Đề ôn thi Đề thi vào lớp 10 Trường THPT Chuyên KHTN môn Tiếng Anh - Mã đề KHTN-62

(23) __________ A quick glance at her workspace reveals this incredible attention to detail. (24) __________

Have you ever wondered how you can bend your arm or kick a ball? It’s all thanks to your amazing muscular system. Muscles create movement by contracting, or shortening, but an important fact is that they can only pull, not push. To solve this, they must work in pairs. In (25) __________ pair, one muscle is the 'agonist' (the one that contracts) and the other is the 'antagonist' (the one that must relax). The agonist is primarily responsible (26) __________ the main movement.

For instance, when you bend your elbow, your biceps muscle contracts. (27) __________, your triceps muscle must relax to allow the arm to bend. To straighten your arm again, the roles reverse. This coordinated teamwork allows us to (28) __________ a huge range of motions, from lifting a book to running a race. The main (29) __________ of this pairing is smooth, controlled action. If a muscle didn't relax while its partner contracted, movement (30) __________ be almost impossible.

Genetically modified (GM) foods are created by changing the DNA of plants or animals to give them new, desirable traits. This technology is at the center of a global debate, with strong opinions on both sides. Supporters see it as a scientific breakthrough that can solve major world problems, while critics worry about the long-term consequences. This discussion is becoming increasingly relevant in many countries, including Vietnam.

The primary argument for GM crops is their ability to increase food production. In Vietnam, for example, the government has approved GM corn varieties that are engineered to resist pests. This means farmers can have larger harvests and use fewer chemical pesticides. Proponents say that because these crops are more resilient and produce more food, they can help ensure food security and improve the livelihoods of farmers by increasing their income.

However, there are also significant concerns. Critics question the long-term safety of eating GM foods, suggesting more research is needed to understand their effects on human health. There are also environmental worries, such as the potential for GM crops to cross-pollinate with wild plants, which could disrupt local ecosystems. These unanswered questions make some consumers and scientists cautious about fully embracing GM technology.

As a young person, the food on your plate, from corn chips to products with corn syrup, may contain ingredients from GM crops. The conversation about GM foods is not simple; it involves complex science, economics, and ethics. Understanding the different viewpoints is the first step towards forming your own informed opinion about what you choose to eat and the future of our food supply.

In the past, youth sports were primarily a local affair. Children played on teams with their neighbors and school friends, (37) __________. This shared experience was a cornerstone of many childhoods.

However, there has been a significant shift towards highly competitive travel teams. These elite teams recruit talented players from a much wider geographic area, (38) __________. As a result, the deep-rooted, everyday connections once formed on the neighborhood field are changing.

While travel teams offer advanced coaching and higher levels of competition, this intense focus can negatively impact local social circles, (39) __________. The demanding schedules, often filled with long-distance travel for weekend tournaments, also play a major role, (40) __________.

A. leaving less time for the spontaneous, unstructured play that builds local friendships

B. further reducing opportunities for casual hangouts with neighborhood friends

C. meaning teammates often do not live near each other or attend the same school

D. creating strong community bonds right in their own neighborhoods