英语简单学第56课The most expensive mode

MR.FRITH：I like this television very much. How much does it cost?
ASSISTANT：It's the most expensive model in the shop. It costs five hundred pounds.
MRS. FRITH：That's too expensive for us. We can't afford all that money.

ASSISTANT：This model's less expensive than that one. It's only three hundred pounds. But, of course, it's not as good as the expensive one.
MR. FRITH: I don't like the model. The other model's more expensive, but it's worth the money.
MR. FRITH: Can we buy it on instalments?
ASSISTANT：Of course. You can pay a deposit of thirty pounds, and then fourteen pounds a month for three years.
MR. FRITH：Do you like it, dear?
MRS. FRITH：I certainly do, but I don't like the price. You always want the best, but we can't afford it. Sometimes you think you're a millionaire!
MR.FRITH：Millionaires don't buy things on instalments!

1. model 课文中，是模型的意思。如飞机模型（model areoplane)，轮船模型（model ship)。那汽车模型应该怎么说呢？此外，model 除了模型的意思外，还可以表示模特。如走T台的模特 fashion model，平面模特 still model。那车模又应该怎么说？
2. millionaire 百万富翁 millionaire是个合成词，有million（百万）+aire 组成。那亿万富翁怎么说呢？现在我们复习一下计数单位，在英语里，每三位数为一个计数单位。我们从小到大复习一遍，thousand (千），million(百万）， billion（十亿），trillion （万亿）。给大家一个英语表达数字的小技巧：表达数字前，拿起笔，从个位数向高位数字作记号，每三位数字为一个单位。如 123，456，789，123 （one hundred twenty three billion,four hundred fifty-six million, seven hundred eighty-nine thousand,one hundred twenty- three.)
3. A be as+adj+as B A跟B一样……
   这是一个比较中的等价句型：A跟B一样……例句：她跟我一样重。She is as heavy as me. 那我跟她一样重，应该怎么说？
   如果想表达A不如B时，我们只需要在这个结构中的be动词后面加上not。如她不如我重。She is not as heavy as me.
   那要是“我没有她重”。又应该怎么说？
4. buy on instalments，以分期付款的方式购买。
   I have bought this house on instalments.
   我用分期付款的方式买了这所房子。
5. …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
6. 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：
   The green apple is as sweet as the red one.
   这个绿苹果同那个红苹果一样甜。
   The policeman is as tall as the policewoman.
   这个男警察与那个女警察个子一样高。
   The white knife is as sharp as the black one.
   这把白色的小刀与那把黑色的小刀一样锋利。
   I don't know as many people as you do.
   我认识的人没有你认识的多。
   Robert is not as old as he looks.
   罗伯特没有他看上去那么高。
   The blue car is not as clean as the red car.
   蓝车没有红车干净。