他突然跳起来，因为有人在他背后拍了他的肩膀。

He ___jumped suddenly when someone tapped his shoulder from behind.

这本书跳过了第三章直接讲第四章。

The textbook ___skipped chapter three and went straight to chapter four.

汽油价格在假期前突然上涨了。

The price of gasoline ___jumped right before the holiday.

一听说有免费音乐会门票，他立刻欣然接受了。

He ___jumped at the offer of free concert tickets.

他突然跳了起来，因为看到了一只蜘蛛。

He suddenly ___jumped when he saw a spider.