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Người theo dõi (127)

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Thanh Trà
Nguyễn Huy Tú

Câu trả lời:

When we think about improving a language, we usually come up with four types of skills we need, which are speaking, listening, reading and writing skills. Let's look at methods to improve each skill.
Firstly, having a conversation in English is the best way to improve the speaking skill.If you have opportunities to talk with English native speakers, it would be great, but even talking with english learning friends also works a lot. Nowadays you can easily find a person to talk with through the internet as well.
Secondly, to improve your reading and writing skills, you should read books a lot. It increases your reading speed as well as amount of vocabulary. Moreover, keeping a diary in English must be effetive too.
Lastly, to improve the listening skill, you should listen to correct English as much as you can. According to my experiences,news programs in English speaking countries,or TV dramas and films with English subtitles are really good training materials.You can also use radio and free video websites.
Among of all above, which one is the best way to improve our English? The answer depends on which skill you'd like to improve. However, I think watching news programs is the best way to learn English. Because if you watch English news, you can train listening and reading at the same time since there are usually some subtitles or witten summaries on the screen while a newscaster is reading the news. Moreover, it increases not only your vocabulary but also your knowledge about the country and the world. It would be a great help when you talk with foreign people or write about current affairs in English.

Câu trả lời:

Causes of water pollution

1) Water pollution may be caused by the intentional or unintentional disposal of hazardous chemicals and materials into a body of water.

2) Rainfall may cause polluted landscapes to disperse their poisonous materials into the water and poison the surrounding water.

3) Water pollution may also be caused by specific points or contributing factors such as large factories, oil refineries, construction sites, chemical waste management facilities, dump sites and other large scale operations that store/produce large amounts of chemical/hazardous waste.

Effects of water pollution

1) Toxic rainfall can occur in areas where water and/or air is polluted with toxic chemicals and materials.

2) Polluted water can lead to sickness, disease, infections, deformities and even death among animals and plant life.

3) Once water becomes polluted it can affect people and animals either directly through consumption or indirectly through food sources, land degradation and the overabundance of plants and algae which can cover the surface of various bodies of water making it undrinkable and affecting the animals that live in that body of water.


The most critical step to prevent water pollution is to adopt appropriate waste management policies. Setting up of wastewater treatment plants can resolve this issue and hence we can protect our natural water resources from contamination and embrace an eco-friendly life.


If you would like to limit the amount of pollution you produce and thus help keep the oceans, rivers and lakes clean there are a number of things you can do.

Replace your air fresheners with eco-friendly candles, incense and/or potpourri Purchase environmentally friendly cleaning products that do not harm the land if they happen to be flushed or emptied into a drain Reduce the amount of power you use and purchase energy saving light bulbs and appliances. This helps reduce the amount of emissions being released by utility companies and your own home products. Conserve your water usage and don’t leave water running when you are not using it Reduce, recycle & reuse materials that you have purchased. Plastics and papers may be sent to the recycling bin while some of your glass materials may be able to be reused or re-purposed Make sure non recyclable waste is contained properly so that it does not spill into the land, street drain sewage drain Purchase local food that has been grown from healthy agricultural farms that don’t use polluting fertilizers and pesticides Purchase eco-friendly lawn fertilizers and pesticides for your own lawn in order to prevent your lawn from becoming toxic and prevent possible hazardass chemicals from entering street drains Recycle old clothing by giving it away to shelters and non for profit re sellers. Not only does it lower the amount of garbage you produce it also allows you go give to a cause and help the community Use a reusable grocery bag rather than the plastic bags offered at grocery stores when shopping for food to minimize your plastic waste Eliminate unnecessary mail and have your bills sent to you by email. This helps protect the trees and reduce the amount of paper you have to dispose of later

Câu trả lời:

Communication in the Present:

The telegraph was the first major milestone in the development of communication technology because it led to many of the things we use today and its similar to techniques we use today. Expansion in this past technology has made it possible for many of the things we use today, such as telephones, radio, cable television, Internet, and mobile phones.

It was not long after the telegraph became a success before the next progression in technology came along, the telephone. The telephone was used to transmit speech electronically, which was a success. Unfortunately, it failed because under-water cables did not have a strong enough signal.

Another major advancement in technology that most of America has benefited from is the cell phone. Cell phones have evolved immensely since 1983, both in design and function. This envolvement brought a whole new meaning to the term multitasking. Cell phones today can do any and everything from sending text messages, to emails, to uploading video and picture, and most importantly downloading applications for everything.

Modern day technology keeps communication constant; it allows people to express themselves with a click of a button.

Technology in the Future:

The future holds a lot of promise for auto voice translating and interpretting, which will remove any language barriers. The future progression in technology will change the dynamics of communication all across the world, in the classroom, the workplace and in the public sphere. It is unknow what the future may hold for the advancement communication technology, but it is not far-fetched to say that we may one day be able to send emails with our own thoughts or brainwaves where ever we are.

Câu trả lời:

Advantages :))

Science and technology has become a debated topic in the society. On one hand, it is necessary for the modern life where other countries are continuously developing in the field of science and technology. It becomes very necessary for other countries too to grow in the same way to be strong and well developed like other countries for the future safety and security. It is science and technology which helps other weak countries to develop and be strong. We have to take support of science and technology forever to improve the way of life for the betterment of mankind. If we do not take the help of technologies such as computer, internet, electricity, etc we cannot be economically strong in the future and would be backward forever even we cannot survive in such a competitive and technological world.

Advancement in the field of medical, agriculture, education, economy, sports, games, jobs, tourism, etc are the examples of science and technology. All such advancements show us that how both are equally beneficial for our life. We can see a clear difference in our life style while matching the ancient and modern way of life. High level of scientific and technological advancement in the field of medicine has made easy the treatment of various lethal diseases which was earlier not possible. It has helped a lot to the doctors to find effective ways to cure diseases through medicine or operations as well as research vaccines to cure diseases such as cancer, AIDS, diabetes, Alzheimer’s, Leukemia, etc.

Disadvantagesssss :)))

Disadvantages of science not much but technology, yes. Technology has in our lives helped in creating comfort, increasing productivity and connecting more of us with each other. While it has some advantages like I can effortlessly travel between two far away places, do more stuff in a day and talk to my mom and dad over the internet where we are miles away from each other, it has its pitfalls.

First, it has made us move less than we used to. We don't walk much as our ancestors did. We don't lift things to clean, slog and move our muscles to do household chores. This makes one of the greatest problems of the western world - obesity.

Secondly, increased productivity and better refrigeration means increased production of processed foods. Junk foods with high concentrations of sugar and fat. Again a problem that is faced globally and in more in the western world like diabetes, high cholesterol, coronary heart disease. Etc.

Thirdly, connecting more of us with each other. This is a boon and a bane. When you are Connected it's not just you who gets access to the internet but also that the internet has access to you. This can have adverse consequences if not used cautiously like cyber data crimes - e.g. The recent Facebook-Cambridge analytica issue which led to personally identifiable information to be sold without consent to a third party by Facebook.

Finally, it's not just the technology to be really blamed here. It's the abuse of technology like misusing or total reliance on technology for basic tasks that make it a disadvantage.

Câu trả lời:

Essay on Water Pollution – Essay 2 (250 Words)


The consumption of water forms a large part of our physical health. Aside from this obvious fact, water is an important aspect of our ecosystem. However, for water to perform its various functions, it has to be kept pure as contaminated water would lead to adverse environmental and health consequences.

Water pollution is the introduction of foreign material into our water bodies like lakes, streams, rivers or groundwater. This introduction, 9 times out of 10 is usually a result of human interference. Through various activities, sometimes inadvertently, we pollute our ecosystem with toxic materials dumped into our water.

Causes of Water Pollution:

One of the most popular features of water is also the cause of water pollution. Water is a “Universal Solvent” which simply means that it can dissolve almost any substance. Consequently, it is also why toxic substance mixes with water effortlessly. These toxic materials could be from traceable sources such as factories, farms, sewage etc. They are sometimes less traceable sources such as pollution in the air.

Water Pollution Effect on our Environment:

The first organisms that come in contact with polluted water are creatures living in the water. The effect of water pollution on aquatic animals depends on the kind of material introduced into the water. In extreme cases, it can lead to death of aqua species. It can also lead to a serious disrupting of the food chain. Finally, water pollution can lead to serious diseases in humans such as cholera and hepatitis.

Preventive Measures:

While the obvious way to reduce or eliminate water pollution is to stop industrial waste, doing just that and nothing more would not be enough. Preventive measures such as reduction in plastic consumption, controlling leaks in cars, using fewer pesticides or efficient disposal of chemicals would help us go the extra mile.