Ⅰ. 根据首字母或汉语提示，用本单元所学的单词完成下列句子。
1．The following _________ (图表) shows the links among these age groups.
2．These rules will have ________ (积极的) influence on the development of the local market.
3．Actually they are watching the ________ (移动) of the fish going up the river.
4．I was looking ________ (向后地) over my shoulder when I recognized one of my old friends.
5．My sister can ________ (旋转) on her toes like a dancer.
6．He doesn’t know much about this subject, but he’s very e________.
7．The scientists are c_________ about using the new medical treatment on humans.
8．Surprisingly, one of my best students was r__________ by his dream university.
9．The earth is only one of the planets in the u__________.
10. Only if you put the sun there did the movements of the other planets in the sky make s________.
