京广高铁是以客运为主的快速铁路。读图回答下列问题。
小题1:影响京广高铁建设的主要因素是
A．自然资源
B．气候条件
C．城市分布
D．地形地势小题2:建设京广高铁的重要意义有
①缓解人地矛盾，分散大城市职能
②改善京广高铁沿线都市圈的生态环境
③加强区际联系，改善交通条件
④增强城市的辐射能力，加快我国城市化的整体进程
A．①②
B．③④
C．①④
D．②③
小题1:C
小题2:B
题目分析：
小题1:读图可知，京广高铁经过了北京、石家庄、武汉、长沙、郑州等城市，故影响京广高铁建设的主要因素是城市分布。
小题2:京广高铁建设有利于加强地区之间联系，改善交通条件，可以增强城市的辐射能力，使大城市更好的发挥中心城市的作用，同时推动沿线现有城市的经济发展和功能升级，并促进新的城镇的形成和发展，加快我国城市化的政体进程。
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Do you know how to study better and make your study more effective (有效的)? We all know that Chinese students usually study hard for long hours.This is very good, but it doesn't __1__ a lot. If you want to study effectively, you must have enough sleep,enough food,enough rest and __2__. Every day you need to go out for a walk or visit some friends or some nice places.It's good for y  our __3__.When you return to your studies,your mind will be refreshed (清醒) and you'll __4__ more and study better. Here takes English learning as an example. First you make a lot of progress (进步) and you feel __5__. Then your languages study seems to stay the same and you may __6__ it. This can last for days or even weeks, __7__ you needn't lose hope. At some point your language study will __8__ take another big jump. You'll see that you really have been learning all the time. If you get enough sleep, food, rest and exercise, studying English can be very effective and __9__. Don't drop it along the way. Learn slowly and you're sure to get __10__ result. | |||
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