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Hydropower is clean and cheap to use
Wind power is clean and renewable, but it’s noisy
Natural gas is cheap, but it’s non-renewable
Mortorbikes are popular and cheap, but it's pollution
Microwave ovens are convenient and save money
Our non-renewable energy sources such as coal, oil, and natural gas will (1) _______run___ out of in the future. That's the (2) ____reason______ why we are looking for alternative sources of (3) _______energy___ which are cheap, clean and effective. These (4) ____kinds______ of energy will not cause (5) _____pollution_____ or waste natural resources. (6) _____Renewable_____ power is one of them. It's currently the cheapest source of large-scale renewable energy.
Most wind energy is produced from turbines that have three 60-meter-long blades. The wind spins the blades, which turn a shaft connected to a generator that produces (7) ____electricity______. Now, mass production and technology advances are (8) ______made____ turbines cheaper. In 2000, cumulative wind capacity (9) ____of ______the world was 17,000 megawatts. Fifteen years later, this number increased sharply to 430,000 megawatts. It is predicted that with this pace of growth, (10) in 2050 one third of the world's electricity needs will be fulfilled by wind power.
2. Mr Lam is giving a lecture on energy sources. Read the text and choose the best option (A, B, or C) to complete the sentences.
(Ông Lâm đang giảng bài về các nguồn năng lượng. Đọc văn bản và chọn phương án tốt nhất (A, B hoặc C) để hoàn thành các câu.)
Hello, class. Today I'd like to tell you about two energy sources. They are non-renewable sources and renewable sources.
Non-renewable sources are coal, oil and natural gas. We can use these sources to produce energy. They are cheap and easy to use. People use them a lot. But they are very limited and will run out soon.
Renewable sources come from the sun, wind or water. When energy comes from the sun, we call it solar energy. Wind energy comes from the wind, and hydro energy comes from water. Renewable sources are available, clean and safe to use. But they are expensive to produce.
In the future we will rely more on renewable energy sources. They are better for the environment and they will not run out.
1. Non – renewable sources are cheap and _________.
A. available
B. easy to use
C. expensive
2. _________come from the sun, wind or water.
A. Renewable sources
B. All energy sources
C. Non-renewable sources
3. When energy comes from water, we call it_________.
A. wind energy
B. solar energy
C. hydro energy
4. Renewable energy sources are better for_______.
A. the environment
B. our cars
C. hydro energy
1.Coal is a cheap and easy-to-use source of energy.
2.Hydropower is a clean and cheap source of energy.
3.Wind power is a clean and renewable source of energy, but it can be noisy.
4.Natural gas is a cheap but non-renewable source of energy.
5.Motorbikes are popular because they are cheap, but they contribute to pollution.
6.Microwave ovens are convenient and can save money on electricity bills.
7.Airplanes are fast and convenient, and can save money on travel expenses.
8.Cars are convenient, but they can be expensive to buy and maintain.
9.Bicycles are a clean and cheap mode of transportation that is good for health.
Đáp án: A
Giải thích: Did you know that energy use is the biggest contributor to fine average Canadian home's carbon footprint?
Dịch: Bạn có biết rằng sử dụng năng lượng là đóng góp lớn nhất cho lượng khí thải carbon trung bình của nhà ở Canada?
XX. Read the text then circle the best answer.
Many people still believe that natural resources will never be used up.Actually,the worlds energy resources are limited.Nobody knows exactly how much fuel is left. However, we should use them economically and try to find alternative sources of power. According to Professor Marvin Burnham of the New England Institute of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative.
However, many people don't approve of using nuclear power because it is very dangerous. What would happen if there were a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations. The most effective thing is that we should use natural resources as economically as possible.
1. According to the passage, using nuclear power is...............
A. dangerous B. interesting C. safe D. cheap
2. Radioactivity from nuclear power.................
A. is harmless
B. alters a new kind of energy
C. is necessary to cure diseases
D. causes cances and may badly affect the future generations
3. How much fuel is left?
A. No one knows exactly B. Let' s use it as much as we would like
C. There is a lot of fuel D. It will never be used up
4. We should use coal, oil and gas...............
A. carelessly B. as economically as possible
C. as much as possible D. all are incorrect
Are you looking for a cheap, clean, effective source of power that doesn't cause pollution or waste natural resource? Look no further solar energy from the Sun
At present, most of our electricity comes from the use of coal and gas, oil or nuclear power. This power could be provided by the Sun. One percent of the solar energy thet reaches the Earth is enough to provide power for the total population
Many countries are already using solar energy. Solar panels are plaaced on the roofs of a house and the Sun's energy is used to heat water. The energy can be stored a number of days, so or cloudy days you can use solar energy, too
Questions
1. Is the solar energy an effective source os power?
=>Yes,it is
2.Where are the solar panels placed?
=>They are placed on the roof of a house.
3.Is the solar energy used in Vietnam now?
=>Yes,it is
