实验药品

鉴定对象

实验现象

A

斐林试剂

蔗糖

砖红色沉淀

B

醋酸洋红酸性染料

染色体

红色

C

溴麝香草酚蓝水溶液

二氧化碳

由蓝变黄，再变绿

D

健那绿

线粒体

蓝绿色

What do they usually do?

John Smith lives in a basketball club. He gets up at five thirty every day. After that, he runs. At eight o'clock, he eats breakfast.

Tom White is a writer. He gets up at eight o'clock in the morning. He usually reads books for two hours after breakfast.

Mary Green is a music teacher. She gets up at six o'clock every morning. Then she eats breakfast. She lives at school but she isn't with her parents.

Mona Black is a clerk. She works at a clothes store. She usually gets up at six thirty. After breakfast she goes to the store by bus.