Nhóm 4: XƯA → NAY / PHÁT TRIỂN
Mẹo nhóm: Khái quát → quá khứ → hạn chế → hiện nay → lợi ích mới
Bài 1: Films (2026)
1. That's because the movies were only in black and white, and sometimes without sound.
2. Due to the lack of money, actors also had few opportunities to earn money through acting.
3. Old movies were very different from today's movies.
4. Now things have changed, actors and filmmakers can earn thousands of dollars from film production.
5. Not only did these technological limitations exist, the movies were also low budget.
Đáp án: 3 → 1 → 5 → 2 → 4
Mạch nhớ: Phim xưa khác → đen trắng, không tiếng → ít tiền → diễn viên ít cơ hội → nay kiếm nhiều.
Bài 2: Movies then and now (2026)
1. In the old days, films were only in black and white, and sometimes even without sound.
2. Because of the lack of money, actors also earned little money from acting.
3. Movies today are very different from movies in the past.
4. Nowadays, everything has changed: actors and producers can earn a lot of money from producing films.
5. In addition to these technological limits, producers had very low budgets.
Đáp án: 3 → 1 → 5 → 2 → 4
Mạch nhớ: Phim xưa khác → đen trắng, không tiếng → ít tiền → diễn viên ít tiền → nay kiếm nhiều.
Bài 3: The history of transportation (2026)
1. Later, trains and buses were introduced as more affordable ways to travel.
2. Today, buses, trains, and planes are all common transportation options.
3. These forms of transport made travelling more accessible to ordinary people.
4. In the past, transportation was mainly available to wealthy people.
5. Air travel then became popular, especially among business professionals.
Đáp án: 4 → 1 → 3 → 5 → 2
Mạch nhớ: Xưa chỉ người giàu → tàu và xe buýt → dân thường đi được → máy bay → phương tiện phổ biến.
Bài 4: IoT - Internet of Things
1. Besides these technical issues, high development costs also slowed the widespread adoption of IoT technology.
2. The Internet of Things (IoT) links everyday devices to improve their capabilities.
3. Nowadays, engineers create smart devices for both residential and industrial applications.
4. These modern IoT systems provide real-time data tracking and automation features.
5. Early IoT devices faced limitations due to slow internet speeds and compatibility challenges.
Đáp án: 2 → 5 → 1 → 3 → 4
Mạch nhớ: IoT kết nối → thiết bị đầu hạn chế → chi phí cao → nay thiết bị thông minh → theo dõi và tự động hóa.
Bài 5: Workplace evolution
1. Limited technology once restricted remote work possibilities.
2. Another recent change is that companies are experimenting with shorter workweeks to boost productivity.
3. Modern workplaces are adopting more flexible work models.
4. In the past, employees followed strict nine-to-five schedules.
5. For example, managers now use software to track project progress remotely.
Đáp án: 4 → 1 → 3 → 5 → 2
Mạch nhớ: Xưa làm 9–5 → công nghệ hạn chế → nay linh hoạt → phần mềm quản lý → tuần làm ngắn hơn.
Bài 6: Workplace evolution (phiên bản 2)
1. For example, managers now use digital tools to follow project progress remotely.
2. Because technology was limited, working from home was almost impossible.
3. Another modern change is that many companies are trying shorter workweeks to increase efficiency.
4. In the past, most workers followed fixed schedules from nine to five.
5. Modern offices are now moving toward more flexible ways of working.
Đáp án: 4 → 2 → 5 → 1 → 3
Mạch nhớ: Xưa làm 9–5 → khó làm từ xa → nay linh hoạt → công cụ số → tuần làm ngắn hơn.
Bài 7: Public Transportation
1. In addition to these technical improvements, drivers and staff now receive better training to provide improved passenger service.
2. City buses today are much more efficient than those from ten years ago.
3. In the past, many cities had fewer bus routes because of budget limitations.
4. Modern buses often use electric power, helping to reduce pollution in urban areas.
5. Older buses often did not have air conditioning or comfortable seating.
Đáp án: 3 → 5 → 2 → 4 → 1
Mạch nhớ: Xưa ít tuyến → xe cũ bất tiện → nay hiệu quả → xe điện → nhân viên phục vụ tốt hơn.
Bài 8: Social Media
1. Today's platforms use complex algorithms to personalize and shape each user's feed.
2. At that time, slow internet speeds made streaming or uploading videos difficult.
3. As a result, many influencers now earn income primarily through brand sponsorships and online ads.
4. Early social media platforms offered only basic features like text posts and simple images.
5. Over time, social media platforms greatly evolved in both design and functionality.
Đáp án: 4 → 2 → 5 → 1 → 3
Mạch nhớ: Mạng xã hội đầu đơn giản → mạng chậm → phát triển dần → thuật toán cá nhân hóa → influencer kiếm tiền.
Bài 9: Artificial intelligence
1. In addition to these technical limits, high computational costs previously hindered the development of AI.
2. Over the past decade, artificial intelligence has revolutionized various industries.
3. Nowadays, AI engineers build advanced models for complex tasks such as language translation.
4. These modern AI tools help businesses analyze data and make better decisions.
5. Early AI systems were limited to simple pattern recognition tasks.
Đáp án: 2 → 5 → 1 → 3 → 4
Mạch nhớ: AI đổi nhiều ngành → hệ thống đầu đơn giản → chi phí cao → nay mô hình nâng cao → phân tích và quyết định.
Bài 10: AI - Artificial Intelligence
1. In addition to these early limitations, high computational costs slowed down the progress of AI development.
2. Over the past decade, artificial intelligence has reshaped industries around the world.
3. Today, AI engineers design sophisticated models for applications such as language translation.
4. These modern AI tools enable businesses to analyze vast amounts of data and make smarter decisions.
5. Early AI systems were capable of handling only simple pattern recognition tasks.
Đáp án: 2 → 5 → 1 → 3 → 4
Mạch nhớ: AI đổi toàn cầu → hệ thống đầu đơn giản → chi phí cao → nay mô hình nâng cao → phân tích và quyết định.
Bài 11: Healthy Eating
1. Years ago, limited access to fresh produce made healthy eating more difficult.
2. In addition to this expert advice, mobile apps now help users track calories and discover healthy recipes.
3. Modern diets now focus on fresh, whole foods instead of processed ones.
4. In the past, many meals were high in sugar and unhealthy fats.
5. Nutritionists today teach people how to plan balanced and nutritious meals.
Đáp án: 4 → 1 → 3 → 5 → 2
Mạch nhớ: Xưa nhiều đường, mỡ → khó có đồ tươi → nay ăn nguyên chất → chuyên gia hướng dẫn → app hỗ trợ.
Bài 12: Tourism
1. Today, online platforms allow people to plan thoroughly and book their trips with ease.
2. In earlier times, travelers mostly depended on guidebooks and paper maps.
3. Moreover, local guides now offer personalized tours that give visitors more authentic experiences.
4. Modern tourism now provides far more choices than in the past.
5. Back then, limited technology also meant that booking options were quite restricted.
Đáp án: 4 → 2 → 5 → 1 → 3
Mạch nhớ: Du lịch nay nhiều lựa chọn → xưa sách và bản đồ → đặt chỗ hạn chế → nay đặt online → tour cá nhân hóa.
Bài 13: The history of transportation (phiên bản 2)
1. Later on, airplanes also helped make traveling easier and more accessible.
2. In the past, traveling was something only wealthy people could afford.
3. Because flying is very fast, it supports travel for both holidays and business purposes.
4. Today, improvements in transportation make it easier to travel to many parts of the world.
5. The development of trains and cars made travel more convenient and affordable for the general public.
Đáp án: 2 → 5 → 1 → 3 → 4
Mạch nhớ: Xưa chỉ người giàu → tàu và ô tô → máy bay → bay nhanh cho du lịch/công việc → nay đi khắp nơi.
Bài 14: Travel
1. Thanks to the invention of cars and trains, it became easier for people to travel
2. At that time, only the very wealthy could afford to travel
3. Thanks to the great development of means of transport, today people can travel to other parts of the world.
4. Because flying is very fast, people can travel by this means to different locations for business or travel
5. Not only the above 2 means of transport, people later had the opportunity to travel by aeroplanes
Đáp án: 2 → 1 → 5 → 4 → 3
Mạch nhớ: Xưa chỉ người giàu → ô tô và tàu → máy bay → bay nhanh → nay đi khắp nơi.