Listen and read.

Mr Quang: Good morning, class. Today’s lesson will start with Mai and Nam’s talk about some of the causes and consequences of global warming. Would you like to go first, Mai?

Mai: Yes, thank you. First, let me remind you what global warming refers to - it’s the increase in the earth's temperature because of certain gases in the atmosphere.

Nam: Exactly. These gases are mainly produced through human activities. For example, burnt for energy, fossil fuels release large amounts of carbon dioxide into the atmosphere.

Mr Quang: But how do these gases make the earth warmer?

Mai: Well, they act like the glass in a greenhouse. Trapping too much of the sun’s heat, they stop it from escaping back into space. This makes the planet hotter and hotter.

Nam: That's right. That’s why these heat-trapping pollutants are known as greenhouse gases, and their impact is called the greenhouse effect.

Mai: Global warming is also linked to rising sea levels. As temperatures rise, polar ice caps melt faster, adding more water to oceans. Higher sea levels can also lead to floods.

Nam: Each year, the consequences of global warming become more serious, and its negative impact on the environment and people gets stronger.

Mr Quang: Good job! Thank you for sharing the information.

Complete the sentences with one of the words in the box.

1.    Don’t ……………….. me what happens at the end of the film.

2.    To ……………….. well you need to listen carefully to what people are saying.

3.    You shouldn’t use ……………….. in your English essays.

4.    I ……………….. online with my friends every day.

5.    You should always ……………….. what you think and be honest with people.

6.    I send about twenty ……………….. a day, which my dad thinks is too many.

7.    I wonder if I can ……………….. for her telephone number.

8.    My mum can ……………….. French and Spanish very well.

Viết câu điều kiện Loại 1 dựa vào các câu cho sẵn

1. Stop telling lies or no one will trust you anymore

2. Pay attention to the teacher or you can't unerstand the lessons

3. Go to bed early or you may be exhausted the next morning

4. Save money from and you can reward yourself with a long vacation at the end of the year

5. Read more books and you can broaden your knowledge

6. Brush your teeth often in order not to get toothache

7. Listen carefully or you won't know what to do