2026 수능특강 영어 23강 변형

____ has been a lot of discussion on why moths are attracted to light.

The consensus seems to hold that moths are ____ so much attracted to lights as they are trapped by them.

The light becomes a sensory overload that disorients the insects and sends them into a holding ____.

A hypothesis called the Mach band theory suggests that moths see a dark ____ around a light source and head for it to escape the light.

Another theory ____ that moths perceive the light coming from a source as a diffuse halo with a dark spot in the center.

The moths, attempting to escape the light, fly toward that imagined “portal,” ____ them closer to the source.

As they ____ the light, their reference point changes and they circle the light hopelessly trying to reach the portal.

Everyone is familiar with moths circling their porch ____.

Their flight appears to have no purpose, but they are, it is believed, trying to escape the ____ of the light.

____ is a problem from biology called “the paradox of enrichment.”

Intuitively, one would think that a population of predators would tend to do better if the amount of food available to its ____ were to increase.

____ food for the prey means that more prey is available to the predator, and hence the predators’ population should expand as well.

Yet, in fact, sometimes the ____ happens.

An increase in the food available to rabbits, for example, in a given area might lead to an overabundance of ____, and increase the population of its predator — say, wolves — until the population of wolves becomes unsustainably large and is destabilized.

So, more food for the rabbits can actually ____ a threat to the population of wolves.

This example shows that our ____ intuition — that more food and hence more prey is always good for a predatory group — is flawed.

More is ____ always more, at least in the case of predators and prey.

The paradox of enrichment shows that our intuitions about abundance and enrichment do not always conform to observable ____.

Our ____ is about 4.6 billion years old.

Much of the ____ is underlain by rocks that date back to between 2.5 billion and 500 million years ago.

These rocks ____ been greatly altered by extreme heat and pressure and have long been known by the very general term Basement Complex.

The Basement ____ rocks have undergone periodic intervals of uplift and deformation followed by intervals of prolonged erosion.

They are overlain by more or less undeformed ____ rocks that were laid down by water, wind, and ice.

This sedimentary cover is up to ____ kilometres thick and occupies well over half of the present Sahara.

As a result, Basement Complex rocks are only ____ at the surface of the Sahara in about 15 percent of its total area.

The contact between Basement Complex and sedimentary cover is often very sharp and is sometimes evident as a ____ of springs, some still active, some long dry.

The drive toward equilibrium, a minimum ____ state where there is no further tendency to change, is one of the fundamental principles of chemistry and physics.

Falling objects come to rest at the lowest energy state; chemical reactions ____ to completion where no further reaction occurs.

While this ____ force is manifest everywhere, natural systems, even when they are at a steady state, are usually far from equilibrium.

At equilibrium, properties such as temperature and pressure are ____ throughout the system, and the system is isolated from external influences.

That is not the natural world! One of the benefits of ____ experiences is that when we actually try to measure properties at equilibrium, it becomes evident that controlling the conditions for such perfection to appear is very difficult indeed.

Natural systems are not ____.

Matter flows in and out; properties such as ____ and pressure change continuously.

Natural phenomena do not exist in static equilibrium ____, but are in movement at all scales.