【明報專訊】Across

1. The fruits of many cactus species are edible. Among them, the _ _ _ _ _ _ fruit (火龍果) is probably the variety most familiar to us.

2. Cacti store water in their _ _ _ _ _.

3. All species of cacti except one are native to the Americas. They also grow in _ _ _ _ _ _ (非洲) and Sri Lanka (斯里蘭卡).

4. Cacti survive extremely hot and dry environments. That is why they are often found in _ _ _ _ _ _ _.

Down

5. The roots of cacti grow near the surface of the ground and spread out widely so that they can _ _ _ _ _ _ as much as possible after rainfalls.

6. Most cacti have no _ _ _ _ _ _. They have only long and sharp spines, which are a modified version of them.

(answers on next text)

■Glossary

edible (adj) 可食用的

spine (n) 刺