Bài tập 2 Skills 2 sgk tiếng anh lớp 8 tập 2 trang 13

2. Listen to part of a conversation on TV between a reporter and an environmentalist about thermal pollution. Complete the diagram. Use no more than three words for each blank.
(Nghe một phần của đoạn hội thoại trên ti vi giữa một phóng viên và một nhà môi trường học về ô nhiễm nhiệt. Hoàn thành biểu đồ sau. Sử dụng không quá ba từ cho mỗi chỗ trống.) 
Đáp án:
1. hotter 
2. cooler 
3. cool 
4. warm rivers 
5. Warmer water
6. fish populations 
7. Harmful 
8. colour 
9. poison 
10. cool down
Audio script:
Reporter: Does thermal pollution mean that bodies of water get hotter, Mr Nam?
Mr Nam: Not always. Sometimes the water becomes colder, and that’s also thermal pollution. In general, thermal pollution means a change in the water temperature.
Reporter: That’s interesting! What causes it?
Mr Nam: Power stations are one factor. They use water in the nearby lakes or rivers to cool their equipment, which heats up the water. Then they dump the hot water back into its source.
Reporter: Are there any other causes?
Mr Nam: Yes. Thermal pollution may also happen due to the discharge of cold water from reservoirs into warm rivers.
Reporter: Thermal pollution can have dramatic effects. Right?
Mr Nam: Certainly. Most aquatic creatures need a certain temperature to survive. Warmer water has less oxygen in it, and this can harm fish populations. Besides, warmer water can cause harmful algal blooms. This can change the colour of the water like in the first picture and, more seriously, the algae poisons the fish.
Reporter: What can we do, Mr Nam?
Mr Nam: In many places, they build cooling towers like in the second picture to cool down the water from power stations.
Reporter: Anything else we can do? …