Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
One disadvantage of an overcrowded school is that there is not enough space for the students to play. Healthcare service, the library or the canteen may face problems too.
- One disadvantage of an overcrowded bus is that there aren't enough seat for people. The noise is also a problem. It's very uncomfortable to be in a crowded bus. Moreover, crime has more chance to happen.
- One disadvantage of an overcrowded block of flats is that there won't be enough space to play or space for collective activities. Moreover, noise is a problem and the air may not be fresh.
Được tôn vinh là ánh sáng mở đường cho một cuộc cách mạng năng lượng, nhưng giới khoa học mới đây đã chỉ ra chính những chiếc đèn LED lại đang đẩy mạnh tình trạng ô nhiễm ánh sáng toàn cầu, kéo theo những hậu quả nghiêm trọng đối với sức khỏe con người và động vật.
Nghiên cứu đăng tải trên tạp chí Science Advances ngày 22/11 phân tích dữ liệu vệ tinh cho thấy những buổi tối trên Trái Đất đang có xu hướng trở nên sáng hơn, với diện tích sử dụng ánh sáng nhân tạo ngoài trời tăng với tốc độ 2,2%/năm trong giai đoạn 2012-2016.
Các chuyên gia nhấn mạnh đây là một vấn đề nghiêm trọng vì ánh sáng vào ban đêm đã được xác định là làm rối loạn đồng hồ sinh học ở người và tăng nguy cơ các bệnh ung thư, tiểu đường cũng như chứng trầm cảm. Ánh sáng vào ban đêm thậm chí có thể giết chết nhiều động vật như đèn thu hút côn trùng hay làm nhiễu loạn khả năng định hướng của chim hay rùa biển.
Chris Kyba, nhà vật lý của Trung tâm Nghiên cứu Địa chất Đức và cũng là chủ nhiệm công trình nghiên cứu, cho rằng vấn đề không nằm ở công nghệ đèn LED, vốn được ưa chuộng nhờ đặc tính tiết kiệm điện.
Phát biểu họp báo về công trình nghiên cứu mới, ông Kyba cho rằng vấn đề là việc con người có xu hướng lạm dụng khi dùng quá nhiều đèn với suy nghĩ họ đang sử dụng công nghệ tiết kiệm. Các nhà khoa học gọi đây là "hiệu ứng đảo ngược."
Theo một nghiên cứu năm 2010 công bố trên tạp chí Ecological Economics, những buổi tối quá sáng không chỉ ảnh hưởng tới môi trường tự nhiên mà còn gây thiệt hại gần 7 tỷ USD hàng năm do "tác động tiêu cực đối với đời sống hoang dã, sức khỏe, ngành thiên văn và lãng phí năng lượng."
Travis Longcore, chuyên gia của Đại học Nam California, cho rằng kết luận của nghiên cứu mới "không có gì bất ngờ" đối với những người đã bỏ nhiều năm theo đuổi vấn đề này. Chuyên gia này cho rằng con số 2,2% mà nghiên cứu đưa ra là "không bền vững."
Các giải pháp được đề xuất bao gồm sử dụng các nguồn sáng cường độ thấp, tắt đèn khi không sử dụng, dùng đèn LED ánh sáng ấm thay vì ánh sáng xanh hay tím để hạn chế tác hại đối với sức khỏe con người và động vật, và quan trọng nhất là thay đổi cách suy nghĩ của người dân về việc quá dựa dẫm vào nguồn sáng nhân tạo vào ban đêm.
About the film:Tham khảo:
My favorite movie is cartoon “Tom and Jerry”. Tom is a cat with blue and white color. He keeps the house for a normal family and has a very free life. His job is chasing Jerry day by day. Jerry is a brown house mouse. He usually lives in the deep cave behind the wall. Although they hate each other so much and always find ways to hurt opponent but when Tom or Jerry falls into really dangerous situations, then both become another savior. The film is an endless confrontation between Tom and Jerry, bring plenty of laughter for the audiences. I love this film because when I watch it I feel very glad, feeling like returned to childhood.
About the festival:tham khảo
Tet is the most well-known holiday in Vietnam. It is celebrated all over the country. It mostly goes on for 3 days: 1st, 2nd and 3rd of January - Lunar Calendar.
Before Tet, people who work far away from home go back to join their family for the holiday. People clean up their houses, decorate it with Mai and Dao blossom, as well as other bonsais.
On Tet holiday, people cook feasts with various dishes to show dedication to their ancestors. A dish of 5 different kinds of fruit is also put on the altar as a tradition.
People go to relatives' and friends' places to wish them good luck, prosperity and health. Children are always excited since they will get their "salary" - lucky money in the red envelope on this occasion.
Tet is the oppoturnity for everyone to gather with their family, to rest after a long hard-working year, to refresh and prepare for a brand new year of greatness and happiness.
~Chúc bạn học tốt!~
TOPIC NÓI TIẾNG ANH
-Topic 1: Traffic.
1. How do you often go to school?
==> I often go to school by bike.
2. What are the traffic problems you can see in your city?
==>The traffic problems that I see in my city are: not wearing a helmet, driving under the age, passing through red lights, ...
3. What should people do to reduce traffic accidents?
==>To reduce traffic accidents, people should pay attention to traffic, helmets, traffic safety regulations,...
-Topic 2: Films.
1. What kind of film do you like best?
==>I like the most cartoon.
2. Please tallk about the film you would like to see( kimd of film/ stars/ the flot/ critics opinion...)
==>I want to see the movie "Moonlight Moonlight", the film is amazing! There are famous Korean actors such as Park Bo Gum, Kim Yoo Jung, Jinyoung (B1A4), ... The film is about love between the king and Sam Nương pretending to be an eunuch, a very love story. pretty.
Top 3: Festival around the festivals around the world.
1. Please tallk about the names of the festivals around the orld and in Viet Nam than you know.
==>Festivals around the world are: Christmas, Carnival Mow Festival, Holi Festival, King's Festival, Music and art festival, ...
-Festivals in Vietnam are: Tet, Hung Temple Festival, Huong Pagoda Festival, Giong Temple Festival, Lim festival, Yen Tu festival, ...
2. Which destival have you attended recently? Talk something ablout it( where it took place, How often ot celebrate/ why/ how you feel...)
==>I attended the Hung Temple festival held in Phu Tho on March 10th of the lunar calendar. Hung Temple was solemnly celebrated to commemorate Hung building and expanding the country.
- Topic 4: Souces of energy.
1. What are renewabe/ non-renewable sources of energy?
==>-Renewable energy sources include: hydro, solar, biomass, heat, biology, tides, wind.
-Renewable energy sources are fossils (petroleum, coal, rock), nuclear (uranium).
2. What are advantages of solarpower/ wind power?
Benefits of solar energy:
- convenient facilities - where there is sunlight with electricity. Our father has a wonderful saying: "run from the sun", very true, almost anywhere on earth are sunny in the day
. Endless energy. According to scientists, the existence of the sun is still several billion years, so you can rest assured that the use is not afraid of it!
- The cleanest and safest source of energy. Sunlight brings life to the earth so it is the safest course.
Free energy source. No one can control, charge for this form of energy. It gives all the creatures on earth, less space depending on geographic location.
Easy to use energy source. You are using it daily, in different ways like sun drying, sun drying, tree planting, light you see everything ...
Benefits of wind energy:
- Save on fuel, second is the ability to replace fast. Third reduce the toxic waste from the energy works into the surrounding environment.
What are disadvantages of fossil fuels?
==> The downside is that fossil fuels are a non-renewable resource because the Earth took millions of years to produce them, and the consumption is taking place faster than the speed of creation that results in exhausted fossil fuels.
3. Do you think people will use solar energy widelyin the future? Why?
==> I think people will use solar energy extensively in the future because solar energy is very useful and an endless source of energy.
1:Talk about you and your family:
Hello everyone,my name is.....I am a student in grade 7 in ........school.I live near a river with my family and have a wonderful life there.My family has 5 people:my parents,my brother ,my aunt and me.My dad is 45 and he s football very much,he has never missed any football macth before.My mum is 40 ,she has a restaurant .She is very good at cooking.My elder brother is a funny boy,he is so kind and always helps me to do the difficult exercises.If you ask me:''Who is the most hard-working in your family?'' I will tell you that is my aunt,she very s doing housework.With me,my family is the best,i love my family very much.
2:Festival in my family
My family often celebrate a lot of great festivals,but i the Mid-autum festival best.The Mid-Autumn Moon Festival is one of the two most popular festivals in Vietnam, and has been important to families in Vietnam for many years.It is held August,when the moon is brightest.This festival is celebrated for kids,they can have a wonderful time and join in so many interesting activities sing or dance.They will have a big feast with a lot of good foods.In this festival.my family often make moon cakes.It is a kind of traditional cake and so delicious.I think Mid-autum festival is very exciting.
3:Hobbies
People may have different hobbis such as listening to music, watching T.V, dancing. playing games orcollecting things. My hobby is to read books.I enjoy reading many types of books, but my favorite is detective. I reading stories about SherlockHolmes of author Conald Doyle. I often read books in the evening after I finish preparing things for thenext day’s work.When I have free time, I often go to bookstores or go to the library to look for new books.The good book can help me wide my knowlege or know about something new..Books help me relax a lot after days of hard work,too,.In my opinion,reading book is very useful and interesting.
*) Talk about ways to save energy:
As you know, our energy has limitation, so we must save energy because of the following ways. Firstly, we have to turn off the electric appliances when we do not use them. Secondly, by using bicycle or public transports instead of motorbikes or cars. Finally, we should not throw all used papers and bottles. I suggest collecting them to reuse and recycle. Therefore, if we follow the above ways, we will not only save money but also conserve the energy.
Talk about the main of transport in the future:
I believe that in 20 years the cars we drive will not be that different. I think most of the cars will move away from traditional fuel sources, but for the most part, will remain unchanged. I think the biggest problem we face isn't changing the vehicle itself, but the infrastructure that it depends on. I believe in the next century we will see a change in the road systems which will allow for greater density of vehicles, reducing the amount of space needed for roads and highways. Americans want a vehicle that can go anywhere, off road, on a race track, or down the freeway, and I believe in the future we will have multiple cars for different uses. One car for cruising around town, probably a fully electric vehicle, and another for commuting and urban driving. For those who still crave a little dirt under their tires, I think there will always be traditional Jeeps, trucks, etc. We will always have a large need for construction equipment, and I don't see those vehicles changing, other than by converting to cleaner fuels. I also believe that before 2050, self-driving cars will be coming on the market. If a 'track' system, or some system of guidance were implemented on major thoroughfares and in urban areas, a commuter could simply pull onto the freeway and switch to autopilot. This would allow cars to flow in a much more organized fashion, allowing higher speeds, safer roads, and fewer emissions caused by road congestion. The other thing I see increasing is the use of air travel. If aircraft could be made easy enough to fly by the average Joe, with a licensing system equivalent to the DMV, I believe more people would travel by air. Whatever happens, I believe or streets will be safer to drive on, and our cars will be more fun to ride in.
1.Tet is a national and family festival. It is an occasion for every Vietnamese to have a good time while thinking about the last year and the next year. At Tet, spring fairs are organized, streets and public buildings are brightly decorated and almost all shops are crowded with people shopping for Tet. At home, every is tidied, special food is cooked,offerings of food, fresh water, flowers and betel are made on the family altar with burning joss- sticks scenting the air. First-footing is made when the lucky visitor comes and children are given lucky money wrapped in a red tiny envelope. Tet is also a time for peace and love. During Tet, children often behave well and friends, relatives and neighbors give each other best wishes for the new year.
2.Environment is an essential part of our life. A clean environment is necessary for a peaceful and healthy life. An environment is the natural surroundings which helps human beings, animals and other living things to grow and develop naturally. But nowadays, our environment is disturbing in many different ways. Any type of disturbance in the nature’s balance affects the environment totally. It does not only ruin human lives but also affects on all living beings. We can save our environment with the little step taken by everyone on the earth. We should reduce the amount of waste, throwing wastes properly to its place only…and many other simple ways. It is very important to save environment for human existence. When we protect the environment, we are protecting ourselves and our future as well.
1 )
I have an unusual hobby: carving eggshells. I started this hobby four years ago after getting a carved egg from my dad when he came back from Japan. It's amazing that something as fragile as an empty eggshell can be made into such a beautiful piece of art. I was so amazed that I learned how to carve them myself from the internet. I find carving eggshells a little difficult but so interesting and useful. The feeling of accomplishment when I finish a piece is absolutely awesome. This hobby also helps me be more patient and careful.
7)
Van Mieu (The Temple of Literature) was constructed in 1070 during Ly Thanh Tong's dynasty. Its original purpose was to honor Confucius. In 1076, the first university of Vietnam called Quoc Tu Giam (The Imperial Academy), was established within this temple by Emperor Ly Nhan Tong. That's the reason why the complex has the name of Van Mieu – Quoc Tu Giam up to now. Initially, Quoc Tu Giam was the school for princes and children of royal families and then expanded in the following year to admit top students from around the country.
Nowadays, Van Mieu – Quoc Tu Giam is one of the most famous tourist destinations for both Vietnamese people and foreigners. It's also a place to celebrate doctorates and high ranking scholars of Vietnam. One special thing about this place is that there are 82 Doctors' stone tablets. They are tombstones with names and origins of 1304 doctors placed on the backs of stone tortoises. If you come here at the beginning of the year or in May, when many important examinations take place, you will catch sights of numerous families and students who come and pray for luck.
Van Mieu – Quoc Tu Giam opens daily from 8 a.m. to 5 p.m. and the entrance fee for each adult is 30,000 VND.
Below are some of the causes of population explosion. Put them in order of importance and explain why. (Dưới đây là một số trong những nguyên nhân bùng nổ dân số. Đặt chúng theo thứ tự tầm quan trọng và giải thích tại sao.)
Fewer children die at birth.
People are not aware of the problem of overpopulation.
People are not properly educated.
People believe that having many children means happiness.
Religion doesn't encourage people to have fewer children.
Many people believe that having a large family is a form of insurance.
1. Fewer children die at birth.
2. Many people believe that having a large family is a form of insurance.
3. Religion doesn't encourage people to have fewer children.
4. People believe that having many children means happiness.
5. People are not aware of the problem of overpopulation.
6. People are not properly educated.