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1.Everyone has their own study habits which are suitable to their routines. Personally, I have to go to school in the morning on weekdays, therefore, I spend the afternoon doing the homework. At night, after eating dinner, I often relax for a while by surfing Facebook or Youtube, and then come back to my desk. If the homework is completed, I normally practice some extra English exercises. My mother has bought several English learning books for me. On Monday and Tuesday, I have an extra course in Mathematics, so I’m a little bit busy those days. In addition, being interested in editing videos, I usually spend my free time watching videos on Youtube about this topic and practicing it myself.
2.My clothing style is pretty simple. I like comfort so I opt for a t-shirt and jeans. This is also my favorite outfit. I have quite a few t-shirts. My favorite colors are black and white because it’s pretty basic and easy to match. When I’m at home, I mostly just wear T-shirts. However, when I go to school I will dress more politely. I wear a shirt and shoes. There’s a t-shirt that I really like. It is quite wide. It is black and has no other textures. Sleeves are wide and elbow-length. This is a gift my brother bought me when I was 16 years old. I usually wear it on outings with friends, when traveling or going out for coffee. I have a lot of pictures taken with this shirt. My favorite pants are wide leg pants. I totally match it with the t-shirt. It looks great. I like my current clothing style and I don’t think I have a reason to change it yet.
Each summer vacation, I am taken to the countryside by my parents so as to relax after a hard working term. I really like the life here. In rural areas, there are not as many houses and vehicles as in the city. As the result, the atmosphere is quite fresh and cool. Most people mainly travel by bicycle or on foot. The landscape is very poetic and picturesque. There are many gardens, rivers here. We can grow vegetables or chickens, fish,... on our own. The local are very kind, generous and friendly. They are willing to give directions to strangers and help each other in difficult times. Whenever we are away, we can relievedly ask our neighbors to keep our houses and children . Another thing that we especially like is that in the countryside, we are reconciled to nature so that the soul is always open and the body is healthy. Living in the countryside is fun and wonderful. In the future, I really want to live here.
In the modern life, there is an increase in the people leave the countryside and migrate to the city. The objective reason is that in the city, it brings them comfortable life and favorite job. Subjective causes are due to the following disadvantages rural areas bring about push residents away. To begin with, there is no denial that rural infrastructure is not modern and advanced. Roads are quite narrow and degraded. Schools, hospitals are not cared much and remodeled. Especially the quality teachers and doctors here are just little so the inhabitants have less opportunity to develop in all way than in the urban area. Last but not least, the biggest disadvantage in rural areas is that job opportunities are so race. The main job is craft, farming, which bring a relatively small income. With that salary, we can only live through the day, not afford for services, shopping, entertainment… In conclusion, besides the positive aspects, life in the countryside is very much. disadvantage. We all need to consider carefully before choosing where to live.
There are a lot of disadvantages of living in a big city, but air pollution, traffic jam, and the high living standard are three main disadvantages. Firstly, air pollution is a big disadvantage that people living in big cities have to face. Big cities attract a lot of investments of inside and outside country, so the number of factories is increasing fast. This makes the air extremely polluted by smoke from factories, trucks, and motorbikes. As a result, more and more people get many serious diseases, such as lung cancer, tuberculosis and so on. Next is traffic jam. There are a lot of people and transportation in big cities, so traffic jam is an unavoidable problem. People can not go to work on time because they are always stuck for hours in rush hour. Besides, transport system which is stuck will cause a lot of serious problems. For example, ambulance and fire engine can not get in time to complete duty, so there is a big loss of humans and property. It also takes a lot of money of producers when their goods do not get in time. Lastly, the living standard in big cities is very high. Nowadays, the development of big cites is faster and faster, so these big cities become big economic centers of country. Because of that, public services such as health service, postal service, etc cost a lot. It will be difficult for the poor and workers to live in big cities because they have to pay too much for public services while their salary is too low. In conclusion, it is not easy to live in a big city.
Life in the city has long been a hankering for many people because of the benefits it brings. First, it provides us with many employment opportunities to increase income, feed ourselves and our families. There are a lot of kind of jobs from teachers, maketing, designers, ... which need a great human resource. Therefore, people feel easy to find a suitable job. In addition, the quality of life in cities is much better than in rural areas. The infrastructure is modern and there are full of services for the people. More and more entertainment centers, commercial centers, hospitals and schools are built. It means that people's health is better and their needs for entertainment are better. However, besides these positive aspects, the city still has some drawbacks. First of all, because of many factories, transportation and large population, the air here is very polluted, the road is full of smoke and dust, as a result it makes a bad effect on people's health. In addition, due to immigration, so many people rushed to the city so the cost of services and equipment is quite expensive. This is also the cause of a number of social evils such as theft, addiction, gambling, ... Today there are many large cities grow up, more and more people migrate in the city, but besides the positive aspects, the city still has limitations that no one wishes. Everyone should take consideration before deciding where to live.
Lời giải:
Vì $a$ là số nguyên tố lớn hơn $3$ nên $a$ có thể có dạng $6k+1, 6k+5$ với $k\in\mathbb{N}$
Nếu $a=6k+5\Rightarrow 10a+1=10(6k+5)+1=60k+51=3(20k+17)\vdots 3$ và $10a+1>3$ nên $10a+1$ không thể là số nguyên tố (trái giá thiết)
Do đó $a=6k+1$
Khi đó: $5a+1=5(6k+1)+1=6(5k+1)\vdots 6$ (đpcm)
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Life in the countryside is quite different from that in the city. First, it is the atmosphere that differentiates the two living environments. In the countryside, the air and water are much fresher and safer, thus living there is totally comfortable and beneficial for our health. In contrast, people who live in big cities suffer from health problems and diseases related to poor air quality and sources of polluted water. Second, prices and costs of living are cheaper in the countryside than in big cities. Vegetables, fruits and meats are home-grown and home-produced. However, in cities, people have to go shopping for them. Third, the interpersional relationships are more harmonious and friendlier. Those who live in the same village, especially neighbours, for example, know each other very well. There is a close-knit cooperation between people in working and many other daily activities. On the contrary, negatively speaking, city people only live and know their own business. They hardly care about who their neighbours are and what they do. Sending a helping hand, as a result, is never seen among city people. In conclusion, although the city life holds many advantages that make life more convenient, I always prefer living in the countryside where the environment is nice, the costs of living is affordable, and the intimate relationships among people are really meaningful. Personally, If I had a choice between a villa in the city and a small house with garden surrounding, the latter would seem better to me.
Life in the village is simple and warm! People here legs covered their faces mud but loyal and beautiful, lasting impression. The children here do this joke sick child mice skinny, black, curly hair, bare ride runs between lunch fields. Every morning, I saw her in the village to the river carrying water, laundry, wash the rice, the farmer ... The field, rice paddy. The students go to school. The vegetables and flowers she brought to market. At noon, the farmer resting, sitting beneath a banyan tree and enlist dinner nap a few minutes. This time the students had gone home. Afternoon, I found out the first lane 1 basket she brought only a few bundles left over after selling vegetables at the market, the buffalo farmer after 1 business day. Buffalo designs ample tread it looks majestic. Children flying a kite to the kite fold, brought home and agreed to meet the next day! Every evening, the breeze through blow away the smell of rice fat fat. Oh, I love this peaceful life too, it's a far cry from one life is full of sound in the city, do not take well 1 sec quiet!
Tôi nghĩ, mặc đồng phục ở trường có nhiều lợi ích cho học sinh. Thứ nhất, mặc đồng phục sẽ giúp các học sinh không bị phân biệt giàu nghèo. Học sinh giàu hay nghèo đều phải mặc quần áo như nhau tới trường, và những học sinh nghèo sẽ không bị mặc cảm với các bạn cùng lứa. Thứ hai, học sinh mặc đồng phục nhìn rất đẹp và quyến rũ. Những bộ đồng phục đều được thiết kế rất đẹp để học sinh có thể thoải mái khi mặc. Thứ ba, học sinh sẽ không mất thời gian cho việc chọn quần áo tới trường. Điều này sẽ giúp học sinh chuyên tâm vào việc học thay vì suy nghĩ mình sẽ mặc như thế nào, mặc cái gì tới trường. Cuối cùng, đồng phục sẽ giúp học sinh tiết kiệm tiền mua sắm. Họ sẽ không tiêu quá nhiều tiền để mua quần áo vì họ luôn luôn phải mặc đồng phục tới trường. Nói tóm lại, Mặc đồng phục rất có lợi cho học sinh.
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