本講為2006年下半年新的教學(xué)內(nèi)容，請(qǐng)對(duì)照教材、練習(xí)冊(cè)和語法書聽錄音！
1. Data from previous animal experiments is used to develop a computer model which will predict what will happen if you add a chemical with an unknown biological effect to a substance.
The purpose is _to increase_ (increase) the profit.
Not until
I will not begin until 8.
I will wait for you until 8.
Many other new techniques that enable more research to be done in the test tube to see if chemicals produce harmful biological effects are now available.
