Monday, May 10, 2010

environmental pollution

Nowadays , environmental pollution is one of the biggest problems that the world faces. We often talk about the harms of environmental pollution but we still do not know what environmental pollution actually is. Before we can understand how to control environmental impacts caused by various forms of pollution , we must first know what exactly environmental pollution is and where it comes from.
The most serious contamination comes from the air we breath every day. It is called air pollution. Air pollution is generally in the form of gas emitted by factories , vehicles, etc . It releases chemicals into the atmosphere so what we breath is not only the pure air but also the contamination of the air. More and more factories are build and the vehicles circulate nonstop. It is these things that make our environment worse and worse. Also , air pollution from smoke and various chemicals kills 3 millions people in a year. In the United States ,about 3 million tons of toxic chemicals are released into the environment which contribute to cancer, birth defects, immune system defects and many other serious health problems. And it is people are living with these diseases that were caused by air pollution.
The second most serious contamination comes from the water. People call that water pollution. Water pollution occurs anytime these contaminants enter into a water source such as the ocean , rivers , lakes , or ground water. While the government are trying to reduce the increase of water pollution, there are still a lot of people deliberately drop litter in river. Some rivers, especially the rivers in the city are very
polluted by waste water and solid, which runs way from factories, human activities and some activities. One of the impacts is that many fishes have been died and smell is so bad. Oil spills are also another source of water pollution. It drains the ocean of its resources .This makes a big loss of our food. More importantly, people who still use the water from ground water ,for instance well-water may have water poisoning.
The last contamination comes from soil. We call it soil pollution. The soil itself can also become polluted from dangerous materials such as heavy metals , pesticides , herbicides ,landfills. If toxins are spilled on the ground or if an underground storage tank leaks, soil can become contaminated. These contaminated soil are passed on to humans through direct contact or via food and water. Commercial farming is one of the leading causes of soil pollution. More and more farmers use pesticides and herbicides in order to increase productivity , so the soil pollution also increase . Also, increased soil erosion worldwide not only results in more soil being blown but spreading of disease microbes and various toxins as well. It can be said that our health are being threaten .
Environmental pollution is contamination of air, water and land from man-made waste. It is the problem we make ,so we have responsibility to solve . We protect environment , it means that we protect ourselves and probably our next generations .

Sunday, April 18, 2010

WORLD AIDS DAY

Do you know what happens every year on December 1 ? That is World AIDS Day. Nowadays ,there are about 40 millions people living with HIV/AIDS. It is a really alarming increase for world. While the world are trying to increase awareness about HIV and fight prejudice against people living with HIV, there are still many people who keep fear, discrimination ,unacceptable thoughts . In my opinion, we should respond World AIDS Day movement by the thing which we should not keep away from or despise the people who have been infected HIV .
Firstly ,many people consider that the people who are living with HIV are homosexuals, injecting drug user ,prostitute; therefore, they richly deserved to all that happened to them. I can understand because the people who have been infected HIV are predominantly these kind of people. However ,there are so many honest citizens who are harm by scoundrels, wives who are infected due to their husband or more unfortunately , the public health staffs or police officers who work wholeheartedly are infected HIV. Also , that many children have been infected even when they are unborn is really pitiful. We all fear HIV but it does not mean that those unlucky people are fearful. They are poor victims ,so we should sympathize with them.
Secondly, many people tend to keep away from the people living with HIV because they believe that it is the only way to prevent them from HIV. It is the common psychology of the people who are lucky not to have HIV. However ,it is the fear ,discrimination that fuel the persisting spread of HIV. It is a main reason why too many people are afraid to see a doctor to determine whether they have the disease. It helps make AIDS become the silent killer, because people fear the social disgrace of speaking about it, or taking easily available precautions. A person who died of AIDS left a letter in which he said “………everyone kept clear of us because they were afraid. My wife, son and I suffered from stigma, discrimination. Some of us had nowhere to stay, no care both mentally and physically. Do you know it is your discrimination that enables us to hide our state and to become the cause of many negative behaviors which continue to scatter HIV to others? No one knows if HIV can become your partner…..” It seems that the best way to prevent us from HIV is not keeping clear of people living with HIV.
Lastly, people usually consider that people living with HIV do nothing useful to society; therefore, their existence is not necessary. People who have AIDS are too weak to do anything because AIDS are eating them away. However , people who are living with HIV at the beginning period still live , work ,study as the normal people. They still contribute their brainpower and strength to society. Imagine that if about these 40 millions people who have HIV do not contribute anything to society , what will happen to the world ? More importantly, they are the most persuasive factors in the movement to appeal to everyone to protect himself from HIV. No one can know more clearly than the people who have been infected HIV about consequences that HIV is maltreating them day by day. They are propagandists who can make a tremendous impact on everyone so that the world can slow down the increase of HIV.
World AIDS Day is very meaningful. We who are not infected HIV are much luckier than people confronting HIV. Therefore , we should cut the unseen but full of thorns net which are woven by discrimination ,fear . Let` s give them encouragement to continue life by reducing cold looks, hurtful says and increasing warm compliments .

Monday, April 12, 2010

death penalty "just or unjust"

It is not unreasonable that death penalty is one of the punishments system of criminal law. Because there are many unforgivable crimes such as murder , drug dealing to which the punishments such as fine , prison for a period of time ,even life sentence cannot be considered deserved. However , the question: “death penalty is just or unjust ?” is still a controversial issue these days. Some people cannot accept death penalty because they think that it is cruel. Others consider death penalty as a just punishment. In my opinion, I strongly agree that death penalty is a just punishment and it can be a deterrent to crime.
Firstly , according to people who disapprove with death penalty, they believe that the relaxation of harsh laws has never led to increase in crime. Therefore, the “deterrent” argument is unreasonable and death penalty never protects anyone. I can understand their belief in criminals ` amendment. However ,have you ever thought that criminals are really grateful for humanity of law or they take advantage of the relaxation of laws to continue to commit crime. It is clear that relaxation of harsh laws does not work but death penalty is different. Death penalty can make criminals feel afraid in order not to commit crime or at least ,it gives the cold-blooded drugs dealer something to ponder about his behavior. Above all, it protects the most vulnerable members of society , young children , from brutal sex-maniacs.
Secondly, the anti-death penalty consider that hanging, electrocution, gas chamber, firing squad are cruel punishments ,unworthy of human beings. I think that humanity is also necessary. However , do you know what difference between human and animals is. That animals can eat their fellow-creature without thinking but human cannot is different. It is the cruelty that makes difference. People say that death penalty is cruel but why they do not think about what the criminals did such as a robber uses his cosh to batter a harmless old lady to death in order to rob her of her meager life-savings or the drug dealers who just take care of their money but others ` life or brutal sex-maniacs who just know theirs satisfaction. Is that cruel? All of these criminals do not care about consequences which they bring out to others . Why can we accept their existence ?
Lastly, people who cannot accept death penalty find it civilized for criminals to have life sentence. Life sentence sounds pretty horrible .However, it is more horrifying to think that the criminals can literally get away with murder. We all know that “life sentence” does not mean what it says . After 10 years or so of “good conduct” the criminals are free to return to society where they will live comfortably with the money of his crime before or they will go on committing crime until they are caught again . It is clear that life sentence does not solve problem . People find it civilized but do they know how a civilized society is .That society has justice .Have you ever thought of the justice for the victims and their family? Were the victims who did not even know the reason why they had to die consulted before life sentence decision for the criminals? The answer is no because they were dead.
Try thinking about a society without death penalty ,can you imagine how much crimes the criminals commit. Death penalty is the most effective punishment to deter crimes and only death penalty can bring the justice to victims and their family.

Monday, April 5, 2010

global warming

There has been a considerable increase in the average temperature of earth in recent years . This phenomenon is called Global Warming. The effects of global warming are numerous and various, ranging from the effects to the atmosphere, environment as well as the health life of human beings and animal. Three main effects which global warming leads to are climatic change , extinction of species and diseases.
Firstly,one of the major effects of global warming is the climatic change that is being absorbed on the earth. There are floods in the areas where the flood history is not very common.For example, in Cambodia, people have experienced unpredictable floods in last three years. There are droughts in places, which were having good rainfall.For example, in Australia. The atmosphere gets suddenly very harsh . The nature of earth's atmosphere is becoming even more unpredictable . This in turn brings about a variation in the biological systems essentially the crops, forests, oceans, fresh waterways, and grasslands. As these are the building and breeding grounds of life, the life on earth is getting affected.
Secondly, the effect of global warming is very evident on the animal kingdom also. Some animals have become extinct due to loss of their natural habitat or their inability to evolve to the rapid changes in the climate. Also, there is a change in their life style because of the changes in the seasons. The migrating birds have changed their time of travel and also their place of migration. Global Warming has been noticed in the behavior of the wild life. Major changes are seen in the animals as they react to the warmer environment, which are caused due to global warming. For example, many fish species are moving northward in search of cooler waters.
Lastly, the global warming is also responsible for the introduction of some new diseases. The bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures. The increase in temperature has led to increase in the microbes that cause diseases. A warmer world seems to be producing a sicker world. Global warming is particularly hard on people in poor countries because the places that have contributed the least to global warming are most vulnerable to the death and disease higher temperatures can bring . Many of the most important diseases in poor countries, from malaria to diarrhea and malnutrition, are highly sensitive to climate.
In short, global warming is a threat to our future because it brings out many consequences such as climatic change, extinction of species , diseases……So, we should do something to reduce global warming such as cleaning up air polution, saving money with energy…..so that we we have a comfortable living environment .

Sunday, March 28, 2010

where happiness comes from

Do you know what people would like to achieve most in their life ? Most of the people`answer is happiness . Happiness is more than just the absence of stress though the two can be related. It sounds simple but there are so many people that have been wondering if among money, success, satisfaction or peace of mind what really make them happy .In my view, freedom, true love and money will make me happy because that is all I need for my life.
First of all, a true love can bring me happiness . A true love means to love and to be loved .Love changes me dramatically. I had never thought about anything positively until I found my true love. When I feel love existing in me, I feel more optimistic . I can smile just by a little things such as watching children at play or smelling a rose .He brings joy to my life. Also, he is always by my side whenever I need him. My love,who is willing to spend hours just listening and sharing feeling with me , can release my burden.And, he brings out the best in me like no one else can do.All these things make me happy.
Secondly, what I really feel happy to have is freedom .In my view, freedom brings me the right to decide anything by myself .For example, if I don`t like doing something , I won`t or If I want to do something , I will.Because I belong to the liberal type,I don`t want to depend on someone or something .And , it is very uncomfortable to live under someone`s control.It is wonderful to be myself, to do whatever I want.So, my life will be happier if I have freedom.
Lastly, I am happy by the fact that I have a lot of money .People often say that “money cannot buy happiness” but I wonder that whether people feel happy or not when they have no money .In my opinion, they cannot live happily if they have no money because nowadays , money plays an important role in our life .It is very hard to live without money. I strongly agree that money can buy happiness because when I have money, I can do anything such as traveling, shopping, studying , helping poor people especially if I or my family`s members have disease which is difficult to cure ,I will have more opportunities to live than people who have no money.Money can bring many benefits that make me happy.
Different people find happiness in different ways. Consider the things we need to build a happy life seriously so that happiness will become easier for us to achieve . Besides money, freedom and love , there are still many things that can make the life happier .The most important thing is knowing what you want so that you have goals to try.

Monday, March 22, 2010

A rewarding experience

Have you ever thought about building your own computer ? It sounds Utopian for people who are not major in computing . In fact, it is not too difficult to build a personal computer if we have a manual to do it . In order to build a computer, we need to have mother board , processor , ram, video card, case, power supply , hard drive, optical drive, keyboard, mouse, speakers. Before we do anything inside computer, we always need to ground ourselves , and the easy way to do this is working on grounded surface.By connecting ourselves to ground , we eliminate the possibility of static shock. Clearly, there are three main steps to build our own computer.
At the first steps, we need to add processor and ram to the mother board.First, we will need to unwrap the mother board and processor which comes with own fan.The processor will have one marked corner and socket. We will align the corners and drop the processor into the socket.Next, we need to put the fan in place, cinch it down with flanges on either side and lock it with a cam. We need to connect the power lead for the fan to the mother board.Next, we will install the ram with firm pressure. Look on the mother board for the slot marked “one” and firmly press the ram module into it.Now our mother board is ready to put in the case.
At these second steps, we will take all these parts inside the case.We need to install the power supply, cover plate, mother board, standoffs to hold the mother board in place. We also need to connect some wires to the mother board,exactly 15 wires.Cover plate comes with mother board for its back connector. The case already has a hole cut in it for the plate, so we will hear a click when it is in place.The plate needs to be away from the case` surface so that none of its connectors touch the case. We will accomplish this by placing spacers , which are also included with mother board.Because every mother board is different so the challenge is to get the mother board into the case and see which screw holes on the mother board are going to actually match up with the pre-drilled holes in the case. Next, make sure that the mother board lines up with plate and the holes line up with spacers. Be careful when installing screws . If we drop them into the case, they can damage the wires on the mother board.Now, we can install the power supply, the power supply has two sides.The fan side faces outside the case, the wire side faces inside.We will use screws to secure power supply. There will be an obvious connector for the mother board . Another small four pin connector gives power to CPU. Both connectors will have obvious ports .We will be left with 15 wires, it is a little confusing but we will use the manual to connect remaining wires .Also, we will connect case fan by using available wires from power supply.
At these last steps , we are installing hard drive and CD drive.The case has a removable bracket which lines up with four holes on the hard drive. Now, we will screw the hard drive into the bracket and slide hard disk into appropriate slot. Then we will connect hard disk to the power by using one of the connectors off of the power supply. Now, we will install the cable, we will align red stripe with pin one on mother board and one side of I D E slot will be marked as pin one. Next, we will install the CD drive. Again, we need to set the jumpers correctly.We need to slide the drive in and screw it into place. We have to make sure that the drive is aligned properly .Next, we can use any available power connector to connect drive .We can use supplied cable but we have to make sure that align red stripe with pin one.Next, we will connect the audio for the CD drive and lastly, we will install optical A G P video card.
Luckily, computers are surprisingly easy to build.In addition, we will not only understand our own computer completely but also save some money.Last but not least, building a computer by ourselves can be a very rewarding experience.

Sunday, March 14, 2010

out line

OUTLINE
The introduction
Hook : The value of anything in life is evaluated by its qualities . So is human.
Background :the viewpoint of bad qualities and good qualities.
Thesis: In my opinion, a good human needs to equip his qualities at least sympathy, integrity and tolerance because these qualities will help him raise his value.
Body paragraphs
Body paragraph 1
Topic sentence: One of the most important of all human qualities is sympathy
Supporting details :people need sympathy, help share feeling of sorrow, lending emotional support, sympathetic words or kind acts
Concluding sentence:if we sympathize someone, we are also sympathized one day
Body paragraph 2
Topic: that a good human cannot help having is integrity
Supporting details: honesty, goodness, can decide to have, difficult to have integrity,training himself, respect for others , crimes due to lack of integrity
Concluding:Besides having that self- respect that integrity gives to those who have it
Body paragraph 3
Topic: one of the most difficult of human qualities is tolerance
Supporting details: feel angry when being offended, lose control, keep calm , forget, forgive
Concluding: If a person asks for forgiveness, it is better to forgive
The conclusion