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题型:任务型阅读 题类:真题 难易度:普通

You probably don't think about soil often, but the following report may help you learn about science of soil.

What is soil made of?

Soil is made of sediments (沉积物) and humus(腐殖质). Sediment is small pieces of rock broken down over time by rain, ice, and wind. Sediment is often found in water. Humus comes from decayed(腐烂的) plants and animals. It helps give plants a lot of the food they need to grow.

How does soil form?

Over centuries, rock breaks down into very small pieces.

The rock pieces mix with humus.

The humus gets thicker and thicker over time. Soil is formed(形成)l

How are soils different?

Soils can be different colors and have different textures(质感). Texture is how the surface of an object feels. Color and texture are two features(特征) of soil.

Plants and soil

Plants do not grow well in some soils. Sandy soi1 is too dry. It does not hold water. Soil with too much clay is too thick. Most plants grow well in dark, rich garden soil that has different sediments and a lot of humus in it.

The title (标题):  

The things in soil

Sediment is often found in water.

Humus       decayed plants and animals.

The steps of forming

Rock breaks down into very small pieces.

The rock pieces mix with humus.

The humus gets       .

   

Soils can be different colors and have different textures.

The relationship between plants and soil

       is good for plants to grow in.

举一反三
阅读短文及文后A~E选项,选出可以填入1~5各题空白处的最佳选项。

In an art studio in Wuhan, Hubei province, a delivery worker busily packed 1,500 original Chinese ink drawings and works. {#blank#}1{#/blank#} He hadn't left his studio for two weeks.

But these works represented only a part of Rong's large project to say thanks to the medical workers who helped Wuhan defeat COVID-19. They are the most recent batch of art in a project, which he will spend three years completing

{#blank#}2{#/blank#} He sent them around the country to thank the medical workers.

Rong draws cows and mice with the Chinese characters "shi shu bu yi" (meaning not easy) and "niu zhuan qian kun" (meaning to bring about big changes). "I want to express my thanks to the medical workers who helped Wuhan last year," Rong said. "{#blank#}3{#/blank#}Wuhan could not have recovered so soon without their sacrifice and hard work."

The artworks include beautiful postcards, notebooks and stamps. Some of Rong's works were donated to the National Museum, local museums and art centers to add to their collections. {#blank#}4{#/blank#}

To show support for Rong, a large delivery company, BEST, contacted him to say they were willing to deliver the works free of charge.

"{#blank#}5{#/blank#}" said Wu Guojie, manager of BEST's Hubei branch.

A. Since Spring Festival last year, he has produced more than 8,500 drawings.

B. They were all produced by Rong Zhengmao, a national senior artist.

C. We hope to use this chance to express our thanks along with Mr. Rong,

D. Around 7,000 pieces were sent last year at a cost of about 30,000 yuan.

E. Many of them came from faraway places, including Xinjiang and Heilongjiang

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