为了帮助大家更好的完成老师布置的任务。精品学习网中考频道为大家提供了中考英语难点语法，供大家做完之后参考。

when: Don't get excited when you talk. 讲话时别激动。

while: We must strike while the iron is hot. 我们要趁热打铁。

as: He smiled as he passed. 他经过时笑了笑。

before: It will be five years before we meet again. 要五年后咱们才能再相见。

since: How long is it since you came to London? 你到伦敦有多久了?

whenever: Whenever it is possible, they play outside. 一有机会他们就到外面玩耍。

after: I'll tell them after you leave. 我将在你走后告诉他们。

until, till: I propose waiting till the police get here. 我建议等警察来了再说。

精品小编为大家提供的中考英语难点语法大家仔细阅读了吗?最后祝同学们学习进步。