Unit2 I think that mooncakes are delicious!
Section B
1.They may turn off the lights and light candles.
light的不同词性，不同含义
turn off the lights 关灯
light candles 点燃蜡烛
说出下列句子中light的词性和含义：
1.The driver failed to stop at a red light.
2.I read by the light of the fire.
3.You should take some light clothes.
4.You look nice in light colors.
5.Traffic is lighter before 8 a.m.
6.He stopped to light a cigarette.
参考答案：
1.交通灯2.光线，光亮 3. 轻薄的
4.浅色的 5.不拥挤的 6.点燃
注意light的过去式和过去分词：
light-lighted-lighted
或light-lit-lit
2.This means that jf you don’t give them a treat, they’ll play a trick on you!
trick or treat是愚弄还是招待
trick n.玩笑，花招，愚弄。
play a trick on sb.愚弄，开玩笑
Don’t play a trick on the old man.
不要愚弄那老人。
treat的动词和名词形式是一样的，动词需要掌握三种含义：
1.对待
She treats me like one of the family.
她把我当作家人看待。
2. 治疗
It was difficult to treat patients because of a shortage of medicine.
由于缺少药物，很难给病人治病。
3. 招待
Could I treat you to dinner tonight?
我今晚可以请你吃饭吗？
3.But behind all these things lies the true meaning of Christmas: the importance of sharing and giving love and joy to people around us.
倒装句, 介词短语behind all these things置于句首引起句子倒装。
主语是the true meaning of Christmas: 谓语是lies，
Under the big tree was lying a dog.
lie behind 背后存在; 是 ... 的原因
I wonder what lies behind his decision to leave.
我不知道他决定离开的理由是什么。
lie的不同含义：
If you feel unwell, go and lie down.
如果你感到不舒服，就去躺下。
The novel is lying on the table.
小说平放在桌子上。
The village lies at the foot of a hill.
这村庄坐落在一个小山脚下。
4.He is mean and only thinks about himself. He doesn’t treat others nicely.
mean的用法
adj. 吝啬的；刻薄的；自私的
Mr. Smith is a mean old man.
史密斯先生是一个小气的头老。
She"s too mean to make a donation.
她很小气, 不肯捐款。
v. 意思是；打算；意味
What does this word mean?
这个单词是什么意思？
I mean to call on you tomorrow.
我打算明天看望你。
5.Marley used to be just like Scrooge, so he was punished after he died.
used to do sth. / be used to doing sth. / be used to do sth. 的区别
1. used to do sth.意为“过去常常”, 其后跟动词原形, 表示过去的习惯、经常发生的动作或状态。
I used to go to the cinema, but I never have time now.
2. be used to doing sth.表示“习惯于做某事”, 其中to是介词, 后接名词或动名词。
The old man and his wife have been used to living a simple life.
3. be used to do sth.表示“被用来做某事”。
This computer is used to control all the machines.
练一练：
This building is a department store now.
It ______ a library.
A. is used to be B. used to be
C. is used to doing D. used to being
参考答案：B
6.He warns Scrooge to change his ways if he doesn’t want to end up like him.
