2020考博英语词汇语法练习题及答案解析(4)

2019-07-30 18:15:51来源:网络

  考博英语词汇语法题是各博士招生院校常考题型之一,新东方在线考博频道整理了2020考博英语词汇语法练习题及答案解析供考博生们参考练习。

  1. The atmosphere ________ of certain gases mixed together in definite proportions.

  A) composes

  B) comprises

  C) consists

  D) constitutes

  2. While he was in the office he________ doing something to doing nothing.

  A) preferred

  B) liked

  C) favoured

  D) approved

  3. Metals________ when cooled and expand when heated.

  A) decrease

  B) reduce

  C) condense

  D) contract

  4. Take your raincoat with you________ it rains.

  A) by chance

  B) in case

  C) at large

  D) on occasion

  5. He was afraid he would have to________ her invitation to the party.

  A) refute

  B) refuse

  C) reject

  D) decline

  6.At the Committee last Saturday the following proposal was agreed________ by those present.

  A) to

  B) with

  C) over

  D) at

  7. We went to see the exhibition________ the storm.

  A) but for

  B) in spite of

  C) for the sake of

  D) instead of

  8.To my surprise, at yesterday’s meeting he again brought________ the plan that had been disapproved a week before.

  A) about

  B) out

  C) back

  D) up

  9. The doctor took X-rays to________ the chance of broken bones.

  A) make sure

  B) rule out

  C) break down

  D) knock out

  10. He felt it rather difficult to take a stand________ the opinion of the majority.

  A) for

  B) against

  C) to

  D) by

  11.He has behaved in the most extraordinary way recently; I can’t________ his behaving like that at all.

  A) look into

  B) break through

  C) account for

  D) get over

  12. How did it come________ that you made a lot of mistakes in your homework?

  A) about

  B) along

  C) around

  D) by

  13. He could produce no evidence________ his argument.

  A) in respect of

  B) in view of

  C) in support of

  D) on account of

  14.The government should________ with the irrational regulations restricting drinking hours.

  A) break away

  B) come up

  C) get away

  D) do away

  15. I know him well enough to accept his explanation________ .

  A) without question

  B) by all means

  C) at any cost

  D) in any case

  16. It was a small country house, but it was large________ urban standards.

  A) at

  B) for

  C) by

  D) from

  17.The travellers sought shelter________ the rain and happened to find a road-side inn.

  A) from

  B) against

  C) for

  D) with

  18. All our attempts to________ the child from drowning were in vain.

  A) regain

  B) recover

  C) reserve

  D) rescue

  19. This is the first draft of the book. Please feel perfectly free to________ it.

  A) deal with

  B) comment on

  C) cope with

  D) dwell on

  20. I was always taught that it was________ to interrupt.

  A) rude

  B) coarse

  C) rough

  D) crude

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