托福机经2024:11月2日托福写作机经是什么(含试题回忆)

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2024年托福写作机经汇总

托福综合写作机经试题

阅读

1. Sliding Rocks and Dust
The surface of Mars is often disturbed by objects falling from space. As these space objects collide with Mars, they disturb the Martian surface and cause loose pieces of rock and dust to slide down slopes. The sliding particles leave behind visible streaks that are similar to the recurring slope streaks. Some scientists have suggested that the recurring slope streaks might perhaps be caused by sliding rocks and dust, and not by water.

2. Cold Temperature
Another issue is that the surface of Mars maybe too cold for liquid water to exist there. Water freezes at zero degrees Celsius, while the average temperature on Mars is minus 70 degrees Celsius. For that reason, the only water whose presence on Mars has been clearly established so far is frozen.

3. No Evidence from Specialized Instruments
One of our main sources of information about Mars is a research spacecraft that is currently orbiting Mars. The spacecraft carries specialized instruments that can detect various chemical elements and compounds on Mars's surface. However, the instruments on board the spacecraft have so far failed to detect any liquid water in the recurring slope streaks.

听力

1. First, the recurring slope streaks differ from streaks left behind by sliding rocks and dust in an important way. Sliding particles are typically set in motion by a space object colliding with mars. But space objects don't keep landing on the exact same part of the Martian surface year after year, right ？ That means that sliding rock and dust streaks do not appear in the same places year after year.
But that's exactly how the recurring slope streaks behave. They do appear and reappear in the exact same location over several years. This strongly suggests that they are actually caused by water that finds the same paths to flow through year after year. This makes a water origin very likely.

2. Second yes, the surface of mars is very cold,but salty water can remain liquid even at very low temperatures. Much lower than zero degrees Celsius. Many scientists think that it is very possible that the recurring slope streaks are actually formed by salty water that remains liquid even in the cold temperatures we find on mars.

3. Finally, it's true that the instruments on board the spacecraft have not detected liquid water in the streets so far. But there's a good explanation for that. Because the atmosphere on mars is very dry. Water that's directly on the surface of the streets evaporates, and so the instruments cannot detect it. Most of the liquid water that remains in the streaks is mixed with the Martian soil and is located slightly below the Martian surface. The problem is that the instruments on board the
spacecraft cannot detect water that's located slightly below the surface.

托福学术讨论写作机经试题

Doctor Diaz: In our upcoming lesson, we will explore the evolution of public health and its impact on the well-being of individuals. Considering the significant progress we've made in healthcare and nutrition, as well as the ongoing challenges such as sedentary lifestyles and stress, I'd like you to reflect on the following question: Do you believe that people are generally healthier now than they were in the past? Why or why not?
Kelly: I believe that people are generally healthier today than they were in the
past, and the advancements in medical care play a significant role in longer life expectancy. With the development of new drugs and treatments, we're able to combat illnesses that were once fatal, such as various forms of cancer and heart diseases.
Andrew: While it's true that we've made incredible strides in healthcare and nutrition, the lifestyle-related health issues we face today were less common in the past. It's not just about medical advancements; it's about how we live our lives day to day. The quality of life is being compromised by our poor eating and exercise habits.

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