Question

"需要注意的是，"，英语怎么说

Answer 1

注意用英语说法可以是pay attention to。
翻译例句：
I jumped on the wall to grab the attention of the crowd.
我跳上墙头以引起众人的注意。
Luckily， I'd noticed where you left the car.
幸好，我注意了你停车的地点。
She noticed several small errors in his work.
她注意到他作业中有几处小错。
The cashiers were asked to watch out for forged banknotes.
出纳员接到要求，要注意伪钞。

Answer 2

一般用相关句型表达：
1.It is a remarkable fact that...
2.It is noteworthy that ...
3.It is rather remarkable that...
4.It's important to note that...
5.It is worth while to note that ...
6.It's worth nothing that...

许多网友会心存疑惑，我列举的是插入语吗，我列举的是 I am sure，I' afraid, 等 都是插入语（插入句）
相关知识可以看http://hi.baidu.com/zhangxianbao/blog/item/89cc0a46f9adef086b63e5df.html