四级词汇常用前缀.ppt
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Lecture One
Prefixes 四级词汇常用前缀
1.a-放词首表“一再”加强
a- amuse amaze abroad arise awake aboard Ab- absent abuse absolute abstract absorb Ac- accelerate accompany accomplish 成
Af- affirm affect afford Ag- aggress aggravate 恶化aggrandize 扩
大 agent
Al- allocate 分配 allow allowance(津贴)
An- announce
As- assist association assure assimilate ashamed assess assignment assume 假定 astonish
就accumulate 积累accustom access accept account accent accident accommodation (住处) accord（一致） accuse acquire acute (严重的）accurate acknowledge
Ad- addict advise adjust adapt adventure adopt administration adequate admire admission admit advantage advertise advocate
3.Ante- 表“前面，先”
Antedate 先于 anterior 先前的、在前的 antecedent antique ancestor antelope (羚羊) antenatal (出生前的)
1. Mr. Jiang is our ____ chairman. 2. This a very valuable ____. 3. His mother told him many ____ stories. 4. According to the research, monkeys are our
Ar- arrest arrange arrive arrow
1. I ____his bravery . 2. My parents don’t ____ of my smoking
cigarettes. 3. I want to ____ for a job. 4.Please pay ____to want a said just now. 5.He ____ a birthday party for his mother. 6.I made an____ to see a dentist tomorrow. 7.He has been ____ by the computer games.
At- attach attract attest attend attempt attain attribute 给予/奉献
Ap- appoint apply applause appreciate approve appeal appetite approach appropriate approximate
1. They have carried out some____ plans. 2. This medicine is ____. 3. As he grows up, he has acquired some____. 4. The government has made some ____policy.
is ____. 3. The little girl can ride a ____ very well.
____. 5.____are an important species on the earth.
4.Anti- 表“反对/相反”
Antiwar antipathy反感 antibacterial antibody antibiotic anticancer antichrist anticlockwise antidumping 反倾销antinuclear antioxidant 抗 氧化剂antiracism antisocial
5.Bene- 表“善/好”
Benefit beneficial benediction祝福 benefactor (恩人) beneficent(仁慈的/善行的)
1. His suggestions are ____ to us, we can get many ____ from them.
2.A-/An- 在词根前表“不/无”
Abnormal a-centric amoral apolitical asocial 缺 乏社交的Anarchism an-harmonic anechoic anonymous
1. His recent behavior has been____. 2. He wrote the letter ____. 3. This social issue is ____. 4. That country is ____now. 5. We have heard some ____ voice.
2. He来自百度文库is the greatest ____ to me. 3. She is ____ all the time.
6.Bi-表“两/两个”
Bicycle biweekly bimonthly bilingual biannual Bicentenary (200年) bicultural bicolor billion bidirectional 1. This a ____journal. 2. He has grown up in ____ environment , so he
Prefixes 四级词汇常用前缀
1.a-放词首表“一再”加强
a- amuse amaze abroad arise awake aboard Ab- absent abuse absolute abstract absorb Ac- accelerate accompany accomplish 成
Af- affirm affect afford Ag- aggress aggravate 恶化aggrandize 扩
大 agent
Al- allocate 分配 allow allowance(津贴)
An- announce
As- assist association assure assimilate ashamed assess assignment assume 假定 astonish
就accumulate 积累accustom access accept account accent accident accommodation (住处) accord（一致） accuse acquire acute (严重的）accurate acknowledge
Ad- addict advise adjust adapt adventure adopt administration adequate admire admission admit advantage advertise advocate
3.Ante- 表“前面，先”
Antedate 先于 anterior 先前的、在前的 antecedent antique ancestor antelope (羚羊) antenatal (出生前的)
1. Mr. Jiang is our ____ chairman. 2. This a very valuable ____. 3. His mother told him many ____ stories. 4. According to the research, monkeys are our
Ar- arrest arrange arrive arrow
1. I ____his bravery . 2. My parents don’t ____ of my smoking
cigarettes. 3. I want to ____ for a job. 4.Please pay ____to want a said just now. 5.He ____ a birthday party for his mother. 6.I made an____ to see a dentist tomorrow. 7.He has been ____ by the computer games.
At- attach attract attest attend attempt attain attribute 给予/奉献
Ap- appoint apply applause appreciate approve appeal appetite approach appropriate approximate
1. They have carried out some____ plans. 2. This medicine is ____. 3. As he grows up, he has acquired some____. 4. The government has made some ____policy.
is ____. 3. The little girl can ride a ____ very well.
____. 5.____are an important species on the earth.
4.Anti- 表“反对/相反”
Antiwar antipathy反感 antibacterial antibody antibiotic anticancer antichrist anticlockwise antidumping 反倾销antinuclear antioxidant 抗 氧化剂antiracism antisocial
5.Bene- 表“善/好”
Benefit beneficial benediction祝福 benefactor (恩人) beneficent(仁慈的/善行的)
1. His suggestions are ____ to us, we can get many ____ from them.
2.A-/An- 在词根前表“不/无”
Abnormal a-centric amoral apolitical asocial 缺 乏社交的Anarchism an-harmonic anechoic anonymous
1. His recent behavior has been____. 2. He wrote the letter ____. 3. This social issue is ____. 4. That country is ____now. 5. We have heard some ____ voice.
2. He来自百度文库is the greatest ____ to me. 3. She is ____ all the time.
6.Bi-表“两/两个”
Bicycle biweekly bimonthly bilingual biannual Bicentenary (200年) bicultural bicolor billion bidirectional 1. This a ____journal. 2. He has grown up in ____ environment , so he