a lot of = lots of 意思是“许多，大量的”,使用时需注意：1. 既可以修饰可数名词（复数形式），也可以修饰不可数名词。通常用于肯定句中。I have a lot of story books.= I have lots of story books.2. 不能用在疑问句及否定句中，此时要用many或者much.Do you have many story books?I don't have much time left.3. 不可和年、月、日、时等时间单位连用。 错误：She has slept for a lot of hours.正确： She has slept for many hours.4. ...
