一、先测测你是否会想当然
1. 请先观察以下短语,这几组短语至少在表示某一意思时它们是反义词:
(1) up 与 down 是一对反义词,前者表示“向上”,后者表示“向下”。如:
He continued to jump up and down like a boy at a football match. 他不停地上蹿下跳,活像个足球赛中的男孩。
Aircraft can avoid each other by going up and down, as well as by altering course to left or right. 飞机可以通过上下升降和左右移动改变航线来避免相撞。
(2) upstairs 与 downstairs是一对反义词,前者表示“楼上”,后者表示“楼下”。如:
The bedrooms are upstairs and the dining-room is downstairs. 寝室在楼上,餐厅在楼下。
与单词:slow down 相关的例句或者名人名言
Friction gradually caused the sliding box to slow down and stop.