英语语法问题

Question

请问一下这一段英语句子有哪些语法，越细致越好，谢谢

Advertising is an important way of promotion in commercial business. What is an advertisement? Advertinsements are used to send commercial information about some commodities or services to the public.

最好再举几个简单的例子，非常感谢

Answer 1

你好，
Advertising is an important way of promotion in commercial business
（在商业中，广告是一种重要的宣传方式）
Advertising 动名词作主语，后接单数谓语
of promotion 修饰way，整体做way定语
同理，in commercial business 整体修饰promotion，做其定语

What is an advertisement?
（什么是广告？）
此特殊疑问句中，what疑问代词做主语
此特殊疑问句为陈述语气

Advertinsements are used to send commercial information about some commodities or services to the public.
（广告的用途是向公众传播商品、商业服务信息）

Answer 2

1，动词作主语时，谓语为单数。
2，is an important way of 一个什么重要的方法。
3，be used to 被用来做什么
4，What is an advertisement? Advertinsements ，为这句话的主语，而what又为前面的主语，所以，整句话为主语从句，前一小句又是what引导的主语从句。

Answer 3

1、Advertising是动名词做主语，Advert是动词形式
2、be used to do 被用来做… pencils are always used to write words.
3、send sth to sb 把某东西送给，寄给某人 I sent a letter to my frend last sunday.
4 in commercial business 在商业领域本回答被提问者采纳