现在进行时的结构.docxVIP

现在进行时的结构 一、概念现在进行时表示说话时正在进行或发生的动作，也可表示当前一段时间内的活动 或现阶段正在进行的动作. 结构：助动词 be ( am / i s / are ) +现在分词。 二、现在分词的构成： .大多数动词后可在动词后直接加一ing. Eg: carry-carrying, catch—catching,dr ink—dr inking,enjoy—enjoy ing hurry-hurry ing , do—doing , re ad-read i ng , th i nk-th inking. 如果动词以—e结尾，那么去掉-e,再加—ing,如 come-coming , have-having ,make-making, r ide—r iding,wr ite-wr it i ng, take-tak i ng, use-us i ng. 3o 如果动词只有一个元音字母，而其后跟有一个辅音字母时，将此辅音字母 双写，再加-ing 如：hit—hitting, Iet-1etting,put-putting, run—running, s it-s itt i ng. 4o如果动词有两个音节，且重音在第二个音节上，那么末尾的辅音字母双写，加—i ng, 如: forget-forgett i ng, prefer-preferr i ng, traveI—traveI Ii ng swim-swimming 5o以 -ic 结尾的动词，应先把 -ic 变为 一ick,再加 一ing,eg:panic/panicking 但 I ie/1y ing , d ie/dy ing , t ie/ty ing 是特殊变化要 记住. 三、句型结构: 1o现在进行时的肯定形式、否认形式、疑问形式及其回答，所有变化都表达在助动 词 be ( i s / am / are ) 上.1)现在进行时的肯定形式：主语+be (am/ i s/are) +doi ng+其他成分I am singing o They are writing o 2)现在进行时的否认形式：主语+be (am/ is/are) +not +doing+其 他I am not singing . They aren? t writing . 3) 一般疑问句及回答：be (am/ is/are) + 主语+doing+其他成 分 Am I singing ? Yes , you are o / No , you aren t . Are they writing ? Yes , they are / No , they aren, t. 4)特殊疑问句及回答：特殊疑问词+be (am/ i s/are) +主语+doing+其他成 分What are you doing ? We are playing (要求就提问内容具体回 答)。 2o 缩写形式如下： Hes SheI amIm You areYou re HeIt isIts We areWe re They areThey, re Hes She 四.用法： 1 .表示现在(指说话人说话时)正在发生的事情.往往与 now, atthe moment, just 等副词连用，以示强调. 1 /3 现在进行时的结构 We are waiting for youo What are you doing? Some ones knock i ng at the door. 2.正在进行着的动作可视为未完成的动作： He s talking to h i s f r i ends i n the c I assroom. 可 用 sti I I 一词强调动作的持续性 Hes still talking to his fr iends in the cIassroomo3o表示一段时间内重复性的动作，说话时动作未必正在进 彳亍. Mr o Black i s writing another art i cIe. .现在进行时可用来表示不会长期发生的动作或情况，或被认为在短期内正在进 行的动作或存在的状态 Whats yourbrother do i ng these days? Hes studying Engli sh at Oxford University. .现在进行时也可以用来表示当前的动向： PeopIe are becoming more and more beaut i fuI these days. 6.表示渐变的动I司有：become, turn, get, grow, run, go, begin等. The I eaves are turn i ng browno Its