3 . 事实上，每个人都似乎有诸事不顺的一段时期，因此不必太担心。
Actually, everyone may go through a time ________________, so there is no need to worry so much.

6 . 众所周知，这个被称为“天眼”的500米口径巨盘用于探寻暗物质。暗物质被认为由亚原子粒子组成，一般望远镜是观测不到的。
The 500­metre dish of the “Eye of Heaven”, as it is known, is being used in the search for dark matter, ________________ subatomic particles invisible to ordinary telescopes.

7 . 例如，在中国三星堆考古遗址发掘的古蜀国神秘的巨目青铜像，古时的人们认为它们能够看到遥远的星空。
For example, the mysterious large­eyed, bronze statues of the ancient Shu Kingdom, discovered at the Chinese archeological site at Sanxingdui, ________________ great distances into the stars.

8 . 当“挑战者”号航天飞机于1986年1月28日发射时，全世界似乎已经对相关宇航员所获得的令人惊叹的成就不再感到惊奇。
When the Challenger space shuttle took off on 28 January 1986, the world ________________ the amazing achievements of the astronauts involved.

9 . In the nineteenth century, a new type of travelers stepped onto the Silk Road: archaeologists and geographers, enthusiastic explorers who were eager ________ (look) for adventure. (所给词的适当形式填空)