雅思必备词汇：前缀和后缀（1）

　　PREFIX

　　1.a-:of;on;intensive;negative,not,without;ad-;ab-.

　　2.ab-:away from,off.

　　3. ad-:to;at;for.

　　4. aer- :relating to air .

　　5.al-:all.

　　6.ambi-:on both sides,around.

　　7.amphi-:on both sides,around.

　　8.an-:negative,not,without.

　　9.ana-:upon,up,on.

　　10.ante-:before.

　　11.anti-:against.

　　12.arch-:chief,first .

　　13.astro- :relating to stars .

　　14.aqu-:relating to water.

　　15.audi -:relating to sound and hearing .

　　16.auto-:self,without help .

　　17.be-:to make;to cover with;upon;by;intensive.

　　18.bene-:well,good.

　　19.bi-:double,two.

　　20.bio- :relating to life and living things .