People usually sing because they like music or because they feel happy. They express their happiness by singing. When a bird sing, however, its song usually means much more than that the bird is happy. Birds have many reasons for singing. They sing to give information. Their songs are their language.
The most beautiful songs are sung by male (cock) birds. They sing when they want to attract a female (hen) bird. It is their way of saying that they are looking for a wife.
Birds also sing to tell other birds to keep away. To a bird, his tree or even a branch of tree, is his home. He does not want strangers to come near him, so he sings to warn them.
If a bird cannot sing well, he usually has some other means of giving important information. Some birds dance, spread out their tails or make other sings. One bird has a most unusual way of finding a wife. It builds a small garden of shells and flowers.
21. Why do people usually sing ?
A. They like birds. B. They feel happy.
C. They want to tell a story . D. They like studying music.
22. Which birds sing the most beautiful songs ?
A. Birds in a good temper. B. Cock birds.
C. Hen birds. D. Female birds which attract male birds.
23. What warnings does a bird sometimes sing ?
A. A warning to keep away. B. A warning to come quickly.
C. A warning about the approach of people D. A warning to stop singing.
24. What do most birds usually do if they cannot sing well ?
A. warn other birds to go away. B. give their information in another way.
C. find a wife. D. fly high in the sky.
25. What is one bird's unusual way of attracting a hen bird ?
A. It dances. B. It spreads out its tail.
C. It searches for a wife. D. It uses shells and flowers to make a garden.
21. Why do people usually sing ?
\(\Rightarrow\) B. They feel happy.
22. Which birds sing the most beautiful songs ?
\(\Rightarrow\) B. Cock birds.
23. What warnings does a bird sometimes sing ?
\(\Rightarrow\) A. A warning to keep away.
24. What do most birds usually do if they cannot sing well ?
\(\Rightarrow\) B. give their information in another way.
25. What is one bird's unusual way of attracting a hen bird ?
\(\Rightarrow\) D. It uses shells and flowers to make a garden.
21, B
22,B
23,A
24,B
25, D
Theo mình
21,b
22,b
23,a
24,b
25,d
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