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Unit 4 Do It Yourself
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The baby is not happy, he is unhappy.
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The boy is not healthy, he is unhealthy.
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The room is not tidy, it`s untidy.
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Practise选词填空: 1. Some people are ___________ ( friendly, unfriendly) to birds.
They throw stones to them. 2. Some people feel _________ (happy, unhappy) that government
give poor people such small and _____________(comfortable, uncomfortable) flats.
3. It is _______ (safe, unsafe) to walk alone on the street at night. 4. We should keep students staying away from the ________
(healthy, unhealthy) books.
unfriendly
unhappy
uncomfortable
unsafe
unhealthy
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Opposites(反义词 ) friendly
happy
comfortable
safe
healthy unhealthy
“un-”
certain
common
important
interesting uninteresting
unfriendly
unhappy
uncomfortableunsafe
uncertain
uncommonunimportant
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opposites (反义词) If someone shows good manners to others, he is a
polite person. If someone does not show good manners to
others, he is not polite.If someone does not show good manners to
others, he is_________.
polite
possible
patient impatient
“im-”
impolite
impolite
impossible
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1. This coat is very expensive. It costs 1000 yuan.
But that coat is not expensive. That is ___________
expensive
correct
active
inexpensive
“in-”
inexpensive.
incorrect
inactive
Opposites(反义词 )
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You will be_____ to pass the exam if you don’t study hard.
There are lots of _________ kinds of birds in Zhalong. It is ___________ to give our students an exam once a
week. It is wrong for many youny people to think learing
Chinese is ___________ He feels _________ because he lost his wallet. There are some mistakes in his homework, it`s
___________. It is __________ to finish so much work in such short
time.
unable
uncommon
unnecessary
unimportantunhappy
incorrectimpossible
用所给词的适当形式填空: important, happy, able, necessary, correct, possible, common
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1. un----2. im---- 3. in-----
最常用的前缀常用在以‘ m/ p’ 开头的词前常用在以‘ c’开头的词前
Do you know the negative prefixes?
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certain
important
comfortable
interesting
welcome
common
friendly
able
necessary
active
correct
possible
polite
patient
uncertain
unimportant
uncomfortable
uninteresting
unwelcome
uncommon
unfriendly
unable
unnecessary
inactive
incorrect
impossible
impolite
impatient
opposites
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头脑风暴 : Competition Each student in a group writes down the
words on the exercise books as many as possible in a minute, then check them on the blackboard. Let`s find out who does it better. (一分钟内小组中每个学生尽可能多地写下形容词的反义词,看看哪个最厉害?)
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头脑风暴 : Let's try together!
1.___possible 9. ___able 17. ___tidy2. ___polite 10. ___safe 18. ___usual3. ___patient 11. ___friendly 19. ___ certain4. ___proper 12. ___happy 20. ___comfortable5. ___correct 13. ___healthy 21. ___important6. ___active 14. ___kind 22. ___interesting7. ___direct 15. ___ lucky 23. ___necessary8. ___complete 16. ___pleasant 24. ___common
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头脑风暴 : Let's try together!
1.__im_possible 9. __un_able 17. un___tidy2. _im__polite 10. __un_safe 18. _un__usual3. _im__patient 11. _un__friendly 19. _un__ certain4. _im__proper 12. _un__happy 20. _uncomfortable5. _in_correct 13. __un_healthy 21. _un__important6. _in__active 14. _un__kind 22. _un__interesting7. _in_direct 15. _un__ lucky 23. __un_necessary8. __in_complete 16. _un__pleasant 24. __un_common
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Good job!
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乘胜追击: Exercises1 Annie : Do you spend a lot of time doing
outdoor sports? Simon: Sure. It`s usual for me to stay at
home all day.
2 Sandy: Our neighbour next door is putting something on the wall.
Mum: It`s possible to sleep with all that noise.
unusual
impossible
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乘胜追击: Exercises
3 Millie: Are you able to fix your bicycle, Andy? Andy: No. I`m certain that I can fix it myself.
4 Mum: Suzy, your room is really tidy—things are all over the floor.
Suzy: Sorry, Mum. I`ll tidy up ( 整理 )right now.
uncertain
untidy
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Activity:
Let`s act out the dialogues in pairs.
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I don’t believe what he says, because he is not honest.
I don’t believe what he says, because he is _________.dishonest
dishonest “dis-”
Adding:
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These desks are not regular. Please put these irregular desks in order.
regular irregular “ir-”
Adding:
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Homework:1.Finish off the exercises.2.Copy the new words three times.