英语构词法教学示例

2.Before your message is sent to your friend, it will be encoded in your mobile phone, when it reaches your friend’s, it will be decoded, then your friend will know what you want to say to him/her.
No. It was unbelievable.
No. It was unimaginable. No. It was unthinkable. No. It was unbearable. No. It was irreparable. Yes. It was. No. It was recoverable. The reconstruction will be quick if man lives in peace.
Homework 1. Use a prefix or suffix from the following and the word in bracket in each sentence, making any necessary change in tense or form and then fill in the blanks. in- im- mis- un- re- over- ir- dis- -en 1 Jason is so _____ (patient) that he will not wait for a bus. He always calls a taxi! 2 Warships were sent in as the crisis____ (deep) 3 He made so many errors in his homework that he will have to _____ (do) it.
Two of the transformers in the movie are called “autobot” and “automan”, how are they formed and what do they mean? They mean automated man and automated robot. Where can we see an “ATM” ? What do “AT”,”MT” stand for? What does “automobile” mean? Why?
Is the life that is lost replaceable? No. It is irreplaceable.
Can we predict our future?
Is Hale Waihona Puke Baidut predictable or unpredictable?
Can words describe the great pain he suffered? No. They can’t. It is beyond description. Can words describe the terrible scene after the war? Yes. It is much easier for us to give a very descriptive report of what we have seen.
1.Was the fact acceptable? No. It was unacceptable.
2.Was the fact believable?
3.Was the fact imaginable? 4.Was the fact thinkable? 5.Was the hit bearable? 6.Was the loss reparable? 7.Was the war destructive? 8.Was the destruction irrecoverable?
How many words have we gone over so far?
transformer, transport, transplant, transfusion, transitional, reform, reformer, deform uniform, unicycle, unify, unique, unite, unit, ICU, CPU, automobile, AT,MT，ATM, acceptable, unacceptable, believable, unbelievable, imaginable, unimaginable, thinkable, unthinkable, bear, bearable, unbearable, reparable, irreparable, recover, recoverable, irrecoverable, replace, replaceable, irreplaceable, predictable, unpredictable, prediction, destructive, destruction, reconstruction, constructive describe, description, descriptive
1. In 1973, biochemists Cohen and Boyer discovered a procedure to use enzymeschemicals formed in the body- to unzip the DNA, to cut out a sequence of genes, and finally to insert them into the host cell and combine with its DNA.
3.The software enables you to access the Internet in seconds. 4.A terrible fire deformed his face. Children are afraid to see him because of his frightening looks.
Situation 1.
Suppose now it is the year 2210 and an astronaut who has finished his mission on the Mars returns to the earth. Much to his surprise, he finds everything changed, for there was a war between man and evil robots and the city where he once lived was the battlefield. Though man won the war, everything was destroyed , no one in the city survived. How did he feel when he got the terrible news that the whole city had turned into a graveyard, and that all the other members of his family died, they rested in peace forever?
5.If we want to make sea water drinkable, we’ll have to desalt first. 6.Travelling a lot has broadened his horizons to the world and enriched his life. 7.The audience watched as the story unfolded before their eyes.
1.Could he accept the fact that the whole city had turned into a graveyard? 2.Could he believe what he had been told? 3.Could he imagine what had happened there? 4.Could he think of how terrible the city looked? 5.Could he bear the hit that all the other members rested in peace? 6.Could the loss caused by the war be reparable?
From Transformers to Word Formation
西安市第八十三中学 刘少文 2013-12-20 E-mail：779336220@QQ.com
Have you seen in the movie? What is the name of the movie？
Yes! Transformers
How many parts can you divide this word into?
Transformers
trans- form- er-s
What does “trans-” mean? What does “form” mean? More words related to “trans” and “form: trans-port, trans-plant, trans-fusion, trans-mission translation transitional government More words related to “form”: reform, deform, uniform.
Task: Look at the following sentences and try to get the meaning of the word underlined in each sentence and pay attention to how each of them is formed .
What does uniform mean? What does “uni-” mean? unique unicycle unite, unit, unity, unify, unification , ICU, CPU
You knew Automan is the hero of the robot kingdom when you were very young, didn’t you? Have you ever thought why it is called Automan? What does “auto” mean?
Situation 2 Guess the meaning of the underlined words in the following paragraph of a diary written by a survivor in an earthquake.
The moment the earthquake happened, the door of hell(地狱) was unlocked and everything fell into it. A dam 15 kilometers away from my home cracked and then burst under the weight of the water, which was like many unchained hungry lions escaping from their cages, swallowing everything on their way… I am the only one who was not carried away in the village.