DNA的發(fā)現(xiàn)是近百年來最重要的發(fā)現(xiàn)之一，它已經(jīng)且將繼續(xù)影響人們的生活．請根據(jù)下列要求，寫一篇短文．內(nèi)容包括：
1．舉例說明帶來的好處；
2．舉例說明可能造成的弊端；
3．談?wù)勀愕目捶ǎ?br />注意：詞數(shù)100左右．

As we know，the discovery of DNA has been called the most important biological work of the last 100 years．（高分句型一）
  We have already experienced the benefits in many ways．To give a few examples，the police can catch the criminal by comparing DNA samples．Scientists can insert new genes into unborn babies to cure diseases．Besides，we can improve the crops and increase output，which can help avoid world food crisis．（高分句型二）
  On the other hand，if improperly used，it may bring us a lot of disadvantages．If we start choosing the gender of the baby，what might the consequences be？What‘s more，Some food，developed through this technology，may have side effects on people's health．（高分句型三）
  Genetics is a science that will continue to have an enormous influence on our lives．We should use it to make our lives better．

As we know，the discovery of DNA has been called the most important biological work of the last 100 years．（高分句型一）
  We have already experienced the benefits in many ways．To give a few examples，the police can catch the criminal by comparing DNA samples．Scientists can insert new genes into unborn babies to cure diseases．Besides，we can improve the crops and increase output，which can help avoid world food crisis．（高分句型二）
  On the other hand，if improperly used，it may bring us a lot of disadvantages．If we start choosing the gender of the baby，what might the consequences be？What‘s more，Some food，developed through this technology，may have side effects on people's health．（高分句型三）
  Genetics is a science that will continue to have an enormous influence on our lives．We should use it to make our lives better．

．