现在进行时的结构汇编

1、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 / is / 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-ing.Eg: carry-carryi ng,catch-catchi ng,dri nk-dri nki ng, enjo y-enj oying hurry-hurry ing ,do-doing , read-readi ng , thi nk-thi nki ng如果动词以-e结尾，则去掉-e,再力卩-ing,女口 come-coming , have

2、-having , make- making,ride-riding,write-writing,take-taking,use-using .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-i ng 如: hit-hitti ng,let-lett ing, put-putt in g,r un-runnin g,sit-sitt ing .如果动词有两个音节，且重音在第二个音节上，则末尾的辅音字母双写，加-ing, 如:forget-forgetti ng,prefer-preferri ng,travel-travelli ng swim-swimmi ng以

3、-ic结尾的动词，应先把 -ic 变为-ick,再力卩-ing,eg: panic/panicking但 lie/lying ,die/dying ,tie/tying 是特殊变化要记住.三、句型结构：1现在进行时的肯定形式、否定形式、疑问形式及其回答，所有变化都体现在助动词 be ( is / am / are )上.现在进行时的肯定形式：主语 +be(am/ is/are)+doi ng+其他成分 I am singing . They are writi ng .现在进行时的否定形式：主语+be(am/ is/are)+not +doing其他 I am not singing . Th

4、ey aren wtiting . 般疑问句及回答：be(am/ is/are)+主语+do ing+其他成分 Am I singing ? Yes ,you are . / No ,youaren . tAre they writing ? Yes ,they are . / No ,theyaren . t特殊疑问句及回答：特殊疑问词+be(am/ is/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).缩写形式如下：I am-1 nYou are-You rede is-He She is- hes It

5、is-It We are- We reThey are-They re四用法：表示现在(指说话人说话时)正在发生的事情往往与now,at the momentjust等副词连用，以示强调.We are waiting for you. What are you doing? Someone knocking at the door.正在进行着的动作可视为未完成的动作：He talking to his friends in the classroom.可用 still 一词强调动作的持续性He still talking to his friends in the classroom.表示一段

6、时间内重复性的动作，说话时动作未必正在进行. Mr. Black is writi ng ano ther article. 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 Whatsour brother doing these days?Hestudying English at Oxford University.现在进行时也可以用来表示当前的动向：People are beco ming more and more beautiful these days.表示渐变的动词有：become,tur n, get,grow,r un, go,beg

7、 in等. The leaves are turning brown. It getting colder and colder.与always,constantly,forever等词连用，表示反复发生的动作或持续存在的状态往往带有说话人的主观色彩.You are always cha nging your mind.一 用现在进行时完成下列句子：you(fly) a kite? Yes,.you(sit) in the boat?he(talk) with me?We(play) football now.Whatyou(do)?I(sing) an En glish song.Whath

8、e(men d)?He(mend) a car.These boys(play) tennis on the playgro und.My mother(cook) in the kitche n.We can help you,because we(have )classes.the boy(write) his homework?Look! These butterflies(fly) in the sky.Liste n! The girl(sing) in the n ext room.The n aughty boy(swim) in the river.二.选择Look. Lucy

9、 isa new bike today.A. jumpi ng B. running C. ridi ng D take ingThe childrenfootball.A. is playing B. are playing C. play the D. play aTheyTV in the eve ning. They do their homework.A. are watching B. can watching C. don watch D. don watchingListe n! Shein the classroom.A. is singing B. si ng C .to

10、si ng D. is singare you eating? nmatingmeat.A. What,some B. Which,a ny C. Where, not D. What,aIs shesomething? A. eat B. eating C. eatting D. eats7 I can catch up with the fashi on because the clothes styleall the time.A. has cha nged B. is cha nged C. is cha nging D. cha ngedIt six in the after noon. The Greenslunch together.A. has B. are hav ing C. have had D. had hadDon make any noise while the studentsto the