Refer:

The Internet brings a lot of advantages to students in studying as well as researching.

Firstly, the Internet allows students to access a huge source of information. They can go online and look for anything they need by using search engines such as Google, Yahoo,… or directly visiting other professional websites. Some school libraries also have computers connected with the Internet for their students. Secondly, the Internet has enabled distance learning as well as e-learning. Thanks to the Internet, there are thousands of online courses available. If there weren’t the Internet, how could we keep studying during the Covid 19? Finally, films, music and different games on the Internet also help students to relax easily.

In conclusion, there are a large number of benefits that the Internet brings to students

Solar energy makes us have solar electricity, light to live. If you don't have solar energy, you will have to use electricity, but using electricity will cause a fire, so solar energy is very good.

Energy is very important in our daily life. We use energy for almost everything we do. However energy is limited. We should do the following things to save energy. Firstly, we should use electricity more efficiently. Secondly, we had better reduce our electricity bills. Besides, it’s necessary to turn off the lights when leaving a room or before going to bed to save energy. Moreover, we ought to reduce the use of fossil fuels. In short, we should try our best to save energy for our future and for our planet’s future.

    The world is currently very developed, which means that technology is very evolving, especially smartphone. And it brings a lot of benefits, I of course agree. Because it's so useful. Smartphone works remotely, even when you're in another part of the world. You can communicate verbally, video, audio and exchange other media. All websites, applications and software have been created to help users socialize. Social media, texting, texting, laptops, tablets, and cell phones mean no one needs to feel isolated in the digital world. Users can be regularly updated with news about local events and social developments. We can also learn through technology. Anyone with access to the internet today can access a huge amount of the world's knowledge through the web. Alternatively, lessons and courses can now be offered virtually online. Online social media or playing computer and mobile games is becoming more and more popular. Traditional media also developed, as television and broadcasting were digitized along with radio. It has many benefits, but it also has harmful effects. Nowadays, there are a lot of young people who are interacting too much with internet devices, and can easily watch bad programs, programs like those are not good for them. However, Smartphone is also a lot of benefits, is an important part of our life

1. Bảo quản vắc xin

Đây là một yếu tố đặt lên hàng đầu bởi vắc xin luôn đòi hỏi phải bảo quản ở một điều kiện nghiêm ngặt, đặc biệt là các loại vắc xin nhược độc. Mỗi loại vắc xin đều có một khoảng nhiệt độ bảo quản thích hợp, đối với các loại vắc xin virus ở nhiệt độ từ 2 – 8°C, các loại vắc xin vi khuẩn từ 5 – 150C. Nếu nhiệt độ bảo quản vắc-xin nằm ngoài khoảng nhiệt độ bảo quản, hoặc để vắc xin bảo quản ở ngăn đá sẽ làm mất tác dụng của vắc xin.

Ngoài ra, bà con cũng cần chú ý việc bảo quản vắc xin khi vận chuyển, nếu ở xa nơi bán vắc xin thì khi đi mua nhất thiết có hộp xốp, phích đá để bảo quản; nếu mua gần thì bảo quản bằng túi nilông tối màu có giấy bọc. Khi vận chuyển vắc xin cần bao gói kỹ, tránh hiện tượng va đập, tránh được vắc xin tiếp xúc trực tiếp với đá lạnh, đặc biệt không cho ánh nắng trực tiếp chiếu vào vắc xin để đảm bảo chất lượng và hiệu quả phòng bệnh của vắc xin.

2. Sử dụng vắc xin

Nếu khâu bảo quản tốt song chúng ta sử dụng vắc xin không đúng kỹ thuật thì hiệu quả cũng sẽ thấp. Khi sử dụng vắc xin chúng ta cần chú ý các yếu tố sau:

- Cần đọc kỹ hướng dẫn sử dụng vắc xin trước khi dùng, nếu không rõ thì hỏi thêm ý kiến của bác sĩ thú y.

- Khi dùng phải kiểm tra lọ vắc xin bằng mắt thường xem màu sắc, độ vẩn có gì khác thường (ví dụ: không dùng vắc xin bị đổi màu, vẩn đục).

- Không được tiêm vắc xin cho động vật đang mắc bệnh, nghi mắc bệnh, động vật quá gầy yếu, quá non, con mẹ mới đẻ, động vật mới thiến chưa lành vết thương, những con mang thai ở kỳ cuối.

- Dùng vắc xin đúng liều lượng, đúng vị trí, đúng lứa tuổi.

- Xi lanh, kim tiêm phải đảm bảo tiệt trùng. Biện pháp tốt nhất là luộc sôi hoặc hấp, để nguội dụng cụ trước khi sử dụng (chú ý không nên dùng cồn để sát trùng dụng cụ).

- Pha vắc xin đúng chỉ dẫn, trước khi sử dụng phải lắc kỹ lọ vắc xin.

- Vắc xin pha xong dùng ngay, không để quá 2-3 giờ sau khi pha, không cầm lâu trong tay; nếu thừa phải hủy, không được dùng cho ngày hôm sau; không vứt bừa bãi chai lọ, kim tiêm.

- Sau khi tiêm vắc xin, cần theo dõi vật nuôi để kịp thời phát hiện các trường hợp gia súc, gia cầm phản ứng sau khi tiêm để có biện pháp can thiệp.

3. Một số bệnh cần chú ý tiêm phòng cho vật nuôi

- Đối với trâu bò: tiêm phòng bệnh tụ huyết trùng, lở mồm long móng.

- Đối với lợn: cần được tiêm phòng đầy đủ 04 bệnh đỏ (tụ huyết trùng, phó thương hàn, đóng dấu lợn, dịch tả lợn), lở mồm long móng.

- Đối với đàn gà: tiêm vắc xin Newcastle, Gumboro, Cúm gia cầm.

- Đối với đàn thủy cầm: tiêm Cúm gia cầm, Dịch tả vịt.

   I am a volunteer so I have done many things for the community service. Last month, I raised money and funds for the poor, and they were very hapy. I also donated books and clothes for the children. Last week, I provided houses and food for the homless, and they looked very happy, too. So far, I , and my classmates, have planted trees and beautiful flowers in the school yard. It was so great. I have collected the rubbish on the beach and in the sea then I recycle them. It helps protectthe environment. And I, together with my family, often go to the hospital to help every one there. They are so freindly and they seem very happy when they see us. Volunteering is very good and special to me 'cause I can help others. I 'll do more in the future.

Playing sport is necessary because it brings about physical strength and mental power to the person involved in this on regular basis. Outdoor sports such as football, cricket, volleyball, hockey, running, etc help in improving physical health and mental fitness. However, some indoor games and sports brain games, chess, Sudoku, etc improve mental power and concentration level.

Sports and games are very beneficial to us as they teach us punctuality, patient, discipline, teamwork and dedication. Being involved in the sports activities helps us in getting protected with numerous diseases such as arthritis, obesity, heart problems, diabetes, etc.

It teaches us to go ahead in life by removing all the weaknesses. It makes us bold and gives the feeling of happiness by reducing the occurrence of anxiety and angry. It makes us physically fit and be mentally comfort, which we can easily deal with all the problems.

Playing sports is very necessary for the growth of an individual in our life. It's improtant to reserve a good health. Firstly, playing sports helps control weight and prevent obesity. Moreover, It also helps add body have a balance and stay in a good shape. Secondly, we can make lots of new friends when playing together and we will develop teamwork skills annd other useful skills.Finally, we can be creative, confident and feel satisfied when playing sports. Moreover, playing sports will reduce the pressures in our life, at school and relieve stress after a long day. For these reasons, I think we should spend our time playing outdoor sports such as football, badminton, basketball and ect to prevent the health issues and have a healthy life.

That's all. Thanks for watching!!!!

Refer:

Modern society is constantly developing, and the appearance of the Internet has opened up a whole new era of access and sharing of information. This brings a tremendous reform and benefits to all humanity. In our lives there are innumerable questions that need to be answered, and the Internet was born as a useful tool to help us solve those questions. Searching for information in the past has cost humanity a lot of time and effort, and not everyone had patience to turn the pages one by one to find the information they needed. However, our lives have changed tremendously since the arrival of the Internet, and the search of general information on the Internet has not consumed us much more than mouse clicks and keyboard typing. This is where most basic and specialist information is gathered from the majority of occupations and fields in our life. There are countless websites that contain useful information for research and study, and Wikipedia is now considered to be the most complete and accurate encyclopedia. Searching the Internet is simple, but we should also be careful in getting that information. Not all knowledge on the Internet is accurate and complete, so we need to compare information from many different sources before actually using any of them for our purposes. The Internet is an infinite ocean of knowledge, and we can learn countless things if we know how to use it properly.

I find playing online games very interesting. It can support me to feel relaxative after everyday after tired time of learning at school. I usually like to play online chess. It is exciting and challenging. It also help me to make friends online. It helps me to think over everything before acting. However, I always limit my time of playing online games. Because I think playing too much online games makes me tired. My eyes are often soring. My mother always reminds me of learning hard, so I know what is the most important to me. Playing online games only helps me to relax a little. So I advise you to working hard at school, and just spend a little time playing online games, although how much you like it.