a lot用法

a lot的用法主要有以下几点：

1、作名词短语,表示“很多；多量”的意思,在句中可以作主语、宾语或表语,其后常有动词不定式短语作后置定语。

例句：Sometimes we have very little snow,but sometimes there’s a lot.有时我们这儿雪很少,有时却又很多。（这里a lot作主语）He’s given Mary a lot to eat.他给了玛丽许多好吃的东西。（这里a lot作宾语）This is a lot.这真多。（这里a lot作表语）2、作副词短语,在句中作程度状语,表示“很；非常；常常”的意思,可以修饰动词、感叹词、介词短语、形容词或副词的比较级。It usually rains a lot at this time of year.每年这个时候都经常下雨.（这里a lot修饰动词rains）Thanks a lot---that’s very kind.多谢,十分感激。（这里a lot修饰感叹词thanks）He is feeling a lot better.他感觉好多了。（这里a lot修饰比较级better）3、a lot前面可以被such,what,quite,rather等修饰，表示程度。I like him quite a lot.我非常喜欢他。How much money is left?还剩下多少钱?Rather a lot.还有相当多.4、a lot 可修饰可数或不可数名词,意为“许多”,“大量的”,相当于many或much,a lot of,lots of，通常用于肯定句,否定句中一般用many或much。There are a lot of books in the library.图书馆有许多书。（修饰可数名词）There's a lot of water over there.那儿有很多水。（修饰不可数名词）5、a lot 和其他词搭配构成习语。have a lot to answer for为糟糕的情况负责Jerry’s got a lot to answer for.If it weren’t for him,Ann would never have left Denver.杰里要为这一后果负责.如果不是为了他,安永远也不会离开丹佛。have a lot on your plate有很多困难的工作要处理She’s got a lot on her plate at the moment.她眼下有太多的事要处理。have a lot on/have a lot going on 近期很忙Do you have a lot on for tonight?你今晚很忙吗?have a lot on one’s mind把很多事情挂在心上He is a businessman.He always has a lot on his mind.他是一个商人，他总是记挂着很多事情。