*mình viết theo tiêu chí của 1 bài hùng biện nên sẽ tránh những câu quá formal nha*

I think I am a lucky girl cos I have a happy family. Both my dad and my mom are successful in their career. They work in the same hospital as my dad is a doctor and my mom is a nurse. But they are too workaholic so that they don't have much time to spend on me. I hope they will prepare the time suitably to play with me - a student studying in a secondary school.

ko sao co gang la duoc chi can viet co dau cham dau phay la duoc cung ko kho lam

- theo chị thì viết văn tiếng anh không nhất thiết phải giống bài tiếng việt, nhưng nếu em chưa thành thạo thì có thể dựa vào bài tiếng việt để thay từ rồi viết thành đoạn văn.

- nếu viết một đoạn văn về gia đình thì em chỉ cần viết như là em đang nói với mội người bạn  của em về gia đình của mình.

Tham khảo nha:

There are four people in my family: my parents, my younger sister and I. My father is a 45-year-old engineer. He spends most of his time in the building sites. That’s why he has a tanned skin. As soon as he comes home, he turns on the television to watch the news, relaxes for a while and then he takes a shower. In case my mother doesn’t cook for the dinner yet, my father is very happy to join hand and help her. Talk about my mother, she is a 40-year-old primary school teacher. In every morning, she is the one who wakes up earliest to prepare the breakfast, clothes and necessary things for my father, me and my sister. After we leave home to work or study, my mother will have a quick breakfast and drive to the primary school. After school, she runs fast to the market, buys some fresh food and backs to home to cook lunch. My father doesn’t come home in the noon so only three of us eat and talk to each other during lunch. However, the lunch is still prepared very scrupulous. In general, my mother is a gentel caring woman and sometimes she is very strict. I have a younger sister who will be 8 years old in the next October. My sister is pretty, docile and hard study. On every weekend, I take her to the park to have fun and we will buy some tasty ice creams. We quite close and sometimes she makes me very angry because of her negligent habit. The last person in my family is me. I am studying in the second year of Business Administration major at Hong Bang University. My schedule is changed frequently and I am also trying to get a scholarship to study abroad in Canada next year so I don’t spend much time to my family. But any time when I am free I try to help my mother in household chorces and take care of my sister. In my family, each person has a different responsibility but we always stand together to enjoy happiness moments, overcome the difficult time and solve the problems. I understand that there is nothing that is more important than my family. I love my parents and my lovely sister so much.

Dịch: Gia đình tôi gồm có 4 người: bố mẹ tôi, em gái tôi và tôi. Bố tôi là một kĩ sư xây dựng 45 tuổi. Hầu hết thời gian trong ngày ông ở công trường. Đó là lý do vì sao ông có làn da rám nắng. Ngay khi về đến nhà, ông ấy bật tivi lên để nghe thời sự, thư giãn và sau đó thì đi tắm. Trong trường hợp mẹ tôi vẫn chưa nấu xong bữa tối thì bố tôi sẽ rất vui vẻ để phụ một tay. Nói về mẹ tôi, bà ấy là một giáo viên tiểu học 40 tuổi. Vào mỗi buổi sáng, mẹ tôi luôn là người dậy sớm nhất để chuẩn bị bữa sáng, quần áo và những đồ dùng cần thiết cho bố con tôi. Sau khi chúng tôi đã rời khỏi nhà để đi làm hay đi học mẹ tôi mới dùng vội bữa sáng và chạy đến trường tiểu học. Sau khi tan trường mẹ tôi chạy thật nhanh đến chợ mua những thực phẩm tươi rồi về nhà nấu bữa trưa. Bố tôi không về nhà vào buổi trưa nên chỉ có ba mẹ con chúng tôi ăn uống và nói chuyện suốt bữa trưa. Dù vậy, bữa cơm vẫn được chuẩn bị rất chu đáo. Nói chung, mẹ tôi là một phụ nữ hiền lành đảm đang và đôi khi rất nghiêm khắc. Tôi có một em gái sẽ tròn 8 tuổi vào tháng 11 tới. Nó rất dễ thương, ngoan ngoãn và chăm chỉ học tập. Vào mỗi dịp cuối tuần tôi hay dẫn em đến công viên giải trí và đi ăn những cây kem tươi ngon. Chúng tôi khá thân thiết nhưng đôi khi nó làm tôi phát cáu bởi vì thói quen cẩu thả của mình. Người cuối cùng trong gia đình tôi chính là tôi. Tôi đang học năm thứ hai ngành Quản Trị Kinh Doanh tại đại học Hồng Bàng. Lịch học của tôi thường xuyên thay đổi và tôi đang cố để giành được học bổng du học Canada trong năm tới nên tôi không dành nhiều thời gian cho gia đình. Nhưng bất kì khi nào rảnh tôi luôn phụ mẹ công việc nhà và chăm sóc em gái. Trong gia đình tôi mỗi người đều có một trách nhiệm riêng nhưng chúng tôi luôn sát cánh bên nhau để tận hưởng những giây phút hạnh phúc, vượt qua thời gian khó khăn và cùng giải quyết vấn đề. Tôi hiểu rằng không có điều gì quan trọng hơn gia đình. Tôi yêu bố mẹ và cô em gái dễ thương rất nhiều.

Hello, everyone! I’m glad to introduce my family. There are four people, including Mom, Dad, one brother and me. My mother’s name is Mai, and she is 50 years old. She is a beautiful woman with long black hair. My father’s name is Truong, and he is 55 years old. And my brother is Duy. He is 17 years old, and now he is a student of Minh Khai High School. I always love my family, even in my dream.

(Xin chào mọi người! Tôi rất vui khi được giới thiệu về gia đình mình, gồm có 4 thành viên, bao gồm bố, mẹ, 1 em trai và tôi. Mẹ tôi tên Mai,và mẹ 50 tuổi. Bà ấy là một người phụ nữ rất xinh đẹp với mái tóc đen dài. Bố tôi tên là Trường, bố tôi 55 tuổi. Và em trai tôi tên Duy. Cậu ấy 17 tuổi, hiện đang là học sinh trường trung học Minh Khai. Tôi luôn luôn yêu thương gia đình mình, ngay cả trong giấc mơ).

As a traditional family in Vietnam, I have a big one. My family has 5 members, including Mom, Dad, Grandma, sister, and me. My mom’s name is Giang. She has long hair and black eyes. She is a teacher. My Dad’s name is Trung. He is tall and very strong. His job is doctor. For me, my mom is the most beautiful woman, and my dad is the most wonderful man. And my grandma’s name is Tam. She is 95 years old, and next 5 years, we will organize the 100th longevity wishing ceremony, and I look forward to taking part in this ceremony. Besides, another woman who I love so much is my sister. Her name is Linh. She is 26 years old, and she is a beautiful woman Mom. Now, she is living in Ha Noi capital, because of her jobs. I really love my family, and I hope that we are always together anyway.

Im from viet nam

Im from America

hi , My name is ...(điền tên e vô)! i'm from Vietnam and i live in Hanoi,Phutho,... ! my family are 3,4,5,... people!  còn nhiều cái nữa cơ nhma đang bí ngôn í

- Chắc là gọi thầy Nguyễn Việt Lâm thôi :)

1.

\(2n+1\) luôn lẻ \(\Rightarrow2n+1=\left(2a+1\right)^2=4a^2+4a+1\Rightarrow n=2a\left(a+1\right)\)

\(\Rightarrow n\) chẵn \(\Rightarrow n+1\) lẻ \(\Rightarrow\) là số chính phương lẻ

\(\Rightarrow n+1=\left(2b+1\right)^2=4b^2+4b+1\)

\(\Rightarrow n=4b\left(b+1\right)\)

Mà \(b\left(b+1\right)\) là tích 2 số tự nhiên liên tiếp \(\Rightarrow\) luôn chẵn

\(\Rightarrow4b\left(b+1\right)⋮8\Rightarrow n⋮8\)

Mặt khác số chính phương chia 3 chỉ có các số dư 0 và 1

Mà \(\left(n+1\right)+\left(2n+1\right)=3n+2\) chia 3 dư 2

\(\Rightarrow n+1\) và \(2n+1\) đều chia 3 dư 1

\(\Rightarrow n⋮3\)

\(\Rightarrow n⋮24\) do 3 và 8 nguyên tố cùng nhau

2.

Lý luận tương tự bài 1, ta được n chẵn

Mặt khác các số chính phương chia 5 chỉ có các số dư 0, 1, 4

Mà: \(\left(2n+1\right)+\left(3n+1\right)=5n+2\) chia 5 dư 2

\(\Rightarrow2n+1\) và \(3n+1\) đều chia 5 dư 1

\(\Rightarrow2n⋮5\Rightarrow n⋮5\) (do 2 và 5 nguyên tố cùng nhau)

\(\Rightarrow n=5k\Rightarrow6n+5=5\left(6k+1\right)\)

- TH1: \(k=0\Rightarrow n=0\Rightarrow6n+5\) là SNT (thỏa mãn)

- TH2: \(k>0\Rightarrow6k+1>0\Rightarrow6n+5\) có 2 ước dương lớn hơn 1 \(\Rightarrow\) không là SNT (loại)

Vậy \(n=0\) là giá trị duy nhất thỏa mãn yêu cầu

My name is Tran and I’m a Vietnamese. I'm sixteen years old. I live in Viet Nam !!~ 

I have a big family with six people. I have two sisters and a brother. My sisters are older and my brother is younger than me. My father is a teacher at a secondary school. He has worked for 35 years in the field and he is my biggest role model in life. My mother is a housewife. She is nice and she is really good at cooking. I love my family so much.
I’m a generous and easy-going person but when it comes to work I’m a competitive perfectionist. I’m also an optimis and outgoing person so I have many friends and other social relationships. I enjoy reading, writing and doing math. I love My Family <3

Dịch:

I have a big family which gives me everything that I need. My parents have two children, and we also live with our grandparents. Both of my parents have to work very hard to support this family, so they rarely have time to play with us. I am now a grown up boy, so I take the responsibility to take care of my little sister and grandparents when my parents are not home. My father is a manager of a Sell Apartment, and my mother works at the bank. They both have medium height and black hair, and they are very hard - working employees. They usually leave early in the morning without having breakfast at home, and my grandmother is the one who cooks for me and my sister. Both of them are just 75 and very healthy, they have grey hair and some wrinkles as well as freckles on their faces. They spend their free time to play with my sister whenever I go to school. I travel to school by bike, and I am a pretty good student. When I am home, I help doing the house chores, help my grandmother preparing the meals, and look after the baby. My hobbies are playing sports, but I only go out and play with my friends when both of my parents are at home at the weekends. My favorite time of the day is dinner time, because the whole family will all gather after a long day staying out. We spend that little time to talk about our days and share funny stories. Although my parents do not have much time for us, I still love and be thankful to have such a great family that.

Tiếng Anh

Hi everyone. My name is Linh. I was born in Dong Da District, Hanoi. I live here from a child with my parents. At present, I’m 11 years old and I’m studying in 6A at ABC Primary school. My family has 4 people, including my parents, my brother and me. We’re willing to help together and my family is very happy. To my classmate, I’m active and humorous child so they love me so much. I have a lot of friends in my school. Besides that I’m good at Maths and English. I usually obtain many high scores in this subjects. I’m proud of their. I’m a big fan of detective stories. In my free time, I always read them with intensive passion. In the future, I also want to become a detective as Sherlock Holmes.

Tiếng Việt 

Xin chào mọi người. Tên tôi là Linh. Tôi sinh ra ở quận Đống Đa, Hà Nội. Tôi sống ở đây từ nhỏ cùng với bố mẹ. Hiện tại, tôi 11 tuổi và học ở lớp 6A trường THCS ABC. Gia đình tôi có 4 người gồm bố mẹ, anh trai và tôi. Chúng tôi luôn sẵn sàng giúp đỡ lẫn nhau và gia đình tôi rất hạnh phúc. Đối với bạn cùng lớp, tôi là 1 đứa trẻ năng động và hài hước vì thế họ quý tôi lắm. Tôi có rất nhiều bạn ở trường. Bên cạnh đó, tôi học rất giỏi ở môn Toán và Tiếng Anh. Tôi thường xuyên đạt được nhiều điểm cao ở các môn học này. Tôi tự hào về điều đó. Tôi là 1 người hâm mộ lớn của truyện trinh thám. Vào lúc rảnh rỗi, tôi luôn đọc chúng với niềm đam mê mãnh liệt. Trong tương lai, tôi cũng muốn trở thành 1 thám tử như Sherlock Holmes.

There are several heritage and splendid sights in Vietnam. Especially, Da Nang is one of the most popular place for both Vietnamese and foreign tourist. Da Nang includes sea, Son Tra island, mountain and beautiful landscape. There are a lot of interesting places such as: Asia entertainment park, Ba Na hill, Hoi An ancient town, My Khe beach, museum of art as well as famous bridges. The city is well known for its fresh atmosphere, friendly people and security. The weather is glorious all the year and it brings this city many delicacies from sea and perfect living condition for people, specifically the elder. Visiting Da Nang, I am really impressed by Ba Na hill containing longest cable car from land to the top of the mountain. It is an unforgettable experience for visitors to observe breathtaking sight and picturesque scene. Beside, the beaches have long golden sand, deep blue sea in addition huge bunches of fresh coconut. Tourist has a chance to relax, enjoy the peace and nature, play aqua sport. Moreover, the city has many big bridges : Dragon bridge, Quay bridge and a large outdoor entertainment named Asia park. Additionally, there are a lot of delicious typical dishes such as: Quang noodle, xeo cake, pork pan-cake and others. Da Nang is preserved for its natural beauty; therefore, there is an increasing number of tourists come here. Consequently, it leads to polluted environment, natural damage and other social problem. However, the security of the city is good that there is no street robbery. Hence, Da Nang is voted to be one of the most worth-living cities in Vietnam. In the future, I hope Da Nang will develop and become more popular over the world.

K nha!

There are several heritage and splendid sights in Vietnam. Especially, Da Nang is one of the most popular place for both Vietnamese and foreign tourist. Da Nang includes sea, Son Tra island, mountain and beautiful landscape. There are a lot of interesting places such as: Asia entertainment park, Ba Na hill, Hoi An ancient town, My Khe beach, museum of art as well as famous bridges. The city is well known for its fresh atmosphere, friendly people and security. The weather is glorious all the year and it brings this city many delicacies from sea and perfect living condition for people, specifically the elder. Visiting Da Nang, I am really impressed by Ba Na hill containing longest cable car from land to the top of the mountain. It is an unforgettable experience for visitors to observe breathtaking sight and picturesque scene. Beside, the beaches have long golden sand, deep blue sea in addition huge bunches of fresh coconut. Tourist has a chance to relax, enjoy the peace and nature, play aqua sport. Moreover, the city has many big bridges : Dragon bridge, Quay bridge and a large outdoor entertainment named Asia park. Additionally, there are a lot of delicious typical dishes such as: Quang noodle, xeo cake, pork pan-cake and others. Da Nang is preserved for its natural beauty; therefore, there is an increasing number of tourists come here. Consequently, it leads to polluted environment, natural damage and other social problem. However, the security of the city is good that there is no street robbery. Hence, Da Nang is voted to be one of the most worth-living cities in Vietnam. In the future, I hope Da Nang will develop and become more popular over the world.

K nha!

Bài 1 : 

In Vietnam, there are sixty-four provinces, each with a different name, sometimes associated with the traditions of the province, sometimes called by province characteriss. And there is a very special city, not only because of its beauty, its poe beauty, not only by its cultural traditions, but because of its name, Ho Chi Minh City, The name of the great leader of Vietnam, so that when it comes to Ho Chi Minh City, people will feel something very warm, very dear, even if never arrived.

Ho Chi Minh City is one of the two largest economic, social and cultural centers in Vietnam, with Hanoi capital, Ho Chi Minh City is often associated with a bustling atmosphere the flower of the metropolis. Ho Chi Minh City, formerly known as Saigon, is a centrally-governed city, which is also the city with the largest population size and urbanization rate in the country, Ho Chi Minh City. It is one of the largest cities in the country, with an area of ​​approximately 2,095.06 square kilometers consisting of nineteen counties and five districts.
Ho Chi Minh City is first known as the largest economic and polial center of the country. This is reflected in the GDP structure and its contribution to the overall development of the country, which accounts for about twenty percent of the GDP structure of the country. In Ho Chi Minh City there are many large industrial centers, with many types of economic and service development. On the other hand, Ho Chi Minh City is located in the transshipment area between the big regions of the country, namely the South West and the South East. Therefore, Ho Chi Minh City has good conditions for commodity exchange and development cooperation. economics between regions. Also because of the great development of this city that has attracted a lot of labor here, they came from all over the place
domain of the country.
Ho Chi Minh City is the country with the highest population size and density. According to the statiss of the population, the population of Ho Chi Minh City in 2011 reached 7,521,138 people. Meanwhile, if you include people who do not register to stay may be worth up to ten million. This population density creates conditions for the city to have abundant human resources and conditions for the development of economic sectors. But the reverse side of it is not without, the overcrowding leads to population explosion, unemployment, underemployment, and difficulties in population management and job creation, not to mention the emergence of social evils, environmental pollution.
In terms of geographical location, Ho Chi Minh City is one of the cities in the South East, also the city plays the core role, the main force in the South East. Because it is located in the southern part of the country, the weather in Ho Chi Minh City is hot all year round. During the hot and sunny days, the weather is very cool and favorable for the development of industrial crops. This is also the region with the least natural calamities in the country. Ho Chi Minh City is accreted by the fertile Mekong River, creating a large Mekong Delta region that is conducive to the development of agricultural production. So Ho Chi Minh City is the leading city in terms of average food per capita, not only provide food for people in the country but also for export. High economic returns.

It is the geographical location and benefits that this location brings to Ho Chi Minh City. Also in terms of historical tradition, this is also a city with a tradition in the fight against foreign invaders. Whenever there are foreign invaders, Ho Chi Minh City is always one of the three leading cities in the struggling country, together with Hanoi and Hue City. In parular, in the struggle against American imperialism, Ho Chi Minh City, then known as Saigon, was the center of major American military and military forces. That is why this is the focal point of the struggles, which witness all the ups and downs of Vietnamese history. Congress in 1976 decided to rename Saigon into Ho Chi Minh City, city named Uncle.

Thus, Ho Chi Minh City is one of the two largest centers of economics, polis, culture and education of Vietnam, together with the capital of Hanoi, Ho Chi Minh City has been developing. Rapid economic development, contributing greatly to the development of the country of Vietnam. Not only is the center of economic development, Ho Chi Minh City is also a city rich in historical traditions as well as a long-standing cultural tradition.