简单英语句子分析Also by using the internet,more old people can study nesw things or get latest news without having to go to the library or buy a newspaper,请问 Also 此处是连词吗,还有Also by using the internet是介词短语做条件状语吗》还有without having to go to the library or buy a newspaper改成without going to the library or buy a newspaper在语法上有错误吗?

also不是连词，在这儿是随同介词短语前移以示强调。一般句顺序是：More old people can also study...by using the interenet 。这样一变，你就可以看出，它是副词了。without having to go to与without going to的意思是不一样的：前者是have to结构，具有“不得不...”的意思，后者没有。改变后，语法没错误，但与原文意思有出入。

also 副词， by ```方式状语，通过使用电脑
without having to go to the library or buy a newspaper，不需要去图书馆或买报纸
没有have to，意思就不一样了，那就是没有去图书干和没有买报纸
还有without having to go to the library or buy a newspaper改成without going to the library or buy a newspaper在语法上有错误吗？
语法错误，应该写成 without going to the library or buying a newspaper

我的回答如下：
1） 请问 Also 此处是连词吗,还有Also by using the internet是介词短语做条件状语吗》
Also 是副词,在这里起到承上启下的作用,它主要修饰 by ...介词短语.这里是还是介词短语作状语,表示方式方法的状语；
2） 还有without having to go to the library or buy a newspaper改成without going to the library or buy a newspaper在语法上有错误吗?
回答此问题,应当先看看原句中 without having to ...短语.having to ...是 have to ...的变形,主要是受到介词 without 的影响,变为动名词,原意是“必须.”或“不得不.”的意思.若按照你所改动去掉了 having to ...的话,就失去了原文“必须.”或“不得不.”的意思,而且这里的“必须.”或“不得不.”意思在原文中还特别重要.
3） 你的改动“改成without going to the library or buy a newspaper在语法上有错误吗?”有语法错误,主要体现在 buy 一词没有变为动名词.“without going to the library or buying a newspaper”就对了.不过我不建议你改动原文的意思,因为原文没有任何错.