英语情景对话：
A:What are you doing?
你在干什么？
B:I’m trying to put the vase on the shelf.
我想把这个花瓶放在架子上。
A:Let me give you a hand.
我来帮你一把。
B:No, thank you. I can manage it, I think.
不用了，谢谢。我想我可以对付。
习语：give sb a hand
解词释义：此处hand指“帮助”，特别是指“动手帮助”，所以give sb a hand意思就是“帮助某人”，give a hand可以单独使用，意思就是指“帮助”，相当于help。
拓展讲解：我们在hand前面加上big意思就是“热烈欢迎”。
支持范例：
1.帮助某人
Eg. I would have liked him to give me a hand, but found it embarrassing to ask.
我想找他帮忙, 又不好意思张嘴。
Eg. Don' t just stand about, doing nothing, give me a hand with the luggage !
不要无所事事地站在那里，帮我拿行李吧！
The kitchen's always so messy after we've had guests. Give me a hand to do it over, will you?
家里来了客人之后，厨房总是那么乱，请你帮助我们清扫一下好吗？
Keep your shirt on. I’ll give you a hand.
别急，我会助你一臂之力的。
2.热烈鼓掌
Eg. Let's all give them a big hand for their amazing creations.
让我们大家为他们的精彩杰作向他们鼓掌祝贺。
Eg. Let’s give the singer a big hand.
让我们给歌唱家热烈鼓掌。
