用所学过的英语解释下列句子1.It keeps much of the warmth from getting out.

用所学过的英语解释下列句子
1.It keeps much of the warmth from getting out.
2.We should speak English as much as we can.划线部分为:as much as we can.
3.Jane is the same as Mary.划线部分为:the same age
4.I hurried up in order to catch up with him.
5.He is tall enough to touch the top of the shelf.