“它是伊朗的盟友，美国的敌人；它对活动在伊拉克、黎巴嫩和巴勒斯坦的激进组织发挥着核心作用；它的邻居还包括土耳其和以色列。”这里的“它”指的是今年在中东发生政治动荡的国家（　　）

    What do you do at weekends? Some people like to 1 at home, but others like to go for a walk 2 have a picnic. My friend Jack works hard in a factory during the 3. At weekends he always4the same thing. On Saturday he 5 his car and on 6 he takes his family to a nearby village. His uncle and aunt have a farm there. It isn't a 7 one, but there's always 8 to do. The children help with the animals and give them their 9, Jack and his wife help in the fields. At the end of the day, they are all 10 and Jack's aunt gives them a big meal.

孟子曰：“老而无妻曰鳏，老而无夫曰寡，老而无子曰独，幼而无父曰孤。此四者，天下之穷民而无告者。文王发政施仁，必先斯四者。”材料所体现的政治思想是