help的固定搭配如下：Help someone with something、Help someone (to) do something、Help oneself to (something) 。
Help someone with something.帮助某人做某事。
I helped him with his application and he didn't even thank me. 我帮他填写他的申请表，他连谢谢都没有。
Help someone (to) do something.帮助某人做某事。
Ask Bailey to help you take some stuff back. I think she leaves on the 25th. 叫Bailey帮你把一部分东西拿走，我记得她是25号离开。
Help oneself to (something) 自便。
Help yourself to the drinks and snacks. Have whatever you want. 自己去拿饮料和小吃吧。想吃什么就拿什么。
Help的动词短语：Help out.帮助解决难题/帮助脱离困境。
造句：
1、How did Yuan Longping help people have enough food?
袁隆平是如何帮助人们吃饱饭的？
2、Our task is to help students reach their goals through mentoring.
我们的任务是通过指导帮助学生实现他们的目标。
3、"We are going to help out at a homeless shelter（收容所）on Thanksgiving Day."
“感恩节我们要去流浪者收容所帮忙。”
4、It helps to exercise a person's mind.
它有助于锻炼一个人的心智。
5、I'm not a trained musician, but I've learnt to read music so I can help Maria in her performance.
我不是一个训练有素的音乐家，但我已经学会了识谱，这样我就可以帮助玛丽亚的表演。