Đề ôn thi Đề thi vào lớp 10 Hà Nội môn Tiếng Anh - Mã đề HN-93

(23) __________ Everything about the trip, from the people to the work, taught me a valuable lesson in perspective. (24) __________

An excavator's arm is a marvel of engineering, capable of powerful and precise movements. It consists of three main sections: the boom (the part closest to the cab), the stick (also called the dipper arm), and the bucket at the very end. (25) __________ of these parts is moved by large hydraulic cylinders. The basic operating (26) __________ behind this amazing strength is Pascal's Law applied to fluid dynamics. An operator in the cab controls the flow of special oil to pistons. This pressurized fluid is what allows the machine to (27) __________ difficult tasks like digging trenches and lifting heavy materials with surprising accuracy.

The force generated is truly immense. If an excavator’s arm were not hydraulic, it (28) __________ have nearly enough strength to lift tons of rock or soil. The hydraulic system multiplies the operator’s force significantly. (29) __________, even small movements of the control levers result in massive power at the bucket. The entire system is connected (30) __________ a network of reinforced hoses designed to withstand incredibly high pressure, making it a perfect example of applied physics on the construction site.

In an age dominated by high-speed flights, the idea of spending over 30 hours on a train might seem strange. However, for many travelers, the journey itself is the destination. In Vietnam, the North-South Railway, affectionately known as the Reunification Express, offers such an experience. This historic route, stretching over 1,700 kilometers between Hanoi and Ho Chi Minh City, provides a window into the heart of the country that flying simply cannot offer.

The main appeal of the Reunification Express is the unfolding scenery. Passengers witness Vietnam’s diverse landscapes change right outside their window. The journey showcases everything from beautiful coastlines and green rice paddies to towering mountains and bustling cities. Beyond the views, the train is a social space. It's common to share stories and snacks with local families or other backpackers, creating connections that are a memorable part of the trip.

Of course, choosing the train over a plane means accepting a much slower pace. A flight between Hanoi and HCMC takes about two hours, while the train journey can last nearly two days. This slow travel, however, is not a disadvantage but a feature. It encourages a sense of patience and allows travelers to absorb the culture and rhythm of the country in a way that is impossible from 30,000 feet in the air. This slower journey leads to a deeper appreciation of the places you pass through.

Ultimately, the Reunification Express is more than just transportation; it's a cultural adventure. It teaches that speed is not always the most important factor in travel. For those who want to truly see and understand Vietnam, taking the slow train proves that sometimes, the longest path offers the richest rewards.

High-Intensity Interval Training (HIIT) has become extremely popular for its promise of fast results in less time. This workout style involves short bursts of intense exercise followed by brief recovery periods, (37) __________. However, a growing number of health experts are now raising concerns about its potential downsides, arguing that the high-impact nature of many HIIT routines can lead to a greater risk of injury, especially for beginners.

Furthermore, the extreme intensity can be difficult to maintain long-term. (38) __________, causing people to abandon their fitness goals altogether. To avoid these problems, experts recommend a more balanced approach. (39) __________. By mixing high-intensity days with lower-impact activities like swimming or yoga, you can get the benefits of HIIT (40) __________.

A. They suggest incorporating HIIT sessions into a wider fitness plan instead of doing them every day

B. making it an attractive option for people with busy schedules

C. while significantly reducing the potential for harm

D. This constant push for peak performance can result in physical and mental burnout