Bài tập & Lời giải
A presentation about global warming
1. Listen and read. (Nghe và đọc)
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.
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2. Read the conversation again and complete the diagram, using the following phrases.
(Đọc đoạn hội thoại một lần nữa và hoàn thành sơ đồ, sử dụng các cụm từ sau)
a. Trapping the sun‘s heat
b. Making the planet warmer
c. Producing certain gases (e.g. CO2)
d. Stopping the heat from escaping
[ 1 ] _________ --> [ 2 ] _________ --> [ 3 ] _________ --> [ 4 ] _________
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3. Match the words to make phrases used in 1.
(Nối các từ để tạo thành các cụm từ được sử dụng trong 1)
1. global |
a. activities |
2. heat - trapping |
b. gases |
3. greenhouse |
c. warming |
4. human |
d. levels |
5. sea |
e. pollutants |
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4. Complete the sentences with the correct verb forms from 1.
(Hoàn thành các câu với các dạng động từ chính xác từ 1)
1. _________ for energy, fossil fuels release large amounts of carbon dioxide into the atmosphere.
2. _________ too much of the sun’‘s heat, greenhouse gases stop it from escaping back into space.
3. As temperatures rise, polar ice caps melt faster, __________ more water to oceans.