题型：阅读选择 题类：常考题 难易度：普通
初中英语牛津版（深圳·广州）八年级下册Module3 Animals Unit 5 Save the endangered animals同步练习
In nature, you may see many insects(昆虫) and animals of different colors. Have you ever wondered why?
Locusts are super delicious food for birds, but it is not always an easy job for birds to catch them. It is neither because locusts are good jumpers or runners nor because they are smarter than their enemies. The reason is that the colors, of locusts change with the colors of crops(庄稼). When crops are young, locusts look green. But when autumn comes, locusts change to the yellow and brown color as crops do.
Brown bears, tigers and other animals move quietly through forests. They can't be seen easily by their enemies. This is because they have colors similar to the trees. For the same reason, polar bears that live on a land of snow and ice are white. Butterflies and bees living among the flowers are colorful like flowers. Soil insects are mostly dark colored and they live under the soil(土壤)in a dark and wet environment. However, insects with colors different from plants can easily be found and eaten by others. So in order to survive, they have to hide themselves in the daytime and appear only at night.
Have you ever noticed some even stranger acts? The ink fish in the sea can send out some very black ink when it faces danger. As the ink spreads over, its enemies will find themselves suddenly in a dark world. At the same time the ink fish immediately swims away. That is how it keeps itself safe though it is not strong at all.
| ●After killing an animal, a cheetah waits half an hour to catch its breath. | ●The biggest horses are the Shire horses. The tallest on record is 198cms from shoulder to leg. | ●The only mammal that can fly is the bat. Bat's wings are overgrown hands. |
| ●Gorillas are actually very gentle animals although they have bad reputation (声誉). ●Gorillas build nests in tree tops to sleep in. | ●The rhino has the thickest skin of any animal. Its skin is 2cms thick and covers their body like armor. | ●An elephant's trunk has no bones in it, only 100,000 muscles!!! ●Elephant babies take 22 months to develop inside their mothers before they are born. |
| ●A kitten is born blind and helpless and stays close to its mother for protection. In just nine weeks, it can grow big enough to leave its mother and look after itself. | ●A camel's hump is actually used to store food. It is made of extra (多余的) fat. ●They have long legs to keep them as far away from the ground as possible | ● Bears usually walk on 4 legs, but when they are frightened, they stand up and walk on two legs to make themselves appear bigger. |
own make child themselves small job pay after or around |
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A myth(传说) is something that is not correct, but many people believe. There are a lot of myths about the human brain. One of the biggest myths is that we only use 10 percent of our brains. The next part of the myth is that if we can learn to use the rest of our brains, we'll be much smarter. People say this all the time, but it's not true! Tho truth is that although we don't know everything about the human brain, we know that each part of it has an important function(功能). Modern scientists think the"10 percent myth" ridiculous(荒谬的). The other most popular myth is about being" right brained" or" left brained". According to this myth, people who use the right side of their brains are more artistic and creative. People who use the left side of their brains are better at math and science. This is as popular as the 10 percent myth, and it's also wrong. In 2013, a study at an American university examined the right brain and left brain myth. According to the study, we use both sides of our brains equally. It's true that we use different parts of our brains for different things. We use our left side for language more, and our right side when we need to pay attention. But there is no evidence (证据) that creative people use the right side more, or that scientific people use the left side more. We've talked about myths, so let's look at a few interesting facts about the brain. First of all, the brain feels no pain. Second, about 75 percent of the brain is made of water. It's also the fattest organ(器官) in your body. Here's one more interesting fact about the brain. Around the time you turn 18 years old, it stops growing. |
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