Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-45

The custom of removing shoes before entering a home is a common practice in many cultures around the world. This tradition is rooted in both practical and symbolic reasons that reflect a deep respect for the home. (23) __________. (24) __________

In the deep ocean, where there is no sunlight, live many strange and wonderful creatures. Many of these animals have the amazing ability to produce their own light. This is called bioluminescence, and it (25) __________ by a chemical reaction in the animal's body. The light is used for many reasons. For example, some fish use it to attract prey, making it easier to hunt. This unique ability has (26) __________ them to survive for millions of years.

(27) __________, the light isn't just for hunting. It also (28) __________ a vital role in communication. A firefly squid, (29) __________ is a small creature found in Japan, can flash its lights to send signals to other squids. In terms of defense, if a fish feels threatened, it might release a bright flash of light. This can temporarily blind a (30) __________, giving the fish a chance to escape. It is truly a fascinating survival mechanism.

Across Vietnam's busy cities, from the crowded alleys of Hanoi to the wide boulevards of Ho Chi Minh City, a new sound is emerging—or rather, a lack of it. The quiet hum of electric motorbikes is steadily replacing the roar of traditional gasoline engines. Promoted by companies like VinFast, these e-motorbikes are presented as a modern, green solution to urban transportation challenges, especially popular among students and young professionals.

The most obvious advantage of e-motorbikes is their contribution to cleaner air. They produce zero tailpipe emissions, which means a significant reduction in the pollutants that cause urban smog and respiratory problems. This is a crucial benefit for densely populated cities. Furthermore, their quiet operation helps to decrease the constant noise pollution that characterizes many urban environments, creating a more peaceful atmosphere for residents.

However, the 'green' label of e-motorbikes is more complicated than it appears. The electricity used to charge them must come from somewhere, and if that power is generated by burning coal or other fossil fuels, the environmental benefit is reduced. Moreover, the production of lithium-ion batteries is energy-intensive, and their eventual disposal raises serious environmental concerns if not managed responsibly. These batteries contain materials that can be harmful to the ecosystem.

In conclusion, while electric motorbikes are a positive step towards reducing direct air and noise pollution on city streets, they are not a complete solution on their own. Achieving a truly sustainable transportation future in Vietnam will depend not only on adopting cleaner vehicles but also on developing greener sources of energy to power them. The journey to a clean future is complex, requiring changes on multiple fronts.

Pocket money apps are increasingly popular among modern families, offering a new way for parents to give children their allowance. (37) __________. They help children manage their allowance digitally, (38) __________, which advocates say prepares them for a cashless society.

However, some critics worry about the potential downsides. Many of these platforms have built-in features that link directly to online stores, (39) __________. This immediate gratification could encourage impulse buying rather than thoughtful saving.

Ultimately, the debate highlights a crucial point. (40) __________. Without active involvement, these apps might just become tools for spending rather than for learning.

A. by allowing them to set savings goals and track their earning and spending

B. Therefore, parental guidance is essential to ensure these apps become effective educational tools

C. making it incredibly easy for them to spend money with just a few taps

D. These apps often claim to teach valuable lessons about financial literacy