题目内容

18．-I wonder if you could go to the movie with me．
-Oh，just leave me alone．I _______ a composition all the morning and haven't finished yet．（　　）
A．writeB．was writing
C．have writtenD．have been writing

分析 --我想你能否和我一起去看电影．
--哦，不要烦我．我整个早晨都在写作文，还没有写好．

解答 答案是D．本题考查现在完成进行时．现在完成进行时表示动作一直在进行，没有间断，暗示动作还在进行中；而完成时表明动作已经结束；根据语境可知，说话人还在写作文，故选D．

点评 完成进行时的解题首先要理解其时态的基本用法--动作一直在进行，没有间断，同时关注其"在进行中"的特征；然后在语境中寻找动作的时间依据进行判断．

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At first we think about human relationship．In the year 2050，we will use computers almost every day we will be making new friends through the Internet-even our husbands or wives will be met in this way．It will be much faster and easier for us．On the other hand，our relationships with people won't be as important as they are today-we will feel a little lonely．
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51．Why will people probably feel a little lonely in 2050？B
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