一般现在时主语单三人称时的动词变化
①在一般现在时中，当主语为第三人称单数时，动词要用“s”型（即第三人称单数形式）。

②所谓动词“s”型的构成，与名词变复数相似，即：
a）在动词尾直接加s。

如：
play—plays，want—wants，work—works，know—knows，help—helps，get—gets b）以字母s、ss、x、ch、sh或o结尾的动词加-es；如：
guess—guesses，fix—fixes，teach—teaches，brush—brushes，go—goes，do—does，watch—watches，catch—catches
c）以辅音字母＋y结尾的动词，先变y为i，再加-es。

如：
1.Lethim_____(play)basketball.
2.Everyone_____(know)whathereallylike.
3.Thosegirls____(be)mysister.
4.Thatgirl_____(call)meeverySunday.
5.How___(do)she_____(spell)theword?
6.He________TVeveryevening.(watch)
7.Wealways________toschoolonfoot.(go)
8.Tom,withhisclassmates,often______footballafterschool.(play)
9.Yourshoes_______underthebed.(be)
10.______hereand______byme.(come,stand)
11.Hisuncleusually_________toworkbybus.(go)
1．
2．
3．
4．
5．
6．
7．
8．
9．
10．
11．Nancy_______manyskirts.
12．David________somejackets.
13．Myfriends________afootball.
14．Whatdoyou________?
15．WhatdoesMike________?
四．否定句:在动词前+doesn't或don't.
1.She__________(do)herhomeworkeveryday.
2.He__________(live)inShanghai.
3.He__________(need)apairpfshoes.
4.Danny__________(see)theappletree?
5.She__________(come)fromAmerica.
五．Do
12.I___[donot/doesnot]speakJapanese.[Do/Does]_____youspeakJapanese? 六．请用动词的适当形式填空。

1._____thedesk_____(have)fourlegs?
Yes,itdoes.
2._____she____(do)herhomeworkeveryday?
Yes,shedoes.
3._____he_____(live)inJinan?
No,hedoesn't.
4._____he_____(need)apairofshoes? NO,hedoesn't.
5.DoesDanny_____(see)theappletree?
A.like
B.likes
C.to
5._____youlikeeatingapples?
A.Do
B.Does
C.Doing
6._____heswimeveryafternoon?
A.Do
B.Does
C.Doing
7.Tomlikes_____intheclassroom.
A.singing
B.sing
C.tosinging
8.–DoesSallylikeswimming?
--No,she.
A.do
B.does
C.doesn’t
9.PeterandMary_____milkeveryday.。