A. Useful expressions
1. offer----hold out sth. that you want to give to someone, say that you will give if the other person wants it 提出， 提供
常用 offer sb. sth.
The young man offered the old woman his seat.
offer 也与不定式连用，表示 愿意做某事
They offered to help us.
offer n. 提供，提议
Thank you for your offer of help
2. reach vt (get to, arrive in/at) 与宾语直接搭配， 不加介词
3.We reached the factory at four yesterday.
Get here/there/home get to school
如果不指明到达的地点时， 只能用arrive
When did they arrive?
4. discover vt. find or learn about (a place, a fact which exicts before) for the first
time 发现， 看出
Columbus discovered America in 1492.
We have discovered that he is quite careful in his work.
5.invent vt. make or design sth that did mot exist before 发明， 创造
Who invented electricty?
6. find discovered sth by chance, come across,
Look,! What I’ve found.
7. enough
We have enough seats for everyone . 作形容词用，放在名词前。
They cannot walk fast enough。 作副词用，放在形容词后
B.席间交际用语。
1）主人用语既要注意礼貌又不要使客人拘谨
Would you like some(pork, mutton…etc.)?
How /what about( a glass of beer, a cup of coffee,etc)?
Let me give you some more chicken. And have another pancake..
May I help you to have some more (soup, bencurd,etc.)
Please help yourself to (fish, salad,etc.)
Would you like another bowl of rice?
Make yourself at home。
2)客人用语既要注意礼貌又不要假装斯文。
It’s nice/delicious/unusual. 味道很好/很美/很有特色。
I wouldn’t say no to some of (pork,mutton,etc)我不会谢绝（猪，羊肉的）
It’s nice, but I think I prefer it well-done.味道很好，可我更喜欢烧熟了的。
The cake is well good, but I’m full. / I have had enough.
3)客人表示接受主人的建议时，可用。
Yes, please.
Just a little.
Let me try a bit,please.
4) 客人表示帮忙，可说，
Let me help you to set the table/clear the table /clean up/serve the coffee.]