compare with与…比较,compare to比喻为
compare...with...把……和……比较(常表示同类相比,比较)
compare...to...把……比作……(常表示异类相比,比喻)
①Let's compare this article with that one.让我们把这篇文章和那篇文章作一下比较.
②The heart is often compared to a pump.心脏常被比作水泵.
compare的过去分词短语形式用作状语时,不管同类还是异类,compared with和compared to都可以用.例：
Compared with/to western countries,China uses materials very carefully.和西方相比,中国使用物资很节省.
In the 16-19 age group,32% of women smoke,compared to/with 28% of men.
在16-19岁年龄组中,与28%的男人相比,有32%的女人抽烟.