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Covid 19 is an epidemic that has troubled many people. Our studies and lives are also affected. We are not allowed to go to school, causing us to lose knowledge. We have to learn online, although it's effective, not everyone can learn it. Our lives are also disrupted a lot. We are not allowed to gather. Not allowed to stand close to talk to each other, creating distance between people. Some of you, just sitting at home and watching Phones and computers, greatly affect your health. So let's fight against Covid 19 together
The COVID-19 epidemic is a dangerous disease and they are raging in all over the world.First, with a very high rate of spread, people will be very susceptible to infection. causing a lot of problems, it is economically difficult and causes millions of deaths, so doctors have to work day and night to be able to help patients in dangerous epidemic situations such as Therefore, everyone should wash their hands clean.Always wear a mask when going out and avoid contact with epidemic areas. I hope the epidemic will soon end so that society can live a normal life
One of the undesirable aspects of tourism development is environmental degradation in destinations. Firstly, more and more natural resources such as water, energy, and soil are exploited due to the increase in visitor numbers, which may lead to the depletion of local resources. Secondly, pollution is also a serious issue making the authorities worried. Obviously, beverage bottles or cans and plastic bags are freely disposed of at the tourist sites, posing a threat to the natural environment. Besides, the growth of vehicles to meet travel demand accidentally triggers or worsens traffic congestion, air and noise pollution in the overcrowded regions. Another bad influence of tourism is the devastation of the wildlife. The habitats of many wild plants and animals have been gradually lost because of building hotels, resorts and recreational zones. In brief, these negative impacts on the environment will be more serious if there are not appropriate measures.
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)
During my summer break, which was right after I finished my 9th-grade exams and got promoted to 10th grade, I have been keeping myself busy with various activities. Firstly, I spent some quality time with my family. We went on a short trip to the beach, enjoying the sun, sand, and waves together. It was a refreshing and relaxing experience that rejuvenated my spirits.
Apart from that, I also dedicated a significant portion of my summer to enhancing my English language skills. I enrolled in an English language course where I had the opportunity to practice speaking, listening, reading, and writing. The classes were engaging and interactive, allowing me to make new friends with whom I could practice conversing in English.
Furthermore, I engaged in recreational activities to make the most of my holidays. I indulged in my hobbies like reading books, painting, and playing sports. These activities not only provided me with enjoyment but also helped me develop new skills and broaden my horizons.
To balance my productive and leisure activities, I made sure to allocate some time for relaxation as well. I enjoyed watching movies, spending time with friends, and exploring new places in my city. These moments gave me a chance to unwind and create beautiful memories with my loved ones.
Overall, my summer break was a fulfilling one. It allowed me to bond with my family, improve my English proficiency, explore my interests, and take moments to relax. I am thankful for this wonderful break, as it has prepared me for the challenges that lie ahead in 10th grade.
TK:
English is the most common language all over the world. There is no compulsory method to study English, but each person has to find the suitable one to study it efficiently. To me, I read books in English in order to improve both my vocabulary and grammar. Besides, I combine studying and entertaining. In my free time, I often listen to English songs, watch English movies and try to translate the lyrics as well as the subtitle. Furthermore, I join an English club, where I can connect with some international friends, and they are the best teachers to teach me about English. I can learn some slang, idioms, and things that normal teachers do not teach their students. I hope you can find your own ways to learn English.
tham khảo
Nowadays English has become an main language.English is used in almost all countrys.So learning English is an important assignment especially students.But how to learn English well is a question which most of students notice. we should learn english by ourselves . We can do grammar exercises in grammar books,write E as much as possible. It makes us revise our knowledge and improve our writing skill. We can wath E on TV , learn to sing E songs,read short stories or newpapers in E,listen to the programs on the radio and E tapes.It makes us improve our listening and reading skills.We should use a distionary for reading. It makes us save up newwords. The best important is that we usually practise by speaking with friends and learing by heart all newwords and texts.
English is an international language.It is very popular in the world.Therefore,I like to learn English very much.There are many reasons for learning English but I have three main reasons for it:find a good job,communicate with foreigners and especially catch up with the age. Firstly,we learn English to find a good job easily after graduation from college. I think it is right. If we want to work in foreign companies with high salary,first of all we have to know to use English.We have to write CV in English and speak English to employer in an interview that required.And I am sure that if we are good at English and a little experience in work we get,we will have a good job with high salary that we always want.Secondly,communicating in English with foreigners is very useful.Actually,we have many opportunities to learn and understand clearly about differences between British and American English.Moreover,they will correct us when we make mistakes in using words in English.That helps us improve English very much. Thirdly,we are living in the area of information technology.Therefore,we have to use personal computer in our work.And if we know English,we can read English News to know what happening in the world,listen to our favourite English songs or play games in free time.And it is very useful for us to relax after hard working days.Learning English brings us many opportunities to catch up the age.We can broaden knowledge and study many things from it.We can know about cultures,manners and customs from many countries in the world. Therefore,right now we have to study English to prepare for our lives in the future.And we always hope we can do everything if we try to best.That makes us successful in life.
~good luck to you!!
Tham khảo
At the peak of national or local lockdown, nearly 1.5 billion students were affected by school closures. The report titled “Distance Learning and Accessibility” highlights the limits of distance learning and reveals deep inequalities in access to education.
The report uses comprehensive analysis of the technical equipment and tools required for remote learning in the homes of preschool, elementary, middle, and high school students. common, with data from 100 countries. Numbers include outreach media, radio and the Internet, as well as the curriculum implemented on the platform during school closures.
Although the numbers in the report take the worrying shape of many children unable to learn remotely in schools during the closure, UNICEF warns the situation could get worse. Even when families have devices and an internet connection at home, children are still likely to not be able to learn remotely because they have to do housework, are forced to work, or are discouraged from studying or lack the education they need. support needed to be able to attend programs online or through broadcasting.
Refer
As we all know, the Covid 19 epidemic brought a lot of damage to people and property. It a very dangerous disease and highly contagious from person to person. It seriously affects the economic conditions of countries, especially the US, Brazil, and Russia. This epidemic originated in Wuhan, China. And now there are many strains and can spread faster and stronger than the original virus. The Covid 19 epidemic has claimed many lives of people in the world and in Vietnam. For the above reasons, we need to accumulate epidemic prevention, each of us should be conscious, this can protect the health of ourselves and everyone in society. Especially doctors are on the front line against the epidemic, who are facing many dangers, but still risk their lives to treat patients. Need to strictly comply with the directives of the state. To protect ourselves and everyone we should do the following:
+ Wear a mask when going out to public areas, crowded.
+ Antiseptic and daily body temperature measurement.
+ When you yourself have symptoms of cough, shortness of breath, you should contact the hotline of the health department.
+ Download the Bluezoon app to make a daily medical declaration.
+ Not gathering people, needing to stop weddings, anniversaries, ...
+ If you go from the translation area, you need to isolate in accordance with regulations, do not try to hide, because it will affect people a lot.
+ Do not bring foreigners in illegally via the border.
+ .....
The above are the basic things that each of us needs to do to help the country soon end its epidemic.
This is my personal opinion, I think our state needs to deal strongly with people who illegally cross the border, spreading false information that confuses people. Because when we make strict laws, people will not consciously do something without thinking.
Each of us needs to work together to fight the Covid 19 epidemic.