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8 tháng 6 2018

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.

TOPIC NÓI TIẾNG ANH -Topic 1: Traffic. 1. How do you often go to school? 2. What are the traffic problems you can see in your city? 3. What should people do to reduce traffic accidents? -Topic 2: Films. 1. What kind of film do you like best? 2. Please tallk about the film you would like to see( kimd of film/ stars/ the flot/ critics opinion...) 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...
Đọc tiếp

TOPIC NÓI TIẾNG ANH
-Topic 1: Traffic.

1. How do you often go to school?
2. What are the traffic problems you can see in your city?
3. What should people do to reduce traffic accidents?
-Topic 2: Films.
1. What kind of film do you like best?
2. Please tallk about the film you would like to see( kimd of film/ stars/ the flot/ critics opinion...)
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.
2. Which destival have you attended recently? Talk something ablout it( where it took place, How often ot celebrate/ why/ how you feel...)
- Topic 4: Souces of energy.
1. What are renewabe/ non-renewable sources of energy?
2. What are advantages of solarpower/ wind power?
What are disadvantages of fossil fuels?
3. Do you think people will use solar energy widelyin the future? Why?
- Topic 5: Travelling in the future.
1. Can you tell the names of transport people will use in the future?
2. You think about a
future means of transport to help prople in big cities avoid traffic jam. ( name of transport/ how many people it can transport/ where people use/ what technology/ what it look like...)
- Topic 6: An overcrowded world
1. What are the problems in overcrowded cities in the world?
2. Do you like to live in an overcrowded area? Why?
M.n giúp mình trả lời mình cần gấp. Mai mình thi nói

1
17 tháng 5 2017

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.

20 tháng 7 2023

1 don't they

2 isn't it

3 can't we

4 is it 
thắc mắc chỗ nào e cứ hỏi nhé ạ

 

20 tháng 7 2023
4 tháng 7 2018

Đáp án: Everyone wants to reduce pollution.

Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels. It has been suggested that water pollution is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people daily. An estimated 580 people in India die of water pollution related illness every day. About 90 percent of the water in the cities of China is polluted. As of 2007, half a billion Chinese had no access to...
Đọc tiếp


Water pollution is a major global problem which requires ongoing evaluation and
revision of water resource policy at all levels. It has been suggested that water
pollution is the leading worldwide cause of deaths and diseases, and that it accounts
for the deaths of more than 14,000 people daily. An estimated 580 people in India
die of water pollution related illness every day. About 90 percent of the water in the
cities of China is polluted. As of 2007, half a billion Chinese had no access to safe
drinking water. In addition to the acute problems of water pollution in developing
countries, developed countries also continue to struggle with pollution problems. For
example, in the most recent national report on water quality in the United States, 44
percent of assessed stream miles, 64 percent of assessed lake acres, and 30
percent of assessed bays and estuarine square miles were classified as polluted.
The head of China’s national development agency said in 2007 that one quarter the
length of China’s seven main rivers were so poisoned the water harmed the skin.
Water is typically referred to as polluted when it is impaired by anthropogenic
contaminants and either does not support a human use, such as drinking water, or
undergoes a marked shift in its ability to support its constituent biotic communities,
such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and

earthquakes also cause major changes in water quality and the ecological status of
water.
1. What is the leading worldwide cause of deaths and diseases?
2. How many people die every day by water pollution?
3. How many percent of the water in the cities of China is polluted?
5. What phenomena cause major changes in water quality and the ecological status
of water?

1
24 tháng 2 2020

Water pollution is a major global problem which requires ongoing evaluation and
revision of water resource policy at all levels. It has been suggested that water
pollution is the leading worldwide cause of deaths and diseases, and that it accounts
for the deaths of more than 14,000 people daily. An estimated 580 people in India
die of water pollution related illness every day. About 90 percent of the water in the
cities of China is polluted. As of 2007, half a billion Chinese had no access to safe
drinking water. In addition to the acute problems of water pollution in developing
countries, developed countries also continue to struggle with pollution problems. For
example, in the most recent national report on water quality in the United States, 44
percent of assessed stream miles, 64 percent of assessed lake acres, and 30
percent of assessed bays and estuarine square miles were classified as polluted.
The head of China’s national development agency said in 2007 that one quarter the
length of China’s seven main rivers were so poisoned the water harmed the skin.
Water is typically referred to as polluted when it is impaired by anthropogenic
contaminants and either does not support a human use, such as drinking water, or
undergoes a marked shift in its ability to support its constituent biotic communities,
such as fish. Natural phenomena such as volcanoes, algae blooms, storms, and

earthquakes also cause major changes in water quality and the ecological status of
water.
1. What is the leading worldwide cause of deaths and diseases?

Water pollution is the leading worldwide cause of deaths and diseases.
2. How many people die every day by water pollution?

More than 14,000 people die every day by water pollution.
3. How many percent of the water in the cities of China is polluted?

25% of the water in the cities of China is polluted.
5. What phenomena cause major changes in water quality and the ecological status
of water?

Volcanoes, algae blooms, storms, and earthquakes.

II/ Read the passage and answer the question : Air pollution is a serious problem in many cities. Motor vehicles, factories and other source create so much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the people who live in cities. City wastes cause water pollution when they are poured into the waterways. These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have difficulties in disposing their garbage....
Đọc tiếp

II/ Read the passage and answer the question :
Air pollution is a serious problem in many cities. Motor vehicles, factories and other source create so
much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the
people who live in cities. City wastes cause water pollution when they are poured into the waterways.
These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have
difficulties in disposing their garbage. The amount of garbage grows each year, but places to put it are
quickly filling up Citizens, governments, industries, scientists and business people must work
together in different ways to gradually reduce pollution.
True ( T ) or False ( F ) in the space provided
1/ Air pollution is a serious (dangerous) problem in many cities . __________
2/ Air pollution doesn't cause danger to people's health in some cities
3/ Motor vehicles and factories are some of sources of air pollution . ____________
4/ Only factories are the main source of air pollution ._________
5/ Air pollution is the only problem of the environment in this passage .
6/ Some areas are unfit for swimming because of the city wastes .____________
7/ The amount of the garbage in large cities reduces each year ._________
8/ Everyone must cooperate to reduce pollution . ______________

III/ Read the passage and answer the question :
Everyone wants to reduce pollution, but the pollution problem is as complicated as it is serious.
It is complicated because much pollution is caused by things that benefit people. For example,
exhaust from motorbikes causes large percentage of air pollution. But the automobile provides
transportation to millions of people. Factories discharge much of the material that pollutes air
and water, but factories give employment to a large number of people.
Thus, to end or reduce pollution immediately, people would have to stop using many things that
benefit them . Most people do not want to do that, of course. But pollution can be gradually
reduced in many ways. Scientists and engineers can work to find ways to lessen the amount of
pollution that such things as automobiles and factories cause. Governments can pass and enforce
laws that require businesses and individuals to stop or to cut down on certain polluting activities.
True ( T ) or False ( F ) :
1. All people want to reduce pollution_____
2. Pollution problem is neither complicated nor serious_____
3. Pollution is brought about by things that benefit people_____

4. People have to sacrifice what they have to stop or reduce pollution_____
5. The government can't do anything to stop or reduce pollution.______

IV/ Read the passage and answer the questions:
Every day on radio, on TV and in the newspapers, we hear , see, read about many problems in
the world , for example , pollution problems.
Air pollution is the first kind. It mostly comes from fumes released from motorbikes, cars,
airplanes, trains and poisonous gases emitted from factories. Also, waste is dumped anywhere even
in the city where many people are living. The second pollution is sea pollution. Many people earn
their living from fishing the sea, and the fish they catch feed many people. But the sea has become so
polluted from oil spills and factory wastes that the fish are dying. This pollution is not only killing the
fish, but also affecting those people who eat fish.
Seldom do you find a place nowadays that is not polluted. This problem is growing more
difficult every day. We must find a good solution that makes the world a better place to live.
True — False — Not given?
1. Pollution is one of the city's problems_____
2. Exhaust fume comes from vehicles , airplane and factories_____
3. People pollute seas from dynamite fishing____
4. You can find easily a place nowadays that is not polluted_____

0
Give the correct form of the words in bracket 1. We are going to give a...... about water pollution (present) 2. Many people have received medical.......because of the disease (treat) 3...........................has caused the problem of air pollution (industry) 4 The................in air pollution was dramatic last year (reduce) 5. Students are taught about............issues at school (environment) Read the passage and fill in the each blank with ONE suitable word harms move affects...
Đọc tiếp

Give the correct form of the words in bracket

1. We are going to give a...... about water pollution (present)

2. Many people have received medical.......because of the disease (treat)

3...........................has caused the problem of air pollution (industry)

4 The................in air pollution was dramatic last year (reduce)

5. Students are taught about............issues at school (environment)

Read the passage and fill in the each blank with ONE suitable word

harms move affects indirect effects

protect harmful leads can caused

EFFECTS OF AIR POLLUTION

there are different kinds of negative and harmful effects of air pollution. Air pollution (1)......... global warming in a great scale. The global warming (2)................ to the increase of temperatures worldwide, the increase in sea levels and the melting of icebergs. It (3)........... all species on the earth. The effects of air pollution are very (4)....... for health. It causes diferent kinds of diseases like heart attack, cancer,etc. Every year millions of people of all over the world die due to direct or (5)........... effects of air pollution. Acid rain is another efect of air pollution. acid rain can cause great damage to human, animals and crops. Air pollution (6)........... the wild life. Humans and animals face a lot of serious efects due to air pollution. Toxic chemicals present in the air can forrce wildlife species to (7)........ to new place and change their habitat. The toxic pollutants over the surface of the water can also affect sea animals. It is right time (8)......... ourr environment. To create a better place to live, we have to stop the air.

2
17 tháng 1 2020

Give the correct form of the words in bracket

1. We are going to give a...presentation... about water pollution (present)

2. Many people have received medical...treatment....because of the disease (treat)

3........Industrial...................has caused the problem of air pollution (industry)

4 The.......reduction.........in air pollution was dramatic last year (reduce)

5. Students are taught about...environmental.........issues at school (environment)

17 tháng 1 2020

Read the passage and fill in the each blank with ONE suitable word

harms move affects indirect effects

protect harmful leads can caused

EFFECTS OF AIR POLLUTION

there are different kinds of negative and harmful effects of air pollution. Air pollution (1) effects global warming in a great scale. The global warming (2) leads to the increase of temperatures worldwide, the increase in sea levels and the melting of icebergs. It (3) harms all species on the earth. The effects of air pollution are very (4) harmful for health. It causes diferent kinds of diseases like heart attack, cancer,etc. Every year millions of people of all over the world die due to direct or (5) indirect effects of air pollution. Acid rain is another efect of air pollution. acid rain can cause great damage to human, animals and crops. Air pollution (6) affects the wild life. Humans and animals face a lot of serious efects due to air pollution. Toxic chemicals present in the air can forrce wildlife species to (7) move to new place and change their habitat. The toxic pollutants over the surface of the water can also affect sea animals. It is right time (8) protect ourr environment. To create a better place to live, we have to stop the air.

28 tháng 3 2022

k có 5 sao đâu nha bạn.

vs lại việc bạn lên mạng nhờ viết khác gì việc lên mạng chép lại.  Các bài trên đây chỉ mang tính tham khảo nha.

19 tháng 5 2019

1 Planting many trees to help protect the environment, treat the surrounding sanitation environment, limit the use of plastic bags, take advantage of solar energy to use and apply modern science to life.
2 Causes of water pollution. The main causes of water pollution are the most frequently created and induced human by increasing industry and human activities. Mainly derived from pollution with domestic, industrial, agricultural waste and leakage without plans to flow out of rivers and lakes.
3 Câu này bạn tự trả lời nha. Câu hỏi là :Bạn học Tiếng Anh được bao lâu rồi?
4 Dịch :Nói cách học Tiếng Anh
5 Dịch: Bạn có thể cho một số nước nói tiếng Anh không?
Gợi ý:English-speaking countries such as the US, India, Pakistan, Nigeria, England, Philippines, Germany, Egypt, Canada, Bangladesh.
6 The symbol of the United States is the white-headed eagle that we often see on the badge of US agencies. It is also a large bird, eating meat and living in Alaska. The eagle is the sky lord, symbolizing courage, strength, foresight, immortality.
7 Dịch : Bạn đã bao giờ là một cơn bão?
8 Dịch : Nó trông như thế nào?
9 Dịch :Bạn nói điều gì về nó?
10 Communication means all the elements that we use to show our attitudes, feelings, relationships and other expressions in the communication process. The means of communication can be divided into two main groups, language and nonverbal.
11 Dịch: Bạn sử dụng công cụ giao tiếp nào để nói chuyện với bạn bè?
12 Erupting volcanoes, floods, forest fires, hydroelectric dams, bridge collapses, tsunamis, ...
13 Expanding production capacity, promoting economic growth and development, promoting the process of economic formation and restructuring, increasing the competitiveness of goods, promoting market economy.