15. A. Under B. Between C. For D. With
名师点评
这篇文章主要讲述了鳄鱼的生活习性,你也许会感叹:大自然太神奇了!如果鳄鱼没有长长的尾巴,它拿什么作武器?如果鳄鱼能转动它的舌头,那鳄鱼鸟怎么生存?
答案简析
14. A. because B. so C. if D. whether
13. A. pulled B. cleaned C. taken D. brushed
12. A. not only B. still C. even D. only
11. A. tail B. head C. eyes D. body
10. A. most B. best C. once D. worst
9. A. soon B. far C. up D. down
8. A. friend B. enemy C. student D. family
7. A. should B. can C. need D. must
6. A. is used B. for help C. very useful D. be helpful