take a look后加介词吗

后边加介词at，例如：

1、Let's take a look at the damage.让我们看看损失情况吧。

2、Take a look at these figures!看一下这些数字吧！

3、Investors would do well to take a look at the Swiss economy.投资者应该关注一下瑞士的经济。

4、Let's take a look at some of the figures involved.让我们看一下涉及的一些数字。