Here are some responses based on the questions you provided:

1. Is there a square in your hometown?
2. • Yes, there is a square in my hometown. It is a popular place where people gather to relax, meet friends, and participate in local events.
3. Where is your home?
4. • My home is in [insert name of town/city/village], which is located in [mention region/country]. It’s a peaceful place with beautiful surroundings.
5. What do people do for a living in your village?
6. • In my village, most people are farmers. They grow rice, vegetables, and fruits. Some also work in small local shops or as teachers, doctors, and craftsmen.
7. What do you like best in your village?
8. • What I like best about my village is the peaceful atmosphere and the friendly community. I also love the green fields and the fresh air that make it feel like a great place to relax and enjoy nature.
9. What's the weather like in your neighborhood?
10. • The weather in my neighborhood is generally [insert type of climate, e.g., tropical, temperate, or subtropical]. It’s [mention whether it’s hot, cold, humid, or rainy] most of the time, with distinct seasons like hot summers and mild winters.

To make our school greener and address the environmental problems, here are some simple and effective actions that can help improve the school's environmental footprint:

1. Reduce, Reuse, and Recycle

• Encourage Recycling: Set up recycling bins for paper, plastic, and metal around the school. Educate students and staff about what can and cannot be recycled.
• Reduce Paper Usage: Try to use digital platforms for assignments and notes instead of printing. If printing is necessary, use both sides of the paper.
• Reuse Materials: Encourage students and teachers to reuse old paper for notes, crafts, or projects.

2. Save Energy

• Turn Off Lights: Make sure to turn off lights when they are not needed, such as after school or during breaks. Installing motion sensor lights in classrooms and hallways can also help save energy.
• Unplug Devices: Ensure that electrical devices, like computers and chargers, are turned off or unplugged when not in use to prevent unnecessary energy consumption.
• Use Energy-efficient Appliances: Switch to energy-efficient lighting and appliances like LED bulbs, which use less energy and last longer.

3. Go Green with Plants

• Plant Trees and Shrubs: Organize tree planting activities to help absorb carbon dioxide and improve air quality. This can also create a pleasant outdoor environment for students.
• Indoor Plants: Place indoor plants in classrooms and hallways to improve air quality and make the space feel more vibrant. Plants can also reduce stress and increase concentration.

4. Water Conservation

• Fix Leaky Faucets: Encourage the school to repair any leaking faucets or pipes. Water wastage can add up quickly.
• Water-efficient Devices: Install water-saving devices like low-flow faucets, and educate everyone about the importance of conserving water.
• Collect Rainwater: Set up a rainwater collection system to water the school’s gardens and plants, reducing the need for potable water.

5. Encourage Eco-friendly Transportation

• Bike to School: Promote biking and walking as healthy and eco-friendly alternatives to driving. Create safe bike racks to encourage students and staff to bike to school.
• Carpooling: Organize a carpool program to reduce the number of cars on the road, thus cutting down on air pollution and reducing the carbon footprint.

6. Organize Awareness Campaigns

• Host Environmental Events: Organize regular environmental awareness events or days, such as Earth Day, where students can learn more about sustainability and participate in green activities like clean-up drives or tree planting.
• Poster Campaigns: Use posters or digital displays around the school to promote environmentally friendly habits such as turning off lights, saving water, and recycling.

7. Encourage Sustainable Food Practices

• Healthy and Eco-friendly Lunches: Encourage students and staff to bring reusable lunchboxes instead of plastic bags. Avoid single-use plastics, such as straws and plastic cutlery, and try to use alternatives like bamboo or stainless steel.
• Composting: Set up a composting program in the school for food waste. This can help reduce the amount of waste going to the landfill and create nutrient-rich compost for the school garden.

8. Green the School Buildings

• Install Solar Panels: If possible, encourage the school to invest in renewable energy, such as solar panels, to reduce reliance on fossil fuels and lower energy costs.
• Insulate Buildings: Proper insulation can help keep classrooms warmer in the winter and cooler in the summer, reducing the need for heating and cooling and saving energy.

9. Reduce Plastic Usage

• Avoid Single-Use Plastics: Encourage students and staff to avoid using single-use plastics like plastic bottles and cups. Provide reusable alternatives like water bottles, lunch boxes, and straws.
• Eco-friendly Products: Support the use of eco-friendly products and materials in the school canteen, like paper straws, biodegradable containers, and organic food.

10. Promote Green Classrooms

• Eco-friendly Supplies: Encourage the use of eco-friendly school supplies, such as recycled paper, non-toxic paints, and markers, and natural cleaning products.
• Classroom Waste Management: Set up small bins for waste separation in every classroom to encourage students to sort their trash into recyclables and non-recyclables.

Conclusion

By making small but consistent efforts, we can create a greener and healthier school environment. It starts with simple actions like reducing waste, conserving energy, planting trees, and promoting awareness about sustainability. If everyone works together, we can create a positive change that not only benefits our school but also contributes to a better and more sustainable planet. Let's take responsibility and make our school a model of environmental care!

Here are the correct answers for the fill-in-the-blank questions:

Question 26:
B. the

• The correct article here is "the" because we are referring to a specific part or event of the trip (the presentation). It’s not just any presentation; it's the one that is specifically assigned to the groups as part of the trip.

Question 27:
A. cut down on

• The phrase "cut down on" is commonly used when talking about reducing something, in this case, waste. It means to decrease or lessen the amount of waste produced.

Question 28:
B. because

• "Because" is the most appropriate choice here, as it provides the reason for bringing reusable water bottles, which is to encourage plastic waste reduction.

Final Answers:

• 26: B. the
• 27: A. cut down on
• 28: B. because

Yes, teenagers should take part in outdoor activities, especially if they use electronic devices too much. Here are several reasons why:

1. Health Benefits

Spending too much time on electronic devices, such as phones, computers, or video games, can lead to physical health problems, including poor posture, eye strain, and weight gain. By engaging in outdoor activities, teenagers can improve their physical health by staying active, getting fresh air, and benefiting from exposure to sunlight, which is important for Vitamin D production.

2. Mental Well-being

Constant use of electronic devices, especially social media, can negatively affect teenagers' mental health. It can contribute to feelings of isolation, anxiety, or depression. Outdoor activities provide a natural way to reduce stress, clear the mind, and improve overall mental well-being. Exercise and being in nature have been shown to help teenagers improve their mood and reduce the risk of mental health issues.

3. Social Interaction

Outdoor activities encourage face-to-face interaction with others, which is crucial for developing strong social skills and building relationships. Spending too much time on electronic devices often means teenagers are engaging with others in a virtual space rather than in person, which can limit the development of effective communication and empathy.

4. Balance and Time Management

Taking part in outdoor activities can help teenagers create a better balance in their lives. By limiting screen time and allocating time for physical activity, they can learn to manage their time more effectively and reduce the temptation to spend excessive hours on their devices. Engaging in outdoor activities also provides a healthy distraction from the digital world.

5. Enhanced Creativity

Outdoor activities often involve exploring new environments, using imagination, and being spontaneous. These activities can foster creativity, which may be limited when teenagers are too focused on screens. Physical activities, such as hiking, biking, or team sports, allow for greater mental stimulation, which can benefit problem-solving and critical thinking.

Conclusion

While electronic devices are an important part of modern life and can offer educational and entertainment value, it's crucial for teenagers to balance screen time with outdoor activities. Engaging in physical activities promotes better physical, mental, and social health. It's essential for teenagers to make time for outdoor activities to ensure they maintain a well-rounded and healthy lifestyle.

Câu trả lời là có. Cụm từ "at break time" có thể là một dấu hiệu của thì hiện tại tiếp diễn (Present Continuous) trong một số ngữ cảnh.

Thì hiện tại tiếp diễn được sử dụng để diễn tả một hành động đang xảy ra tại thời điểm nói hoặc những hành động diễn ra trong một khoảng thời gian xung quanh thời điểm nói. Cụ thể, khi bạn nói "at break time," có thể bạn đang nói về những hành động diễn ra trong thời gian đó (tức là hành động đang diễn ra trong khoảng thời gian nghỉ giải lao).

Ví dụ:

• At break time, we are playing football. (Vào giờ giải lao, chúng tôi đang chơi bóng đá.)

Trong câu trên, "are playing" là thì hiện tại tiếp diễn, diễn tả hành động đang xảy ra vào lúc giờ giải lao.

Lưu ý: Mặc dù "at break time" có thể là một dấu hiệu của thì hiện tại tiếp diễn, nhưng chính động từ trong câu mới là yếu tố quyết định thì.

TOPIC 1:

PART I: QUICK RESPONSE

1. What’s your name?
2. • My name is [Your Name].
3. Which class and school are you in?
4. • I am in class [Your Class] at [Your School].
5. Do you like learning English?
6. • Yes, I like learning English because it helps me communicate with people around the world and understand different cultures.
7. How many subjects do you study at school?
8. • I study [number] subjects at school. Some of the main subjects are Math, English, Science, and History.

PART 2: READ THE FOLLOWING PARAGRAPH ALOUD

(For this part, you can practice reading a paragraph aloud. You might be given a text to read in the test, so be sure to focus on pronunciation, clarity, and fluency.)

PART 3: TALK ABOUT YOUR HOBBY

1. What is your hobby?
2. • My hobby is [your hobby, e.g., reading, playing football, painting, etc.]. I really enjoy it because it helps me relax and be creative.
3. When did you start?
4. • I started [my hobby] when I was [age or a specific time, e.g., 8 years old, two years ago, etc.]. I was introduced to it by [a friend, family member, teacher, etc.].
5. Who do you share it with?
6. • I usually share my hobby with [friends, family, classmates, etc.]. Sometimes I also do it alone when I want some time to myself.
7. How do you do it?
8. • I usually [describe how you do your hobby, e.g., I play football with my friends at the park, I read books in the evening, I paint in my free time, etc.].
9. How do you feel about the hobby?
10. • I feel [happy, relaxed, excited, etc.] when I do my hobby because it allows me to express myself and helps me forget about my stress.
11. Do you want to continue your hobby in the future?
12. • Yes, I definitely want to continue my hobby in the future because it brings me joy, and I hope to improve my skills in it.

These are the questions you can prepare for practicing. For Part 2, make sure to work on your reading fluency. For Part 3, you can develop your answers to be more detailed and practice speaking confidently about your hobby.

Dưới đây là những câu hỏi mà bạn yêu cầu về chủ đề Food and Drink (Thức ăn và đồ uống) trong bài học tiếng Anh lớp 7:

1. What foods do you like/dislike?

• Bạn thích món ăn nào? Bạn không thích món ăn nào?

2. What is your favorite food?

• Món ăn yêu thích của bạn là gì?

3. How often do you go shopping to get groceries? What do you usually buy?

• Bạn đi mua sắm thực phẩm bao lâu một lần? Bạn thường mua những gì?

4. What did your mom buy from the supermarket last week?

• Mẹ bạn đã mua gì từ siêu thị tuần trước?

5. What do you have in your kitchen?

• Bạn có những gì trong bếp của mình?

6. Does your kitchen have milk/bananas/butter.....? How much/many of each kind is there?

• Bếp của bạn có sữa/chuối/bơ... không? Có bao nhiêu cái/túi của từng loại?

7. Would you like to try unusual food?

• Bạn có muốn thử những món ăn lạ không?

8. What is the strangest dish that you know?

• Món ăn kỳ lạ nhất mà bạn biết là gì?

9. Look at this picture and answer the questions:

• What do we need to make beef noodles?
• Chúng ta cần gì để làm mì bò?
• How much beef/oil/flour… do we need?
• Chúng ta cần bao nhiêu thịt bò/dầu/bột…?
• How many grams of flour/noodles/vegetables… do we need?
• Chúng ta cần bao nhiêu gram bột/mì/rau…?

Những câu hỏi này giúp bạn ôn tập và luyện nói về chủ đề thực phẩm và đồ uống. Bạn có thể sử dụng những câu hỏi này để thực hành cùng bạn bè hoặc trong lớp học.

Community Service: The Power of Giving Back

Community service is a selfless act of helping and supporting others in your local area, often aimed at improving the lives of those who are less fortunate, enhancing the environment, or contributing to a particular cause. It plays a vital role in the development of both individuals and communities as a whole. It brings together people from all walks of life and provides opportunities for them to actively contribute to the greater good.

This essay explores the importance of community service, its benefits, types of community service, how it impacts both volunteers and those they help, and why it is an essential part of modern society.

The Importance of Community Service

Community service holds significant importance in modern society as it helps build strong, vibrant, and resilient communities. It encourages social interaction, promotes understanding and cooperation, and addresses critical needs in the community that often go unmet due to a lack of resources.

Through community service, individuals contribute to the welfare of others, fostering a sense of responsibility and empathy. It is a way to give back to society and create positive change in the world. Whether it is by volunteering time, sharing skills, or providing financial support, community service can transform the lives of individuals, families, and neighborhoods.

Benefits of Community Service

1. Personal Growth and Development

One of the greatest benefits of participating in community service is the personal growth and development it fosters. When individuals engage in helping others, they often gain new skills and experiences that can shape their personal and professional lives. For example, someone volunteering at a local food bank might develop skills in communication, organization, and teamwork. Additionally, people who volunteer often develop a deeper understanding of the challenges others face, which can cultivate empathy and compassion.

Community service also provides opportunities for individuals to reflect on their values, priorities, and sense of purpose. It can give volunteers a sense of fulfillment and satisfaction, knowing that they have contributed positively to the lives of others. Many people find that giving back through volunteer work brings them joy and purpose, helping them find meaning in their lives.

2. Strengthening Communities

Community service plays a crucial role in creating a sense of belonging and unity. It brings together people with diverse backgrounds and creates a shared sense of responsibility toward improving the quality of life for everyone. By participating in community projects, people connect with others in their neighborhood, forming strong bonds and creating lasting friendships. These relationships can lead to more supportive and resilient communities, where neighbors look out for each other and work together to address challenges.

Moreover, community service helps to tackle pressing social issues that may otherwise be overlooked. For instance, local clean-up efforts, food drives, and youth mentorship programs address important needs and create lasting improvements in the community. By working together, individuals can make a tangible difference, improving their environment and the well-being of those around them.

3. Improving Social Skills and Networking

Community service also offers an excellent opportunity to develop social skills and expand one's network. Volunteers often work alongside others from different backgrounds, fostering collaboration and building communication skills. These experiences can help individuals become more effective team players and leaders.

For students or young professionals, community service can also serve as an avenue for networking. Many employers value volunteer work, as it demonstrates initiative, leadership, and a commitment to social responsibility. Volunteer experiences can be an asset on resumes and provide references for future job opportunities.

Types of Community Service

Community service can take many forms, depending on the needs of the community and the skills and interests of the volunteer. Some common types of community service include:

1. Environmental Service

Environmental community service includes activities that aim to preserve and protect the natural world. This can involve organizing clean-up events in local parks, rivers, and beaches, planting trees, or participating in wildlife conservation efforts. These types of services are crucial in promoting sustainability and addressing environmental issues such as pollution, deforestation, and climate change.

2. Social Services

Social service organizations rely heavily on volunteers to support vulnerable populations. This can involve working with the elderly, children, refugees, or people with disabilities. Volunteers may assist at homeless shelters, support food banks, or provide companionship to seniors in nursing homes. These services are critical for those who face social isolation or lack access to essential resources.

3. Educational Service

Many community service opportunities involve helping others through education. Volunteers can assist in after-school programs, tutoring children in need, teaching literacy classes, or providing mentorship to at-risk youth. Education is one of the most effective tools for breaking the cycle of poverty, and by volunteering in this area, individuals can help empower others to achieve success in their lives.

4. Health and Wellness

Volunteering in health-related fields often involves supporting hospitals, clinics, or health initiatives. Volunteers may help organize health fairs, assist in blood donation drives, or provide emotional support to patients in hospitals. Many community service organizations also work to raise awareness about important health issues, such as mental health, addiction, and chronic disease prevention.

The Impact on Volunteers and Those They Help

Community service not only benefits the recipients of help but also has a profound impact on the volunteers themselves. Volunteers often report feeling a greater sense of gratitude, fulfillment, and purpose after contributing their time and energy to a cause. The positive effects of volunteering can lead to a greater sense of well-being, improved mental health, and stronger social connections.

For those receiving help, community service provides them with the support they need to overcome challenges, whether that involves access to food, healthcare, education, or social support. Volunteers often become a source of hope and encouragement for individuals going through difficult times. In this way, community service fosters a sense of solidarity, helping to reduce social isolation and inequality.

Why Community Service Is Essential in Modern Society

In today’s fast-paced and often individualistic world, community service is more essential than ever. With rising inequality, environmental degradation, and a growing number of marginalized groups, there is an increasing need for collective action to address societal challenges. By participating in community service, individuals become active participants in the creation of a more just, compassionate, and sustainable world.

Community service also encourages individuals to take responsibility for their communities, rather than waiting for others to solve problems. It teaches the importance of civic engagement, showing that even small actions can have a big impact. By promoting community service, society as a whole can create a culture of giving and solidarity, where everyone plays a part in making the world a better place.

Conclusion

Community service is a powerful force that can transform lives, communities, and societies. It provides opportunities for personal growth, fosters stronger connections between people, and addresses critical issues that affect the well-being of others. Whether through environmental efforts, social services, education, or healthcare, community service allows individuals to contribute to the greater good and make a positive difference in the world. In an era where many face challenges and uncertainties, community service reminds us of the importance of compassion, cooperation, and collective action in building a better future for all.

Chúng ta có hai đĩa: đĩa xích (đĩa lớn) và đĩa líp (đĩa nhỏ), và cần tính tỉ số truyền và tốc độ quay của đĩa líp.

Thông tin đã cho:

• Đường kính của đĩa xích: �1=30 cmD1​=30cm
• Tốc độ quay của đĩa xích: �1=150 voˋng/phuˊtN1​=150voˋng/phuˊt
• Đường kính của đĩa líp: �2=10 cmD2​=10cm

a) Tính tỉ số truyền của 2 đĩa líp

Tỉ số truyền giữa hai đĩa được tính theo công thức:

Tỉ soˆˊ truyeˆˋn=Toˆˊc độ quay của đı˜a xıˊchToˆˊc độ quay của đı˜a lıˊp=�1�2Tỉ soˆˊ truyeˆˋn=Toˆˊc độ quay của đı˜a lıˊpToˆˊc độ quay của đı˜a xıˊch​=D2​D1​​

Vậy:

Tỉ soˆˊ truyeˆˋn=�1�2=3010=3Tỉ soˆˊ truyeˆˋn=D2​D1​​=1030​=3

b) Tính tốc độ quay của đĩa líp

Vì tỉ số truyền là 3, tức là đĩa xích quay nhanh hơn đĩa líp 3 lần. Do đó, tốc độ quay của đĩa líp �2N2​ được tính theo công thức:

�2=�1Tỉ soˆˊ truyeˆˋn=1503=50 voˋng/phuˊtN2​=Tỉ soˆˊ truyeˆˋnN1​​=3150​=50voˋng/phuˊt

Kết luận:

• Tỉ số truyền của hai đĩa là 3.
• Tốc độ quay của đĩa líp là 50 vòng/phút.

Ta có ba số �x, �y, và �z khác 0 thỏa mãn các điều kiện sau:

Ta cần tính giá trị của biểu thức:

Bước 1: Biểu diễn �x, �y, và �z thông qua một tham số chung.

Từ điều kiện �5=�7=�45x​=7y​=4z​, ta có thể đặt:

Khi đó, ta có các biểu thức:

Bước 2: Thay các giá trị �x, �y, và �z vào biểu thức �A.

Biểu thức �A trở thành:

Thay �=5�x=5k, �=7�y=7k, và �=4�z=4k vào biểu thức trên:

Bước 3: Tiến hành tính toán.

1. Tính phần tử trong dấu ngoặc:

Vậy:

1. Tính bình phương:

1. Tính các phần còn lại:

• (5�)(7�)=35�2(5k)(7k)=35k2
• (7�)(4�)=28�2(7k)(4k)=28k2
• (5�)(4�)=20�2(5k)(4k)=20k2

Bước 4: Thay vào biểu thức �A.

Biểu thức �A là:

Tính phần đầu tiên:

Tính các phần còn lại:

Bước 5: Kết luận.

Tuy nhiên, để hoàn thành bài toán, ta cần có giá trị cụ thể của �k. Do bài toán không yêu cầu một giá trị cụ thể, nếu không có thêm dữ liệu, ta không thể tiếp tục chính xác.