2026 수능특강 영어 23강 변형

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

The consensus seems to hold that moths are not so much attracted ____ lights as they are trapped by them.

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

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

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

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

Everyone is familiar ____ moths circling their porch lights.

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

There is a problem from biology called “the paradox of ____

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

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

Yet, ____ fact, sometimes the opposite happens.

An increase in the food available to rabbits, for example, in a given area might lead to an overabundance ____ rabbits, 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 ____ can actually pose a threat to the population of wolves.

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

More is not ____ 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 ____ to observable facts.

____ planet is about 4.6 billion years old.

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

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

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

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

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

As a result, Basement Complex rocks are only visible at the ____ 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 line of ____ some still active, some long dry.

The ____ toward equilibrium, a minimum energy 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 proceed ____ completion where no further reaction occurs.

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

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

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

Natural systems are ____ isolated.

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

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