自然景观与动植物词汇 — 英语填空题
题目
根据英文释义写出对应的自然景观或动植物单词，补全句子：1. A ___ is a very tall plant with a thick wooden trunk and green leaves. 2. Water falling from a high rock into a river below is called a ___. 3. A ___ is a small creature with eight legs that spins webs to catch insects. 4. Land between two hills or mountains is a ___.