The difference of some words

1) The difference among when, while, and as.

2) The difference between who and whom.

3) The difference between which and that when they are used in subordinate clauses.

4) The difference between to and for.

5) The difference among except, besides, apart from, other than and in addition to.

Please tell me the differences. Thank you in advance!

Someone Like You This morning, I watched a music video about Adele, who is a popular British singer. In this video, she sang one of her most well-known songs called "Someone Like You" in British Royal Albert Hall. She told us the stories behind this song. The song was written to express the feelings of missing her ex-lover and to cherish the memories of their beautiful love. However, they don't end up together in the end. It doesn't mean they should hate each other when they break up. From the song, We are able to see that Adele is always loving her ex-boyfriend. When the rhythm of "Someone Like You" rang and thousands of people sang together, She can't hold her tears anymore. There is a line in the song, "Please don't forget me. I beg. I'll remember you said." It makes me feel heartboken. If someone has an unforgetable and painful memory, it may cause him or her to be moved to tears. I recall a saying, " Wishing you happiness is a lie, but wishing you happiness is ture." Love is not possession, but is blessing. I won't find someone like you, because I don't need another heartache. I will find someone like you, because I can't forget you and I really love you.

English Practice 2017-04-09 1) Since I decided to lose my weight, It has been over a week until now. In last week, I have done physical exercises and have eaten healthy food everyday. It was a tough time. Because I have done no physical exercise for a long time before last week. After everyday's exercises, I felt very exhausted and every piece of muscle of my body was stiff and sore. Especially, when I was walking and going downstairs, it was very painful. However, with the continuation of working out, the bad feelings have gone. I feel more and more comfortable to do those exercises now. As long as I stick to do this for a week, a month, or even a year, I believe I will be successful in losing weight. After finishing this English practice, I will start my physical exercises again. 2) I like photography. When I reach a new place, I will take many photos of it to record it's beauty. Man's memory is short. We may usually forget the exciting monments and the beautiful things in our lives, as we grows older. What a pity! We may feel our lives is blank, when we become very old. At this time, a photo album will recall your unforgetable memories which makes you laugh or cry. It will be very happy and moving. So I like recording my life's every monmemts by a camera. It is a kind of expression of beauty and life attitude. Additionally, I am also willing to share what I have seen and have hearded with others to bring my happiness to him or her. So I decided to buy a new camera recently and I have settled on a SONY camera. But I feel it is a bit expensive for me to afford. I don't want to ask my parents for help, because I am an adult now and it is very shameful to ask parents for money. Therefore, I will do some part-time jobs to earn some money after school. Hope my wish will come ture.

Is couchsurfing safe when someone is traveling in foreign countries alone? Do you have such experience? And how are your feelings?

What's the best way to lose weight? I am a bit fat. I have tried a lot of methods to lose my weight. However, they didn't work. So do you have some good advice for losing weight?

Fighting I am a bit fat and don't have a good-looking body shape. I am 175 cm, while my weight is 80 kg. The IBM is quite higher than the standard. So recently, I decide to lose some weight. I plan to run for one hour everyday. After that, I will do some strength exercises. Actually, I have tried to lose my weight for many times in past three years. However, it didn't work. What a shame! I think the key reason is that I didn't do enough exercises and paid no attention to my diet. I hope I will be successful to own a good body shape this time. No matter how tough and painful the process is, I will stick to it. Fighting!

An abstract of my paper. Please help me correct it. Thanck you! As fossil energy is decreasing continously and people’s consciousness of environmental protection is ever increasing, the recycling of waste energy has received great attention. Nowadays, the cooling water of the cooling tower systems of oil refineries, chemical plants, metallurgical plants, and other industries remains great waste engery after flowing through heat users. Generally, the solution of recycling the waste energy is to use throttle valves at the inlets of cooling towers to comsume the remaining energy so that it can fix the requirement of spraying in cooling towers. Obviously, the method is a waste of enery. Many domestic reseachers has done some relative studies on the recycling of waste energy in cooling towers. However, these researches don’t reach the expectation of energy solving in practical appications. The present study uses a hydraulic turbine to transform the waste energy in cooling tower systems to electricity, at the same time, applys the intellectual power management technology to control the fans of cooling towers to comsume the electricity generated by the hydraulic turbine priorly. If the power can’t satisfy the need of fans, the power grid will provide the extra power. The technology can provide the fans with stable and enough power under different flow conditions so that it can achieve the wide use of waste energy. The generator unit of the technology applys a permanent magnet synchronous motor for energy efficiency. The hydraulic turbine is set at the pipeline outside the cooling towers. When the hydraulic turbine needs an overhaul, we can let the cooling water flow turn to another pipeline so that it won’t influence the operation of the whole cooling system. Additionally, it also won’t affect the ventilation in cooling towers, because the hydraulic turbine is placed outside the cooling tower and won’t produce resistance. The whole reformed cooling system has been established, and the relative experiments have been carried out under different operating conditions. According to the research results, we get the good feasibility of the technology. It makes the recycling of waste energy in cooling systems doesn’t limit by seasons and achieves the adaquate use of waste energy. It proves the intellectual power management system is effective and reliable. The present research analyses the economy of the reformed part in the end.

How did you know italki? What do you think of it? I knew italki from a British uploader who always uploads his videos on Chinese websites. I have used italki for about a year. Although it has something imperfect, I feel it is a really good language learning website. I have learnt a lot on it.