、一般現在時的功能
1表示事物或人物的特徵、狀態。如：the sky is blue.天空是藍色的。
2表示經常性或習慣性的動作。如：i get up at six every day.我每天六點起床。
3表示客觀現實。如：the earth goes around the sun.地球繞著太陽轉。
二、一般現在時的構成
1 be動詞：主語+be(am,is,are)+其它。如：
i am a boy.我是乙個男孩。
2行為動詞：主語+行為動詞(+其它)。如：
we study english.我們學習英語。
當主語為第三人稱單數(he, she,it)時，要在動詞後加"-s"或"-es"。
如：mary likes chinese.瑪麗喜歡漢語。
三、一般現在時的變化
動詞的變化。
肯定句：主語+be(am,is,are)+其它。
如： i am a boy.我是乙個男孩。
否定句：主語+ be + not +其它。
如：he is not a worker.他不是工人。
一般疑問句：be +主語+其它。
如：-are you a student? -yes. i am. / no, i'm not.
特殊疑問句：疑問詞+一般疑問句。
如：where is my bike?
2. 行為動詞的變化。
（l）、當主語為第一，二人稱及複數時，助動詞為do
肯定句：主語+動詞原形(+其它)。
如： we often play basketball after school.
否定句：主語+ don't+動詞原形(+其它)。
如：we don』t play basketball after school.
一般疑問句：do +主語+動詞原形+其它?
如： do you often play basketball after school l? yes, we do. / no, we don't.
特殊疑問句：疑問詞+以do開頭的一般疑問句？
如： what do you often do after school ?
（２）、當主語為第三人稱單數時 ,
助動詞為does
肯定句：主語+動詞三單式(+其它)。
如： he swims well.
否定句：主語+ doesn』t+動詞原形(+其它)。
如：he doesn』t swim well..
一般疑問句：does +主語+動詞原形+其它。
如：does he swim well ?
yes, he does. / no, he doesn't.
特殊疑問句：疑問詞+以does開頭的一般疑問句？
如： how does your father go to work?
3．第三人稱單數的動詞變化規則（只有在第三人稱為主語的肯定句中，動詞才用三單式）(1)多數動詞直接加s:
runs gets likes collets takes plays climbs…….
(2)結尾是s, x, sh, ch, o,前為子音字母,
結尾加es : watches teaches goes does washes crosses mixes brushes
(3)動詞末尾y前為子音:將y改為i加es:
study→studies fly→flies carry→carries cry→cries
但在y前如果為母音則直接加s: buys says
4.．時間標誌：always , usually , often , sometimes ,every…
四．同步練習：
一.寫出下列動詞的第三人稱單數。
drinkgostay
makelookh**e
passcarrycome
watchplantfly ________
study ________brushdo
teachtakesee
二.用下列單詞的適當形式填空
oftenplay) in the playground.
up at six o』clock.
3youbrush) your teeth every morning?
he usuallydo) after school?
english, chinese, maths, science and art at school.
sometimesgo) to the park with his sister.
eight at night, shewatch) tv with his parents.
8mike________(read) english every day?
many lessons_________your classmates________(h**e) on monday?
time_________his motherdo) the housework?
三.改句子
you often play football after school? (改為肯定句)
h**e many books.（改為否定句）
shan』s sister likes playing table tennis （改為否定句）
lives in a small town near new york.（改為一般疑問句）
watch tv every day.（改為一般疑問句）
h**e four lessons.（改為否定句）
doesn』t run fast （改為肯定句）
dog runs fast
否定句：
一般疑問句：
has two letters for him.
一般疑問句句：
否定句：
否定句:
一般疑問句:
對劃線部分提問
yang usually washes some clothes on saturday.
否定句:
一般疑問句:
對劃線部分提問
usually waters the flowers every day.
否定句:
一般疑問句:
對劃線部分提問：
does his homework at home.
否定句:
一般疑問句:
對劃線部分提問： usually play football on friday afternoon.
一、用所給動詞的真確形式填空
likeswim).
englisheveryday.
school at seven in the morning.
school at seven in the morning.
______(go) shopping.
candraw)manybeautifulpictures.
amodelplane.
? nancygrow)flowers on saturday ?
teacher________(likedance).
studentsspeak) english in class.
studentspeak) chinese after class.
15. let』sand play football . ( go )
16. helike swimming . ( not )
17. i』m sorrythat . ( hear )
18. wang bing iswrite ) an e-mail to his friend .
19. he hasa headache . ( get )
20you study english at school ? yes , ido )
21your sister study english at school ? no , shedo )
22. i』mbetter . ( feel )
23. whytom absent today ? ( be )
二、用所給的人稱改寫句子
take photos on sunday. ( mike)
grow beautiful flowers. (she)
like collecting stamps. (ben)
listen to music carefully. (my aunt)
like ****** a model ship. (helen)
clean the classroom every day. (he)
look after the pandas. (mr wang)
draw a tree and some flowers. (nancy)
go to bed at eight. ( my sister)
read news*****s in the evening. (mr green)
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