5、計算機模型的最終目的是減少用作實驗對象的動物數(shù)量。P6
　　The eventual aim of computer modeling is to reduce the number of animals used in experiments.
　　6、現(xiàn)在已有很多別的新技術(shù)，使更多的研究能在試管里進行，以便發(fā)現(xiàn)化學(xué)藥品是否產(chǎn)生 有害的生物效果。P7
　　Many other new techniques are now available that enable more research to be done in the test tube to see if chemicals produce harmful biological effects.
　　7、用于實驗室實驗的動物數(shù)量在過去 20 年中已經(jīng)減少。P8
　　The number of animals used in laboratory tests has declined over the last 20 years.
　　8、這部分地是由于采用替代的方法，部分地是由于實驗比以前設(shè)計的更好，所以需要的動 物就少了。P8
　　This is partly due to alternatives  and partly  to the fact that experiments  are better designed so fewer need to be used.
　　9、該系的大衛(wèi)莫頓教授正在進行動物研究，他熱心于盡可能地減少動物的痛苦。P9
　　Professor David Morton of the department is involved in animal research and is concerned with reducing animal suffering as much as possible.
　　10、這包括把它們豢養(yǎng)在更符合要求的籠子里。P9
　　This includes keeping them in more suitable cages. include  后面接動名詞作賓語。
　　11、在美國，進行一次神經(jīng)再生實驗要在老鼠腿上切掉一大段神經(jīng)。P10
　　In the US,one experiment in nerve regeneration involves  cutting a big nerve in a rat’s leg .
　　12、例如當(dāng)研究心臟病和它對身體的影響時，或者當(dāng)研究大腦疾病時，我們沒有充分的代用 品來代替動物。P12
　　When it comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals. When it comes to  當(dāng)提到…的時候
　　三、習(xí)題
　　1.動物研究對人類醫(yī)學(xué)的發(fā)展做出了重大的貢獻。
　　Animal research has made great contributions to human medical development. Animal research has contributed a great deal to the development of human medicine.
　　2.動物研究是否與人體健康有關(guān)，人們持不同態(tài)度。
　　People have different ideas about whether animal research is relevant to human health.
　　3 用于實驗的動物數(shù)量在過去二十年中已大大減少了。
　　The number of animals used in experiments has declined greatly over the past 20 years.
　　研究的新成果表明，少數(shù)實驗可以放棄使用動物。
　　4.The new research findings show that a few experiments can be done w ithout using animals. The new development in research has show n that a small proportion of tests can be donew ithout using animals.
　　5.盡管醫(yī)學(xué)技術(shù)越來越先進，但完全停止使用動物做實驗仍然很遠。
　　Although  medical  techniques  are becoming  more advanced,  stopping testing  on  animals altogether is a long w ay aw ay.
　　Although medical technique becomes more and more advanced, stopping testing on animals altogether is a long w ay aw ay.
　　四、歷年試題
　　1. The number of animals used in laboratory tests __(decline) over the last 20 yea rs. (99.10)
　　答案： has declined 。 考點：本句中 over the last 20 years 是明顯的表示現(xiàn)在完成時的 時間狀語。因此本句用現(xiàn)在完成時。
　　2. To assume the care for the pets can help bring  the__ humanity in our children and even in us adults. (99.10)
　　A. about B. in C. out D. up 答案
　　答案： C �？键c： 本題主要考查詞組 bring out 表示“使顯示，顯現(xiàn)；生產(chǎn)，使產(chǎn)生”