Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
In my free time, I read book. Sometimes, I play tennis and play volleyball. I usually talk with my friends, exchange articles with my friends. In free time, I also enjoy read books but I do not have much time.
Electric Cars
Hybrids vehicles, with their combination of both gas and battery power, represent 3% of the cars on the road today, up from zero just ten years ago. Fully electric cars like the Nissan Leaf and Tesla are mere curiosities, representing only 0.1% of all cars purchased in the U.S.
It might seem like a slow start, but electric cars will soon form the majority of all vehicles. Here’s why:
Except for early adopters of technology and diehard environmental customers, most people aren’t buying a fuel type, they’re buying transportation. They may want speed or economical transportation or family-friendly minivans, but how the vehicle is powered isn’t their main concern.
Examples like the Tesla have shown that electric vehicles perform on par with gas-powered cars. What limits their adoption then? Two factors: cost and range (and charging infrastructure, to a lesser extent, but that will be remedied when there is more demand).
The Nissan Leaf battery pack alone costs about $18,000 (though government incentives bring down the overall vehicle cost to the customer). When comparable gas-powered cars are about $20,000, the high cost of the battery pack alone is a huge barrier to widespread adoption, whether the cost passed on to the customer or the government, or hidden by the manufacturer.
Ramez Naam, author of The Infinite Resource: The Power of Ideas on a Finite Planet, recently explained that lithium-ion batteries have a fifteen year history of exponential price reduction. Between 1991 and 2005, the capacity that could be bought with $100 went up by a factor of 11. The trend continues through to the present day.
This exponential reduction in battery cost and improvement in battery technology, more than anything else, will affect both the cost and range of electric cars. By 2025, that Nissan Leaf battery pack will cost less than $1,800, making the cost of the electric motor plus battery pack less than the price of a comparable gasoline motor. Assuming even modest increases in storage capacity, the electric vehicle will rank better on initial cost, range, performance, and ongoing maintenance and fuel costs.
With both lower cost and better performance, electric vehicles will likely overtake gasoline-powered ones by about 2025.
Sắp xếp những câu sau đây cho đúng:
1)It was /of you /to carry the bag /for me./very nine/
it was very nice of you to carry the bag for me
2)put the /of water./fish into /a bucket/The children/
the children put the fish into a bucket of water
3)where she /Can you/the country/tell me /was born?/
can you tell me the country where she was born?
4)in her /new clothes /Colin was/this morning ./very cheerful/
colin was very cheerful in her new clothes this morning
5)to our/Several toxic/health./gases are/very harmful/
several toxic gases are very harmful to our health
Sắp xếp những câu sau đây cho đúng:
1)It was /of you /to carry the bag /for me./very nine/
-> It was very nice to carry the bag of you for me.
2)put the /of water./fish into /a bucket/The children/
-> The children put the fish into a bucket of water.
3)where she /Can you/the country/tell me /was born?/
-> Can you tell me the country where she was born ?
4)in her /new clothes /Colin was/this morning ./very cheerful/
-> Colin was very cheerful in her new clothes this morning.
5)to our/Several toxic/health./gases are/very harmful/
-> Several toxic gases are very harmful to our health
Chúc học tốt!
chuyễn nghĩa không đổi
we learn how to play chess an hour a day = it takes us an hour a day to play chess
what about going to the movie theater ? + why don't you go to the movie theater?
Lan has more books than her brother = Lan 's brother has fewer books than Lan
my sister drinks more milk than i = i drink less milk than my sister
let's play volleyball = what about playing volleyball?
how about going to the movies tonight ? = would you like to go to the movie tonight?
the black car is cheaper than the red car = the red car is more expensive than the black car
1. It takes us an hour a day learning how to play chess.
2. Why don't you go to the movie theatre?
3. Lan's brother has less book than she.
4. I drink less milk than my sister.
5. What about playing volleyball?
6. Would you like to go to the movies tonight?
7. The red car is more expensive than the black car.
1.This street is the same wide -> width as ours
2.She didn't talk to me for a long time -> hasn't talked
3.Every one in the neighborhood is pleasing -> pleased about the new market
4.Surface mail is many -> much cheaper than airmail
5.Did you read short stories by Nam Cao? -> Have you ever
* Tiếng Anh
Traffic safety and traffic that the world now needs to pay attention. it is not only the most important factors crucial to the development and survival of a nation, a territory but a junction of trade between regions of countries, cultures on world together. In advanced countries, the situation and development of their traffic is quite developed with a dense transport network and is regulated, but in Vietnam, … Urban transport situation in Vietnam is extremely chaotic. On average there are thousands of cases every year in traffic accidents, causing serious loss of life and property. Despite being upgraded and renovated several times but the transport system of Vietnam has not improved as much. Traffic jams occur repeatedly in large cities damaging hundreds of billion per year, not only that the injuries related to traffic accidents is also increasing, especially head injuries , spine. Circulation of vehicles on roads, railways, waterways each year but with increasing road infrastructure can present data to help the traffic situation.
* Tiếng Việt
There are so many vehicles on the streets and alleys, from buses, cars, to motorbikes, bicycles. The city has the most motorbikes in this country.
Moreover, the streets are very narrow and bad. They are easily flooded when it rains so heavily. The streets and alleys become bumpy after the rain.
Many traffic users don’t obey the traffic rules. They usually drive and ride very dangerously.
As a result, there are traffic accidents every dav in this city.
Tell me the disavantages of riding by bike
Because of the weight of this genuine giant mountain bike is relatively heavy, the bread should be when running on the road will have slow speed and power to the user. Users often have to add mud fenders to the front and rear wheels. Unlike other beautiful bikes, the terrain bike is divided into different types depending on the type of terrain. Basically it has two types: full-suspension (full front and rear suspension, smooth but heavy) and hard-tail (only with a shock absorber at the head of the car, unsuitable for crossing terrain with high ruggedness)
ns Trần Hữu Tuyển bày cho chi lậy. chi mà phải hỏi cđ mồ
Video games are a part of today’s modern world. If you look around you, everyone is playing a video game. The father and son having a coffee and a milkshake are too busy playing video games to communicate. The teenager who is struggling in school, instead of considering her studies, is playing a video game because she is addicted to it. What is a video game? This electronic game involves human interaction with a user interface to provide visual feedback on a video device. Are they good for you? Well, maybe there are advantages. But, the disadvantages greatly outnumber the advantages.
Firstly, let’s consider the health repercussions of video games. Sitting in one place, moving your fingers or thumbs around, cannot be good for health. According to research, playing video games increases the risk of various diseases including heart diseases, arthritis, diabetes and many more. In addition, usually when sitting in one place, one tends to munch on snacks, and these are not the healthy ones! Too many calories with too little exercise results in obesity. Obesity can increase your risk of heart attacks and diabetes, high blood pressure etc. So, a healthy life is out of the window and this is the main disadvantage of playing video games.
Secondly, video games are addictive. All you care about is forging ahead to the next level. You sit and play for many hours and forget about everything else. All you care about is overcoming your obstacles in order to get to the next level. So, the moment you come home, you switch on your game and sit and play because you really cannot think of anything else. Your friends call you to go out, your term paper is due in a few weeks and all you that is on your mind is your video game. You are falling behind in your academic studies and you don’t care. This form of addiction is another disadvantage of video games.
Computer vision syndrome is a condition many computer users get by staring at a computer screen the whole day. This is not a specific problem; rather it is a range of eyestrain and pain associated with frequent computer use. This is similar to carpal tunnel syndrome. Continued focus on one thing can strain the eye muscles. It is very different to the focus you give when reading because a computer screen has a glare in the background, the screen flickers from time to time etc. Most often, constant use of computers or video games can cause blurred vision, double vision, headaches and eye irritation all related to computer vision syndrome.
Video games can have many disadvantages for children. For example, according to research, violent games produce aggressive children. Playing video games that have a lot of shooting and killing in them increases children’s anger and brings out aggressive behaviour.
So, does this mean playing video games has to stop? No. It simply means that we must know when to stop and say “that’s it! I’m done for today”. We must be able to get up and walk away, have a good social life and lead a healthy life. These are far more crucial than a game.
đây là nick của Tr Lam phải ko