沙漠中生长的仙人掌叶子变成叶刺，说明生物能够        环境。影响仙人掌生长的非生物因素主要是        ；而过度放牧会使草原沙化，说明生物也能影响和         环境。

根据句意及所给首字母完成单词。

1. We h_____ got some meat in the fridge.

2. This is an orange and that is an a_____.

3. Do you like A_____ food?

4. Meat and fruit are h_____ food.

5. Have you got a_____ milk in the fridge?

6. Noodles are my f_____ food,and you?

7. There are three c_____ of juice on the table.

8. Whose watch is this? I_____ is Betty's.