中年级边读边练《黄色星期天》参考答案1.A.不是B.是C.是2.一次次3天上土黄色,地上土黄色,天和地的界限已不那么清晰。沙尘暴就是人们不注意保护环境的恶果。4.不断努力,植树造树,保护环境,保持生态平衡,遵循自然规律,爱护我们的生存环境。高年级边读边练《冬天的毛衣》参考答 The middle-grade reading while practicing “Yellow Sunday” reference answer 1.A. is not B. Yes C. Yes 2. Over and over again 3 days on the earth yellow, earthy yellow, heaven and earth boundaries are not so clear. Dust storms are the result of people's failure to protect their environment. 4. Continuous efforts to plant trees, protect the environment, maintain ecological balance, follow the laws of nature, love our living environment. Senior reading while practicing “winter sweater,” the reference to answer