文档介绍：时态与句型转换Ⅰ
一般现在时与现在进展时
Look, read and judge:判断以下句子的时态
LOOK! The birds are singing.
I often go to school by bus.
flies finds
13. teach teaches washes
Exercise:拼读出以下单词的三单形式
13. teach______
Simple Present Tense
〔一般现在时〕
(2)以s, x, sh, ch结尾的单词，或当 o前为辅音字母,加es
watches teaches goes does washes brushes
(3)以辅音字母加y结尾的单词，将y改为i加es:
study→studies fly→flies carry→carries cry→cries
但在y前如果为元音那么直接加s
buys says
runs gets likes takes plays climbs
(1)多数动词直接加s:
(4)特殊变形：
have→has go→goes
Exercise:用所给词的适当形式填空
〔根据标志词判断时态，进而确定动词形式〕
1. Mike often_______ (play) football in the playground.
2. Mike _________(play) football in the playground now.
3. Listen! Nancy is_________ (sing)
 ____ (do) he usually _____ (do) after school?
___ __(study) English and Art at school.
6. Mike ________ (go) to the park with his sister now.
’s eight o’clock, she ____ _ __ (watch) TV .
is Mike?
He______ __ (read) English in the classroom.
plays
is playing
singing
does
do
studies
is going
is watching
is reading
1. Mike often_plays__ (play) football in the playground.
2. Mike _is playing_(play) football in the playground now.
Exercise:根据要求完成句子
goes to school from Monday to Friday.
(用now替换from Monday to Friday〕
usually swims on Sundays.
(用now替换on Sundays)
Tao is having an English lesson now.
(用on Tuesday替换now)
now
is going
Mike is going to school now.
Nancy is swimming now.
Liu Tao has an English lesson on Tuesday.
Tips:
〔时间，频率等〕
在改变特定标志词时，句子的时态会有变化。
现在分词 动词三单形式/原形
特定
将句子变为一般疑问句，否定句与特殊疑问句时，
句子的时态不变。
现在分词 动词三单形式/原形
He wants a book.
2. Jimmy is washing clothes.
★变一般疑问句
有be动词/情态动词的，将be动词/情态动词放到句子开头。
没有be动词/情态动词的，在句子开头加Do,三单加does.
变一般疑问句，遇some→any，I→you，we→you ,my→your, our→your
一、变一般疑问句：
want
Does
is
Does he want a book?
Is Jimmy washing clothes?
likes