Chúng tôi thường mua đồ ăn ở các chợ địa phương khi đi du lịch.

Thường là sau khi đến nơi tôi mới đi tìm khách sạn.

Anh ấy luôn mua quà lưu niệm ở cửa hàng này.

Mia thường đặt phòng khách sạn trực tuyến.

Mike has a very bad toothache. He................the dentist as soon as possible.

It's going to rain. You.................an umbrella when you go out.

…...............the picture on the bedroom wall or living room wall?

I'm going to Da Lat for a few days. Where....................?

Norway is very cold in December and January. You................there in winter.

Fifty years ago, nobody lived in Antarctica but now between 1,000 and 5,000 scientists live and work there all year, and over 50,000 tourists visit every year. The main way for tourists to visit the continent is by ship. There are no hotels, so cruise holidays are very popular. As a result of so many tourists, some people think the numbers of wild animals and birds are decreasing.

How is Antarctica different from 50 years ago?

I don't like holidays with hotels, beaches and swimming pools, and I'm not interested in sightseeing in old cities. So for my next holiday, I plan to do something exciting outdoors.

What type of holidays does the writer prefer?

There are no hotels in Antarctica, so cruise holidays are very popular. As a result of so many tourists, some people think the numbers of wild animals and birds are decreasing. Many cruise companies teach their passengers about the wildlife in Antarctica and give money to environmental organizations in the region. These organizations want to help the nature and wildlife of Antarctica so it doesn't change in the future.

What do cruise companies do to the changes in Antarctica?

When I choose a holiday, I don't want to go somewhere and see lots of other tourists. I want to be the only person there. Antarctica should be perfect for me. It's huge, it's quiet and it's thousands of kilometres away from other countries. It doesn't have a government and there are no cities, so there's no pollution or noisy traffic. It has lots of wildlife.

Why is the writer thinking about going to Antarctica for holiday?

I don't like holidays with hotels, beaches and swimming pools, and I'm not interested in sightseeing in old cities. When I choose a holiday, I don't want to go somewhere and see lots of other tourists. I want to be the only person there, which is difficult these days. Is there anywhere in the world without other people? What about Antarctica?

What type of holiday destination does the writer prefer?

Cực Bắc cách Cực Nam 20,000 km.

70% bề mặt trái đất là nước.

Anh ấy cao 1m75 và nặng 65 kg.

Hôm nay trời lạnh 14 độ.

Nhiệt độ ở tâm trái đất là bao nhiêu?

Question: A: …………to another country? B: No, they won't. They will continue to live here.

Question: It will be cold, but it.............snowy tomorrow.

Question: Climate experts predict the rainfall in this region................in the next 30 years.

Question: A: ................rainy this afternoon? B: No, it won't. It will be snowy.

Question: It...............hotter in my country in the future.

Ira Block took a photo of the US state of South Carolina, and a photo of Baffin Island in the Arctic. She took the two photos because about fifty-six million years ago, the Arctic probably looked like South Carolina today. At that time, the average temperature in the Arctic was around twenty-five degrees Celsius while it is around minus ten degrees now.

Question: How different is the Arctic now from 56 million years ago?

Climate scientists have studied the rainfall change on the Earth over 30 years. The change in rainfall is very different from region to region. It has increased in some countries, for example Venezuela, and scientists think it will continue to increase in the future. But rainfall has decreased in other places such as parts of Brazil. In these regions, rainfall will continue to decrease.

Question: What do climate scientists predict for rainfall in Venezuela?

Climate change is a big problem for the world today. It means that the weather on Earth is getting warmer very quickly. The main cause of this warming is human activity, such as using cars and factories. These actions cause the greenhouse effect. Over time, the planet's overall temperature increases.

Question: What is mainly causing climate change?

One of the biggest issues of climate change is that ice at the poles is melting. This causes sea levels to rise and can lead to flooding in coastal areas. Animals that live in these cold places are also losing their homes. This is why some animals, like polar bears, are in trouble.

Question: What trouble does ice melting cause to some animals?

Climate scientists have measured the temperature and rainfall on every part of the Earth over many years. They look at the changes and predict the future. The map shows the temperature change over 30 years. In most parts of the world, the temperature has increased by a few degrees and scientists think it will increase in the future.

Question: What predictions have climate scientists made after studying the global temperature change?

Everest là ngọn núi cao nhất trên thế giới.

Sa mạc Gobi bao phủ phần lớn miền nam Mông Cổ và miền bắc Trung Quốc.

Núi Dinpernalason năm ở phía đông của dãy núi Himalaya.

Malta là một hòn đảo xinh đẹp ở biển Địa Trung Hải.

Sông Hằng dài 2,525 kms và chạy từ Ấn Độ qua Bangladesh.

..………….is the deepest fresh-water lake in the world. It is located in..................

..…..........is the highest mountain in the world. It is in...............mountains.

..............is the largest hot desert in...........

…................is in England. It flows through................

……………...is a country in Europe. It is made up of............Scotland, Wales, and Northern Ireland.

If you're an explorer who's looking for new places to explore, here is an unexplored place. Lake Vostok in Antarctica is 14,000 square kilometres and freezing cold. Unfortunately, it's been under a sheet of ice for 15 million years. The ice is 3.7 kilometres deep so it's impossible to get to, though scientists have taken water from it.

Why can't we get into Lake Vostok?

To find a new Earth, first, astronomers look for a star. Then, they look for planets around it. Once they find a new planet, it's also important to measure the distance between the planet and the sun. That's because most planets ( unlike our Earth ) are either too near to the star or too far away.

Question: In what way is the Earth different from most planets?

For thousands of years, humans explored the Earth. Now astronomers are exploring space, looking for new planets or a new Earth for humans to live on in the future. First of all, astronomers look for a star. That's because our Earth orbits a star ( the sun ). When astronomers have found a star, they look for planets around it.

Question: Why are astronomers exploring space?

When astronomers find a planet in a good position, astronomers look for three things: water, air and rock. Water is important because if humans go there, they will need water to drink and to grow plants. If you can grow plants, then the plants can produce air for humans to breathe. Finally, astronomers also look for rocks, because water is often under the rocks.

Question: What is one of the things astronomers look for on a new planet?

There are lots of mountains in the world that nobody has climbed yet. For example, there's Mount Dinpernalason in the east of the Himalayan mountains in Asia. Or you could explore the Merume Mountains in Guyana in South America. But they are at the end of the 500-kilometre-long Mazaruni river - it's one of the most dangerous rivers in the world.

Question: What stands next to a dangerous river?

Họ sẽ trồng thêm nhiều cây vào tháng tới để tạo không gian xanh.

Ngày Trái Đất là vào ngày 22 tháng 4 hằng năm.

Mọi người trồng cây và dọn dẹp rác để giữ môi trường sạch sẽ.

Chúng tôi vừa tắt điện để hưởng ứng ngày trái đất.

Chúng ta nên tiết kiệm nước và điện để bảo vệ hành tinh.

Our school...............an Earth Day event last year.

We..................the lights for one hour to support Earth Hour yesterday.

You should..................reusable bags instead of plastic ones to reduce waste.

They are going..................the park this weekend to celebrate Earth Day.

....................is one of the most polluted cities in the world.

Earth Day began on April 22nd in 1970. Over 20 million people went to Earth Day in different cities across the USA. There were politicians, teachers, artists and musicians. Since that day in 1970, Earth Day has become famous all over the world. Nowadays, more than 175 countries have an Earth Day. Lots of people do different things to help the Earth.

Who participated in the first Earth Day?

Protecting the environment is important for our future. People can help by recycling, saving water, and using less plastic. Planting trees also helps clean the air. If everyone takes small actions, the Earth will be a healthier place to live. Governments and organizations also work together to create laws that protect nature.

What can everyone do to help the environment?

Every year on 22nd April, more than 190 countries celebrate Earth Day to protect the planet. The first Earth Day started in 1970 in America. On this day, people do different things to help the environment. Last year, people in China planted new trees. In the USA, they put energy efficient bulbs into houses. In Brazil, people picked up rubbish in public areas.

Where did people first celebrate Earth Day?

Paper can be recycled and is easy to dispose of, but paper is made from trees, which are important to the environment. The rainforests are important in many different ways. We need them not just because they help with the climate. They give us oxygen to breathe and plants to make medicines. They are also home to many animals who rely on them for their survival.

Why are rainforests important?

Earth Day began in 1970 in the United States, and about 20 million participated. By 1990, the 20th Earth Day, over 200 million people in 141 countries participated. Earth Day has become famous all over the world. Nowadays, more than 175 countries celebrate Earth Day. Lots of people do different things to help the Earth.

How many countries celebrated Earth Day 20 years after it began?