1. hampering=restrictingv约束，牵制
2. hamstring n=v. 使残废，切断腿筋
3. handle=manager
4. haphazardly=carelessly
5. harbor=shelter
6. harmful=unhealthy
7. harness,?
8. harsh=drastic
9. hasten,?
10. haul=pull
11. hazard=danger
12. hearten=encourage
13. heed=notice(heed n.注意, 留意 v.注意, 留意)
14. heighten=increase
15. heighten=intensify
16. heightening=increasing
17. hence
18. heroes=idols
19. hiatus=interruption名 裂缝;脱落;
20. hider=interfere(笔试：hide = conceal)
21. highlight=layer=inner
22. hold=keep up
23. hold=propose
24. hollow
25. host=great number, a (host) of trades began to …
26. host=large number
27. host n=vt.当主人招待)
28. host of=large number of=高频 adv许多，一大群
29. host=many
30. hub=center(Hub 中心)
31. hue=color
32. hydroelectric=adj.水力 发电的 )
I
33. identify=clarify
34. illusion=n.幻想?
35. imbue=enhance
36. immediately=closest(说类人猿是人类最近的进化祖先)
37. immense adj.极广大的, 无边的, <口>非常好的
38. impair===? 动 害;损害;损伤;减弱;减少
39. impede=obstructv阻止，阻隔
40. impetus=stimulus
41. implicated=indicated
42. imposing---- 使人难忘的
43. impulsive=capricious
44. in and of themselves=alone
45. in charge of=responsible for
46. in earnest=seriously
47. in essence=basicallyadv本质上，大体上
48. in fact
49. in its own right=independent凭本身的头衔
50. in keeping with=consist with== jibe with