现在进行时
定义
现在进行时的定义：表示此时此刻正在进行的动作或事情。
构成
现在进行时的构成是:主语+be+v.ing〔现在分词〕形式 第一人称单数 I+am+doing+Sth. 第一人称复数 We+are+doing +Sth.
第二人称单(复)数 You+are+doing+Sth.
第三人称单数 He（She，it）+is+doing+Sth.
第三人称复数 They+are+doing +Sth. 肯定句:主语+be（is/am/are）+现在分词
否定句：主语+be（is/am/are）+not+现在分词
一般疑问句:be（is/am/are）+主语+现在分词
特殊疑问句：特殊疑问词+相应be动词+主语+现在分词+Sth? 动词的现在分词变化规则
现在分词是在动词后加上ing 构成。如:starting,working, coming, sitting 等都是现在分词。 (1)直接在谓语动词后加ing.例如：going, starting, working,looking.
(2)去掉词尾不发音的e，再加ing.例如 leaving,making,coming,writing.
注意：如果单词结尾的e发音，则不能去掉，也直接加ing.例如：see -seeing/agreelying/dietying/picnicsitting, begin -beginning, get – getting putrunning stopcutting control - controlling
4.特殊变化：die-dying,lie-lying，tie-tying 现在进行时的基本用法：
A 表示现在( 指说话人说话时) 正在发生的事情。 例：We are waiting for you.B.习惯进行：表示长期的或重复性的动作，说话时动作未必正在进行。 例：Mr.Green is writing another novel.(说话时并未在写，只处于写作的状态。)
例：She is learning piano under Mr.Smith.
C.已经确定或安排好的将来活动。
I\'m leaving for a trek in Nepal next week.（已经安排了）
we\'re flying to Paris tomorrow.(票已经拿到了） 时间状语
1.当句中出现的表示时间的词是now, at the moment (此刻、现在)等时，表示句子要说明的是现在正在发生的事，动词应用现在进行时。
Linda\'s brother is watching TV in his bedroom now.
We\'re far from home.What are our parents doing at the moment?
They are playing basketball now.现在他们正在打篮球。 2.当句中出现的时间状语是these days, this week, this month等时，如果句子所要表达的意义是在这一阶段正在发生的事，则动词应用现在进行时。
These days we are helping the farmers work on the farm.这些天我们在农场帮农民们干活。
They\'re having a test this week.这一周他们在进行一次考试。
Mr Cheng is visiting our village this month.Listen! She is singing an English song.听，她正在唱英语歌。
Look at the picture.The children are flying kites in the park.
3.在句中出现了Look, Listen, Can\'t you see? 等暗示词时，说明后面谓语动词的动作正在发生，该动词应用现在进行时。
Look! Maria and Tom are dancing under the tree.
看！玛丽亚和汤姆正在树下跳舞。
Listen! Our English teacher is singing the popular English song.
听！我们英语老师正在唱那首流行的英文歌曲。
Many children are swimming in the river.Can\'t you see?
许多小孩在河里游泳，你难道看不见吗？
4.注意根据上下文的暗示，句子的谓语动词可能应用现在进行时。
— Where is Mr Wang? 王先生在哪儿？
— Oh, he is reading a newspaper in the office.噢，他正在办公室看报。
（问句询问王先生在哪儿，应说明他现在在哪儿，故答句应说明他现在正在做的事，用现在进行时。）
—Is that boy Jack?那个男孩是杰克吗？
— No,Jack is doing his homework in the claroom.不是，杰克正在教室做作业呢。
（答句中说明的杰克做作业的情况应发生在现在，应用现在进行时。）可用来表示现在进行时的时间状语，常用的有：now, this week, at this moment 等；或者告诉你一个准确的现在时间，或者用look, listen提醒听者注意正在发生的事。例如： 注意事项
1.在英语中，并不是所有的动词都要使用正在进行时,有些动词不能用于进行时态（状态动词不用于进行时态）
1）.表示知道或了解的动词:believe,doubt,forget,imagine,know, remember,realize,suppose,understand
2）.表示“看起来”“看上去\"appear,resemble,seem
3）.表示喜爱或不喜爱hate,like.love.prefer
4）.表示构成或来源的动词 be come from.contain,include
5）.表示感官的动词 hear see smell sound taste
6）.表示拥有的动词belong to.need.own .poe.want wish
I hear someone singing.我正听见有人唱歌。
Do you see anyone over there? 你看到那里有什么人吗？ What does he think of it? 他觉得这怎么样？
如果这些词使用正在进行时态，句子带有某种感情色彩。例如： Are you seeing someone off? 你在给谁送行吗？
They are hearing an English talk.他们在听一个英语报告。
2.现在进行时还有另外一种含义，即它们能表达即将发生的事情，相当于一般将来时。
We are leaving on Friday.我们星期五出发。
Are you going anywhere tomorrow？你明天准备去哪儿？
在表示将来的情况下，特别是be going to do sth.这种结构，已经没有多少“去”的意思了，几乎就是用来表达“将要、打算”做什么事情。例如：
It is going to be rather cold tomorrow.明天很可能非常冷。
She is not going to speak at the meeting.她不打算在那个会上发言。
3.当其与always、forever、continually、constantly 等副词连用时表示重复的动作，而这种动作可能使人不满，厌倦或满意。例如：
①She is perpetually interfering in my affairs.
她老是干预我的事。 （不满）
②The students are making progre constantly.
学生们在不断进步。 （满意）
现在进行时练习
一、按要求改写句子
1.The boy is playing basketball.否定句：____________________________ 一般疑问句：_________________________ 肯定回答：__________________________ 否定回答：__________________________ 对“ The boy”提问：__________________________ 2.造句: 1).she,the window,open,now.(用现在进行时连词成句.)
3 2).is,who,the window,cleaning?(连词成句) 3).She is closing the door now.(改成否定句) 4.)You are doing your homework.(用\"I\"作主语改写句子) 5).they,the tree,sing,now,under.(用现在进行时连词成句.) 6).The Young Pioneers are helping the old woman.(改成一般疑问句)
二、单项选择
（ ）1.我在照看孩子. (A)I am looking after the baby.(B)I\'m look aftering the baby. (C)I look am aftering the baby.(D)I looking after the baby.( )2._____friend\'s making______a kite. (A)I,me (B)My,my (C)My,me (D)His,his ( )3.Is the woman ______ yellow your teacher? (A)in (B)putting on (C)wearing (D)having ( )4.Look!The twins_____their mother do the housework. (A)are wanting (B)help(C)are helping (D)are looking ( )5._____are the birds doing? They are singing in a tree. (A)Who (B)What (C)How (D)Where ( )6.Is she____something? (A)eat (B)eating (C)eatting (D)eats ( )7.你在干什么? (A)What is you doing? (B)What are you do? (C)What are you doing? (D)What do you do? ( )8.What are you listening_____? (A)/ (B)for (C)at (D)to ( )9.我正在听他说话. (A)I listening to him.(B)I\'m listening to him.(C)I\'m listen to him.(D)I\'m listening him.( )10.They are_____their clothes. (A)makeing (B)putting (C)put away (D)putting on ( )11.Listen! She____in the claroom. (A)is singing (B)sing (C)to sing (D)is sing ( )12.Today Jim______ his white shirt and brown trousers. (A)is putting on (B)wear (C)put on (D)is wearing ( )13.______are you eating?I\'m eating______meat. (A)What,some (B)Which,any (C)Where,not (D)What,a ( )14.They______TV in the evening.They do their homework.(A)are watching (B)can\'t watching (C)don\'t watch (D)don\'t watching ( )15.The children_____football.
4 (A)is playing (B)are playing (C)play the (D)play a ( )16.They are flying kites. (A)他们喜欢放风筝.(B)他们在放风筝吗? (C)他们在放风筝.(D)他们常放风筝. ( )17.Look,They are swimming in the river.I want_____you. (A)to go with (B)go with (C)helping (D)help ( )18.Look.Lucy is_____a new bike today. (A)jumping (B)running (C)riding (D)takeing
三、用现在进行时完成下列句子: 1.What_________you__________(do)? 2.I_____________(sing) an English song.3.What________he____________(mend)? 4.He______________(mend) a car.5.______you__________(fly) a kite?Yes,_______.6.______she___________(sit) in the boat? 7.______you_____________(ask) questions? 8.We_______________(play) games now.
