02 科学技术（12 / 13）

田怪圈附近看到过不明飞行物。或许有一天我们可以依靠科技和外星人直接交流。

notes

1. wonder [?w?nd?] v. 感到疑惑（好奇），想知道；n. 惊奇；奇迹

2. record [?rek?:d] n. 记录，唱片；履历；v. 记录，写下

3. astronaut [?str?n?:t] n. 宇航员

4. witness [?witnis] n. 目击者；证据；v. 目击；作证

5. illusion [ilu??n] n. 幻想，错误的假象，幻觉；错误，假象

小贴士

crop circle

a crop circle is a sizable pattered by the flattening of a crop such as wheat, barley, rye, maize, or cole. crop circles are also referred to as crop formations, because they are not always circular in shape. while the exact date crop circle began to appear is unknown, the doted cases have substantially increased from the 1970s to current times. approximately ten thousand crop circles appeared in the last 30 years of the 20th tury. y pert of those were located in southern england. many of the formations appeared he historecal remains, such as stonehenge. acc to oudy, nearly half of all circles found in the uk in 2003 were located within a 15 km（9.3 miles）radius of avebury.