2011年专四作文真题:私家车是否应该交污染税

采用了适当的衔接手法，层次清晰；作者词汇表达恰当，同时能较灵活地使用高级词汇；从句使用很不错，再接再厉。

In current situation，using animals for experimentation has become a common phenomenon in our society.As is reported，over 80% of experimentation are based on animals. The issue of whether people should experiment on animals or not has aroused considerable controversy.The supporters claim that animals used for experimentation exert irreplaceable influence，improve the rate of success and benefit the whole society.Others，however，argue that using animals for experimentation always produce unsatisfactory results，work badly as well as be recognized as a cure behavior. Weighing both merits and demerits of experimenting on animals，I insist that using animals for experimentation brings people more benefits than harms.Firstly，for all the results are often inaccurate，experimenting on animals is the only way to basic experiments in that we can’t experiment on human being.Secondly，using animals dose not mean kill them，people will try their best to protect them from deadly experiment.thirdly，we must use animals，for benefit of our own species，to test drugs，cosmetics and new developments in science which will provide a safer and better lifestyle for us. To sum up, taking into account all the relevant factors which affect and contribute to the attitude，we may safely conclude that using animals for experiments is a good way.