— Bob has gone to California.

— Oh, can you tell me when he ______?

For years, the automobile industry has been testing vehicles that use hydrogen as fuel. Now, people across the United States have had a chance to see and even drive cars that get power from hydrogen fuel cells (燃料电池).
But the hydrogen fuel cell is not a new idea. The fuel cell was first invented by Sir William Grove of Britain in 1839. Since then, many different designs, have been invented. There is one place where fuel cells are a proven technology: in space. The American space agency used fuel cells in its Apollo spaceships in the twentieth century.
The most useful fuel cell for transportation purposes is the Polymer Electrolyte Membrane, or P.E.M. fuel cell. It is simple and can operate at temperatures of sixty to eighty degrees Celsius. That is much lower than other fuel cell designs. A P.E.M. fuel cell has two sides divided by a thin membrane (膜). Hydrogen gas is forced through one side where it comes in contact with a reactive material containing the metal platinum(铂). The membrane separates the electrons(电子) from the protons(质子) in the hydrogen atoms. The protons pass through it to the other side of the fuel cell. But the electrons are captured to do work; like powering a motor. Oxygen from the air is forced into the other side of the fuel cell. There, the gas meets the protons that have passed through the membrane. They combine to form water and heat. A single fuel cell does not produce a lot of electricity. But when many fuel cells are combined, they can produce enough electricity to power a vehicle. The product of the chemical reaction that powers fuel cells is water. This makes fuel cells a very clean technology.
Hydrogen fuel cell cars have been slow to develop because of many technical problems that have to be solved. For example, it is unclear how long the membranes in P.E.M. fuel cells will last. Also, fuel cells need water for their chemical reactions. They must be designed to start easily at low temperatures and in dry climates. And smaller, less costly fuel cells must be designed before they can truly take the place of gasoline engines. Now more models of fuel cell vehicles are being tested than ever before. The threat of climate change and the high cost of oil have increased interest in these vehicles that do not cause pollution.

In just minutes a day, plug in and charge your iPhone quickly!
Just plug RichardSolo 1800 into your iPhone once or twice a day, for fifteen minutes, and keep your iPhone charged up. At your desk, or at dinner, plug RichardSolo into iPhone to instantly transfer charge. No more battery worries. RichardSolo will charge iPhone to full 1.5 times, and it is good for 3-5 years of recharges.
Use the iPhone while charging it. Even charge the RichardSolo 1800 and iPhone together at the same time. Take only one charger when traveling and wake up in the morning with the RichardSolo and the iPhone charged.
RichardSolo 1800 is largest in its class and holds its charge for months. Works with almost all iPhone cases.
Your satisfaction is guaranteed, with our 30-day return privilege. If you’re not satisfied for any reason, we’ll email you a pre-paid return label.
Actual customer comments:
To have your company exhibit such good service is unbelievably refreshing. — P.S.
This is what I call great customer support. I wish more companies would figure this out these days. Thank you so much. — D.C.
You have provided me one of the best services I have ever seen on any online/ telephone shopping. — T.K.
You must have the fastest processing and shipping in the industry!! — M.C.
This is the best customer service experience I have had in a long time. — L.L.
I’ve read online about your amazing customer service, and I must say I’m now a true believer. — B.L.
【小题1】 How long does it take the battery to charge up an iPhone?

根据下列句子及所给单词的首字母，写出各单词的正确形式（每空限填一词）。

1.As we all know, Nelson Mandela was once s_______________ to 27 years in prison.

2.On the top of the high mountain, they found the air was hard to b____________.

3.He is not a Chinese but he can speak Chinese f_____________.

4.Most scientists present at the meeting voted a_____________ the plan for it would be harmful to the air.

5.They all b__________ out laughing at the funny joke.

6.She is so generous that she gives the poor food and clothing and asks for nothing in r________.

7.After the earthquake, the whole city lay in r__________.

8.A majority of people like to play o__________ rather than stay indoors when it is fine.

9.People in all countries hope for a p_____________ world instead of one filled with wars.

10.We need more e___________ to prove that he is the thief.

RichardSolo 1800 Rechargeable Battery

In just minutes a day, plug in and charge your iPhone quickly!

Just plug RichardSolo 1800 into your iPhone once or twice a day, for fifteen minutes, and keep your iPhone charged up. At your desk, or at dinner, plug RichardSolo into iPhone to instantly transfer charge. No more battery worries. RichardSolo will charge iPhone to full 1.5 times, and it is good for 3-5 years of recharges.

Use the iPhone while charging it. Even charge the RichardSolo 1800 and iPhone together at the same time. Take only one charger when traveling and wake up in the morning with the RichardSolo and the iPhone charged.

RichardSolo 1800 is largest in its class and holds its charge for months. Works with almost all iPhone cases.

Your satisfaction is guaranteed, with our 30-day return privilege. If you’re not satisfied for any reason, we’ll email you a pre-paid return label.

Actual customer comments:

To have your company exhibit such good service is unbelievably refreshing. — P.S.

This is what I call great customer support. I wish more companies would figure this out these days. Thank you so much. — D.C.

You have provided me one of the best services I have ever seen on any online/ telephone shopping. — T.K.

You must have the fastest processing and shipping in the industry!! — M.C.

This is the best customer service experience I have had in a long time. — L.L.

I’ve read online about your amazing customer service, and I must say I’m now a true believer. — B.L.

1.How long does it take the battery to charge up an iPhone?                   

2.What is special about the battery?                                      

3.Who mentions the transporting of the battery?                            

A. P.S.            B. B.L.           C. M.C.     D. T.K.     

4.The customer comments on the battery are mainly about its _______.         

5.C【解析】] 推理判断题。从顾客评论的第四条中“You must have the fastest processing and shipping in the industry！！”可得出