2015-2016学年高一英语人教版必修四课件：UNIT5 4-GRAMMAR .ppt

1、Discovering useful structuresroller coaster,whichever,whatever,free-fall,wherever,southeastern,indoor,outdoor,craftsmen,old-fashioned,steam-engine,world-famous,horsebackRead the compound words from the reading passage.英语构词法(Word Formation)英语一些常用的构词法:1.合成(Compounding)2.转化(Conversion)3.派生(Derivation)1

2、.合成(Compounding)由两个或更多的词合成一个词,有的用连字符号”-”连接,有的直接连写 在一起.wood(木)cut(刻)woodcut(木刻)man(人)kind(种类)mankind(人类)air(空气，空中)sick(恶心的，晕的)airsick(晕机的)merry-go-round 旋转木马up-to-date 最新的life-size 与真人一般大2.转化(Conversion)由一种词类转换成另一种词类。（即一般拼写不变，但是词类发生了变化，有时发音也变化）water n.水-water v.浇水dirty adj.脏的-dirty v.弄脏He went in and

3、 sat down.The army downed a plane.3.派生(Derivation)由一个词根加上前缀或后缀构成另一个词。1)后缀(suffix)名词后缀-or actor sailor -ist scientist -ment achievement movement -(a)tion preparation exception -y difficulty discovery形容词后缀-ful useful cheerful-able comfortable enjoyable-ed manned cultured-less careless fearless-ive act

4、ive decisive-an European Indian动词后缀-ize realize modernize-en widen strengthen副词后缀-ly really extremely-ward backward eastward数词后缀-teen fourteen fifteen-ty forty fifty-th ninth twelfth2)前缀(prefix)一般不造成词类的转变，只是引起意思的变化。un-(不,或做相反动作)unhappy undo im-(不)impossible impolite re-(重新)retell rewrite mis-(错误的)mi

5、sunderstand 个别前缀会引起词类的变化en-endanger enlarge a-asleep awake1.We shall carpet the room.2.A group of policemen were stationed in the area after the explosion.3.The car backed through the gate of the hall.4.They decided to back his plan.5.It was late at night that they topped the high mountain.6.I canno

6、t really picture such a kind man as a murderer.（v.铺地毯）（v.驻扎）（v.倒退、倒车）(v.支持)（v.登顶、到达）（v.想象）一、说出标颜色单词的词性及意义。7.They had to clear the snow from the street.8.That African country has been freed from economic crisis.9.Tian An Men Square is frequented by people from all walks of life.10.You have wronged hi

7、m by saying that he was dishonest.（v.清扫）（v.解脱、恢复）（v.经常参观、光顾）（v.冤枉）1.The pilot always had a sense of _.He explained what had happened in a _ manner to make passengers feel better.(humorous;humor)2.I _ cant understand the _ French he spoke.(simple;simply)3.The work is important but rather boring.It ne

8、eds _,so you must be very _.(patient;patience)二、根据句义选择正确的单词填空。humorhumoroussimplysimplepatiencepatient1.That man was _ enough not to tell the manager that he would not do the job.A.careB.carefulC.carelessD.carelessness2.The soldier died for saving the child,so his _ is heavier than Mount Tai.A.die B

9、.dead C.died D.death3.The child looked _ at his brother who was badly wounded.A.sadly B.sadness C.sadless D.sadBDA三、选择正确答案。4.The three _ chair isnt suitable for a young child.He may fall off.A.legging B.legged C.legs D.leged5.Stephenson became the _ railway engineer in the world.A.lead B.leader C.le

10、ading D.leadership6.When the teacher praised him for working out the maths problem,Jack looked _ about at his classmates.A.proud B.proudly C.pride D.pridelyBCB7.To everyones _,the girl finished the job quite well.A.surprised B.surprise C.surprising D.surpriser8.He is an expert at physics.We all call

11、 him a _.A.physics B.physical C.physicist D.physicianBC9.What are you doing here?Oh,my teacher asked me to write a passage about _ in English.You can write _ passage in English?A.600 words；a 600-wordsB.600-word；a 600-words C.600 words；a 600-wordD.600 words；a 600-wordsCHomework1.Finish the exercises in Discovering useful structures.2.Finish the exercises in Using structures in Workbook.