从方框中选择最佳选项完成对话，有两项多余

a. It's nothing serious about the environment.

b. What are your feelings about this report?

c. Secondly, we should develop good habits in our daily lives.

d. Low-carbon has become a high-frequent and fashionable word recently.

e. It is always possible to use less energy in any process.

f. How can we live a low-carbon life?

g. Because paper cups are made from trees.

A: Hi, Bill, you also came to listen to the “energy and the sustainable development” report?

B: Yes, Polly and I are discussing our views. 

A: It's great. I think developing new energy is pressing(紧迫的, 紧急的)such as wind power, solar energy, water power, nuclear fusion power, and hydrogen gas.

B: If the new energy is used for our life, we can live a low-carbon life. Low-carbon life means a kind of lifestyle in which people do their best to reduce energy consumption and carbon greenhouse gas emissions.

A:

B: I think firstly, we should recognize that low-carbon life is not only a kind of lifestyle but also a life attitude. It's our duty to control the global temperature.

A: We should protect the environment. For example, we had better not use paper cups. We should save the electricity. We should use efficient light bulbs(电灯泡). And the lights should be turned off when not needed.

B: Let us go back to prepare our studies.