江蘇省永豐初級中學(xué)八年級英語上冊 Unit 4 Do it yourself Study skills課件 （新版）牛津版

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1、Look and find the rule.certainuncertaincomfortable uncomfortableimportantunimportantinterestinguninterestingun- +adjective Prefix (前綴前綴): a prefix is a group of letters that we add to the front of a word to form a new word. One of the common prefixes is un -. It means “not”.Can you think of more wor

2、ds starting with un-?ablefriendlyhappyhealthyluckyusualkindtidy.unfriendlyunableunhappyunhealthyunluckyunusualunkinduntidyWe can also use some other prefixes such as in- and im-, to form new words with opposite meaning.activeinactivecorrectincorrectpatientimpatientpossibleimpossiblepoliteimpolite.Fi

3、nd out more We have prefixes and we also have suffixes, such as ful and less. The suffixes changes a word into adjective and less means “not”.helphelpfulhelplessuseusefuluselesshopehopefulhopelesscarecarefulcareless.Add the correct prefixes to some of the adjectives so that the sentences make sense.

4、 1. Annie: Do you spend a lot of time doing outdoor sports? Simon: Sure. Its usual for me to stay at home all day.2. Sandy: Our neighbour next door is putting something on the wall. Mum: Its possible to sleep with all that noise.unusualimpossible3. Mille: Are you able to fix your bicycle, Andy? Andy

5、: No. Im certain that I can fix it myself.4. Mum: Suzy, your room is really tidy -things are all over the floor. Suzy: Sorry, Mum. Ill tidy up right now.untidyuncertainExercises1. Dont be _. He is only five years old. (patient)2. Its _ for him to be rude. He is always polite. (usual)3. Nicks room is

6、 really _. His mother is angry with him. (tidy)4. Its very hot today. I feel _.(comfortable)impatientunusualuntidyuncomfortable5. The book is _. I will never read it again. (interest)6. The dog was really _ to me. It barked at me all the time. (friendly)uninterestingunfriendly1. Find out more affixes you know.2. Preview next part in the unit.