Planting sunflower seeds is easy and can help even the smallest gardener feel successful in their gardening attempts.

　　38. What is the passage mainly about?

　　A. How to plant sunflowers.

　　B. Different kinds of sunflowers.

　　C. Ways to preserve sunflowers.

　　D. Tips on making your garden bright.

　　39. Why should enough space be left between sunflowers?

　　A. To prevent birds from eating sunflower seeds.

　　B. To offer the sunflowers enough sunlight.

　　C. To protect the ripe seed heads before harvest.

　　D. To help the sunflowers grow stronger.

　　40. Why do children love to grow sunflowers in their garden?

　　A. They want to decorate their garden with sunflowers.

　　B. The seeds are easy to plant and unnecessary to sort.

　　C. They want to share their own harvest with their parents.

　　D. Sunflowers don’t need too much soil fertilizer.

　　【解析】

　　试题分析:本文主要教人们如何种植向日葵。

　　38.A主旨要义题。根据短文However, planting the sunflower seeds is a skilled job.可知种植向日葵是一件技术活，本文主要讲的是如何种植向日葵，故选A。

　　9.C细节理解题。根据This allows ripe plants enough space for the seed heads to ripen without knocking the ripe seeds off before gardeners have a chance to harvest them.可知这是为了在收割之前保护成熟的向日葵花盘，故选C。

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