Đề ôn thi Đề thi vào lớp 10 Phú Thọ môn Tiếng Anh - Mã đề PTH-101

Before the 1970s, calculators were large, expensive machines that only big businesses could afford. The invention of the integrated circuit changed everything, allowing for much smaller devices. The first handheld calculators appeared and quickly became popular. (15) __________, their high price meant that not everyone could buy one. If we didn't have pocket calculators today, life (16) __________ be much more difficult for many students and professionals.

Early models could only perform basic functions, and engineers had to (17) __________ complex problems like memory limitations and short battery life. Now, (18) __________ student in a science class probably owns a smartphone with a calculator app far more powerful than those early devices. The development of the pocket calculator had a huge (19) __________ on education and business, making complex calculations accessible to everyone. The journey from a room-sized machine (20) __________ a pocket-sized gadget is a perfect example of technological progress.

In the past, planning a vacation often meant a visit to a local travel agency. Today, that picture has changed dramatically. With a smartphone in hand, teenagers and adults alike are becoming their own travel agents. The rise of sophisticated travel applications has transformed trip planning from a complicated task into something you can do from your sofa, offering a world of travel options right at your fingertips.

The primary appeal of these applications is their efficiency and the control they give to users. Compared to traditional travel agencies, these platforms allow you to compare hundreds of flight and hotel prices from various providers in seconds. You can read reviews from other travelers and book your choices instantly, without needing to wait for a travel agent's business hours. This direct access empowers travelers to find deals that best fit their budget and preferences.

This trend is also very strong in Vietnam. For example, platforms like Vexere have revolutionized domestic travel by allowing users to book bus tickets online for routes all across the country. This simple digital solution has a significant impact: travelers no longer need to face the uncertainty and stress of going to a crowded bus station, unsure if tickets will be available. Instead, they can secure their seats in advance with just a few taps on their phone.

However, is this digital approach always superior? While apps offer amazing convenience, they sometimes lack the personalized support a human agent can provide, especially when plans go wrong. Resolving issues like flight cancellations or hotel problems can be more complex through an app. Therefore, while your phone is an incredibly powerful travel tool, the true skill lies in knowing how to use it wisely, understanding both its strengths and limitations.