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1、第八讲构词法李仕才读语篇，悟语法。反复朗读下列短文，领悟画线黑体部分。思考：画线的单词有什么特点？各种前缀如何用？各种前缀表示什么意思？单词加了前缀后词性有没有变化？John and his father never agree on one thing, so they often disapprove1 of each other, for there was some misunderstanding2 between them. Once, John and his parents went to his aunts home for dinner. When they left af
2、ter dinner, John said “Byebye！” to his aunt in a low voice. However, his father didnt hear it and he thought John misbehaved3 himself for it was impolite4 to leave without saying goodbye.John insisted that he did say it, but his father didnt listen to him. From then on, John was unfriendly5 to his f
3、ather, which made his father extremely unhappy6. Undoubtedly7, it is unwise8 of John to do so. After all, they are father and son. His father sent him to a class of manners to enrich9 his knowledge of manners, which his father believed would enable10 him to be a goodmannered boy. Johns father said h
4、e was angry at his sons dishonesty11，which would certainly endanger12 his future. His fathers nonstop13 nonsense caused John much discomfort14. John had to go to the class. Later on，he did everything against his fathers will.1.dis表示“相反或否定”意义的前缀。approve赞同disapprove不赞同，反对。2 mis表示“错误或否定”意义的前缀。understan
5、d理解misunderstand误解，misunderstanding是其名词形式。3.mis表示“错误或否定”意义的前缀。behave表现得体misbehave行为不端。4.前缀im通常加在以字母p开头的形容词前，表示“不、非”的意思，polite有礼貌的impolite没礼貌的；而同是表示“不、非”的前缀il常加在以字母l开头的单词前；前缀ir则常加在以字母r开头的单词前。58.前缀un通常加在形容词或副词的前面，表示“不、非”的意思，friendly友好的unfriendly不友好的，happy开心的unhappy不开心的。910.前缀en通常加在形容词前面，表示“使”的意思，rich丰
6、富的enrich使丰富，使充实；able能够enable使能够。一般的前缀不会改变词性，但前缀en会改变所加的单词的词性。11.dis表示“相反或否定”意义的前缀。dis可以加在名词的前面，honesty诚实dishonesty不诚实。12.前缀en也可以加在名词前面，表示“使”的意思，danger危险endanger危及。13.前缀non构成形容词、副词和名词，表示“无、没有”的意思。14.dis表示“相反或否定”意义的前缀。dis可以加在名词的前面，comfort舒服discomfort不舒服。.单句填空(用所给单词的正确形式填空)1. I was supposed to arrive a
7、t the airport on time.Unfortunately (fortunate), I was held up by the heavy traffic jam.2. Therefore, when they become older they are unable(able) to do any other kind of work.3. Very early the next morning, amazingly, we got completely satisfied in a totally unexpected(expect) way.4. I wont do the
8、purchase because the price of this dress is unreasonable(reason).5. Job applicants(apply) need to show their ability to be both organized and flexible in taking on many tasks at the same time.6.All facts are the source of conclusions(conclude).7.However, most scientists(science) agree that EQ has a
9、lot to do with education(educate).8.Excellent oral and written communication(communicate) skills in Chinese and English are of importance(important).9. Fresh fruits and vegetables can provide much of our daily requirement(require).10. It is your freedom(free) to do what you want after class.11. As i
10、s known to us all, the Entrance Exam is a great competition,_and the students are competitors.(compete)12. I am so thankful(thank) to you for your help.13. He gave me some constructive(construct) suggestions.14. A jurys decision in a court case must be absolutely objective(object).15. He devoted muc
11、h money to building schools in mountainous(mountain) areas.16. Unfortunately, my car broke down on a muddy(mud) road.17. Everyone should play his part in building a harmonious(harmony) society.18. The mysterious(mystery) letter sent from Taiwan made the professor lost in thought.19. To make myself r
12、elaxed,_I would do some relaxing exercise after work. (relax)20. All the children felt discouraged when they heard the discouraging news. (discourage)21. We apologized (apology) for the late departure of this flight.22.The article can lengthen (long) out a little by adding some examples.23.His illne
13、ss worsened (worse) during the night.24.Letting that animal escape was no accident; you did it intentionally(intention).25.The black people were against slavery and fought for their freedom bravely(brave).26.Our products are sold worldwide (world).27.He went out of the office hurriedly (hurry) to ru
14、n after her.28.I lost my balance and fell backward (back).29.They live in the western(west) part of the village.30.Its very important to eat healthily(health).单句改错(下列每句中有一处错误，每处错误仅涉及一个单词的增加、删除或修改，请指出并改正。)1.A difficult person will be easier to cooperate if understand is achieved.understandunderstandi
15、ng2.The actually reasons for this phenomenon are the subject of a very heated discussion.actuallyactual3.Its surprised what people will do for money.surprisedsurprising4.When facing danger, one should keep calmly.calmlycalm5.Are you being completely honesty about your feelings？honestyhonest6.I was thrilling to be invited.thrillingthrilled7.Hopeful, well arrive before dark.HopefulHopefully8.I felt extreme upset, and I couldnt believe my mother refused to help the animal.extremeextremely9.Was she telling me the true or trying to cheat me？truetruth10.In this increasingly competitive wor
