《2025年启航新课堂九年级英语上册人教版》

(D)
①If you dig in a garden, you may discover much more than just soil. Take a closer look, and you might find ants, plant roots and many tiny living things. Even though they are hard to see, a world of life does live in the soil.
②In fact, healthy soil is “alive” because it's home to worms, insects, and tiny living things. Soil is an ecosystem(生态系统) where earthworms(蚯蚓) play a very important part.
③Earthworms like soil for several reasons. One is that it has their food. Earthworms eat decaying(腐烂的) plant matter such as fallen leaves, fruits, and vegetables, as well as dead roots and the remains of dead animals.
④Another reason earthworms like soil is that it protects them. Soil serves as a natural hiding place for earthworms, protecting them from being caught by bigger animals like birds. Also, soil protects earthworms' soft bodies. By staying underground, earthworms avoid being dried out by the sun, which helps them keep wet and a lower body temperature.
⑤Not only is soil good for earthworms, but earthworms are also good for soil. They play an important role as decomposers in it. Earthworms eat some pieces of soil along with plant and animal matter. They break these things down into smaller and simpler pieces and then make them out of the body as excreta(排泄物). The excreta is full of nutrients(营养物) that are good for plants and can be taken by them more easily.
⑥Besides making soil richer with their excreta, earthworms also improve soil structure. They move and dig tunnels(通道) in soil. This allows oxygen(氧气) to enter and helps water go into soil better. Tunnels also create space for plant roots, so that they can grow more easily and deeper into the ground.
⑦Earthworms are necessary members living in soil. The relationship between earthworms and soil is mutually(相互地) beneficial. They depend on each other and work together to keep the balance and maintain(维持) the health of the garden ecosystem.
( )56. How does the writer develop his idea that earthworms like soil? A. By raising questions. B. By listing numbers. C. By giving reasons. D. By comparing differences.
( )57. What does the underlined word “decomposers” in Paragraph 5 mean? A. 生产者 B. 消费者 C. 分解者 D. 调节者
( )58. Which is the right order to show the cycle in a soil ecosystem? a. Plants grow. b. Earthworms produce excreta and dig tunnels. c. Nutrients, oxygen, water and space are offered to soil. d. Earthworms eat dead plants and soil pieces. e. Plants die and fall into soil.

( )59. Which of the following shows the structure of this passage?

答案： 56. C
57. C
58. A
59. B