2019年高考英语常用3500个词汇解析：U

2019年高考英语常用3500个词汇解析：U

U

50.●undertake (undertook, undertaken) v. 承担，从事，负责;承诺

undertake the difficult task/responsibility

undertake to do He undertook to finish the job by Friday.

51. ◎unfair an unfair judge

be unfair on/to sb It’s ~ on him to make him pay for everything.

He is ~to us, isn’t he ?

52. ● unite v. 联合，团结 Carnival became a way to unite different communities.

We should unite with all the forces that can be united.

53. upon prep. 在… 上面 upon /on+ sth/doing 名词/动名词= as soon as 从句

Upon his arrival, I will telephone you.

54. ●upset a. 心烦的，苦恼的 Then the friend went away, and the writer was extremely upset.

be upset to do sth： She was upset to hear that the holiday had been cancelled.

be upset that clause： Her sister was very upset that her family had to move to California.

be upset about/over sth： My parents were in a huge argument, and I was really upset about it.

55. ●urge vt. 鼓励，激励 urge sb to do/into doing They urged me to eat the strange food.

urge that clause(should do) He urged that we should take such steps.

56. use n. 利用，用途;v. 利用 make (good/ better/full) use of sth (好好/充分)利用某物

sth be in use/ out of use 某物在被使用/ 某物不被使用

sth come into use 开始被使用 It is no use doing.干某事没用

be/get used to n/doing 习惯干某事 be used to do 被用来干某事

57. ◎useless be ~to do / be ~ doing sth

He knew it was ~ to protest It’s ~ worrying about it.

use n. 1) make use of … 2 )be of great use to sb / be of no use to sb

3) It is no use doing sth

58. usual a. 通常的 as usual 向往常一样