My tooth hurts

Kêu viết lại là sao hả ông kia???

1. Hydroelectricity is a renewable energy source.

Hydroelectricity uses the energy of running water, without reducing its quantity, to produce electricity. Therefore, all hydroelectric developments, of small or large size, whether run of the river or of accumulated storage, fit the concept of renewable energy.

2. Hydroelectricity makes it feasible to utilize other renewable sources.

Hydroelectric power plants with accumulation reservoirs offer incomparable operational flexibility, since they can immediately respond to fluctuations in the demand for electricity. The flexibility and storage capacity of hydroelectric power plants make them more efficient and economical in supporting the use of intermittent sources of renewable energy, such as solar energy or Aeolian energy.

3. Hydroelectricity promotes guaranteed energy and price stability.

River water is a domes resource which, contrary to fuel or natural gas, is not subject to market fluctuations. In addition to this, it is the only large renewable source of electricity and its cost-benefit ratio, efficiency, flexibility and reliability assist in optimizing the use of thermal power plants.

4. Hydroelectricity contributes to the storage of drinking water.

Hydroelectric power plant reservoirs collect rainwater, which can then be used for consumption or for irrigation. In storing water, they protect the water tables against depletion and reduce our vulnerability to floods and droughts.

5. Hydroelectricity increases the stability and reliability of electricity systems.

The operation of electricity systems depends on rapid and flexible generation sources to meet peak demands, maintain the system voltage levels, and quickly re-establish supply after a blackout. Energy generated by hydroelectric installations can be injected into the electricity system faster than that of any other energy source. The capacity of hydroelectric systems to reach maximum production from zero in a rapid and foreseeable manner makes them exceptionally appropriate for addressing alterations in the consumption and providing ancillary services to the electricity system, thus maintaining the balance between the electricity supply and demand.

6. Hydroelectricity helps fight climate changes.

The hydroelectric life cycle produces very small amounts of greenhouse gases (GHG). In emitting less GHG than power plants driven by gas, coal or oil, hydroelectricity can help retard global warming. Although only 33% of the available hydroelectric potential has been developed, today hydroelectricity prevents the emission of GHG corresponding to the burning of 4.4 million barrels of petroleum per day worldwide.

7. Hydroelectricity improves the air we breathe.

Hydroelectric power plants don't release pollutants into the air. They very frequently substitute the generation from fossil fuels, thus reducing acid rain and smog. In addition to this, hydroelectric developments don't generate toxic by-products.

8. Hydroelectricity offers a significant contribution to development.

Hydroelectric installations bring electricity, highways, industry and commerce to communities, thus developing the economy, expanding access to health and education, and improving the quality of life. Hydroelectricity is a technology that has been known and proven for more than a century. Its impacts are well understood and manageable through measures for mitigating and compensating the damages. It offers a vast potential and is available where development is most necessary.

9. Hydroelectricity means clean and cheap energy for today and for tomorrow.

With an average lifetime of 50 to 100 years, hydroelectric developments are long-term investments that can benefit various generations. They can be easily upgraded to incorporate more recent technologies and have very low operating and maintenance costs.

10. Hydroelectricity is a fundamental instrument for sustainable development.

Hydroelectric enterprises that are developed and operated in a manner that is economically viable, environmentally sensible and socially responsible represent the best concept of sustainable development. That means, "development that today addresses people's needs without compromising the capacity of future generations for addressing their own needs" (World Commission on the Environment and Development, 1987).

The best way to start saving on your electricity costs is to get smart with how you use electricity. Make these 21 no-cost changes in your home and you could save $500 or more a year, depending on a number of factors including the size of your home.

Now's the time to also join Team Power Smart and start a Reduction Challenge. If you can deliver on most of the 21 changes below, you could reduce your electricity use by 10% over the year and earn a $50 reward.

CHOOSE THE BEST ANSWER TO THE BLANK:

1.The wind, the sun, and the wave and some types of ____________sources of energy.

A changeable B alternative C cheap D costly

2.Remember to___________the lights before going to bed.

A turn B turn on C turn off D stop

3.The pens are all_________

A. her B hers C she D he 

4.I have never felt at_________as I did when I watched that horror film.

A terrify B terrified C terrifying D terrible 

5.I enjoyed the film on TV yesterday evening_________nobody in my family d it.

A. although B yet C in spite of D so 

6.We  films very much. The_______are unforgettable and the plot is gripping.

A characters B acting C style D action

Chào em, em tham khảo nhé!

1.The wind, the sun, and the wave and some types of ____________sources of energy.

A changeable B alternative C cheap D costly

2.Remember to___________the lights before going to bed.

A turn B turn on C turn off D stop

3.The pens are all_________

A. her B hers C she D he 

4.I have never felt at_________as I did when I watched that horror film.

A terrify B terrifed C terrifying D terrible 

5.I enjoyed the film on TV yesterday evening_________nobody in my family d it.

A althought B yet C in spite of D so 

6.We  the films very much. The_______are unforgettable and the plot is gripping.

A characters B acting C style D action

Chúc em học tốt và có những trải nghiệm tuyệt vời tại olm.vn!

Đáp án B . supersonic

CHOOSE THE WORD MARKED  A,B,C OR D WITH A DIFFERENT STRESS PATTERN FROM THE OTHERS

1.A excellent  B.generous C.plentiful  D.polluting

2.A abundant B.wonderful C. convenient D. important

3.A. enjoy B. agree C. attend D atudent

1. B

2. D

3. A

4. D

5. C

6. D

7. B

8. A

9. B

10. C

II. Choose the best answer. (2.0 pts) 1. Minh used to ____________his homework late in the evening. A. does B. DO C. doing D. did 2. So many people nowadays are ……. computers and smart phones. A. bored with B. afraid of C. worried about D. ADDITED TO 3. There are many _____________on the street: cars, buses, bikes, motorbikes… A. VEHICLES B. transport C. engines D. machines 4. She spent all day _____________with her children. A. play B. to play C. played D. PLAYING 5. The central square is______________. It is full of people and noise. A. quiet B. peaceful C. CROWDED D. calm 6. .Lang Lieu couldn’t buy any special food ………… he was very poor. A. although B. even though C. while D. BECAUSE 7. If we walk, we should go on the___________. A. street B. PAVEMENT C. traffic light D. road 8. “One-way street”, “No parking” are___________. A. ROAD SIGNS B. means of transport C. traffic rules D. mistakes 9. He sings___________. Nobody wants to listen to his voice. A. bad B. BADLY C. well D. good 10. She couldn’t go far because she was afraid of …….. A. to fly B. fly C. FLYING D. be flying ~ Học tốt ~

10. I take part in most youth activities of my school.

A. attend          B. paripate in             C. hold          D. A&B

D. A & B nha!!

Chào em, em tham khảo nhé!

1. Your friends will be there at the party, won't they?

2. It isn’t too cold today, is it?

3. Jack was ill yesterday, wasn't he?

4. We didn’t go to the dance club last night, did we?

5. Your sister works in advertising, doesn't she?

6. I am late, aren't I?

7. Let’s go to Lan’s house, shall we?

8. She won’t come here, will she?

9. Nothing is good, is it?

10. Her daughter has studied English for two years, hasn't she?

Chúc em học tốt và có những trải nghiệm tuyệt vời tại olm.vn!

2. Complete the following tag questions.

1. Your friends will be there at the party, ______won't they_________?

2. It isn’t too cold today, _____is it__________?

3. Jack was ill yesterday, ____wasn't he___________?

4. We didn’t go to the dance club last night, ______did we_________?

5. Your sister works in advertising, _________doesn't she______?

6. Iam late, ______amnot I_________?

7. Let’s go to Lan’s house, ______shall we_________?

8. She won’t come here, _____will she__________?

9. Nothing is good, _____isn't it__________?

10. Her daughter has studied English for two years, _______hasn't she________?

lỗi sai:In most

sửa lại:Most of

most \(\Rightarrow\)the most of

VlII. Rewrite the sentences so that it stays the same meaning.(1,5pts)

 1. What is the distance between Ha Noi and Da Nang? 

=> How far ………is it from Ha Noi to Da Nang…............................?

2. They often cycled to school two years ago.            

 =>They used ……to cycle to school two years ago………...................................

3. Lien has a lot of homework to do. She watches films on TV until 10 p.m every day

=> In spite of.......having a lot of homework to do, she watches films on TV until 10 p.m every day..................................................

4. He started living here fifteen years ago.

=> He has .............lived here for fifteen years .......................................      

5.They find reading English book interesting.

=> They are…………interested in reading English books.…………………………

6.The garden party won’t take place if the weather doesn’t improve.

=> ..................Unless the weather improves, the garden party won't take place ......................................................................