高中情态动词用法总结.ppt

考点诠释：考点一、情态动词基本含义的考查 1. The fire spread through the hotel very quickly but everyone______get out. A. had to B. would C. was able to D. could 解析：考查情态动词的基本含义。had to：不得不； would：表示意愿或过去常常；could倾向于表示经过长期训练而获得的能力；was able to 表示经过努力而能够做到的事或成功地做了某事。因此，答案是C。 考点诠释 2. When can I come for the photos? I need them tomorrow afternoon. —They______be ready by 12:00. A. can B. should C. might D. need 解析：can：能够；should:应该，表示责任、义务。Might：可能；need：需要。它们应该在12点前准备好。所以，答案是B。 考点诠释 3. You can’t imagine that a well-behaved gentleman______be so rude to a lady . A. might B. need C. should D. would 解析：should 表示说话人感情，如惊奇、愤怒、失 望等。在此句中表示说话人一种惊奇的语气。 句意为： 你不可能想象出体面的绅士竟然对一位女士那么粗 鲁。答案是 C。 分析：高考对情态动词基本含义的考查，仍然集中在常 用的情态动词上。对常用情态动词的含义，要掌握的既 准确又要全面，特别是shall, should, can, may 四个常用情态动词 的含义较多，不易理解，复习时应当引起重视。 二、情态动词表示推测的考查 对情态动词表示推测的用法，是高考考查情态动词的一个重要方面。例如： 1. Sorry, I’m late. I ______ have turned off the alarm clock and gone back to sleep again . A. might B. should C. can D. will 解析：might have done : (过去)可能做过某事； should have done :本应该做某事。根据本句提 供的情境I’m late 表明说话人可能把闹钟关上了 。答案是：A。 考点诠释 2. My sister met him at the Grand Theatre yesterday afternoon, so he ______your lecture. A. couldn’t have attended B. needn’t have attended C. mustn’t have attended D. shouldn’t have attended 解析：couldn’t have done: (过去)不可能做某事； needn’t have done:本来不必做某事；mustn’t have done:一定未做过某事： shouldn’t have done:本不该做某事。根据提供的情境My sister met him at the Great Theatre表明他不可能参加讲座。答案是：A。 考点诠释 3. Mr Bush is on time for everything. How ______it be that he was late for the opening ceremony? A. can B. should C. may D. must 解析：can表示可能性。布什先生按时做一切事. 他怎么可能开幕式迟到呢？答案是：A。 4.I heard they went skiing in the mountains last winter? —It ______true because there was little snow there. A. may not be B. won’t be C. couldn’t be D. mustn’t be 解析：may not be: 可能不是; won’t be: 不会是; couldn’t be：不可能是; mustn’t be : 一定不是。 根据提供情境there was little snow 说明山里滑雪 是件不可能的事，may not 语气不如couldn’t