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Special devices have already been made avaible to put on the roofs of houses and flats to (1) catch the sun's rays and the thus heat water. Thousands (2) of these devices are now being used to provide (3) energy in homes throughout the United States while more (4) than a million solar water-heating units have already been (5) built in home in Japan. Other purposes for which (6) solar energy is at present being used include the separation of salt from seawater, irrigation and sewage disposal (7) for most people in developing countries, the need is not for air-conditioners or central heating but for cheap (8) ways of cooking food, drying crops and lighting homes
Energy is one of the problem that many people are interested in. It is not an unfamiliar word. It is heard, said, discussed day after day. It is close to everyone's daily life. You turn on the lamp and it is energy that gives you light. You turn on a TV and it is energy that gives you pictures and sound. You ride a motocycle and it is energy that gives you movement. You cook your meals and it is energy that gives you heat to boil rice.
The problem is that the demand for energy is rising and that the price of energy is getting higher and higher. The supply of energy on earth is limited. It cannot provide us all forever. The shortage of energy in the future is inevitable. Therefor, saving energy is a must if we want to contine to live in a cafe and sound world.
2 What is the problem that the demand for energy?
It is rising
1 How is the price of energy nowaday?
It is getting higher and higher
3 Can we watch TV without Energy?
No, we can't
4 What Should you do to save energy at home?
- I turn off the lights when going out
- Taking shower instead of bath
- Using less private transport
#Yumi
Tidal energy is renewable plentiful and clean -Wind will be used as an environmental friendly sources of energy . -There are many ways will be used to solve the problem of pollution
Chỉ biết từng đó hoi à! Thông cảm nha!
1. What is the source of solar energy?
A. sunlight B. photovoltaic cells C. solar panels D. electricity
2. Solar cells are used ______________.
A. to collect energy from the sun B. to provide sunlight to houses
C. to convert sunlight into electricity D. both A and C are correct
3. Which of the following statements is true?
A. Solar cells absorb all of the light energy from the sun.
B. The light energy causes the particles to move faster to make electricity.
C. Solar energy can be used to power homes and businesses only.
D. Large solar panels have been placed on cars and appliances.
4. Where have people fixed solar panels?
A. On the roofs of their houses B. Anywhere outside their houses
C. Inside their houses D. In the sunniest places