Welcome to the unit & Reading
1. 无法解释的传说，未解之谜 tales of the unexplained
2. 充满神秘 full of mysteries
3. 先进的科技 advanced science and technology
4. 偶遇 run into/come across/meet by chance
5. 相信未解之谜 believe in unexplained things
6. 某天(将来的) some day
7. 做某事的理由 reason for doing sth
8. 提前 in advance
9. 加紧，促进 step up
10. 寻找某人 search for sb
11. 失踪 go missing
12. 对……表现出极大的兴趣 show (a) great interest in
13. 由于 due to/because of
14. 看见/目睹令人迷惑的光亮 sightings of puzzling lights
15. 因为头疼 because of a headache
16. 回家很晚 stay out late
17. 出现；显露 show up
18. 径直走到 go straight to
19. 播放音乐 put on music
20. 根据，依据 according to
21. 拉开窗帘 pull back the curtains
22. 感到害怕 feel/be frightened
23. 排除可能性 rule out the possibility 
24. 负责这个案件 take charge of the case
25. 令人信服的证据 convincing  evidence
26. 调查 look into
27. 放弃 give up
28. 取得巨大进步 make much /great progress
29. 对……感到失望 be disappointed with
30. 在某人身上做研究 do research on
31. 发生在某人身上 happen to sb
32. 失踪的男孩 a missing boy
33. 准备睡觉 be ready for bed
34. 做……噩梦 have nightmares about
35. 带走 take  away
36. 编故事 make up a  story
37. 做报告 make a speech
38. 外太空 outer space
39. 以/从……开始 begin/start with
40. 以……为结束 close with/end up with
Word power
41. 发射到太空 launch into space 
42. 没有生命的证据 no evidence of life
43. 目前 so far
44. 梦想；向往；渴望 dream of
45. 实行；执行；进行；完成；实现 carry out
46. 实现 come true
47. 分离出来 separate from
48. 接收，拾起，学会 pick sth.up；
49. 抱起，搭载某人 pick sb.up
50. 太空行走 take a space walk (take a walk in space )