“淡水贵于油”是中东地区的真实写照，下列各项关于“淡水贵”的最主要原因，正确的是（　　）

    Confidence is very important in daily life. It can help you to develop a healthy attitude （态度）.A study shows that the people who are more confident are much happier. They can have more chance to make themselves successful. But how to be more confident? Here are some suggestions:
    ·Speak loud   When you are not confident, you can't do well what you want to do. You speak in a voice so low that other people can hardly hear you. Try to speak loud enough so that people can hear you clearly. The .high voice can help you become more confident.
    ·Play sports   Physical exercise makes you tired but completely relaxed. 3 A strong body helps you be full of confidence.
    ·Encourage yourself   Write down a list of things you did during the day to see how many things you have done well. Did you finish your homework? Did you tell a joke that made everybody laugh? Give yourself praise for the good things you've done.
    ·Get rid of （消除） fear   Fear comes along with failure （失败）. But it's easy to overcome （克服） if you know that failure is part of your life. Don't hide your head just because you said something stupid last time. Try to start again and believe you can do better.
    ·Pick up a hobby    If you like singing, sing as much as you can. 4 In some ways, a hobby can make you outstanding. And it will make you happy and confident.

银杏是植物中的活化石，如果想了解银杏树的形态结构，常用的科学方法是（  ）

阅读材料，完成下列要求.

    文物承载灿烂文明，传承历史文化，是加强社会主义精神文明建设的深厚滋养.

    让文物说话，让收藏在博物馆圼的文物、陈列在广阔大地上的遗产都活起来.各地免费开放的博物馆正在以潜移默化、润物无声的传播方式和资源优势，日益成为传播中国文化的重要渠道；山东济南和山西太原推动文物保护和旅游产业融合发展，将文化资源转变为产业优势；山西曲沃和广东开平的文物“认领”“认养”，让文物保护成为全民行动.

    最近，一部反映文物修复的纪录片《我在故宫修文物》经央视和网络传播后迅速走红，与纪录片一齐走红的还有主人公﹣﹣故宫文物修复师.他们既是在修复浮躁的心态和膨胀的欲望，引发社会对严谨、耐心、敬业、精细的工匠精神的肯定和褒奖.这种工匠精神，既体现勤劳之美的精神原色，又展现了创造之美的价值升华，应当成为我们全社会共同用崇尚的精神品质，时代存在于每一个从业者的心中.