2019 考博英语词汇 语法题练习附答案解析（6）

考博英语 词汇语法题是各博士招生院校常考题型之一，考博信息网|http://www.kaoboinfo.com教育考博频道整理了考博英语词汇语法题练习供考博生们参考练习。

41.Millions of tons of water are________ by a complex system of dykes.

A) held up

B) held on

C) held out

D) held back

42.When travelling, you are advised to take travellers’ checks, which provide a secure________ to carrying your money in cash.

A) substitute

B) replacement

C) preference

D) alternative

43.Don’t poke your nose into what doesn’t________ you.

A) connect

B) relate

C) concern

D) interest

44.The discussion was so prolonged and exhausting that________ the speakers stopped for refreshments.

A) at large

B) at intervals

C) at random

D) at length

45.Dozens of scientific groups all over the world have been________ the goal of a practical and economic way to use sunlight to split water molecules.

A) pursuing

B) chasing

C) attaining

D) reaching

46.He does not________ as a teacher of English as his pronunciation is terrible.

A) equal

B) qualify

C) match

D) fit

47.

China started its nuclear power industry only in recent years and should________ no time in catching up.

A) delay

B) lessen

C) lose

D) slip

48.I was speaking to Ann on the phone when suddenly we were________ .

A) cut off

B) cut down

C) cut back

D) cut out

49.The State’s Department of Commerce in the U.S. is________ to our Bureau of Economic Development.

A) alike

B) equivalent

C) same

D) approximate

50.It’s usually the case that people seldom behave in a________ way when in a furious state.

A) responsible

B) reliable

C) rational

D) conscious

51.Scientists are working hard to come up with a sure solution to the food________ for mankind.

A) decline

B) rarity

C) scarcity

D) shortage

52.I left for the office earlier than usual this morning________ traffic jam.

A) for the sake of

B) in case of

C) at the risk of

D) in spite of

53.The manager didn’t have time to go into his plan________ ,but he gave us an idea about it.

A) in turn

B) in conclusion

C) at first

D) at length

54.Your improper words will give________ to doubts concerning your true intentions.

A) rise

B) reason

C) suspicion

D) ground

55.The new washing machines are being________ at the rate of 50 a day in this factory.

A) turned off

B) turned down

C) turned out

D) turned in

56.John complained to the bookseller that there were some pages________ in the dictionary.

A) losing

B) missing

C) dropping

D) falling

57.On turning round the corner we saw the road________ steeply.

A) falling

B) decreasing

C) descending

D) lowering

58.The mother said she would________ her son washing the dishes if he could finish his assignment before supper.

A) let down

B) let alone

C) let off

D) let out

59.The managing director took the________ for the accident, although it was not really his fault.

A) guilt

B) blame

C) charge

D) accusation

60.In spite of the wide range of reading material specially written or________ for language learning purposes, there is yet no comprehensive systematic program for the reading skills.

A) adapted

B) acknowledged

C) assembled

D) appointed