[填空题]We might use more of our native memory power if we learnt how to use it at school,

[填空题]We might use more of our native memory power if we learnt how to use it at school,

[单项选择] When we worry about who might be spying on our private lives, we usually think about the Federal agents. But the private sector outdoes the government every time. It’’s Linda Tripp, not the FBI, who is facing charges under Maryland’’s laws against secret telephone taping. It’’s our banks not the Internal Revenue Service (IRS), that pass our private financial data to telemarketing firms. Consumer activists are pressing Congress for better privacy laws without much result so far. The legislators lean toward letting business people track our financial habits virtually at will. As an example of what’’s going on, consider U.S. Bancorp, which was recently sued for deceptive practices by the state of Minnesota. According to the lawsuit, the bank supplied a telemarketer called Member Works with sensitive customer data such as names, phone numbers, bank-account and credit card numbers, Social Security numbers, account balances and credit limits. With these customer lists in h
A. is mainly carried out by means of secret taping
B. has been intensified with the help of the IRS
C. is practiced exclusively by the FBI
D. is more prevalent in business circles

[单项选择]We must try to use our intellect （）
A. to the greatest advantage
B. for the most details
C. by the rarest chance
D. of the greatest significance

[单项选择]We can use our eyes and facial expressions to communicate virtually every （）nuance of emotion.
A. intrinsic
B. eternal
C. subtle
D. inherent

[填空题]A
Hydro power
Introduction
We have used running water as an energy source for thousands of years, mainly to grind com.
The first house in the world to be lit by hydroelectricity was Cragside House, in Northumberland, England, in 1878. In 1882 on the Fox River, in the USA, hydroelectricity produced enough power to light two paper mills and a house.
Nowadays there are many hydro-electric power stations, providing around 20% of the world’s electricity. The name comes from“hydro”, the Greek word for water.
How it works
A dam is built to trap water, usually in a valley where there is an existing lake.
Water is allowed to flow through tunnels in the dam, to turn turbines and thus drive generators.
Advantages
Once the dam is built, the energy is virtually free.
No waste or pollution produced.
Much more reliable than wind, so