助动词一、在一般现在时中，动词do做为助动词无词义，只是帮助一般现在时构成否定句，一般疑问句；作为实义动词，其词义是“做、干”的意思。
二、动词does是动词do的第三人称单数形式。一般现在时主语是第三人称单数，动词和助动词都用does。
三、切记助动词do和does出现，实义动词用原形。
典型例题
1.They don’t wash their faces every night.
A.助动词无义 B.没做
2. Peter often does his homework at home.
A.助动词无义 B.做
3. She doesn’t do it.
A.助动词无义 B.做
强化训练
一、把下列动词变为第三人称单数形式。
1.live_____ 2.like_____ 3.do_____ 4.wake_____ 5.watch_____ 6.play_____ 7.have_____ 8.eat_____9.work_____ 10.fly_____ 11.speak_____ 12.go_____ 13.sing_____14.wash_____15.study_____16.drive_____17.ride_____ 18.try_____
二、选择填空。
1 . I usually _____a cake on Saturday.
A.make B.makes C.making
2 . She _____ to play cars with her sister.
A.want B.wanting C.wants
3 . We _____ go home at 5:30 every day.
A.doesn’t B.aren’t C.don’t
4 . Mr. Wang doesn’t_____yellow.
A.like B.likes C.liked
5 . The pupils _____ very well.
A.don’t sing B.aren’t sing C.doesn’t sing
6 . Mike doesn’t _____ that.
A.does B.do C.\
7 . The boys _____their homework after school in the afternoon.
A.do B.does C.are
8 . My mother _____ TV in the afternoon.
A.watch B.watchs C.watches
9 . I _____ music very much.
A.am B.like C.am like
10 . They _____ have Maths every day.
A.\ B.does C.are
11 . Xiaofang _____hard.
A.work B.working C.works
12 . She _____ with her mather and father.
A.is live B.isn’t live C.lives
13 . Tom and I _____ speak Chinese.
A.doesn’t B.don’t C.does
14 . Li Ping _____ him every day.
A.doesn’t see B.see C.don’t see
三、辨别下列句子，正确的在括号里打“”，错误的打“”，并改正。
1 、Amy and her father don’t going shopping. ( )_______
2 、We plays football on Saturday afternoon. ( ) _______
3 、The old man like to learn English. ( ) _______
4 、I don’t my homework at home. ( ) _______
5 、Tom like playing badketball. ( ) _______
6 、I always does my homework at 7:00 in the eveing. ( ) _______
7 、It don’t sing very well. ( ) _______
8 、She always write a letter to her friend. ( ) _______
9 、A sheep doesn’t eats fish. ( ) _______
10、He live in Hebei. ( ) _______
11、Lingling and her friends doesn’t go swimming. ( )_______
12、I plays football on Sunday afternoon. ( ) _______
13、The old men go to the park. ( ) _______
14、I doesn’t do my homework at 6:00. ( ) _______
15、Tom like green T-shirts. ( ) _______
16、I always cleans my room on Sundays. ( ) _______
17、It don’t sing very well. ( ) _______
18、She always draw a picture for her grandpa. ( ) _______
19、Dogs doesn’t eat fish. ( ) _______
20、That woman live in Hebei. ( ) _______
四、用动词的适当形式填空。
1 、They _____(read) English in the morning.
2 、She _____(like) her coat very much.
3 、He usually _____ (watch) TV at 7:00 in the evening.
4 、The girl _____ (fly) a kite every spring.
5 、He _____ (get) up at 7 o’clock in the morning.
6 、The man and the woman always _____ (listen) to the radio.
7 、Lucy _____ (not sing) very well.
8 、I _____ (not go) to school by bus every day.
9 、Daming _____ (run) a race on Mondays.
10、We _____ (do) high jump with our friends at school.
11、The little girls _____(read) English in the evening.
12、They _____(like) her coat very much.
13、She usually _____ (watch) TV with her sister in the evening.
14、The girls and the boys _____ (fly) a kite every spring.
15、We _____ (get) up at 7 o’clock in the morning.
16、My brother always _____ (listen) to music in his room.
17、Lucy and Lily _____ (not speak) Chinese.
18、I _____ (not go) to school by bus every day.
19、Daming _____ (eat) a hamburger on Mondays.
20、We _____ (play) games with our friends at school.