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第七讲 动词的时态和语态 一、动词的时态考点透析常用的动词时态句子结构。(S＝主语＝ 动词原形＝动词第三人称单数＝过去式＝现在分词＝过去分词)一般现在时：S＋do/does＋...一般过去时：S＋did... 现在进行时：S＋am/is/are doing...过去进行时：S＋was/were doing...一般将来时：S＋will/shall＋do...过去将来时：S＋should/would＋do...现在完成时：S＋have/has done...过去完成时：S＋had done...现在完成进行时：S＋have/has been doing...过去完成进行时：S＋had been doing...在时间状语从句、条件状语从句中一般现在时表示将来这1)The volleyball match will be put off if it rains. 如果下雨的话排球赛就会推迟。(2)If city noises are not kept from increasing，people will have to shout to be heard 20 years from now on. 如果不阻止城市噪音增长的话年后人们就得大喊大叫才能让人听见。一般现在时可表示主语具备的某种能1)I play pingpong quite well，but I haven't had time to play since the new year. 我的乒乓球打得不错不过自从新年后我就没时间打球了。(“会打球”是主语具备的一种能力不会短时间内消失用现在时) (2)－Can I help you我能帮你吗先生？－Yes好的我昨天在这里买了个收音机可是它不能正常工作。(doesn't work是主语的性能)过去将来时和过去完成时都是相对过去时间而存在的时态在答题时一定要仔细揣摩上下文的时间关系。如：(1)We were all surprised when he made it clear that he would_leave office soon. | 
