2015年6月的英语四六级考试已经告一段落，接踵而来的就是12月份的考试。英语四级考试中阅读所占比重为百分之三十五，阅读的重要性不言而喻。想要早点为下半年的四六级考试做准备就来看看文都网校整理的四级阅读练习题吧。

　　At Watson Bar Creek, a brook six thousand feet high in the mountains of British Columbia, Canada, a mineral search group gathered bags of tree seeds. Boxes were filled with small branches from the trees. Roots were dug and put into boxes. Each bag and box was __20__ marked. In a scientific laboratory the parts of the forest trees were burned to ashes and tested. Each small part was examined to learn whether there were minerals in it.

　　A. signs

　　B. sufficiently

　　C. locating

　　D. affect

　　E. merely

　　F. magic

　　G. hints

　　H. carefully

　　I. finding

　　J. message

　　K. flight

　　L. probable

　　M. revealing

　　N. based

　　O. information

　　11. K 12. L 13. J 14. F 15. E 16. C 17. A 18. N 19. D 20. H

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