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1、一、现在进行时的构成：由,be动词+ v-ing”构成。(V-ing表示在动词后面加上ing) 现在进行时常用以下几种情况：1 .当句子中有now时，常表示动作正在进行，这时要用现在进行时。如：They a re playing basketball now.现在他们正在打篮球。2 .以look, listen开头的句子，提示我们动作正在进行，这时要用现在进行时。如：Listen ! She is singing an English song.听，她正在唱英语歌。二、现在进行时的变化肯定句式：主语+ be( am, is, are)+V-ing +其它.I am doing my homew
2、ork. He is washing his clothes.You are flying a kite.否认句式：主语 + be(am/Sj are)+not + V-ing + 其它.I am not doing my homework. He is not washing his clothes.You are not flying a kite.一般疑问句：Be(am, is, are) +主语+ V-ing +其它Are you doing your homework Is he washing his clothesAm I flying a kite特殊疑问句：疑问词+ be(a
3、m, is, are)+主语+ V-ing +其它What are you doing in the house Where is he goingWhen is she doing her homework三、动词的ing形式的变化1)一般情况在动词原形后直接加-ing go-going , stand-standing ， cook-cooking, do-doing2)以e结尾的动词，要去掉e + ing.take-taking, make-making, have-having3)重读闭音节动词，要双写最后一个字母，再加ing(所谓“重读闭音节：从动词的末尾开始寻找，如果倒数第二个字母
4、是元音字母，并且元音字母两边的字母没有组合音，没有变音，都单独发音，这样的动词都必须，双写后，再加上ingget- getting , put-putting, runrunning, begin-beginning swim-swimmingeateating这个动词有ea组合音，所以不能双写studystudying这个动词倒数第二个字母不是元音字母，不能双写(4以-ie结尾的动词，把ie变成y ,再加ing.lielying,tie-tying一、写出以下动词的现在分词：play run swi m m a ke golike write read have singput see bu
5、y I ove ta ke co m eget stop sit二.用所给的动词的正确形式填空：1. The boy(draw) a picture now.2. Listen! Some girls(sing) in the classroom.3. My mother(cook) some nice food now.4. What you(do) nowLook! They(have) an English lesson.5. What is our granddaughter doing She(listen ) to music.6. Its 5 o/clock now. We(have) supper nowTom(cook ) lunch Yes, he is.三.选择填空1. What are you nowB. do C. does1.1 am English.3. Shedancing now.A i4. Kate is.5. Look! The rabbit is.6. . Whatthey doing nowB. learns C. learningsB areC amB. running C. runB. jumpC. jumpsA. isB. amC. are