Ⅳ. 阅读理解
Why do plants grow in some places and not in others? Why does some land have so many plants growing on it, while other land has almost no plants growing on it at all?
To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass.
Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil found between the cracks of the stones to grow in.
Another thing plants must have before they can grow is food. What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on the beach has almost no food for plants.
1. According to the passage, plants need things to grow well.
A. two
B. three
C. four
D. five
2. From the passage, we can know it is for plants to grow in dry places.
A. easy
B. difficult
C. nice
D. important
3. The reason why most plants can't grow on the sandy beach is that .
A. there isn't enough sunlight
B. there is too much water
C. it is too noisy there
D. it has little food for plants

Ⅳ. 1~3 CBD

【解析】
1. 细节理解题。通读文章可知，植物生长需要的条件有温度、水、扎根的地方、养分，共四种，故答案为C。
2. 细节理解题。根据文章第二段“In very dry parts of the earth only a few unusual plants can grow.”可知，在干燥地区植物很难生长，故答案为B。
3. 细节理解题。根据文章最后一段“many of them will die because the sand on the beach has almost no food for plants.”可知，沙滩沙子几乎没有植物所需养分，因此大多数植物无法在沙滩生长，故答案为D。
【答案】
1~3 CBD
【知识点】
细节信息查找；植物生长条件；说明文阅读
【点评】
本文是一篇说明文，介绍了植物生长所需的多种条件。题目均为细节理解题，解题时需准确定位原文对应内容，提取关键信息进行作答，考查学生对文本细节的捕捉能力。