Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHXH môn Tiếng Anh - Mã đề KHXH-09

Neptune is the eighth and (35) __________ planet from the Sun. As a gas giant, it does not have a solid surface like Earth. It is primarily composed of hydrogen, helium, and methane. Its great distance means it receives very little heat from the Sun, making it one of the coldest places in our solar system.

The most remarkable feature of Neptune is its weather. The planet experiences the strongest winds ever recorded in the solar system. These winds can (36) __________ speeds of over 2,000 kilometers per hour, which is faster than the speed of sound on Earth. This makes Neptune an incredibly (37) __________ and dynamic world.

The source of these powerful winds is a puzzle. Not only is it extremely cold due to its distance from the Sun, but (38) __________ it also generate a surprising amount of internal heat. (39) __________ is what scientists believe powers the planet's extreme weather systems, creating the gigantic storms that race across its atmosphere.

Its beautiful blue color is not from water but from methane gas in its atmosphere, which absorbs red light and gives the planet its (40) __________ appearance. The most famous storm was the Great Dark Spot, observed by the Voyager 2 spacecraft in 1989. If you could visit Neptune, you (41) __________ see large, dark storms similar to Jupiter's Great Red Spot, though they appear and disappear more frequently.

(42) __________, Neptune is a planet of extremes: the farthest, the coldest, and the windiest. Its mysterious internal heat engine and turbulent atmosphere continue to fascinate astronomers, making it a compelling subject of study in our quest to understand the outer solar system.

In Vietnam, the sound of coins is becoming less common. Instead, you hear the beep of a smartphone scanning a QR code. From paying for a cup of trà sữa at a local stand to sending lucky money to cousins during Tết, digital finance has become a daily reality. E-wallets, such as MoMo and ZaloPay, are mobile applications that store your money electronically, allowing you to make payments with just a few taps. For teenagers, this technology is not just a trend; it's the future of managing personal finances, and your first e-wallet might be just around the corner, holding your allowance or money from a part-time job.

The popularity of e-wallets stems from their incredible convenience and speed. You no longer need to carry bulky wallets or worry about having the exact amount of cash. Transactions are instant, whether you're paying a friend back or buying a movie ticket online. Beyond simple payments, these apps often bundle other useful services, like paying for electricity and water bills or topping up your mobile phone credit. For many, they have become an essential part of daily financial life, simplifying tasks that once required more time and effort.

However, with great convenience comes great responsibility. The biggest challenge for new users, especially teenagers, is learning to manage money that doesn't feel 'real'. When you just tap a screen, it's easier to lose track of spending compared to handing over physical banknotes. Furthermore, the digital world has security risks. A common threat is phishing scams, which try to steal your login details or personal data. They often appear as urgent messages or fake promotions, tricking users into revealing sensitive information that can lead to financial loss.

Fortunately, using an e-wallet safely is achievable with good habits. The first step is to create a strong, unique password that isn't easy to guess. Secondly, always enable two-factor authentication (2FA) if the app offers it. This adds an extra layer of security by requiring a second code, usually sent to your phone, to log in. Be very cautious when using public Wi-Fi networks, as they can be less secure; it's better to use your mobile data for financial transactions. Finally, make it a habit to regularly review your transaction history to spot any unauthorized activity immediately.

Your first e-wallet is more than just a payment app; it's a stepping stone towards financial literacy. By understanding both the benefits and the risks, you can harness the power of digital finance responsibly. Learning to secure your account, track your spending, and identify potential scams are crucial skills. Mastering them now will not only protect your money today but also prepare you for a future where managing finances online is the norm.