一,下降
二,下降
三,上升
四下降
五下降
Where's the (降,特殊疑问句) schoolbag? It's under the (降,肯定语气) table.
Are the keys on the (升,一般疑问句) sofa? (降,肯定语气) Yes, they (降,肯定) are.
They are on the (降,肯定) sofa. (降,否定语气) No,they (降,否定) aren't. They aren't on the (降,肯定) sofa.They are on the (降,肯定) table.
注
一般疑问句读升调
特殊疑问句读降调
yes 和 no 都读降调
肯定陈述和否定陈述读降调