选择最恰当的单词或词语，完成短文

    Former Presidents (前任总统) in the United States continue to receive special government services and money after their presidential term (总统 任期) ends. Each former president receives retirement pay, money to pay travelling expenses and money to pay the people who continue to work for them. They also get security 1 for the rest of their lives.

    Some former presidents seem to have 2from public life. But others continue to make contributions (做贡献) to the society.

    Former President Jimmy Carter is well known for his earnest devotion (热诚的奉献) since he left office. He helps build homes for poor Americans and helps settle international disagreement. And he has written several books. Many people have called Carter an example of a successful former president. Some experts note that public approval (公众的赞许) of Carter increased several years after his defeat in the presidential election (总统大选) of 1980.

    3 the opposite happened to former president Ronald Reagan. His popularity fell after he left office. Many people criticized him for4 an offer from a wealthy Japanese publisher to visit Japan. There he was paid about two million dollars just to make a few appearances. In 1994, Reagan began to suffering from Alzheimer's disease (老年痴呆症) and died ten years later.

    Former President George Bush has made few 5 appearances since leaving office. Recently, however, he and former President Bill Clinton have traveled together to places in need of aid following natural disasters.

    Bill Clinton is one of the most active former presidents. He makes speeches around the world. He wrote a best-selling book about his life. And he has set up a foundation that offers various 6 to people in need, including providing low cost medicines for people with AIDS around the world.

阅读下面的文言文，完成下列小题。

    杨尚希，弘农人也。父承宾，商、直、淅三州刺史。尚希龆龀而孤。年十一，辞母请受业长安。涿郡卢辩见而异之，令入太学，专精不倦，同辈皆共推伏。周太祖尝亲临释奠，尚希时年十八，令讲《孝经》，词旨可观。太祖奇之，赐姓普六茹氏，擢为国子博士。仕明、武世，历太学博士、太子宫尹、计部中大夫。宣帝时，令尚希抚慰山东、河北，至相州而帝崩，与相州总管尉迥发丧于馆。尚希出谓左右曰：“蜀公哭不哀而视不安，将有他计。吾不去，将及于难。”遂夜中从捷径而遁。迟明，迥方觉，分数十骑自驿路追之，不及，遂归京师。高祖以尚希宗室之望，又背迥而至，待之甚厚。及迥屯兵武陟，遣尚希督宗室兵三千人镇潼关。寻授司会中大夫。

    高祖受禅，拜度支尚书，进爵为公。尚希时见天下州郡过多，上表曰：“自秦并天下，罢侯置守，汉、魏及晋，邦邑屡改。窃见当今郡县，倍多于古，或地无百里，数县并置，或户不满千，二郡分领。具僚以众资费日多吏卒人倍租调岁减清干良才百分无一动须数万如何可觅所谓民少官多十羊九牧琴有更张之义瑟无胶柱之理。今存要去闲，并小为大，国家则不亏粟帛，选举则易得贤才，敢陈管见，伏听裁处。”帝览而嘉之，于是遂罢天下诸郡。

    尚希性弘厚，兼以学业自通，甚有雅望，为朝廷所重。上时每旦临朝，日侧不倦，尚希谏曰：“周文王以忧勤损寿，武王以安乐延年。愿陛下举大纲，责成宰辅，繁碎之务，非人主所宜亲也。”上欢然曰：“公爱我者。”尚希素有足疾，上谓之曰：“蒲州出美酒，足堪养病，屈公卧治之。”于是出拜蒲州刺史，仍领本州宗团骠骑。尚希在州，甚有惠政，复引瀵水，立堤防，开稻田数千顷，民赖其利。开皇十年卒官，时年五十七。

（节选自《隋书•卷四十六》）

阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C、D四个选项中选出可以填入相应空白处的最佳答案。

    Every day some people are killed while they are crossing the roads. 1 of these people are old people and children.Old people are often killed because they can't see or hear very well.Children are killed because they are not 2 .They forget to look and listen before they 3 the roads.

    A car or a bus can't stop quickly.If a car is going very fast, it will travel many meters before it stops.Some people don't always understand this.They think a car can stop in a few meters.It is difficult to 4 how fast a car is moving.The only way to cross the roads safely is to look both ways, right and left.Then if the roads are 5 , you can cross them.

读我国塔里木盆地荒漠化发展地区分布示意图（阴影部分表示荒漠化发展地区），回答下列各题。