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Identify a mistake in each sentence and correct it :
1. Next week new glass will be installing in the windows to stop heat escaping .
will be installing -> will be installed
2. At this time in next two month , we are going to have a free solar panel .
are going to have -> will be having
3. They will be organized a workshop about clean and safe energy sources next Wednesday
Organized -> organizing
4. We will be replacing coal and natural gas for heating by solar energy at the end of next year .
Replacing -> replaced
5. Our house will provide with biogas and low energy light bulbs next month.
Provide -> be provided
VI . Read , answer the questions . Fossil fuels are non - renewable energy sources . They include oil , coal , and natural gas . They can be used to create energy , generate electricity , or drive big machinery . Unfortunately , they are harmful to the environment . Viet Nam still relies mostly on non renewable energy sources , however , hydro power is increasingly used here too . Hydro and nuclear power can generate a great deal of energy . They are renewable and plentiful . However , hydro power is limited because dams cannot be built in certain areas . Nuclear power can provide enough electricity for the world's needs , but it is dangerous . The sun and the wind are other alternative sources of energy . The wind turns turbines to make electricity . Solar power can be converted into electricity . It can be used to heat or cool our houses . Although there are some disadvantages , these alternative energy sources can offer abundant amounts of clean , safe electricity . They will be valued more and more in the future in Viet Nam .
1. How many types of energy sources are mentioned in the text ?
There are two
2. What are non - renewable energy sources
Fossil fuels are non - renewable energy sources
3. What is the disadvantage of hydro ?
Hydro can generate a great deal of energy .It is renewable and plentiful
4. What is the disadvantage of nuclear power ?
it is dangerous
5. Why are the wind and the sun called alternative sources of energy ?
Because the wind turns turbines to make electricity . Solar power can be converted into electricity . It can be used to heat or cool our houses
6. Will the wind and the sun be valued more and more in the future in Viet Nam
Yes, they will
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.
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.
1.How many types of energy sources are mentioned in the text? What are they?
Two. They are renewable and non-renewable.
2.What are the disadvantages of hydro and nuclear power?
Hydro power is limited because dams cannot be built in certain areas. Nuclear power is dangerous.
3.Why do you think the wind and the sun are called alternative sources of energy?
Because they are natural sources of power and we use them instead of non-renewable sources to get the electricity we need.
4.What types of energy does Viet Nam use most?
We use non-renewable sources of energy the most but we are increasingly using hydro power.
5.What does the professor think Viet Nam will use more in the future?
He thinks Viet Nam will use the wind and the sun as alternative sources of energy in the future
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