Question

7．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．．

Answer 1

分析 本篇書面表達(dá)屬于提綱類作文，根據(jù)提示信息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，寫作時注意以下幾點：1、仔細(xì)閱讀有關(guān)提示，弄清試題提供的所有信息，要點包括：舉例說明帶來的好處；舉例說明可能造成的弊端；談?wù)勀愕目捶?、提綱是文章的總體框架，要在提綱的范圍內(nèi)進行分析、構(gòu)思和想象．要依據(jù)提示情景或詞語，按照一定邏輯關(guān)系來寫．本文寫作時可以按照要點所給的順序?qū)懀?、根據(jù)要表達(dá)的內(nèi)容確定句子的時態(tài)、語態(tài)．4．注意使用高級詞匯和句式，以增加文章的亮點．
【亮點說明】本文結(jié)構(gòu)緊湊，層次分明，而且使用了多種表達(dá)：As we know眾所周知；Besides，另外；On the other hand另一方面；What‘s more而且；have side effects on對…由副作用；
  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）
Besides，we can improve the crops and increase output，which can help avoid world food crisis．（高分句型二）
What‘s more，Some food，developed through this technology，may have side effects on people's health．（高分句型三）

解答 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．

點評 英語寫作是一項主觀性較強的測試題．它不僅考查學(xué)生的寫作基礎(chǔ)而且還考查學(xué)生在寫作過程中綜合運用語言的能力．在撰寫時要注意主謂語一致，時態(tài)呼應(yīng)，用詞貼切等．要提高英語寫作水平，需要兩方面的訓(xùn)練：一是語言基礎(chǔ)方面的訓(xùn)練，要有扎實的造句、翻譯等基本功，即用詞法、句法等知識造出正確無誤的句子；二是寫作知識和能力 方面的訓(xùn)練以掌握寫作方面的基本方法和技巧．