牛津英语5A英语语法(现在进行时)

1、牛津英语5A英语语法(现在进行时) WORD文档使用说明：牛津英语5A英语语法(现在进行时) 来源于PDF转换成WROD 本WOED文件是采用在线转换功能下载而来，因此在排版和显示效果方面可能不能满足您的应用需求。如果需要查看原版WOED文件，请访问这里牛津英语5A英语语法(现在进行时) 牛津英语5A英语语法(现在进行时)|PDF转换成WROD_PDF阅读器下载牛津英语 5A 英语语法(四)现在进行时 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

2、成： 1.大多数动词后可在动词后直接加-ing Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking 2. 如果动词以-e 结尾,则去掉-e,再加-ing, 如 come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using 3. 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

3、写,再加-ing 如： hit-hitting,let-letting, put-putting,run-running,sit-sitting 4. 如果动词有两个音节,且重音在第二个音节上,则末尾的辅音字母须双写,再加-ing, 如: forget-forgetting,prefer-preferring,upset-upsetting试比 较 benefit/benfiting, differ/differing,profit/profiting,这些词的重音在第一个音节上,因此其末尾的 辅音字母不双写 5. 以 -ic 结尾的动词,应先把 -ic 变为 -ick,再加 -ing,eg:

4、 panic/panicking,picnic/picnicking,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 1)现在进行时的肯定形式：主语+be(am/ is/are)+doing+其他成分 I am singing . They are writing . 2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分 I am not singing . They arent

5、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 . / No ,you arent . Are they writing ? Yes ,they are . / No ,they arent . 4)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). 2. 缩写形式如下: I am-Im You are-Youre He is-Hes She is-

6、Shes It is-Its We are-Were They are-Theyre 3.说明: 不是所有动词都能用现在进行时态的,如： see、like、want、know 等动词往往都不用进行时态 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,at the moment,just 等副词连用,以 示强调 We are waiting for you. What are you doing? Some ones knocking at the door 2.正在进行着的动作可视为未完成的动作： Hes talking to his friends in the c

7、lassroom. 可用 still 一词强调动作的持续性 Hes still talking to his friends in the classroom.3. 表示长期的或重复性的动作,说话时动作未必正在进行 Mr. Black is writing another article. Dont take that book away. Your fathers using it. She is learning piano under Mr. Black. 4.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 的情况： Whats your brothe

8、r doing these days? Hes studying English at Oxford University. 5.现在进行时也可以用来表示当前的动向： People are becoming more and more beautiful these days. 6. 表示渐变的动词有：become,turn,get,grow,run,go,begin 等 The leaves are turning brown. Its getting colder and colder. 7.与 always,constantly,forever 等词连用,表示反复发生的动作或持续存在的状

9、态,往往带有说话人 的主观色彩 You are always changing your mind. 8. 现在进行时(以及 be going to）可以表示为将来安排好的活动和事件 Were spending next winter in China. 用 arrive,come,go,leave 等动词的现在进行时描写行 程安排,也通常有“将到达” 和“将离去”的意思： Hes arriving tomorrow morning. 9.当现在进行时表示某事发生的次数过多时,则有时含有抱怨,讨厌,赞扬等的意思： He is always singing at night,and we can

10、t fall asleep late at night. 练习 一.用现在进行时完成下列句子: 1. _you_(fly) a kite? Yes,_. 2. _you_(sit) in the boat? 3. _he_(talk) with me? 4. We_(play) football now. 5. What_you_(do)? 6. I_(sing) an English song. 7. What_he_(mend)? 8. He_(mend) a car. 9. These boys _ (play) tennis on the playground. 10. My moth

11、er_ (cook) in the kitchen. 11. We cant help you,because we _ (have )classes. 12. _ the boy _ (write) his homework? 13. Look! These butterflies _ (fly) in the sky. 14. Listen! The girl _ (sing) in the next room. 15. The naughty boy _ (swim) in the river. 二.选择 1. Look. Lucy is_ a new bike today. A. ju

12、mping A. is playing B. running C. riding D takeing D. play a 2. The children _ football. B. are playing C. play the3. They _TV in the evening. They do their homework. A. are watching B. cant watching C .to sing C. dont watch D. is sing C. Where,not D. eats C. has lost,havent found D. is missing,have

13、nt D. What,a D. dont watching 4. Listen! She_ in the classroom. A. is singing B. sing A. What,some A. eat 5. _are you eating? Im eating _ meat. B. Which,any C. eatting 6. Is she _ something? B. eating dictionary _,I have looked for it everywhere but still_ it. A. has lost,dont find found. 8.Having a

14、 computer for personal use is no easy task because technology _ so rapidly. A. is changing B. has changed B. is built B. is changed C. will have changed C. is being built C. is changing D. had had D. had listened D. will change 9. The building_ ,I cant stand the noise. A. was being built A. has chan

15、ged A. has D. builds D. changed 10. I cant catch up with the fashion,because the clothes style_ all the time. 11. Its six in the afternoon. The Greens_ lunch together. B. are having C. have had 12. Dont make any noise while the students_ to the class. A. are listening A. swim A. plays B. listened C.

16、 have listened 13. Jack and Ketty_ in the lake. Lets join them,shall we? B. have swum B. played C. swam D. are swimming D. are playing D. flew D. are growing C. has always been speaking D. does speak 14. Look! The children_ basketball on the playground. C. is playing 15. The kite_ high in the sky no

17、w. It looks like a big bird. A. has flown A. is grown B. is flying B. is growing C. was flying C. are grown we all know,the population in the world _ faster and faster. 17. To my surprise,he_ in class. A. is always speaking always 18. I want to know when he _ for New York tomorrow. A. has left B. is

18、 leaving C. had left D. has been leaving always been thought D. thinking always 19. He_ of how he can do more for the people. A. had always thought is,mending B. are cut B. is always thinking C. are being cut 2. Are sitting, plying 20. Forests _ and burned at such a speed that they will disappear from the earth in the future. D. had be