①国家主权和国家安全

②领土完整和国家统一

③宪法确定的国家政治制度和社会大局稳定

④经济社会可持续发展的基本保障

完形填空

    The summer vacation is the best time for students．They can go outdoors and have fun．They can go to big cities to  1，or go to the countryside to 2the beauty of nature(大自然)．

    Peter is an American middle school student and he loves 3  very much．He always travels in his country．

    This summer vacation he wants to do4．He is interested in Chinese history． 5he is flying to Beijing and Xi'an for the summer vacation．He is leaving on l2th July and 6 New York on the last day of the month．He plans 7 a fantastic vacation．During the 8，he is visiting places of interest and going shopping．At night，he is  9  to enjoy the night views．,He is sure he will have a  10 time．

九月九日忆山东兄弟

王  维

独在____为异客，每逢____倍____。

兄弟登高处，____茱萸____。