1. Choose the correct forms of the verbs to complete the sentences.

(Chọn dạng đúng của động từ để hoàn thành câu.)

1. Known/Knowing that Mai is interested in environmental issues, Mike bought her a book about global warming.

2. Affected/Affecting badly by soot produced by their old coal stove, they decided to switch to an electric stove.

3. Waited/Waiting for his classmates, Tuan made some changes to their presentation on deforestation.

4. Burnt/Burning in open fires, rubbish and organic waste produce a great amount of black carbon.

5. Encouraged/Encouraging by students’ interest in climate change, the Green Club members organised many activities to raise awareness of the issue.

6. When cut/cutting down, trees release a lot of carbon dioxide into the atmosphere.

7. Done/Doing research on climate change, Mike became interested in environmental studies.

8. Used/Using widely for cooking and heating, sunlight and wind can reduce use of fossil fuels

2. Rewrite the sentences using present or past participle clauses.

(Viết lại câu sử dụng mệnh đề phân từ hiện tại hoặc quá khứ.)

1. Black carbon traps sunlight and sends it back into the air as heat.

⇒ _____________________________, black carbon sends it back into the air as heat.

2. When fossil fuels are burnt for energy, they release CO2 and other greenhouse gases.

⇒ _____________________________, fossil fuels release CO2 and other greenhouse gases.

3. Some farmers burn crop waste and kill the useful bacteria living in the soil.

⇒ _____________________________, some farmers kill the useful bacteria living in the soil.

4. Mr Viet is a geography teacher, so he knows a lot about climate change.

⇒ _____________________________, Mr Viet knows a lot about climate change.

5. Many buildings were hit by the heavy storm and got seriously damaged.

⇒ _____________________________, many buildings got seriously damaged.

6. When farmers cut down forests to make space for farm animals and crops, they contribute to global warming.

⇒ _____________________________, farmers contribute to global warming.

3. There is a mistake in each sentence. Find the mistake and correct it.

(Có một lỗi sai trong mỗi câu. Tìm lỗi và sửa nó.)

1. Black carbon falls on the surface of snow or ice, speeds up the melting process.

2. Sea levels will continue to rise if global warming is not limiting.

3. Flooding during the heavy rain, our house took a week to dry up.

4. If carbon emissions reduced, the impact of global warming will be less serious.

5. Affecting by climate change, some regions are experiencing extreme heat.

6. If we using more renewable energy, the price of natural gas and coal will go down.

7. To be a powerful greenhouse gas, methane causes nearly a third of today’s warming from human activities.

8. Been cut down or burnt, trees release the carbon they store into the atmosphere as CO2.