学习通jump的过去时态是jumped。jump既可以是名词，也可以是动词。jump是动词时，指跳跃;跨越;快速移动;突升等。jump是名词时，指跳跃;暴涨;大幅度的变化;惊跳;(马术比赛中)障碍;(桥牌)跳叫等。
例句
‘Quick, jump!’ he shouted.
“赶快，跳!”他大声叫道。
The children were jumping up and down with excitement.
孩子们兴奋得跳来跳去。
She jumped down from the chair.
她从椅子上跳了下来。
The pilot jumped from the burning plane (= with a parachute ) .
飞行员从着火的飞机里跳伞了。
Can you jump that gate?
你能跳过那篱笆门吗?
His horse fell as it jumped the last hurdle.
他的马在跨越最后一个栏时跌倒了。
I jumped my horse over all the fences.
我纵马跃过了所有的栅栏。
He jumped to his feet when they called his name.
他们叫到他的名字时他一下子就站了起来。
She jumped up and ran out of the room.
她蓦地跳起来跑出房间。
Do you want a ride? Jump in.
你想搭车吗?快上来吧。