爱华网动词第三人称单数（2010.4.10）
一． 【语法要点】
※ 动词有三单，快点成习惯，体会在心里，一定要过关。
主语“他她它，油水米或沙”，主语判断准，三单管住它。
※三单s加，词尾“是稀奇”，es当尾巴。否定和疑问，does为老大，后面去尾巴。
※ 三单最会打，打就打死（does）它，只准打一次，打掉小尾巴。
记住以上这些话，考试、说话不犯法（合乎语法）。
二．判断下列句子是否有三单
1. 妈妈爱我。我也爱她。
My mother loves me. I love her, too.
2. 爸爸打我。我不打他。
My father beats me. I don’t beat him.
3. 他学英语。她学画画。
He studies English. She learns to draw.
4. 杰克上学。玛丽在家。
Jack goes to school. Mary stays at home.
5. 哥哥洗脸。妹妹刷牙。
My brother washes his face. My sister brushes herteeth.
6. 小猫钓鱼。鹦鹉说话。（parrot）
The cat goes fishing. The parrot speaks.
7. 每天下雨。风儿狂刮。
It rains every day. It blows very hard.
8. 我们上班。他们回家
We go to work. They go home.
9. 我爸和我妈要回姥姥家。
My father and mother want to go to grand mother’shome.
10. 我爸或我妈上街去买花。
My mother or father wants to go to town to buyflowers.
三．句型转换：（陈述句、否定句还是疑问句）
1. He drinks milk every day. (改为疑问句和否定句)
2. Does he want to go to town with us? (改为肯定句)
3. They want to stay here. (改为疑问句和否定句)
4. Jack likes English. (改为疑问句和否定句)
5. Jack and Mary love Chinese food.(改为疑问句和否定句)
6. The water flows from the west to the east.(改为疑问句)
7. Time goes the same every day. (改为疑问句)
8. A horse runs faster than a cow. ((改为疑问句)
9. The clock clicks every second. (改为疑问句和否定句)
四．三单最会打，打就打死（does）它，只准打一次，打掉小尾巴：
（翻译下列句子注意三单）
1.长江水向东流，永远不回头。
2.英语没学好，不敢大胆秀。
3.他上学坐车。我上学靠走。
4.我爱吃饭。他爱吃粥。
5.Mary从不吃鱼。Jack喜欢吃肉。
6.她不起早。她不梳头。
7.他不学习。他不研究。
8.我去北京？他去苏州？
9.你住平房？她住高楼？
10.我有诀窍，学习无忧。
五．动词三单变化规律（只有一般现在时才有第三人称单数）
动词好好看，词尾有变幻，规律掌握好，一点都不难。
1. 一般在词尾加s:
eats drinkssleeps seeslooks hearswalk talkreadswrites
2. 词尾读音“是稀奇”，就加es：
kisses missesfixes dressesstresses presses expressesimpresseswashesbrushes pushesflashesteaches watches matches
3.单词结尾y，千万别乱猜，元加y就不改，直接加s，辅音加y，改y为i加es:
staypay play buysay enjoydestroy displayspray slay
study--studies carry–carriesmarry—marries worry—worries hurry—hurriesfly--flies try--tries dry—driescry—criesbury--buries
4. 记住特殊的两个单词go和do后面加es：
goes does
5. 记住最为特别的be的三单是is; have的三单是has.
六．单词三单变化练习，填充下列表格：
(至少写出44个)
词尾只加s  | 词尾要加es | 不改y直接加s | 改y为i加es | o后加es |
1 | ||||
2 | ||||
3 | ||||
4 | ||||
5 | 特别的两个单词 | |||
6 | ||||
7 | ||||
8 | ||||
9 | ||||
10 |
七．巩固练习：
1．【要点】无论三单藏哪里，我们都要有警惕，只要你能抓住它，考试成绩受人夸。
1）一定要看准句子的主语是第三人称而且还是单数。
2）经常与频度副词连用。
3) 尾巴问句里也会有三单。
always, usually, often, sometimes, seldom,hardly, never
once a daytwice a weekthree times a month
4)who提问的时候，一般要用三单，如果指的是两个人以上，就不用三单。
Who在句首提问的时候，它充当的是主语，就不需要does来帮助，直接将它后面的动词改为三单就可以了。
2．速度练习
【判断三单】说出使用三单的理由
1）Who wants to try?
2）Mary or Jack wants to come here.
3）He studies English very hard, doesn’the?
4）My mother does housework three times aweek.
5）She goes to Know-how English twice aweek.
6）I go to Beijing once a year.
7）They like English very much, don’tthey?
8）He likes English very much, doesn’the?
9）He never drinks coke.
10）I sometimes get up late.
11）The dog wants to eat the bone.
12）The little cat wants to catch the fatrat.
13）My grandfather often goes fishing.
14）My father seldom beats me.
