S: Yes. The noun "argument" comes from the verb "argue", adding "-ment". The noun "achievement" comes from the verb "achieve", adding "-ment" too. We can see "-ment" can be added to a verb to make a noun.

T: Very good. You have very keen eyes. This way to form a new word is called word formation. Here, "-ment" is called a suffix, which can be added to another word to form a new word. Do you want to know more about suffixes?

Ss: Yes.

T: OK. Today we will talk about suffixes which can make another word into a noun. We call them noun suffixes.

2. Introducing more noun suffixes.

T: Now please have a look at the screen. Here are some groups of verbs. Say their meanings, please.

(Ss say the meanings of the verbs. )

organize　　　　　 determine

discuss　　　　　　　examine

decide　　　　　　　 educate

direct T: Good. What about their nouns?Can you tell me?

Ss: (say the nouns)

organization　　　　　　　　determination

discussion　　　　　　　

direction　　　　　　　 education

decision T: What is in common among these words?

Ss: Suffix "-ion", "-tion", "-sion" or "-ation" is added to the verb to make a noun.

T: Very good. So we can see "-ion", "-tion", "-sion" and "-ation" are some of the noun suffixes. Do you know more suffixes?Can you give me some examples?

S: Let me have a try. If I feel bad, that is to say, I have a feeling which is bad. If the word means right, that is to say the word have the meaning which is right. So we can see, "-ing" is also a noun suffix.

T: (writes "feel", "feeling", "mean" and"meaning" on the blackboard and underlines "-ing")Terrific job. Are there any other nouns with " -ing"?

Ss: Warning, finding etc.

T: Who else will say something about other suffixes?

S: You teach us English. That is to say, you are our English teacher. "-er" is a noun suffix.