22. pass the exam 考试及格 fail (in) the exam 考试不及格

NOT ONE LESS

21. can’t help doing sth 情不自禁， 忍不住做某事 　can’t help do sth 不能帮忙做某事

20. owe sth to sb. = owe sb sth 把…归功于；感谢；欠(债)

WORD STUDY & GRAMMAR

19. meat-eating dinosaurs 食肉恐龙

19. in the end 最后；终于 at the end of在…末尾／尽头 by the end of 到…末为止

18. go wrong 出错；出故障；走错道 do a little wrong

17. do research (in/into...) 搞研究

16. cut／tear…into pieces 把…切／撕成碎片 　cut/tear ... into halves 把...切/撕成两半

15. come from outer space 来自外部空间

14. be afraid to do sth 不敢作某事 　　be afraid of doing sth害怕做某事 　be afraid that 担心；恐怕