What is the main source of energy at present?
what are some alternative sources of energy?
what are their advantages and disadvantages?
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4 tháng 7 2018
rewable:wind,solar enery,hydro,nuclear,biogas...
non rewable:coal,oil,natural gas...i think people will use it more in the future
8 tháng 1
My house primarily relies on electricity and gas for energy. Electricity powers most appliances and lighting, offering convenience but contributing to high consumption. Gas fuels the heating system, providing warmth efficiently but releasing emissions. To save energy, I've adopted simple habits: switching to LED bulbs, unplugging devices not in use, and using energy-efficient appliances. I've also improved insulation and sealed drafts to minimize heat loss. Moreover, I'm conscious of water usage, opting for efficient fixtures and practicing conservation. These steps not only save energy but also reduce environmental impact, aligning with my commitment to sustainability.
LH
2 tháng 5 2018
Vào đây hỏi nhé bạn:
@Mến Vũ,@phương linh,@Vũ Thị Phương,@Linh Diệu,@hoang khanh linh
CD
26 tháng 3 2018
1. How many types of energy sources 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 can not 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 energy and we use them instead of non-renewable sources.
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 Vietnam will use the wind and the sun as alternative sources of energy in the future.
LT
11 tháng 10 2020
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
1 tháng 5 2019
As you know, sources of energy like solar energy, wind energy,.. are very important. People use them for many things:cooking, heating,ect...But, almost the sources of energy have the disadvantages and advantages. There are two kinds of energy:non-renewable and renewable energy. Non-renewable is very popular in many countries. They are abundant, available and easy to use. However, they won't last forever and they're harmful for the environment. And, people will use renewable energy to solve the problems of non-renewable energy. Renewable sources of energy are forever and they're clean and safe, too. Nevertheless, they have some problems, too. For example, nuclear is clean but it's dangerous to use. Wind power has many advantages but it isn't available,... On the other hand, there are some sources of energy don't have some serious problems like solar energy. It's the reason why people use solar energy in the future. So, what should we do to save energy? We should use them properly and use them less. We should use less cars or motorbike, too. It also have the enviroment. Energy is very important, we should protect them for our life in the future.
VN
10 tháng 5 2018
BẠN ƠI MK CHỈ GỢI Ý THÔI NHA
DỰA VÀO ĐÓ BẠN VIẾT NHA
TOPIC 1
Tell four rules you must obey when you are a road user
=> - Always look carefully where you go
- Use the pavement or footpath
- Walk across the street at the zebra crossing
- Wait for the traffic light to turn green before you cross the street
- Wear white or light-coloured clothes in the dark
- Give a signal before you turn left or right
TOPIC 2
Tell about your favourite film
- The name of the film
=> It's Boy Hood
-What kind of film is it ?
=> It's a school life film ( phim học đường)
-What is its plot ?
=> It's about school life and basketball competition between two schools
-Who does it star ?
=> It stars TFBOYS
-What have critics said about it ?
=> Crictics say it's a must see
TOPIC 3
Tell about a festival you attended
- What's the name of festival ?
=> It's Tet
- Where was it plot ?
=> It held everywhere in Viet Nam
- When was it held ?
=> It held in late January or early February
- Why was it held ?
=> It held to welcome the new year with the hopes for better things in the year to come
- How was it held ?
=> Vietnamese people do many activities to celebrate it such as cleaning and decorating their houses,cooking traditional food, visiting relatives and friends or going to the pagodas to pray health,happiness,....
TOPIC 4
Tell about sources of energy
- How many types of energy sources ?
=> There are two types of energy sources
- What are they ?
=> They are: renewable and non-renewable
- List some sources that are renewable. What are their advantages and disadvantages ?
=> some sources that are renewable: wind,solar,hydro,biogas,....
- List some sources that are non- renewable . What are their advantages and disadvantages ?
=> some sources that are non- renewable : coal,oil,petrol,....
TOPIC 5
Think a future means of transport
- What will it look like ?
=> It will look like a big magic box
- What kind of energy will it use ?
=> It will use solar energy
- Where can people use it ?
=> People can use it everywhere
- How fast can it travel ?
=> It can travel at 1570 kph
- How many people can it transport ?
=> It can transport 21 people
MP
18 tháng 4 2019
The primary sources of energy in the environment include fuels like coal, oil, natural gas, uranium, and biomass. All primary source fuels except biomass are non- renewable. Primary sources also include renewable sources such as sunlight, wind, moving water, and geothermal energy. There are 6 more fundamental concepts.
The main source of energy at present is fossil fuel.
Some alternative sources of energy are wave energy, solar energy, biofuels, natural gas, geothermal power, wind energy, biomass energy, tidal energy, hydrogen gas, etc.
Their advantages are that they are renewable and is most likely to never run out. Also, they are easier to find than fossil fuels. They produce little or no waste that is harmful to the environment like carbon dioxide or methane so they are more environmentally friendly. Their disadvantages are that they don't produce as much energy/electricity as fossil fuels. Another disadvantage is that they rely on their surrounding. For example, wind energy needs to be generated at a windy location and needs wind turbines that take up a lot of space or solar energy needs to be generated at a sunny area and needs lots of solar panels.
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