The reading is about ＿＿＿＿＿＿＿＿＿＿＿＿＿＿which the passage defines as ＿＿＿＿＿＿＿＿＿． The professor gives an example of＿＿＿＿＿＿＿＿＿to illustrate this. He (she) says ＿＿＿＿＿＿＿＿＿So this example (these examples) clearly illustrates _____________________.
では例題をもとに解説していきます。こちらはETS のSpeaking task 3のPractice test から引用しました。
Revealing Coloration Many animals use coloration to protect themselves from predators. One defensive strategy involving the use of coloration is what is known as revealing coloration. Animals employing this strategy have an area of bright color on some part of their body; this bright color is usually hidden from predators’ view. When approached by a predator, the animal suddenly reveals the area of bright color; this unexpected display of color startles or confuses the predator and provides the would-be prey with an opportunity to escape.
There’s a large tropical insect called the peanut bug—yes, like the peanuts that you eat—uh, and the peanut bug’s front wings are colored so that they blend in with their surroundings. But its back wings—which are usually closed and hidden—have these bright, colorful spots on them. And when the peanut bug’s attacked, it suddenly opens its back wings, and out pop these big, bright colors. And that surprises the predator, and gives the peanut bug a chance to get away. Um, and then you have a butterfly … called the morpho butterfly. And parts of the morpho butterfly’s wings are very shiny, they reflect a lot of sunlight; when this butterfly is resting, this shiny part of its wings is hidden … Now, morpho butterflies are often attacked by birds … So when a bird approaches, the morpho flies away …and when the morpho flap its wings, all the bird can see are flashes of light reflected from the morpho’s wings. Those flashes of light make it very difficult for the bird to follow the morpho, and the morpho is usually able to get away.
The reading is about revealing coloration which the passage defines as a defensive strategy involving the use of coloration to protect themselves from predators.
The professor gives an example of peanut bug to illustrate this. He (she) says peanut bugs have back wings that are closed and hidden, and they have bright and colorful spots on them. When attacked, they open and surprise the predator so they are able to get away.
Another example is the Morpho butterfly. Their wings are shiny and reflect a lot of sunlight. When attacked by birds, they flap wings that flash which makes it difficult for birds to follow. So these examples clearly illustrate revealing coloration.