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1. Paragraph (1) explains the difference between halo and rainbow in what two ways? (Each answer shall not exceed 5 words) Answer: (1) □□□□□□□□ (2) □□□□□□□□□ 2. The word "they" in paragraph (3) is _ _ _ 3. "This discovery" in paragraph (3) refers to (a). They only show their true colors. 4. The following is the understanding of paragraph (4). Correct: (a) Halo is formed by the reflection of light through air in the sky. B. Halo is formed by sunlight reflecting through air. C. Halo is formed by refraction of light through ice crystals in clouds. 5. Paragraph (5) takes Altay, Xinjiang as an example.

Answer: Halo-Nature's Weather Forecast Map: 1. (1) brightness (2) color arrangement 2. Three each. C4。 D5。