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female
milkweed
chemical
puzzling
奇普.泰勒
n. 生物学；生物
n. 蝴蝶
v. 移居；迁徙
adj. 奇异的；了不起的
adv. 完全地
n. 孙子;孙女;外孙;外孙女
n. 雌性的动物或植物；女子
n. (植)马利筋
n. 化学物质
adj. 令人费解的
Words and Expressions
What do we call the science that studies living things?
Biology!
Lesson 28
The Study of Living Things
plant
animal
insect
cell
gene
What are related to biology?
biologist
1. To read and understand the passage about North American butterfly
2. To review the use of attributive clauses
3. To learn some useful words and expressions: