1、Carnival必修 511.Their use was limited by laws,the first of which dates back to the fourteenth century.面具的使用受到法律的限制，最早可追溯到14世纪。2.If they broke the laws,they were put into prison for up to two years.如果他们违犯法律,就要被判处长达两年的监禁。3.If the masks come off,the magic is lost.如果面具摘掉了,魔力也就消失了。重点句型21.Their use was lim
2、ited by laws,the first of which dates back to the fourteenth century.面具的使用受到法律的限制,这最早可追溯到14世纪。(1)该句中the first of which是一个非限制性定语从句,修饰先行词laws。(2)date back to 相当于date from,意为“追溯到,始于”;常用于一般现在时,无被动语态。Their friendship dates back to their childhood.他们的友谊始于儿童时代。句型探究32.If they broke the laws,they were put into prison for up to two years.如果他们违犯法律,就要被判处长达两年的监禁。(1)put sb.into prison(prison前无冠词)=send sb.to prison 把某人送进监狱be in prison 坐牢句型探究4(2)up to达到(数量,程度);至多有I can take up to four people in my car.我的汽车最多能坐4个人。直到Up to now,hes been very quiet.直到目前，他一直很安静。句型探究5
