英语并列句的成分分析Thepriceofbooksforourstudentsisjustgettinghigherandhigherand,combinedwiththerisingcostoftuition,it‘skillingthesekids.中的combinedwiththerisingcostoftuition是状语还是谓语?并列句

Question

英语并列句的成分分析
The price of books for our students is just getting higher and higher and,combined with the rising cost of tuition,it‘s killing these kids.中的combined with the rising cost of tuition是状语还是谓语?并列句中的连词有时候可以省略吗?and在连接两个句子的时候,有的没有逗号,有的有,究竟怎么看啊?

Answer 1

1、 combined with the rising cost of tuition,是插入成分,做状 -- 可以移至句首：句子就是：
Combined with the rising cost of tuition,the price of books for our students is just getting higher and higher and it‘s killing these kids.中的combined with the rising cost of tuition.
2、这里and 后的逗号,和后面另一个逗号,它们之间的部分是插入成分.
3、有关and 前加逗号的问题：一般情况下,and连接两个完整句时加逗号（也可以不加）,连接单词时往往不加,比如：
You are a teacher,and I am s student.(两个完整句,加）
I have a pencil and a ballpen.（两个单词,不加）