Đề ôn thi Đề thi vào lớp 10 Hà Tĩnh môn Tiếng Anh - Mã đề HTI-148

The Moon's surface is covered with (24) __________ craters, which are bowl-shaped basins. These are not volcanic; they are impact craters. They form when a meteoroid, an asteroid, or a comet collides with the lunar surface (25) __________ extremely high speeds. The energy released during the impact is immense, causing the impacting object to vaporize and (26) __________ into tiny pieces.

(27) __________, this powerful explosion digs out a large cavity and throws lunar soil and rock, called ejecta, far from the center. This creates the crater's distinct rim. The overall (28) __________ of these constant impacts is a landscape full of holes of all sizes. Earth has fewer visible craters because its atmosphere burns up most incoming objects. If our planet didn't have its protective atmosphere, its surface (29) __________ look much more like the Moon's. It's a key difference between the two celestial bodies.

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.