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(二)
There are different kinds of plants and animals on Earth and they get their food in different ways. A food chain shows how living things get their food. Let's find out more about the amazing world of food chains.
Scientists call plants producers（生产者）, because they use light from the sun to produce food. Animals can't produce their own food. Instead, they must eat plants or other animals. This is why scientists call them consumers（消费者）. There are different kinds of consumer animals. The first kind only eats plants. The next kind only eats other animals. And the third kind eats both plants and animals. Bacteria and fungi（细菌和真菌） are also important in a food chain. They are decomposers（分解者）. For example, giraffes eat leaves and then lions eat giraffes. The bacteria and fungi work on the lions' waste and their dead bodies.
Knowing about food chains is important because it helps us understand how all living things live together. If we hurt one part of the food chain, it could lead to problems for many different animals and plants. Studying food chains also teaches us to be kind to the environment. When we learn how to protect animals and plants, we are helping to keep the food chain strong. This way, all living things can get the food they need and live happily.
(
A. A tree.
B. The sun.
C. A snake.
D. Some bacteria.
(
A. 2.
B. 3.
C. 4.
D. 5.
(
A.
B. C. D.
(
A. By studying what the food chain is.
B. By producing more food for consumers.
C. By learning how to protect plants and animals.
D. By taking notes about how all living things live together.
(
A. Useful Producers
B. Better Environment
C. Different Consumers
D. Important Food Chains
There are different kinds of plants and animals on Earth and they get their food in different ways. A food chain shows how living things get their food. Let's find out more about the amazing world of food chains.
Scientists call plants producers（生产者）, because they use light from the sun to produce food. Animals can't produce their own food. Instead, they must eat plants or other animals. This is why scientists call them consumers（消费者）. There are different kinds of consumer animals. The first kind only eats plants. The next kind only eats other animals. And the third kind eats both plants and animals. Bacteria and fungi（细菌和真菌） are also important in a food chain. They are decomposers（分解者）. For example, giraffes eat leaves and then lions eat giraffes. The bacteria and fungi work on the lions' waste and their dead bodies.
Knowing about food chains is important because it helps us understand how all living things live together. If we hurt one part of the food chain, it could lead to problems for many different animals and plants. Studying food chains also teaches us to be kind to the environment. When we learn how to protect animals and plants, we are helping to keep the food chain strong. This way, all living things can get the food they need and live happily.
(
A
)1. Which of the following can be the producer in a food chain?A. A tree.
B. The sun.
C. A snake.
D. Some bacteria.
(
B
)2. How many kinds of consumer animals are there in paragraph 2?A. 2.
B. 3.
C. 4.
D. 5.
(
B
)3. Which is the right order of the food chain according to the text?A.
B. C. D.(
C
)4. How could we help keep the food chain strong?A. By studying what the food chain is.
B. By producing more food for consumers.
C. By learning how to protect plants and animals.
D. By taking notes about how all living things live together.
(
D
)5. What can be the best title for the text?A. Useful Producers
B. Better Environment
C. Different Consumers
D. Important Food Chains
答案
1. A 2. B 3. B 4. C 5. D
