be supposed to be和be supposed to do的区别是：

be supposed to be后面加形容词或者名词，意思为应该成为。

be supposed to do后面加动词原形，意思为应该做某事。

例句：

1

So be supposed to enjoy the boring life.

想想学校的生活吧，现在算是天堂级别的了。

2

If you were a lemon, you would not be supposed to dwell on the sweetness ofwatermelon.

如果你是一只柠檬，就不该老是盯着西瓜的甜。

3

I must write down each hour to be supposed to do any, perhaps I incompletelyilluminate do, but must subscribe this plan.

我要写下每个小时该干什么，也许我不完全照做，但还是要订下这个计划。

4

It be widely supposed to have be lose during the war

普遍认为那东西在战争期间丢失了

5

I was all that the most hardened, unthinking, wicked creature among our commonsailors can be supposed to be. He failed in the terminal examination. He is a realterror.

我完全变成了一个麻木不仁、没有脑筋、作恶多端的水手。他没有通过期末考试，真令人伤脑筋。

6

In addition, you also will be supposed to be a supporter for company's furtherpromotion activities around your school.

作为校园代表，主要任务是为公司搜集有效的留学人群信息，并辅助于该校区内的相关宣传活动。