Ⅰ.单句填空
1.Peter and Paul had got (permit) from their parents to camp in a field close to their farm.
答案permission
2.The girl could learn from the living examples (establish) a sense of security.
答案to establish
3.There was no danger of transmitting the (infect) through operations.
答案infection
4.The accident left the boy (severe) brain-damaged and almost totally relied on others.
答案severely
5.These animals consumed a large amount of vegetation,which (reduce) plant diversity in the park.
答案reduced
6.The average family in Europe throws as much as £3,000 worth of (reuse) materials into its dustbin each year.
答案reusable