牛津高中英语-模块五-unit3-word-power (2).ppt

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1、牛津高中英牛津高中英语-模模块五五-unit3-word-power-I _ it but I like playing football.1.-I like playing basketball?How about you?(It is _ to live in.)2.The room is big and clean.So can you find a word to describe(描述）描述）it?3.I want to go fishing on Sunday.Do you agree with me？Im busy,so I_with you.)Do you want to en

2、large your vocabulary?Do you want to enlarge your vocabulary easily?independence independencePrefix 前缀Root 词根Suffix 后缀Prefix:a letter or a group of letters that is added to the beginning of a word to change its meaning.前缀改变词义前缀改变词义Suffix:a letter or a group of letters that is added to the end of a w

3、ord to make a different word.后缀改变后缀改变词性词性nvFind the suitable prefix and suffix according to the meaning Prefix Example Meaninganti-smoking disappear incorrectillegalimmoralirresponsible anti-dis-in-il-im-ir-反，抗反，抗不，非不，非不，没有不，没有Prefix Example Meaningpreviewreconsideruncertainpre-re-un-预先，在预先，在.之前之前重新

4、，再重新，再不，非不，非Suffix ExampleMeaningcomfortable能够能够.的的cheerful充满充满.的的scientist做某事的人做某事的人hopeless没有没有agreement表示状态或条件（名词后表示状态或条件（名词后缀）缀）dryness表示品质表示品质,状态或特征（名状态或特征（名词后缀）词后缀）-able-ful-ist-less-ment-nessSuffix Examplepressure名词后缀名词后缀preference名词后缀名词后缀performance名词后缀名词后缀movement名词后缀名词后缀discussion名词后缀名词后缀i

5、nformation名词后缀名词后缀-ure-ance-ment-ion-ation-enceSometimes you can guess what a word means by looking at its prefix or suffix.Look at the following words and work out the meanings.Play a gameThe rule of the game:Whoever stands up quickly will get the chance to answer one question.最快站立的学生获得答题机会。最快站立的学生

6、获得答题机会。答题思路：答题思路：prefix suffixfix安装安装 fix安装安装pre-预先预先,在在.之前之前 suf-在在.之后之后prefix前缀前缀 suffix后缀后缀anti-Japanese1.2.anti-cloning3.dislike抗日的抗日的反对克隆反对克隆不喜欢不喜欢4.impossible 不可能的不可能的impolite5.不礼貌的不礼貌的6.incorrect 不正确的不正确的Group Oneindependent7.独立的独立的8.illegal 非法的非法的Group Twoillogical9.不合逻辑的不合逻辑的unimportant10.i

7、rregular不重要的不重要的不规则的不规则的12.unhappy不快乐的不快乐的fortable预付预付重读重读舒适的舒适的16.suitable 合适的合适的Group Threeartist17.homeless无家可归的无家可归的18.艺术家艺术家careless19.粗心的粗心的20.thankful 满怀感激的满怀感激的Group Four21.government政府政府22.illness疾病疾病23.hopeful满怀希望的满怀希望的24.rename重命名重命名25 kindness仁慈仁慈 好意好意summarysummaryPrefix:Suffix:anti-dis

8、-in-il-im-ir-un-pre-less-able-fulre-ness表否定的后缀表否定的后缀形容词后缀形容词后缀表否定的前缀表否定的前缀预先预先,在在.之之前前重新重新,再再名词后缀名词后缀-ment-ist反，抗反，抗不，非不，非不，没有不，没有不，非不，非不，没有不，没有能够能够.的的充满充满.的的-ure-ence -ance-ion-ationSome other prefixes that are used widely in English.Prefix Example auto-down-ever-automaker automobiledownhill downst

9、airs downwards everlasting evergreen evermore Prefix Example half-hand-over-halfway,half-baked,half-payhand-made,hand-picked,overeat,oversleep,overwork Suffixes that are commonly used are as follows.suffix Example-al cultural,national,original-ent different,dependent,existent-ian Canadian,African,As

10、ian,suffix Example-likechildlike,dreamlike,lifelike-proof waterproof,soundproof,bulletproof-enwiden,sharpen,shorten Add the suitable prefix and suffix1.我不喜欢粗心且没礼貌的学生。我不喜欢粗心且没礼貌的学生。I _like the care_and_polite students2.我们的政府对那些反对克隆的人满怀感激。我们的政府对那些反对克隆的人满怀感激。Our govern_is thank_to those _-cloning peopl

11、e.3.我不认为这前缀又不规则又不重要。我不认为这前缀又不规则又不重要。I dont think the _fix is_regular and_important.4.这位科学家由于他生病了没找到合适的基因这位科学家由于他生病了没找到合适的基因The scient_didnt find suit_ gene because of his ill 5.尽管这些句子不合逻辑但并不是不正确，所以我尽管这些句子不合逻辑但并不是不正确，所以我们必须再读他们们必须再读他们The sentences are_logical but not _correct,so we must _read them.di

12、slessimmentfulantipreirunistableilinre_nessI am strongly against cloning humans.I think it is _(responsible)for us to do that.People who want to clone human beings show their _(respect)for nature.They are hardly aware of the _(harm)effects of cloning humans.It is _(certain)what a cloned human being

13、would be like.It could turn out to be a monster!In my opinion,tight laws should be put in place to make cloning human beings _(legal).Use the correct form of the wordsirresponsibledisrespectharmfuluncertainillegal1.完成完成系统集成系统集成word power练习。练习。2.Try to remember as many words and expressions about prefixes and suffixes.谢谢观赏谢谢观赏