请问下面画线部分分别在句子中做什么成分?同位语还是插入语?如果是同位语,那是谁的同位语?
1. Efforts to equalize the funds available to school districts, a major goal of education reformers and many states in the 1970's, have not significantly reduced the gap that exists between the richest and poorest districts.
2.Neanderthal had a vocal tract resembling an ape's and so were probably without language, a shortcoming that may explain why they were supplanted by our own species. |