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Read the following passage and choose the correct answer to each of the questions: Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers.

Sunlight is solar energy. Sunlight is needed for growing plants that you eat to get energy. Sunlight is also used to make clean electricity. Burning fossil fuels to make electricity pollutes our atmosphere and rivers. Fossil fuels are expensive and limited sources of energy. Nuclear fission is used to create enormous amount of heat and electricity. However, nuclear fission forms dangerous radioactive waste. 

Sunlight offers many ways to get energy. A window can allow warm sunlight into your room. Solar water-heating systems can use sunlight to warm the water for your home, swimming pool and school. Sunlight also warms the Earth and causes wind. Electricity can be made by wind generators. 

Photovoltaic, or PV system use a type of material that converts sunlight into electricity. PV systems can power your air conditioner or a satellite like the International Space Station PV systems are also used to run a calculator, recharge cell phone, or even power lightweight cars.

Sunlight is also changed into electricity by concentrating solar power or CSP systems. CSP systems have mirrors that focus the sunlight. The concentrated sunlight turns water into steam which turns a turbine that is connected to an electric generator. A CSP system usually uses sunlight to make steam. CSP power plants can store large amount of heat. The stored heat is used to make electricity at night. During cloud days, many CSP plants can also bum natural gas to provide the heat that is used to turn water into steam.

Sunlight provides the energy needed to grow plants and make large amount of environmentally friendly heat and electricity. Solar energy can provide power today and for a long time in the future.

1. This article is mainly about ____.

A. Human using sunlight to stay warm

B. The need to develop new technology for solar power system

C. How the energy of sunlight is used 

D. How solar energy can provide power for transportation systems

2. In the first paragraph, the word "fossil fuels" in line 2 means ____.

A. fuels formed millions of years from the remains of animals and plants

B. nuclear energy

C. solar power 

D. fuel formed from the energy of the wind

3. The drawback of nuclear fission is that ____.

A. it sends out energy in the form of rays that can be harmful

B. it is costly 

C. it releases smoke

D. it is time-consuming to be formed

4. To help the readers understand some of the benefits of solar energy, the author ____.

A. provides a list of solar energy projects

B. lists in chronological order the invention of various systems that gather energy of sunlight

C. describes in detail how a PV system works

D. briefly compares and contrasts the differences in using fossil fuels nuclear fission and solar energy in electric power systems

5. Which of the following statements is NOT true? 

A. Fossil fuel supplies are unlimited.

B. Solar energy is the energy that comes from the sun.

C. PV systems provide electricity for the International Space Station. 

D. A CSP power plant can produce steam even at night.

6. In the third paragraph, the word "convert" is closest in meaning to ____.

A. change form one religion to another                                  B. transform

C. exchange for something equal in value                             D. converse

7. In the fourth paragraph, the word "which" refers to ____.

A. water                      B. steam                      C. sunlight                   D. solar power 

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Trả lời (1)

  • 1C; 2A; 3A; 4D; 5A; 6B; 7B

      bởi Lê Minh 06/05/2021
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