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1、Alvin英语语法强化练习现在进行时1 .定义：现在进行时表示正在发生或进行的动作。结构：be (am, is, are)动词现在分词形式(简写：be + 动词-ing)A、肯定句主语+ be (am, is, are)现在分词，如：I am reading English 正在读英语。He is writing他正在写字。B、一般疑问句Be(Am, Is, Are+主语+现在分词？如：Are you singing?尔正在唱歌吗？C、否定句主语+ be (am, is, are)not+现在分词I am not doing my homework.我不在做作业。2 .关键词：(1) now、
2、at the moment止匕时止匕亥ll (四年级才会学到)(2)句前有提示词look、listen3 .动词-ing的构成规则(1) 一般情况下，直接加ing,如：cook-cooking(2) 以不发音的 e结尾，去 e力口 ing, 如： make-making, taste-tasting(3)如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing,如：run-running, stop-stopping(4)以 ie结尾的动词,先把 ie 变成 y 再加-ing。lie- lying tie -tying die-dying 注意：see-seeing draw-dr
3、awing listen-listening还有两个在网上看到的口诀，比较有帮助；1 .现在分词构成口诀现在分词很好记，动词后缀-ing。直接加、去e力口、双写加。还有一点要注意ie要用y来替。2 .现在进行时用法口诀主语在前be在后，现在分词跟着走，其他成分不可丢。变一般很简单，把be提到句子前，否定句也不难，be后要把not添。还有一点要注意，动作提问doing替。现在进行时态练习题 将下列动词变成ing形式help_ comeswim_ eatgivefindsitwritetiemakeplaycleancatchwalkriderundrawlistenbegindancewatch
4、sleepseehave二.用所给词的适当形式填空。I.Look ! The boy(read) books.2 .The girls(have) breakfast now.3 . he(clean) the blackboard? No, he isn ' t.4 .Tom(play) football on the playground at the moment .5 .Listen! They(sing) in the muisc room.三.汉译英。1 .我们正在看电视。We TV2 .Tom 在图书馆看书。 Tom books in the library.3 .康康在
5、操场上打篮球。Kang kang basketball4 .他此刻正在睡觉。He is sleeping.5 .玛利亚在做什么？ What Maria now?6 .你在做作业吗？ You your homework ?四.完成下列现在进行时的句子1. The students(listen) to the teacher now.2. Li Lei(watch) TV now.3. She(look) at a nice picture now.4. Look! The boys(play) basketball.5. Listen! They(sing) a song.6. A cat(r
6、un) up the tree now.7. I(get) up now.8. Her mother(wash) the dishes now.9. He(go) to the park now.10. They(sit) in the park.11. My mother(clean) the room now.12. She(drink) some milk.13. A cat(sleep) behind the door.14. Billy and Bob(play) football.15. They(have) fun together.五.将下列句子改成现在进行时1. I watc
7、h TV every day.I TV now.2. She works in a hospital. She in hospital.3. Do you read this book? you this book.4. Tom and Sam have lunch at about twelve.Kitty and Ben lunch at about twelve.5. They clean the room in the evening. They the room now.6. They don ' t play computer games.7. Do they swim ?
8、8. Does she write a letter ?9. What do they look at ?10. He talks to a friend.六、选择填空。()I.What are you doing?I ' man interesting book.A. lookingB. seeingC. reading()2. What your sister doing? She cleaning the floor.A. are, is B does, isC. is, is()3. Kate is her green dress now .A. putting on B pu
9、ts onC wear()4. Is she her homework? No, she.A. do, doesn' t B does,isn ' t C doing, is D doing,isn ' t ()5. Look! The cousins new sweaters.A. are wearing B. wearing C. are wear D. is wearing ()6. Don' talk here. My father and mother.A. is sleeping B. are sleeping C. sleeping D. slee
10、p ()7 Listen! The birds in the tree .A sing B singing C is singing D are singing()8. Who over there now?A. drawing B. is draw C. is drawing D. draw()9. The students an English class.A. have B. having C. is having D. are having()10. Listen! The baby in the room.A. crying B. cried C. is crying D. crie
11、s()11.I am to the radio.A. am listening B. listening C. am listen()12.She the piano.A is playing B are playing C playing()13.We on the chair.A. is sitting B. are siting C. are sitting()14.Lily on the playground.A. am running B. running C. is running()15. They in the pool.A. are swimming B. are swimi
12、ng C. swimming七.句型变换。1. The babies are crying in the room.2. I'm having my breakfast now.3. My sister is making a kite in her room.4. Mary is cooking in the kitchen.5. The students of Class Four are sweeping their classroom.6. The twins are waiting for a bus.八、按要求完成句子。1. He is eating dinner.附划线部
13、分提问) is he?2. They are reading in the library .附划线部分提问) they?3、I'm doing my homework in my study.时戈U线部分提问)4. Sue is sitting under the tree.1寸划线部分提问)5. she, the window ,open ,now.用现在进行时连词成句 .)6. is, who, the window, cleaning?连词成句)7. She is closing the door now.改成否定句)8. You are doing your homework.任I "I"作主语改写句子）9. they, the tree, sing, now, under用现在进行时连词成句.）10. The Young Pioneers are helping the old womans成一般疑问句）