英语划分句子结构:Let's have a look.

英语划分句子结构:Let's have a look.
英语划分句子结构:Let's have a look.

英语划分句子结构:Let's have a look.
这个是一个 祈使句
1） 祈使句有两种类型,一种是以动词原形开头,在动词原形之前加do (但只限于省略第二人称主语的句子).
Take this seat.
Do be careful.
否定结构：
Don't move.
Don't be late.
2） 第二种祈使句以let开头.
Let 的反意疑问句
a.Let's 包括说话者
Let's have another try,shall we / shan't we?
= Shall we have another try?
b.Let us 不包括说话者
Let us have another try,will you / won't you?
= Will you please let us have another try?

句子划分的话let's 是一个结构，然后have a look是动宾结构，所以划在一起

是个祈使句，以前还真没划分过祈使句，let's 引导祈使句have a look,或许将结构划分成动宾结构吧。不太确定，纯属揣测。

让我来帮你分析分析吧：
Let's have a look.=Let us have a look.
其中let 是谓语, 's是宾语，省to的不定式 have a look是宾语补足语.