Đề ôn thi Đề thi vào lớp 10 Hải Phòng môn Tiếng Anh - Mã đề HPG-174

Among the nearly 100 moons orbiting Jupiter, Europa stands out as a special case. It was first observed by Galileo Galilei in 1610, but our modern understanding really began with data from spacecraft. For instance, the Galileo mission, which (29) __________ the Jovian system between 1995 and 2003, sent back incredible images. These pictures showed a bright surface of water ice, covered in long, dark cracks. For decades, Europa has continued to (30) __________ the attention of astronomers and space agencies worldwide.

(31) __________, what makes Europa truly fascinating isn't its surface, but what might lie beneath it. Scientists have strong evidence to suggest a vast saltwater ocean is hidden under the ice. This massive ocean (32) __________ by heat generated from Jupiter’s powerful gravity. This internal warmth could create the right (33) __________ for life to develop, similar to the ecosystems found around deep-sea vents on our own planet. For this reason, Europa is a key target for future missions (34) __________ will aim to explore this hidden world and search for signs of life.

Can you imagine waiting five minutes for a single song to download? For your parents, this was normal. Before today's lightning-fast internet, connections were slow and unreliable. Now, for teenagers in Vietnam and across the world, high-speed internet is essential for studying, gaming, and streaming videos. This massive change didn't happen overnight; it was the result of an incredible technological journey that transformed how we connect to the digital world.

In the past, most homes connected to the internet using dial-up or ADSL technology, which sent data through old copper telephone lines. This system was slow and had many limitations. For example, you couldn't use the house phone and the internet at the same time. As more people started using the internet for complex tasks, this copper-wire system quickly became obsolete and unable to meet the growing demand for faster speeds.

The solution was fiber optic technology. Instead of sending electrical signals through copper, fiber optic cables use thin strands of glass to transmit data as pulses of light. Because light travels so fast, this method is significantly quicker and more stable. Fiber optic technology is a superior way to deliver internet, as it can handle massive amounts of data without losing speed. This innovation is the primary reason you can watch high-definition movies without any buffering.

In Vietnam, this digital transformation has been remarkable. Companies like FPT Telecom and VNPT have worked hard to replace the old copper infrastructure with modern fiber optic networks, even in remote areas. This nationwide effort has provided millions of young Vietnamese people with the powerful tools they need to learn, create, and connect with the world, all made possible by tiny strands of glass carrying light.