Đề ôn thi Đề thi vào lớp 10 Phú Thọ môn Tiếng Anh - Mã đề PTH-87

A wedge is one of the six classical simple machines. Its main purpose is to separate two objects, or portions of an object, by applying force. You can find wedges everywhere in your daily life, from a simple doorstop to the blade of a knife. The scientific (15) __________ behind it is fascinating: it transforms a force applied to its blunt end into forces perpendicular to its inclined surfaces.

Engineers have to (16) __________ the ideal angle for a wedge depending on its function. For instance, an axe needs a sharp angle to split wood effectively. If an axe blade (17) __________ a very wide angle, it would require much more effort to split a log. (18) __________, the narrower the wedge, the greater its mechanical advantage. (19) __________ side of the wedge exerts pressure outwards, pushing the material apart. This simple tool is also used to lift heavy objects or hold them (20) __________ place, like a doorstop preventing a door from closing.

The idea of packing a bag and exploring the world alone is a major trend. From the mountains of Ha Giang to the busy streets of Ho Chi Minh City, more and more young people are inspired by social media to embark on their own adventures. This prospect can be incredibly exciting, offering a taste of true independence. However, for many teenagers, it can also seem like a daunting challenge, raising questions about safety and loneliness.

For many, the idea of a solo trip is incredibly appealing because it offers ultimate freedom. Solo travelers can make their own schedules, change plans whenever they want, and truly get to know themselves. This independence helps build confidence and self-reliance, which are valuable life skills. Discovering new places and overcoming challenges on your own can be a powerful experience, creating memories that last a lifetime and teaching you more than any classroom could.

However, traveling alone isn't without its difficulties. Feelings of loneliness can sometimes appear, especially during evenings or mealtimes. Safety is also a major concern that requires constant awareness. Because of these challenges, thorough planning and research are essential before starting any journey. This includes booking accommodation in advance, understanding local customs, and having a reliable way to communicate with family back home. Preparation is the key to a successful and safe solo adventure.

Ultimately, whether a teenager decides to travel completely alone or not, the process of planning for such a trip is a valuable exercise. Learning how to budget, create an itinerary, and research a destination are all important steps toward adulthood. The dream of a solo journey encourages young people to become more organized and responsible, preparing them for future independence, even if their first big trip is still a few years away.