2016届浙江建德市高考英语二轮完形填空能效训练（4）_高考复习指南

2016届浙江建德市高考英语二轮完形填空能效训练（4）

　　浙江建德市2016高考英语完形填空（二轮）能效训练（4）及答案

　　2016高考英语完型填空（政治经济文化类）

　　Early Native American groups lived in different cultural areas. Their environments had resources. Each group made particular products or developed certain skills, besed on their own As they perfected their skills, exciting began to happen. For the first time in their history, they had more things than they

　　They wouldn’t let their products go to , of course. When Native American groups began to communicate with each other, they began to things they wanted or needed. The they traded goods and services without using any form of money was called bartering. Thanks to bartering, people began to enjoy a better of life. To barter with others meant that work became much . No one group had to work as hard to make or find everything they needed for survival.

　　Native American groups would often travel long distances for the chance to with each other. In between trading times, they would or collect extra products. They kept them especially for the purpose of bartering with other native groups at their trade meetings.

　　Another of trading between cultural areas was that people could enjoy products that were to make with the resources in their own . For example, people from the Desert Southwest area tools made from whalebone(鲸须). There was no whalebone available in the . However they could get it from the natives living in the Pacific Northwest area.