Pace Work. 10D. Word Building. 11.12.2020

Topic: Word formation with the help of suffixes and prefixes

Study the theory block and do the task:

Generally, we use prefixes and suffixes to make new words. 

• Word formation prefixes

A prefix is defined as a letter or group of letters that we add to the beginning of a word to form new words. Prefixes can be used to guess the meaning of words.

Below is a high-quality poster that can be printed out. The poster contains prefixes list, their meanings, and examples. Also, there is a link to an outstanding video on prefixes

Look at the words tie, retie and untie.  What do they have in common? ( prefix of tie)

They all include the word tie. So the word tie is the root word or base word. Adding a prefix changes the meaning of the root.

Adding a prefix changes the meaning of the root.

Here are lists of common prefixes and suffixes, along with their meanings and examples, that we use in word formation.

The word formation list below shows prefixes (word building prefixes)

The prefixes in-, im-, il-, ir-, un-, dis- have the same meaning. They mean ‘opposite of’ or ‘not’. When we add these prefixes to a word, they give its opposite.

• Tips/ word formation rules (Prefix rules):

• im– is used before a word beginning with ‘m’ or ‘p’ {e.g. Immature, impatient…}

  Adjectives beginning with c usually take the prefix in– {e.g.  incorrect…}

• il– is used before a word beginning with ‘l’ {e.g. illiterate, illegal…}

• ir–  is used before a word beginning with ‘r’ {e.g. irregular, irrelevant…}
  

• There are no rules for in– , un– and dis–

• 
  

• 
  

• We can also use the prefixes un– and dis– with verbs to form their opposites. (e.g. untie, unfasten, unpack, undo, unlock, undress, disagree, disappear, dislike, disqualify, disobey, disconnect etc.

  Fill in the blanks with the correct prefix. Make any necessary changes

  1. He has never been to school. He is …………literate. He can’t write and read.
  2. Male students …………..number female students in rural areas.
  3. He is so ……..……honest that nobody trusts him.
  4. My father is ……..…..partial. He does not discriminate between his children.
  5. I’m sorry to …….…….pronounce your name.
  6. Children in some African countries are ………..fed. They suffer from hunger.
  7. China is an………..…populated country. It has over a billion people.
  8. It is ……….…responsible of some students not to prepare for their exams and resort to cheating.
  9. Big cities are usually ………………..crowded.
  10. It’s ………………moral to smoke in class and expose students to danger.