Question

Why do plants grow in some places and not in others? Why does some land have so much 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 this beach has almost no food for plants.

1.What things don’t most plants need to grow well according to the passage?

A．Warmth.              B．Food.                C．Sandy beach

2.What does the underlined word “cracks” mean in the passage?

A．表面             B．缝隙                 C．夹层

3.From the passage, we know that it is        for plants to grow in dry places.

A．difficult                B．impossible           C．important

4.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 has little food for plants

5.The passage can most probably be found in a        book.

A．science              B．history              C．travel

 

Answer 1

【答案】

1.C

2.B

3.A

4.C

5.A

【解析】

试题分析：这篇短文主要描述了指物的生长环境的问题，介绍了植物为什么不能在一些环境条件生长的原因。

1.根据短文最后一段描述可知大部分植物不能在沙滩上生长，故选C。

2.联系下文of the stones to grow in.可知指的是石头的缝隙，故选B。

3.根据In very dry parts of the earth only a few unusual plants can grow.描述可知选A。

4.根据many of them will die because the sand on this beach has almost no food for plants.联系上文可知选C。

5.这篇短文主要描述了指物的生长环境问题，故最有可能在科学书籍中找到这类文章，故选A。

考点：关于植物生长环境的说明文

点评：本文中长句较多，一时很难读懂句子含义，注意多读几遍，不要强求非得理解一词一句的含义，能把握文章大意就行。然后带着问题阅读短文，一般就能顺利找出答题依据。对于不能直接找到根据的问题注意联系上下文，根据短文中心总结出正确答案。