At one point along an open highway, I came to a crossroad with a traffic light. I was alone on the road by now, but as I approached the light, it turned red, and I braked to a halt. I looked left, right and behind me.

参考译文:在沿着一条宽阔公路上的一个地方，我来到了一个有红绿灯的十字路口。这时只有我一人在路上，但当我靠近红绿灯时，它变成了红色，我刹车并停了下来。我向左看，向右看而且还向我后面看了看。

备注:look behind =look behind me

【1】look left【不及物动词(look)+副词(left)用法】

Turn left at the third crossing.在第三个十字路口向左转。

They looked left, then right and crossed the street. 他们向左看然后向右看,穿过街道.

【2】look right【不及物动词(look)+副词(left)用法】

Turn right at the third crossing.在第三个十字路口向右转。

Look right and left before you cross a street.  过马路之前要向各个方面看看.

备注:以上第1句中的left(向左地)和第2句中的right(向右地)都是方位副词用法。

【3】looked at the left【介词(at)+方位名词(left)用法】

She was sitting on my left .她坐在我的左边。

Twist your body to the left, then to the right.先向左转体，再向右转体。

Take the next road on the left .在下一个路口向左拐。

【4】look at the right【介词(at)+方位名词(left)用法】

Take the first street on the right .走右手的第一条街。

She seated me on her right.她让我坐在她的右边。

备注:以上第3句中的left(左边)和第4句中的right(右边)都是方位名词用法。

【1】look behind【不及物动词(look)+副词(behind)用法】

 Don't look behind or you may fall.  别向后看,不然你会摔跤的.

备注:以上句中的behind为副词用法。

【2】look behind me【不及物动词(look)+介词(behind)用法】

Whenever you lose contact with the enemy, look behind you.  

如果你失去了敌人的踪迹, 转头看看.

备注:以上句中的behind为介词用法。

behind为副词和介词用法如下

【1】behind  adv.留在原处；留下来; 后面地

I was told to stay behind after school 我被告知放学后留下。

This bag was left behind after the class.这个书包是有人下课后落下的。

备注:以上句中的behind为副词用法。

【2】behind  prep.在…的后面,在…的背面/背后

There is a small street behind the station车站的后面有一条小街。

Who's the girl standing behind Jan?站在简身后的女孩是谁？

备注:以上句中的behind为介词用法。