________ ________ ________.

　　做兼职时，我发现有些顾客很有礼貌而其他的则不是。

　　7．________ ________ ________ ________ ________ the written form of a natural language is the written record of the oral form.

　　普遍认为一门语言的书面形式是口语形式的书写记录。

　　答案：1.set off for　2.folded; in half　3.to adjust to the darkness　4.Nearby are　5.make up the population of　6.whereas others were not　7.It is generally agreed that

　　Ⅳ.阅读理解

　　A

　　According to historical documents, the forefathers of the Naxi people were closely related to a tribe called "Maoniu Yi" in the Han Dynasty, "Maoniu Yi" in the Jin Dynasty and "Moxie Yi" in the Tang Dynasty.

　　Between the early 10th century and the middle of the 13th century, production in the Lijiang area experienced marked changes, as agriculture replaced livestock(家畜) breeding as the main occupation of the people. Scores of agricultural, handicraft, mineral and livestock products were turned out, and the country presented a picture of prosperity. During that period, a number of slave­owning groups in Ninglang, Lijiang and Weixi counties gradually grew into a feudal manorial lord caste(世袭封建庄园领主制)．

　　In 1278 the Yuan Dynasty established Lijiang Prefecture(自治州) representing the imperial court in Yunnan Province. This resulted in closer links between the Lijiang area and the centre of the empire.

　　In the early Ming Dynasty, the leader of the Naxi people, named Mude, was made chief of Lijiang Prefecture, exercising control over the Naxi and other ethnic groups nearby. Throughout the Ming Dynasty, the chiefs from the Mu family kept taxes and tribute(贡品) flowing to the Ming court in the form of silver and grain. The Ming, in turn, relied on the Mu family as the mainstay for the control of the people of various ethnic groups in northwestern Yunnan Province.

　　Later, with the development of the productive forces, buying, selling and renting of land began to take place in the Naxi areas, marking the beginning of a landlord economy.

　　1．In the 13th century, the main occupation probably be ________.

　　A. livestock breeding B. agriculture

　　C. fishing D. forestry

　　答案与解析：B　从文章第二段第一句可知，10世纪早期至13世纪中期丽江经济经历了重大变化，也就是"agriculture replaced livestock breeding"。

　　2．Lijiang Prefecture was set up in ________.

　　A. the Tang Dynasty B. the Song Dynasty

　　C. the Yuan Dynasty D. the Ming Dynasty

　　答案与解析：C　从第三段第一句可知答案。

　　3．During the Ming Dynasty, the Mu family kept taxes and tribute flowing to the Ming court in the form of ________.

　　A. gold B. livestock and gold

　　C. gold and silver D. silver and grain

　　答案与解析：D　从文章第四段可知， the Mu family向明朝政府进贡物品是"silver and grain"。

4．What marked the beginning of the landlord economy?