以下就是希赛网考博英语频道为大家整理的考博英语词汇语法练习，希望大家多多练习，提高英语综合能力。
1.Grace________ tears when she heard that her husband had been injured in an accident.
A) broke in
B) broke off
C) broke into
D) broke out
2.She refused to________ the car keys to her husband until he had promised to wear his safety belt.
A) hand in
B) hand out
C) hand down
D) hand over
3.Michael found it difficult to get his British jokes________ to American audiences.
A) around
B) on
C) across
D) down
4.Jack is________ about his chances of winning a gold medal at the Olympics next year.
A) optimistic
B) optional
C) obvious
D) outstanding
5.Nowadays advertising costs are no longer in reasonable________ to the total cost of the product.
A) proportion
B) correlation
C) connection
D) correspondence
6.When she saw the clouds she went back to the house to________ her umbrella.
A) carry
B) fetch
C) bring
D) reach
7.We must________ that the experiment is controlled as rigidly as possible.
A) assure
B) secure
C) ensure
D) issue
8.He was knocked down by a car and badly________ .
A) injured
B) damaged
C) harmed
D) wounded
9.Tropical diseases are comparatively________ in Britain.
A) scarce
B) minor
C) slight
D) rare
10.You must obtain________ from the authorities to fish in this river.
A) permit
B) permission
C) right
D) freedom
[答案]
1-5：CDCAA
6-10：BCADB
