小学英语：现在进行时.pptx

现在进行时
1、定义：
现在进行时，用来表示正在进行或发生的动作。
2、结构：
主语+be (am, is, are)+动词ing
3、 标志词：
now, look, listen等。
现在进行时
(be) am、is、are：
1、am与主语I连用
2、is用于主语是第三人称单数（it，she，he，人名）
3、are用于主语是we，you，或第三人称复数。
口诀：我用am，你用are，is用在他她它，单数 名词使用is ，复数名词使用are
现在进行时
动词加ing的变化规则
1、一般情况下，直接加ing，
如：cook-cooking , jump-jumping
2、以不发音的e结尾，去e加ing，
如：make—making, write—writing, have—having,
skate—skating, dance—dancing
3、以重读闭音节结尾的动词（末尾是一个元音字母(a、e、i、o、u)和一个辅音字母），双写末尾的辅音字母，再加ing，
如：run—running, swim—swimming， get—getting，
shop—shopping
现在进行时
study _______ make _______ swim _______
stop _______ come ______ close ______
have ______ run _______ drive ______
wash______ sit _____ watch_____
take ______ talk _____ put ______
do _____ see _____ write_____
making
swimming
coming
closing
running
driving
sitting
watching
talking
putting
seeing
writing
studying
stopping
having
washing
taking
doing
现在进行时
标记--时间状语
现在进行时的句子中常有now，或在句首常出现look，listen等提示词。
He is playing basketball now.
Listen! Lucy is singing in the room.
现在进行时
1．Mr Zheng (read) a book now.
2. The rabbits (jump) now.
3.. Look ! Tom and John (swim).
4. My brother (make) a kite in his room now.
5. Look! The bus (stop).
6. We (have) an English class now.
is reading
are jumping
are swimming
is making
is stopping
are having
结构：主语+be (am, is, are)+动词ing
现在进行时
7. Listen! Someoneis____________(come).
8. They (catch) butterflies now.
9. He (do) an experiment now.
10. They (collect) stamps now.
11. Look! He (dive) now.
coming
are catching
is doing
are collecting
is diving
：直接在am/is/are后加not.(isn’t , aren’t ）（ am与not没缩写)
如：I am writing.
I am not writing.
现在进行时的句式
: 主语+be (am, is, are)+动