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In the forest, there are many different kinds of plants and animals. They are all connected with each other. For example, bees play an important part in pollination. They fly from flower to flower to get pollen. While they are doing this, they help the flowers pollinate. If there are no bees, many plants can’t reproduce.
Trees are also very important. They provide food and shelter for many animals. The roots of the trees connect with the soil and help keep the soil in place. Without trees, the soil may be washed away by rain. All these plants and animals are part of the ecosystem. We should protect the ecosystem and keep it balanced.
4. What do bees do in the forest?
A. They build nests.
B. They play with flowers.
C. They help with pollination.
D. They eat plants.
5. What happens if there are no bees?
A. Many plants can’t reproduce.
B. The forest will be more beautiful.
C. Other animals will do the pollination.
D. Bees will come back soon.
6. What do trees do for animals?
A. They provide food and shelter.
B. They make the forest noisy.
C. They stop animals from moving.
D. They eat animals’ food.
7. What should we do according to the passage?
A. We should destroy the ecosystem.
B. We should protect the ecosystem and keep it balanced.
C. We should cut down all the trees.
D. We should kill all the animals.
Trees are also very important. They provide food and shelter for many animals. The roots of the trees connect with the soil and help keep the soil in place. Without trees, the soil may be washed away by rain. All these plants and animals are part of the ecosystem. We should protect the ecosystem and keep it balanced.
4. What do bees do in the forest?
A. They build nests.
B. They play with flowers.
C. They help with pollination.
D. They eat plants.
5. What happens if there are no bees?
A. Many plants can’t reproduce.
B. The forest will be more beautiful.
C. Other animals will do the pollination.
D. Bees will come back soon.
6. What do trees do for animals?
A. They provide food and shelter.
B. They make the forest noisy.
C. They stop animals from moving.
D. They eat animals’ food.
7. What should we do according to the passage?
A. We should destroy the ecosystem.
B. We should protect the ecosystem and keep it balanced.
C. We should cut down all the trees.
D. We should kill all the animals.
答案
4.C 5.A 6.A 7.B
解析
4.C 5.A 6.A 7.B
Swifts( 雨燕) live mostly in the air. These birds are among the fastest animals on Earth. In fact, swifts can go two or three days without touching the ground! To get used to the life in the sky, swifts use their speed and the saliva( 唾液) in their mouths.
Swifts can fly about 70 miles per hour. That’s because their wings are like boomerangs. This shape of the wings helps them to fly much faster. They can also move one wing faster than the other, which allows them to make sharp turns without slowing down. Making fast, sharp turns helps swifts catch flying bugs to eat.
The saliva helps swifts catch bugs to feed their young. It is sticky, like glue. Swifts often fly into clouds of bugs such as mosquitoes and open their wide mouths to catch as many insects as they can. The bird collects insects in its mouth gradually and holds the insects in a sticky ball of saliva. One food ball can contain nearly 1,000 bugs.
Swifts also use their saliva as glue to build their nests. The birds catch feathers in the air and stick the feathers together to build a strong nest on the side of a building. Swifts’ short feet are not good for walking or standing on land for long. But their sharp claws allow them to stick to rocks and walls so they can take a brief rest before returning their lives in the sky.
8. The second paragraph mainly talks about .
A. how fast swifts can fly
B. why swifts can fly and turn so fast
C. why swifts make sharp turns
D. how swifts turn around in the sky
9. Which of the following is TRUE about swifts?
A. Swifts can’t walk for a long time because of their short feet.
B. Swifts can fly for a long time because of their small bodies.
C. Swifts don’t live on land because of their wings.
D. Swifts can catch nearly 1,000 bugs in one go with the saliva.
10. Which of the following best shows the structure of the passage?
Swifts can fly about 70 miles per hour. That’s because their wings are like boomerangs. This shape of the wings helps them to fly much faster. They can also move one wing faster than the other, which allows them to make sharp turns without slowing down. Making fast, sharp turns helps swifts catch flying bugs to eat.
The saliva helps swifts catch bugs to feed their young. It is sticky, like glue. Swifts often fly into clouds of bugs such as mosquitoes and open their wide mouths to catch as many insects as they can. The bird collects insects in its mouth gradually and holds the insects in a sticky ball of saliva. One food ball can contain nearly 1,000 bugs.
Swifts also use their saliva as glue to build their nests. The birds catch feathers in the air and stick the feathers together to build a strong nest on the side of a building. Swifts’ short feet are not good for walking or standing on land for long. But their sharp claws allow them to stick to rocks and walls so they can take a brief rest before returning their lives in the sky.
8. The second paragraph mainly talks about .
A. how fast swifts can fly
B. why swifts can fly and turn so fast
C. why swifts make sharp turns
D. how swifts turn around in the sky
9. Which of the following is TRUE about swifts?
A. Swifts can’t walk for a long time because of their short feet.
B. Swifts can fly for a long time because of their small bodies.
C. Swifts don’t live on land because of their wings.
D. Swifts can catch nearly 1,000 bugs in one go with the saliva.
10. Which of the following best shows the structure of the passage?
答案
8.B 9.A 10.A
解析
8.B 9.A 10.A
