英语里许多单词稍有变化就能改变其词性，构成一个新词。比如 ：动词“decide 做决定” 可以变成名词“decision 决定” 。这些构词方式的规律你掌握了吗？

1. Which word is correct in the following sentence?
I use a dictionary to look up the _________ of new words.

a) definitions

b) define

c) defined

d) undefined

2. Which word is correct in the following sentence?
My parents always valued the importance of a good _________.

a) educated

b) educational

c) education

d) educate

3. Which word is correct in the following sentence?
At this time of year the government sends _________ to check the levels of quality in the local schools.

a) inspections

b) inspectors

c) inspects

d) inspected

4. Which word is correct in the following sentence?
I think that Alice in Wonderland is the most _________ book I have ever read.

a) imaginative

b) imagine

c) imagination

d) imaginary

5. Which word is correct in the following sentence?
Her presentation was very _________ and her boss was delighted with it.

a) impressive

b) impress

c) impression

d) unimpressive

6. Which word is correct in the following sentence?
My favourite _________ of classical music is Beethoven.

a) composition

b) composed

c) composer

d) compost

答案

1) a, 2) c, 3) b, 4) a, 5) a, 6) c.