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范畴:人与自然 主题:动物科普 体裁:说明文 难度:★★★★ 建议用时:7分钟 评价:___/10
(2025·金陵中学期末)The main characteristic(特征) of a bird is feathers. No other animal has feathers. Other important features of birds are wings and hollow bones(中空的骨头).
Birds fly by flapping(拍打) their wings and using air pressure to create lift under their wings. The peregrine falcon(游隼) is one of the fastest birds. It can reach speeds of over 100 miles per hour when diving. Feathers are important to birds because they keep them warm, help them to fly, and provide camouflage(伪装). Hollow bones also help in flying because they help make the bird light enough to fly.
Although an important characteristic of birds is flying, not all birds fly. Some birds that don't fly are penguins, kiwis and ostriches(鸵鸟). Penguins actually spend much time in the water. They are good swimmers. Ostriches are very fast runners. An ostrich can run faster than a horse!
There are all sizes of birds. Hummingbirds are some of the smallest birds, while ostriches are some of the biggest. Different types of birds eat different things. Some birds feed on plants, some birds eat insects and still others eat other animals like fish, snakes or mice. Birds are also known for their migration patterns. Some birds will travel far each season to find places with the right weather for them. A bird is sometimes kept as a pet. The most popular birds for pets are tropical(热带的) birds like parrots. Birds also have a history of helping humans with different tasks. They can carry messages and help hunt.
Read more about birds.
· An ostrich can run as fast as 43 miles per hour and grow as tall as 9 feet.
· Bluebirds are not really blue.
· The hummingbird can fly backwards, but it can't walk.
· The egg of a kiwi can weigh as much as 20% of the mother's body weight.
根据短文内容,完成表格。(每空一词)
Birds
Characteristics of birds What makes birds 1. ____ from other animals is feathers, wings and hollow bones.
How birds fly Birds flap their wings and 2. ____ air pressure to fly. Birds are light enough to fly with the 3. ____ of hollow bones.
Not all birds fly Penguins are good at 4. ____. Ostriches are fast runners.
Types of birds Hummingbirds are very small while ostriches are very 5. ____. Different birds 6. ____ on different things like plants and insects. Some birds fly 7. ____ to find a place to stay in each season. Some birds are kept as 8. ____ and some are trained as helpers.
Fun 9. ____ about birds An ostrich can run at a speed of 43 miles an hour and grow up to 9 feet in 10. ____. Bluebirds are not really blue and hummingbirds can't walk.
范畴:人与自然 主题:动物科普 体裁:说明文 难度:★★★★ 建议用时:7分钟 评价:___/10
(2025·金陵中学期末)The main characteristic(特征) of a bird is feathers. No other animal has feathers. Other important features of birds are wings and hollow bones(中空的骨头).
Birds fly by flapping(拍打) their wings and using air pressure to create lift under their wings. The peregrine falcon(游隼) is one of the fastest birds. It can reach speeds of over 100 miles per hour when diving. Feathers are important to birds because they keep them warm, help them to fly, and provide camouflage(伪装). Hollow bones also help in flying because they help make the bird light enough to fly.
Although an important characteristic of birds is flying, not all birds fly. Some birds that don't fly are penguins, kiwis and ostriches(鸵鸟). Penguins actually spend much time in the water. They are good swimmers. Ostriches are very fast runners. An ostrich can run faster than a horse!
There are all sizes of birds. Hummingbirds are some of the smallest birds, while ostriches are some of the biggest. Different types of birds eat different things. Some birds feed on plants, some birds eat insects and still others eat other animals like fish, snakes or mice. Birds are also known for their migration patterns. Some birds will travel far each season to find places with the right weather for them. A bird is sometimes kept as a pet. The most popular birds for pets are tropical(热带的) birds like parrots. Birds also have a history of helping humans with different tasks. They can carry messages and help hunt.
Read more about birds.
· An ostrich can run as fast as 43 miles per hour and grow as tall as 9 feet.
· Bluebirds are not really blue.
· The hummingbird can fly backwards, but it can't walk.
· The egg of a kiwi can weigh as much as 20% of the mother's body weight.
根据短文内容,完成表格。(每空一词)
Birds
Characteristics of birds What makes birds 1. ____ from other animals is feathers, wings and hollow bones.
How birds fly Birds flap their wings and 2. ____ air pressure to fly. Birds are light enough to fly with the 3. ____ of hollow bones.
Not all birds fly Penguins are good at 4. ____. Ostriches are fast runners.
Types of birds Hummingbirds are very small while ostriches are very 5. ____. Different birds 6. ____ on different things like plants and insects. Some birds fly 7. ____ to find a place to stay in each season. Some birds are kept as 8. ____ and some are trained as helpers.
Fun 9. ____ about birds An ostrich can run at a speed of 43 miles an hour and grow up to 9 feet in 10. ____. Bluebirds are not really blue and hummingbirds can't walk.
答案
1. different 2. use 3. help 4. swimming 5. big 6. feed 7. far 8. pets 9. facts 10. height
