Exhausted forms of traditional energy sources

Problem 1: (1) Environmental protection and no pollution; (2) inexhaustible; ⑶ Low development cost and broad prospects.

Question 1: Main expl

Exhausted forms of traditional energy sources

Problem 1: (1) Environmental protection and no pollution; (2) inexhaustible; ⑶ Low development cost and broad prospects.

Question 1: Main explanation method: column number; Objective: To show that solar energy resources are very rich. [If the students explain according to the contents of paragraphs 2 and 3, it is also correct. Only answer "most parts of China are rich in solar energy resources", and get 1 minute]

Question 1: "1" shows that solar energy is one of the "renewable energy sources that can obtain energy at present and reduce the emission of harmful gases and substances such as carbon dioxide", and other energy sources also have this feature.

"Hopefully" means that solar air conditioning is expected to "enter people's lives" this year, but it is not completely certain at present. (The above meaning is correct.

Question 1: From the first paragraph "solar energy is one of the renewable energy sources that can not only obtain energy but also reduce the emission of harmful gases and substances such as carbon dioxide", it is concluded that "① environmental protection and no pollution"; From paragraph (2), "solar energy resources are very abundant and inexhaustible, which is an important energy source that human beings can freely use", "(2) inexhaustible"; It is concluded from paragraph 4 that "(3) the development cost is low and the prospect is broad".

Item 2: List the figures: "1.7×lO 14 kW", "7.4× 1O 13 kWh" and "2000 hours"; This shows that solar energy resources are very rich.

Question 3: "one" means only one of them, not all of them. In addition, there are other energy sources that also have this feature. It embodies the accuracy and rigor of explanatory language.

"Hope" means "hope", which means "solar air conditioning is expected to enter people's lives this year, but it is not completely certain. It also reflects the accuracy and rigor of the interpretation language.