阅读下列短文，根据要求完成任务。
Two farmers were on their way home one evening after a hard day's work. Both were tired. They happened to look up at the sky and saw a black cloud overhead.
"Ah!" said one farmer, "tomorrow we shall have rain and the rice will grow well." The second answered, "Nonsense (胡说), the rain will only kill the crops (庄稼)."
So they began to quarrel (争吵). Just then a third farmer came along and asked them why they were quarreling. Both farmers explained about the black cloud.
"What cloud?" asked the third farmer. They all looked at the sky. The cloud was no longer there.
根据短文内容，完成下列句子（所填内容可能是单词、短语或句子）：
小题1: The two farmers were going _____________.
小题2:They happened to look up at the sky and saw a black cloud overhead.
英译汉___________________________________
小题3:Who quarrelled in the text ?________________________
小题4:The third farmer came along and said to the other two. He wanted to___________________.
小题5:How many farmers were there in the text?_____________
（过氧乙酸）→
+CH3COOH 
+HOCH2CH2-O-CH2CH2OH+2H2O