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1、关于派生构词法及应用第一页，讲稿共二十六页哦 复习构词法之一复习构词法之一派生，了解前缀派生，了解前缀和后缀的作用和后缀的作用 学习常见的前缀和后缀学习常见的前缀和后缀 应用：语法填空应用：语法填空 阅读理解中猜词义阅读理解中猜词义学习目标学习目标第二页，讲稿共二十六页哦able_反反adv.vt.反反adj._第三页，讲稿共二十六页哦Lead-inableunableablyenabledisable反反adv.vt.反反adj.disabled派生法：由词缀（分前、后缀）和词根相派生法：由词缀（分前、后缀）和词根相结合构成结合构成新新单词的方法。单词的方法。第四页，讲稿共二十六页哦加前缀：
2、加前缀：happy unhappy 加后缀：加后缀：develop development既加前缀又加后缀：既加前缀又加后缀：forget unforgetable派生词派生词 第五页，讲稿共二十六页哦前缀前缀表否定：表否定：dis-,in-,im-,ir-,il-,un-,non-dislike incorrect impolite irregular illegal unlike non-stop over-：超过，超出：超过，超出 overweight overwork oversleep第六页，讲稿共二十六页哦mis-：错误：错误 misunderstand misdore-：再，又：
3、再，又 rewrite reuse pre-：先于：先于.preview prepayfore-：前：前,预先预先 forehead forecast第七页，讲稿共二十六页哦后缀后缀1.名词后缀：名词后缀：表人：表人：-er,-or,-ist worker actor artistadj.n.:-ness sadness darknessv.n.:-t/-te -tion actaction inventinventionv.n.:-ment development movement第八页，讲稿共二十六页哦2.形容词形容词后缀：后缀：-ful：充满：充满.的的 careful harmful-
4、less:缺少缺少.的的 careless harmless -ive：有：有.倾向的倾向的 effective attractive-able：可以：可以/能够能够.的的 buyable enjoyable第九页，讲稿共二十六页哦-ed：(人人)感到感到.的的 annoyed 表被动表被动 written words 表完成表完成 boiled water-ing：令人：令人.的的 annoying 表主动表主动 the dancing girl 表进行中表进行中 boiling water第十页，讲稿共二十六页哦3.副词副词后后缀：缀：-ly:quickly equallyPS：并非全部：
5、并非全部-ly结尾的词都是副词：结尾的词都是副词：lovely 可爱的可爱的 friendly 友善的友善的 likely 可能的可能的 lonely 孤独的孤独的4.动词后缀动词后缀-en：使使.deepdeepen widewiden有时有时en-：enable enlarge enrich第十一页，讲稿共二十六页哦思考：前缀和后缀分别改变的原词的什思考：前缀和后缀分别改变的原词的什么？么？possible impossible invent invention 前缀前缀 后缀后缀 词性词性 意思意思第十二页，讲稿共二十六页哦Task 1 value v._ 有价值的有价值的 entert
6、ain v._ n.likely adj.反义：反义：_ read v._ 误读误读 appear v._ 消失消失 joy n._ adj.broad adj._ vt.拓宽，拓展拓宽，拓展 help n._ adj.无助的无助的valuable-mentun-dis-mis-fulen-lessadj.娱乐娱乐adj.不可能的不可能的v.v.快乐的，高兴的快乐的，高兴的第十三页，讲稿共二十六页哦Task 2分析画线词的词性和词义。分析画线词的词性和词义。This possibility was unforeseeable，because it almos tnever happened.u
7、nforeseeable un fore see able 不不预先预先看见看见可以可以的的adj.不可预见的不可预见的方法方法:拆分单词拆分单词第十四页，讲稿共二十六页哦常见常见的猜词义的猜词义题目题目:1.The underlined word XXX means/refers to/stands for _.2.The word XXX can be replaced by“_”.3.Whats the meaning of XXX?4.Which of the following is the closest in meaning to XXX?第十五页，讲稿共二十六页哦1.Remem
8、ber that People on line may not be who they seem.Because you cant see or even hear the person.It would be easy for someone to misrepresent himself or herself.Thus someone who says that she is a 12-year-old girl.could really be an old man.A.make a wrong judgement(判断判断)about B.understand somebody wron
9、gly C.give a wrong description(描写描写)of D.form a wrong opinion about Task 3mis-错误错误 represent vt.陈陈/描述描述第十六页，讲稿共二十六页哦2.Dont listen to his nonsense.A.meaningless words B.beautiful words C.meaningful words D.unpleasant words3.He lived a hard life in pre-liberation days.A.before liberation B.after liber
10、ation C.since liberation D.during liberation non-:非，无非，无sense n.意义意义pre-:在在.之前之前liberation n.解放解放第十七页，讲稿共二十六页哦4.Shops are very overcrowded now.A.busy with much work B.having too many people C.full of energy D.too complicated to understand5.He was performing and his technique was unbelievable.A.can b
11、e trusted B.very exciting C.very attractive D.difficult to believe;very goodun-表否定表否定believe v.相信相信-able adj.能能.的的over-过度过度crowd v.拥挤拥挤-ed adj.第十八页，讲稿共二十六页哦Task 4 运用所学知识，完成语法填空练习。运用所学知识，完成语法填空练习。解题方法：解题方法：1、阅读全句，正确理解句义及所缺词、阅读全句，正确理解句义及所缺词词词义义。2、分析缺词担任的、分析缺词担任的句子成分句子成分，正确判，正确判断断词性词性。(如动词、名词等如动词、名词等)3
12、、判断缺词应采用的正确、判断缺词应采用的正确词形词形。(如动词如动词的形式、名词的单复数等的形式、名词的单复数等)第十九页，讲稿共二十六页哦 Without proper planning,tourism can cause problems.For example,too many _(tour)can crowd public places,which are not so _(enjoy)for people living there.If tourism creates too much traffic,people there will become _(annoy)and unha
13、ppy.They begin to _(like)tourists and to treat them _(politely).They forget how _(help)tourism can be to the countrys economy.-ed-ableimpolitely-istsdis-ful第二十页，讲稿共二十六页哦 It is important to think about how tourism affects the people of a destination(目的地目的地)country.The _(develop)of tourism is quite be
14、neficial,since it can help a country keep the customs and beauty that are _(attract)to tourists.It will also advance the wealth and _(happy)of local people.Too much tourism can be a problem.If tourism grows too _(quick),people must leave other jobs to work in the tourism industry.This means that oth
15、er parts of the countrys economy can suffer.-ment-ivehappiness-ly第二十一页，讲稿共二十六页哦Exercise on the paper.Exercise on P28,Workbook.Homework第二十二页，讲稿共二十六页哦第二十三页，讲稿共二十六页哦Youth is a kind of wealth.It will gradually _(appear)with time elapsing(流逝流逝).What can we do is not to waste the youth.In my opinion,for o
16、ne thing,it is to realize our value,our idea.When we are young,we have the best conditions in our lives,good memories,good _(understand)and so on.We should make full use of these conditions to study more.For aother,we should _(rich)our lives,make them _(color)and and gather as many different experie
17、nces as possible.1dis-ingsen-ful第二十四页，讲稿共二十六页哦 Teenagers secrets should be kept to themselves,and no one else,including their parents,has the right to stick their noses into the childrens private life.As we know,teenagers are going through a special period of _(develop)both physically and _(psycholo
18、gical).They are curious about and puzzled by the _(expect)changes in their body and mind.Whats more,exposed to a world of adults,it is only too _(nature)for them to begin imitating adults behavior in secret.Boys begin to smoke and girls begin to spend time doing their hair.2unexcepted-ment-lynatural第二十五页，讲稿共二十六页哦感谢大家观看感谢大家观看第二十六页，讲稿共二十六页哦