题目内容
19．许多发明对我们的生活产生了很大的影响．（make a difference）Many inventions have made a difference to our life．
分析 Many inventions have made a difference to our life
解答 答案：Many inventions have made a difference to our life．
此处强调对现在的影响，所以用现在完成时．现在完成时的构成是：主语+have/has+动词的过去分词；"许多发明"是Many inventions，"对我们的生活产生了很大的影响"是make a difference to our life；故答案是Many inventions have made a difference to our life
点评 此题考查对整句话的翻译，做这类题时先分析所给汉语句子意思确定相关的词汇和句型，然后仔细推敲时态考虑人称和数的变化等容易出错的问题．
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