新人教版选修7-5.ppt

2．—I’ll have to clean our classroom this afternoon. —But I________it. A．have cleaned B．have been cleaning C．cleaned D．am cleaning 【解析】　此句用现在完成时表示“我已打扫了教室”，动作已经完成。 【答案】　A 3．I________for three hours when I suddenly became sick. A．had been working B．would work C．have worked D．am working 【解析】　句意为：我一直工作了三个小时，这时我突然觉得不舒服。此处要用过去完成进行时表示到过去某个时间为止一直持续的状态。 【答案】　A 4．—Why do you look so tired? —I________a report on how to ensure the safety of miners. A．writing B．have been writing C．have written D．had written 【解析】　此句中要用现在完成进行时表示刚刚结束的状态。 【答案】　B 5．—Well，that was really a good meal.I________you were a really good cook. —Thank you. A．didn’t know B．don’t know C．haven’t known D．hadn’t known 【解析】　“不知道”是对话之前的动作，表示过去。句意为：那顿饭真不错。我以前不知道(现在知道了)你的确是位好厨师。 【答案】　A Ⅳ.语法专练 本单元语法—定语从句 1．(2009年北京市东城区高三教学目标检测)A huge amount of oil was spilt on the road，the effects of________are still being left. A．it B．that C．which D．whom 【解析】　考查定语从句。所填词引导非限制性定语从句，在从句中作介词of的宾语，先行词是整个主句，应该用which。 【答案】　C 2．(2009年南通市高三第一次调研测试)She may have missed the train，________she won’t arrive for another hour. A．in which case B．in her case C．in any case D．in that case 【解析】　考查定语从句。这是一个非限制性定语从句，所以要用in which case。 【答案】　A 3．The position，however，________you are applying，is not quite a well-paid one. A．that B．which C．for which D．to which 【解析】　考查定语从句。语境：然而，你申请的这个职位薪俸并不算(十分)优厚。however作为插入成分，容易使考生出错。其实，本句可拆分为“You are applying for the position.”和“The position is not quite a well-paid one.”两个句子，故关系代词which作apply for的宾语。 【答案】　C 4．Bill Gates has created a wonderful “window” ________people can surf the Internet freely. A．that B．which C．where D．when 【解析】　考查定语从句中关系代词和关系副词的辨析。先行词为a wonderful “window”，连接词在从句中作地点状语，因此应用关系副词where。 【答案】　C 5．(2009年南京市高三年级质量调研)Bungee jumping is an adventurous sport，popular with young adults，________courage matters more than strength. A．whose B．that C．of which D．where 【解析】　本题考查非限制性定语从句。后半部分的正常语序是“courage matters more than strength in the sport”。 【答案】　D