四大滴定汇总

时间:2024.4.29

四大滴定汇总

四大滴定汇总

四大滴定汇总

四大滴定汇总


第二篇:专四大作文历年真题汇总


1992

My View on Reading Extensively

1993

My Idea of Becoming a Teaching in the Future

1994

TV: a good thing or a bad thing?

1995

Nowadays it has become fashionable for college students to take a part-time job in their spare time. Discuss the advantages and disadvantages of this trend.

1996

Every college student would agree that life in college is not the same as it was in the middle school. Now, you have been asked by the Student’s Union to write a passage entitled:

The Main Difference Between My College Life And My Middle School Life

1997

Some of your classmates think that more pressure from academic studies is not beneficial to students. You either agree or disagree with them:

More Pressure from Academic Studies does (does not) Good to us

1998

It is now generally accepted that vehicles (cars, trucks, etc.) are a major source of air pollution in cities. Your are to suggest only ONE way to solve the problem.

One Way to Solve the Problem

1999

We see advertisements on television everyday. Some people think that TV advertising brings as benefits, but others don’t think so. What is your opinion?

A Major Advantage/Disadvantage of Advertising on Television

2000

College life should be varied and colorful. And extracurricular activities are an important aspect of it. However, at present, there is much room for improvement in this regard. Write an article to the university radio entitled:

The Importance of Extracurricular Activities

2001

Travel has become part of our life. And more and more of us have come to know the significance of travel through our own experience:

Travel Broadens the Mind

2002

Nowadays people are becoming increasingly aware of the importance of health. And they have different ways to stay healthy. For example, some exercise every day; others try to keep a balanced diet. What do you think is the best way to stay healthy?

The Best Way to Stay Healthy

2003

People in modern society live under a lot of pressure, from education, career, or family. So it is important for them to keep a good mood under whatever circumstances.

Write on ANSWER SHEET TWO a composition of about 150 words on the following topic:

The Importance of Keeping a Good Mood

2004

Nowadays young people tend to phone more often than write to each other. So, some say that phones will kill letter writing. What is your opinion?

Write on ANSWER SHEET TWO a composition of about 150 words on the following topic:

Will Phones Kill Letter Writing?

2005

The students' Union of your university is planning to hold an arts festival next semester, and they are inviting students to contribute their ideas and suggestions as to how it should be organized or what should be included.

Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:

My Idea of a University Arts Festival

You are to write in three parts.

In the first part, state specifically what your opinion is.

In the second part, support your opinion with appropriate details.

In the last part, bring what you have written to a natural conclusion or a summary.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

2006

Recently a Beijing information company did a survey of student life among more than 700 students in Beijing, Guangzhou, Xi'an, Chengdu, Shanghai, Wuhan, Nanjing, and Shenyang . The results have shown that 67 percent of students think that saving money is a good habit while the rest believe that using tomorrow's money today is better, what do you think?

Write on ANSWER SHEET TWO a composition of about 200 words.

You are to write in three parts.

In the first part, state specifically what your opinion is.

In the second part, support your opinion with appropriate details.

In the last part, bring what you have written to a natural conclusion or a summary.

You should supply an appropriate title for your composition.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

2007

Nowadays the Internet has become part of people’s life, and million of young people have made friends online.

Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:

Is It Wise to Make Friends Online

You are to write in three parts.

In the first part, state specifically what your opinion is.

In the second part, support your opinion with appropriate details.

In the last part, bring what you have written to a natural conclusion or a summary.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

2008

December 5th is International Volunteers Day. Since 1985, when the United Nations announced the special day, tens of millions of people around the world have volunteered to help those in need. China now has 4.5 million registered volunteers who have provided more than 4.5 billion hours of volunteer work. What can you gain from volunteering?

Write on ANSWER SHEET TWO a composition of about 200 words on the following topic:

The Benefits of Volunteering

You are to write in three parts.

In the first part, state specifically what your opinion is.

In the second part, support your opinion with appropriate details.

In the last part, bring what you have written to a natural conclusion or a summary.

Marks will be awarded for content, organization, grammar and appropriateness. Failure to follow the instructions may result in a loss of marks.

2009

Tourism is a booming business in China. However, some people worry that too many tourists may bring harm to the environment, while others don’t think so. What is your opinion?

Write a composition of about 200 words on the following topic:

Will Tourism Bring Harm to the Environment?

2010

It was recently reported in a newspaper that six students who shared a dorm at a local university hired a cleaner to do laundry and cleaning once a week. And each of them paid her 60 yuan a month. This has led to a heated debate as to whether college students should hire cleaners.

Write on ANSWER SHEET THREE a composition of about 200 words on the following topic:

Should College Students Hire Cleaners?

2011

Recently Government agencies in some big cities have been studying the possibility of “posing a pollution tax” on private cars. The amount of tax private car owners would have to pay would depend on the emission levels, i.e. engine or vehicle size. This has caused quite a stir among the public. Some regard it as an effective way to control the number of cars and reduce pollution in the city. But others don’t think so. What is your opinion?

Write a composition of about 200 words on the following topic:

Should private car owners be taxed for pollution?

更多相关推荐:
四大滴定总结

四大滴定总结分析化学中的四大滴定即酸碱滴定氧化还原滴定配位滴定沉淀滴定一酸碱滴定1原理酸碱滴定法是以酸碱之间质子传递反应为基础的一种滴定分析法基本反应为HOHH2O也称中和法是一种利用酸碱反应进行容量分析的方法...

四大滴定的相同点及不同点

四大滴定法的异同点总结

四大滴定总结

四大滴定总结酸碱滴定法第一节水溶液中的酸碱平衡一酸碱质子理论酸是能给出质子的物质碱是能接受质子的物质既可以是酸又可以是碱这类物质称为H2PO4实质上是发生在两对共轭酸碱对之间的质子转移反应由两个酸碱半反应组成二...

四大滴定总结

四大滴定总结,内容附图。

四大滴定总结

四大滴定的比较

四大滴定汇总

四大滴定汇总广西民族大学相思湖学院计工系

四大滴定

相同点反应定量的完成即反应按一定的反应式进行无副反应发生而且进行完全999反应速率要快能用合适的指示剂确定滴定的终点有一定的化学计量关系滴定分析中必须使用标准溶液最后要通过标准溶液的浓度和用量来计算待测组分的含...

四大滴定

四大滴定一酸碱滴定原理利用酸和碱在水中以质子转移反应为基础的滴定分析方法可用于测定酸碱和两性物质其基本反应为HOHH2O也称中和法是一种利用酸碱反应进行容量分析的方法用酸作滴定剂可以测定碱用碱作滴定剂可以测定酸...

氧化还原滴定法和配位滴定法自学总结

氧化还原滴定法和配位滴定法自学总结姓名学员营队学号日期氧化还原滴定法和配位滴定法自学总结近段时间我在原有的基础上自学了分析化学中四大滴定法之二即氧化还原滴定法和配位滴定法使我对四大滴定法的异同有了一定的了解也对...

渣打实习及四大求职经验

从独立学院的学生走向四大这是我的人生轨迹这是我大学四年的救赎终于回到了自己应有的轨迹这是我的故事序曲这样一年的旅程一定要从去年的这个时候讲起记忆里的20xx年春天充满阳光的味道那个时候的三月我正在准备第二次雅思...

收银员 实习总结报告

一实习目的尝试经商的滋味增加自己的阅历因本人是文科生需要有更多的体验更多的经历毕竟身在学校接触社会的机会很少趁着寒假有这样一个节日好好大干一场我很荣幸能到大庆大商新玛特休闲购物广场参加实习什么事都要有尝试都要有...

实习总结

实习总结0842815234朱亚威经过接近4年的紧张的学习生活我们对自己所学专业有了进一步的理论认识但由于一直是学习书本上的理论知识很少有机会去接触模具方面的实际生产于是经校方组织联系我们去了几个与模具有关的公...

四大滴定总结(10篇)