar茅,but were introduced by Eugenio Beltrami in 1868 (when Poincar茅 was 14 and had not as yet contributed to hyperbolic geometry).[edit] Matilda effect The Matilda effect is the corollary to the Matthew effect:the work of women in science is often neglected.The Matilda effect,named after early feminist Matilda Joslyn Gage,was postulated by historian of science Margaret Rossiter in 1993.[edit] Education In education the term Matthew effect has been adopted by Keith Stanovich,a psychologist who has done extensive research on reading and language disabilities.Stanovich used the term to describe a phenomenon that has been observed in research on how new readers acquire the skills to read:early success in acquiring reading skills usually leads to later successes in reading as the learner grows,while failing to learn to read before the third or fourth year of schooling may be indicative of life-long problems in learning new skills.This is because children who fall behind in reading,read less,increasing the gap between them and their peers.Later,when students need to "read to learn" (where before they were learning to read) their reading difficulty creates difficulty in most other subjects.In this way they fall further and further behind in school,dropping out at a much higher rate than their peers.Because of this they are not able to tap into education as a way to improve their lives,essentially becoming poorer while others become richer.In the words of Keith Stanovich:Slow reading acquisition has cognitive,behavioral,and motivational consequences that slow the development of other cognitive skills and inhibit performance on many academic tasks.In short,as reading develops,other cognitive processes linked to it track the level of reading skill.Knowledge bases that are in reciprocal relationships with reading are also inhibited from further development.The longer this developmental sequence is allowed to continue,the more generalized the deficits will become,seeping into more and more areas of cognition and behavior.Or to put it more simply -- and sadly -- in the words of a tearful nine-year-old,already falling frustratingly behind his peers in reading progress,"Reading affects everything you do" (Adams,1990,pp.59-60)" [edit] Social policy In social policy the term was introduced by Herman Deleeck.It refers to the phenomenon,widely observed across advanced welfare states,that the middle classes tend to be the main beneficiaries of social benefits and services,even if these are primarily targeted at the poor.The term is also used in a similar way in adult education to describe the distribution of adult learning across populations.In this case it refers to the phenomenon whereby adults who have the highest levels of initial education are most likely to engage in structured continuing learning,while those with the lowest levels of initial education are the least likely to engage in structured learning
caring for our earth environment the biggest threat to our environment today is the way we,as human beings, see our environment,how we see our environment shapes our whole world. most of us ...
youareapig（2012o宁夏）地沟油中含有大量对人体有毒、有害的物质．一些不法商人对其进行简单的脱水、脱杂、脱臭处理后，冒充色拉油在市场上销售，欺骗、伤害市民．小华想用测密度的方法来鉴别色拉油和地沟油．首先，他通过网络查得优质色拉油的密度在0.91g/cm3-0.93g/cm3之间，地沟油的密度在0.94g/cm3-0.95g/cm3之间，如图1所示．
然后，他设计了以下步骤进行实验鉴别：
A、将部分样品油倒入量筒中后，测出烧杯和剩余样品油的总质量m；
B、将天平放在水平台面上调平；
C、取适量样品油倒入烧杯，用天平测出烧杯和样品油的总质量M；
D、读出量筒中样品油的体积3；
E、根据测算出的密度，鉴别样品油的品质；
F、利用实验数据，计算出样品油的密度；
（1）请将上面实验步骤正确排序：B、C、A、D、F、E（填字母序号）
（2）由图示可知，M=52克；样品油的体积V=30mL．
（2）若m=22.8克，则样品油的密度ρ=0.94g/cm3．
（4）小华通过比对测算结果，能否断定样品油是地沟油？为什么？
小强认为：比热容也是物质的一种属性，比较不同物质的比热容，同样可以鉴别它们．于是，他量取质量相等的色拉油和样品油分别装入A、B两个烧瓶内，将两根阻值相同的电阻丝分别浸入两个烧瓶内，串联后接入电路，如图2所示．
（5）实验中，小强把两根阻值相同的电阻丝串连接入电路，其目的是在相同时间产生的热量相同；取质量相等的色拉油和样品油，其目的是控制变量，通过观察温度的变化，就能比较出它们比热容的大小，并依此鉴别出样品油的品质．
（1）要测量样品油的密度，正确的测量步骤为：B、将天平放在水平台面上调平；C、取适量样品油倒入烧杯，用天平测出烧杯和样品油的总质量M；A、将部分样品油倒入量筒中后，测出烧杯和剩余样品油的总质量m；D、读出量筒中样品油的体积V；F、利用实验数据，计算出样品油的密度；E、根据测算出的密度，鉴别样品油的品质；
（2）烧杯和样品油的总质量为M=50g+2g=52g；样品油的体积为V=30mL=30cm3；
（3）样品油的质量为m油=M-m=52g-23.8g=28.2g
样品油的密度为ρ=油
=0.94g/cm3；
（4）已知地沟油的密度在0.94g/cm3-0.95g/cm3之间，样品油的密度在此范围之内，所以也可能属于地沟油；
（5）由公式c=知，要比较不同物质的吸热能力，需要保持热量、质量都相同，比较温度的变化，温度变化越明显，说明吸热能力越差．所以小强把两根阻值相同的电阻丝串连接入电路，其目的是 在相同时间产生的热量相同；取质量相等的色拉油和样品油，其目的是控制质量这个变量相同，通过观察温度的变化，就能比较出它们比热容的大小，并依此鉴别出样品油的品质．
故答案为：
（1）B、C、A、D、F、E；
（2）52；30；
（3）0.94；
（4）因为样品油的密度在地沟油的密度范围之内，所以可能是地沟油；
（5）在相同时间产生的热量相同；控制变量；温度的变化．
（1）测量液体密度的实验过程是：调节天平使横梁平衡；在烧杯内倒入适量的某种液体，用天平测出烧杯和该液体的总质量m1；将烧杯中的部分液体倒入量筒中，读出量筒内液体的体积V；用天平测出烧杯和剩余液体的质量m2；利用密度公式算出液体的密度．
（2）用天平测量物体质量时，被测物体的质量等于砝码的总质量与游码所对刻度之和；读取量筒中液体的体积时，先要明确量筒的分度值，读数时以液面的最凹处为准．
（3）已知烧杯和样品油的总质量以及倒入量筒后烧杯和剩余样品油的质量，两者之差就是量筒中样品油的质量；已知样品油的质量和体积，利用ρ=得出样品油的密度；
（4）将样品油的测量结果与色拉油和地沟油的密度范围进行比较，根据所在范围作出判断；
（5）不同物质吸热能力的大小与其比热容有关，要比较比热容的大小，就要利用公式c=，应用的方法是控制变量法和转换法．访问的页面不存在}