If you're tired of spending money like water on gas,maybe you'd just rather spend money on water.
That's what you'll be doing if a Japanese company has its way.
       A company called Genepax has invented the first practical car to run only on water. The company
says putting just a litre(升) of water is enough to keep its car going for 60 minutes at a speed of 80
kilometers an hour. And forget about finding a gas station when you're running on empty. "The car will
continue to run as long as you have a bottle of water to fill from time to time," Genepax CEO Kiyoshi
Hirasawa said.          
       According to the company, the water gets poured into a tank(籍) at the back of the car and uses a
generator(发电机) to break it down and tum it into electrical (电的) power.
       Genepax can't say yet when you'll be taking one of their cars for aride,but they hope it will one day
water down your need to ever visita gas station again.

根据短文内容，选择正确答案。

1. Where is the company Genepax from?

A. China.      
B. Japan.
C. America.    
D. Canada.

2. Which of the following is true according to the passage?

A. There was no such a car that runs only on water before.
B. There is a tank filling with water in the front of the car.
C. Genepax had told the public when its cars could be produced.
D. Genepax's cars must be very expensive.

3. How far could Genepax's car go if putting two litres of watef in it?

A. 60 kilometers.
B. 80 kilometers.
C. 120 kilometers.
D. 160 kilometers.

4. What does the underlined phrase" water down" mean?

A. 掺水
B. 激发
C. 降低
D. 满足