《2025年学霸组合训练八年级英语上册译林版南通专版》

一、阅读理解
|题目|体裁|字数|难度|建议用时|实际用时|正确率|
|沙|说明文|311|★★★★|7分钟|____分钟|____/4|
Sand, whether it's on the beach or in the desert, seems simple and the same. But in fact, there are many differences between the two types of sand. Let's explore these differences and learn about them.
Beach sand is usually made of small pieces of shells, coral, and other marine organisms(海洋生物). Over time, waves and the running water break these larger pieces into smaller ones, which then form the sand we see on beaches. Beach sand is often smooth and rounded, giving people a pleasant feeling. It's also rich in minerals(矿物) and nutrients(营养物) that come from the ocean and land around it.
Because of the minerals, beach sand can support many kinds of marine life. They live on the beach, feeding on organic matter. They are basic to the health of beach ecosystems.
Desert sand, on the other hand, is made up of tiny pieces of rocks and stones that have been broken down by wind. It's usually dry and not smooth, with sharp edges that can be uncomfortable to touch. Desert sand is short of the minerals and nutrients found in beach sand, making the desert a much harder environment for life to live in.
Because of the hard environment, some plants and animals have special body structures for living in deserts. For example, cactuses have developed thick leaves to store water, while animals like camels have developed the ability to store water in their bodies.

Beach sand and desert sand are different in their formation, shapes, and the environment they are in. Beach sand is rich in minerals and nutrients, supporting different kinds of marine life, while desert sand is dry and poor, with few plants and animals able to live there. Understanding these differences can help enjoy the unique beauty of each type of sand.
(B)1. Why does beach sand often feel smooth and rounded?
A. It is made of large pieces of coral.
B. Waves and water break it down over time.
C. It is rich in minerals and nutrients.
D. It is shaped along the way from the desert.
(C)2. Which question is answered in Paragraph 4?
A. Why is desert sand important?
B. What animals are found in the desert?
C. How does desert sand form and feel?
D. Where do animals live in the desert?
(A)3. What's the structure of the text? (P1= Paragraph 1 ...)

(C)4. What is the writer's purpose in writing the passage?
A. To discuss the challenges of living in deserts.
B. To describe the special beauty of sand places.
C. To explain the differences between beach sand and desert sand.
D. To talk about the formation of both beach sand and desert sand.

答案： 1.B 2.C 3.A 4.C