《新概念英语自学导读第一册》是《新概念英语》系列的一套辅助教材。文章对《新概念英语》中的语法，词汇和长句难句都做了详细的剖析和阐述，从而更好的帮助同学们学习和吸收。下面就一起来学习下吧！
课文详注 Further notes on the text
1．buy on instalments，以分期付款的方式购买。
2．…and then fourteen pounds a month for three years．……然后每月14镑，3年付清。
then和fourteen之间省略了pay。
语法 Grammar in use
形容词的平级比较级：as…as
形容词的比较形式有3种：较高比较级(more expensive, the most expensive)；较低比较级(less expensive, the least expensive) ；平级比较级 (as expensive as)。
请看下面句中as…as的用法：
词汇学习 Word study
1．afford v.
（1）买得起；付得起（钱）：
（2）担负得起（时间等）：
2．deposit
（1）n．预付定金；押金；保证金：
（2）v．存放；存储：
（3）付（保证金）；预付（定金）：
练习答案 Key to written exercises
Lesson 112
A
1 This book is cheap, but that one is cheaper.
2 This book is expensive, but that one is more expensive.
3 This question is easy, but that one is easier.
4 This question is difficult, but that one is more difficult.
B
1 Is the policeman as tall as the policewoman?
No, he isn't. The policeman isn't as tall as the policewoman.
2 Is the man as short as the woman?
No, he isn't. The man isn't as short as the woman.
3 Is the boy as old as the girl?
No, he isn't. The boy isn't as old as the girl.
4 Is the red pencil as blunt as the green pencil?
No, it isn' t. The red pencil isn't as blunt as the green pencil.
5 Is the blue car as clean as the red car?
No, it isn't. The blue car isn't as clean as the red car.
6 Is the woman as fat as the man?
No, she isn't. The woman isn't as fat as the man.
C
1 No, it isn't . It is more expensive.
It's the most expensive radio I've ever seen.
2 No, he isn't. He is more intelligent.
He's the most intelligent person I've ever met.
3 No, it isn't. It is more interesting.
It's the most interesting book I've ever read.
4 No, it isn't. It is less difficult.
It's the least difficult test I've ever done.
