ĐOẠN VĂN ĐÂU ông nội ? Ko có sao mà trả lời ?

cái này phải có bài đọc chứ :)

It is eight fifteen = It is quarter past eight

It is eight thirty = It is half past eight

Là điện thoại nha !

điện thoại

Tôi và bố mẹ sẽ có một kỳ nghỉ ở Vịnh Hạ Long vào thứ Bảy tới. Chúng tôi sẽ ở trong một khách sạn đẹp bên biển. Vào buổi sáng, chúng tôi sẽ tắm biển. Vào buổi chiều, chúng tôi sẽ đi du thuyền quanh vịnh. Tối mình đi ăn hải sản ngon ở Tuần Châu. Chúng tôi sẽ có rất nhiều niềm vui ở đó.

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.

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 ~

a. There are four seasons in my country.

b. It's is the night season and the weather is often cool

c. In the summer, the days are long and the night are short.

d.In the winter, It's usually very cold, so we always wear warm clothes in the winter.

Chúc bạn học tốt !

Trả lời giúp mình vs

Cảm ơn nhiều

1/ supply the corect form of verbs

a. what do you......do.......(do) this summer vacation?

b. she.............has.........(have) breakfast at 6.30 every morning

c. Does your father...go.........(go) to work by bike every day?

d. where is Nam?- he.......is watching.......(watch) TV in his room.

e. let's ........go.........(go) out to play soccer with them.

f. Nam usually (go)......goes.....to school  bt bike.

g. where.........do..you(live)....live.......?I live in a city

h. he(read).....is reading......a book now.

k. Ba wants(speak).........to speak.........English to me

l. what about(watch).....watching........TV?

n.when is cold, he (play) plays soccer

m. how often does Lan (walk)........walk.....to school?

v. .......Does......Ba(ride)........ride.............his bike every morning?

x.Mr.Ha (sit)..........is sitting.........in his room now.

Trả lời giúp mình! thanks

1/ write the second sentence so that it has a simlar to the first.

a. my hair is short and curly

-> I have short and curly hair

b. shall we stay at home and play computer game tonight?

-> Let's stay at home and play computer game tonight!

c.let's go to Ha Long Bay next summer vacation.

--> what about.going to Ha Long Bay next summer vacation?

d.london is smaller then Tokyo.

.-->Tokyo is bigger than London

e. where does she cỏm from?

-> where is she from?

f. what about taking some photos?

--> why don't we take some photos?

g.what about going to Dam Sen park?

->Let's go to Dam Sen Park!

h.she plays badminton twice a week.

-> how often does she play badminton ?

Trả lời nhanh giúp mình nhé! 

Cảm ơn ất nhiều

Bài khá dễ nên bạn có thể tự làm được :

- Prophet can predict the future

- He could swim

-  Hanz will be able to become a famous rapper

Bài này khó quá nên có gì sai mong mn bỏ qua cho em ạ!!!

ex 3: write sentences using can, could, will be able to + a suitable verb.

Vu could play the trumpet after four months

When I was five, I couldn't swim

Alex can't do his homework when his desk is in such a mess

I don't know why can focus at office

Maybe Linh will be able to buy a new car next year

If you try all your best, you won't be able to pass your test