四、Sam 查找了更多有关植物的知识。阅读下面内容，选择正确选项。
A leaf is like a small factory（工厂）. We can find leaves on stems and branches（枝条）. Each leaf has a petiole（叶柄）. All leaves have a flat part called a blade（叶片）. When sunlight shines on the leaf, it makes food for the plant. The plant uses the food to grow. Then it will have flowers and fruit. Flowers and fruits can make more seeds.

() 1. Where can we find leaves?
A. In roots. B. On stems and branches. C. In seeds.
() 2. When sunlight shines on the leaf, it makes for the plant.
A. water B. food C. seeds
() 3. Which one is the best title?
A. Leaf Factory B. Plant Food C. Beautiful Leaves

1.B 2.B 3.A

五、Sam给大家分享了植物科普书的内容。请将植物部位的名称写在对应的横线上。
Parts of a tomato plant

The 1. are green.
This is the 2. .
Look at the 3. .
These are 4. .

1. leaves 2. stem 3. roots 4. flowers