Step 1 Compare the following two groups of words:
which part of speech is each word ?
Think about the similarities and differences between the two groups.
All the words are nouns, but words in Group1 refer to physical things and those in
Group2 refer to ideas, actions, and qualities. The nouns in
Group2 are called abstract nouns, and we always use them to say something we can not see
or touch directly.
Change the following words into nouns by adding suffixes.
1.produce 9.decide
2.please 10.patient
3.necessary 11.real
4.safe 12.happy
5.important 13.refer
6.enjoy 14.admire
7.fail 15.read
