The Chinese girl Zheng Daizi is a famous ________ in England. The Nokia company asked her to design a phone that is not ________ for the environment. As a result of her research, she found that normal phone batteries (电池) are expensive and bad for the environment. It also uses many good resources to ________ a normal battery. So she wanted to design a battery that is ________. Then a Nokia cellphone that drinks ________ was born.

The cellphone had a bio-battery. It gets power from sugar. So users only need to put a glass of cola into it, and then watch the cola turn into ________. Once the battery dies, only oxygen and water are ________. Bio-battery can ________ three to four times ________ than the usual batteries.

In fact, Zheng said that ________ cola, but also soda with sugar can be good resources to power the cellphone.

A man made a nice talking machine. It could weigh(称重) people’s weight. The man wanted to try the machine before he could make a lot of machines.

He put the machine into the waiting room of a station. There were always lots of people in and out.

The first one who used the machine was an Indian woman. She stood on the machine. The machine thought for a few seconds to decide which language to speak. “Good morning, Madam,” it said in Indian. “Your weight is 72 kilograms. That’s three kilograms more. If you eat more fruit and vegetables, you will be soon all right. Please have a nice day.”

The second one to use the machine was a Chinese girl. She stood on the machine and waited to hear her weight. “Good morning, Miss,” the machine said in Chinese. “Your weight is 45 kilograms. It’s all right for your age. Keep eating what you eat every day. Please have a nice day.”

The third one to use the machine was a very fat American woman. She thought for a long time to stand on the machine. The machine spoke quickly in English, “Good morning. Will one of you get off?”

Taking away a city’s rubbish is a big job. Every day trucks come into a city to collect it. Most rubbish is made up of things we can’t eat or use. If we kept these things, we would soon have a mountain of rubbish.

In some cities, the rubbish is collected and taken outside of the city to a dump(垃圾场). Often the city dump is placed where the ground is low or there is a big hole. The kitchen rubbish is broken into small pieces and sent into the sewage system. The sewage system takes away the used water from toilets, bathtubs(浴缸) and other places.

To keep mice and flies away, some earth is used to cover the newly dumped rubbish. Later, grass may be planted on the rubbish-filled land. Finally, a house or a school may be built there, and then you’d never know that this had once been an old rubbish dump.

In other cities the rubbish is burnt in special places. The fire burns everything but the metal. Sometimes the metal can be used again in factories where things are made of metal. The food parts of rubbish are put in special piles where they slowly change into something called humus(腐殖质), which looks like black earth. It is rich with some kinds of things that feed plants and help them grow.

It is 40 metres long and 6 metres wide. This must be the biggest bus you have ever seen. It can carry 1,200 to 1,400 people. It is China’s new Super Bus. It is going for a test run in Beijing at the end of this year.     26     They hope it can solve traffic problems.

The Super Bus runs along fixed tracks (固定轨道).     27     The legs have wheels at one end. Small cars can drive under the bus, so the Super Bus does not take up much road space.

The bus runs on electricity and sun energy. It can travel up to 60 kilometres per hour. Its creator, Song Youzhou, says it can reduce a lot of traffic jams (堵塞).     28     In that way, it can save 860 tons of fuel every year, according to Song.

“    29     Subways are nearly ten times more expensive to build,” Song said.

Some people worry that the Super Bus may not be safe.     30     The Super Bus has laser scanners (激光扫描仪) between its legs. The scanners make sure the cars keep a safe distance.

46. 汽车作为人类的伟大发明之一，给人们的生活带来了很大的便利。 随着经济的快速发展，越来越多的人买得起汽车了。然而，越来越多的私家车给人们的生活带来了怎样的影响呢？请以“私家车的利与弊”为主题，写一篇作文。

With the development of economy, more and more people can afford to buy cars.