反身代词是一种表示反射或强调的代词。它由第一人称第二人称形容词性物主代词和第三人称代词宾格加词尾self或selves构成。本题的第一句是一个祈使句，省略了主语you,根据句中“Boys”可知,此处应用复数,故选D。
反身代词是一种表示反 射或强调的代词。它由第一人称 第二人称形容词性物主代词和第三人称代词宾格加词尾self或selves构成。如下:
人称→第一人称→第二人称→第三人称
①单数：
myself/yourself/herself/itself/himself
我自己/你自己/她自己/它自己
②复数：ourselves/yourselves/themselves
我们自己/你们自己/（他/她/它们自己）
典例解析：
Boys, don't lose（）in playing Angry Birds. It is bad for your eyes to play computer games for a long time.
A. himself
B. yourself
C. themselves
D. yourselves
点拨D考查反身代词的用法。lose oneself in doing sth意为“沉迷于做某事”。本题的第一句是一个祈使句，省略了主语you,根据句中“Boys”可知,此处应用复数,故选D。
(二)反身代词的用法1.有少数动词必须与反身代词连用。Why were you absent yourself from school yesterday?你昨天为什么没有上学?
2.有些动词可以与反身代词连用，也可以不与反身代词连用，其意义不变，它们可称为半反身动词。He has to shave(himself)twice a day.
他必须一天修 刮两次胡子。
3.许多普通动词都可以与反身代词连用，以表示动作的反射。I support myself.我自己养活自己。
4.反身代词还可以用于名词或代词之后或句末，表示强调。I myself saw it.
=I saw it myself.那是我亲眼看见的。
典例解析：
- Hi，guys .How was your pary yesterday?
-Wonderful! We had a big meal and enjoyed（）.
A. myself
B. themselves
C. ourselves
D. yourselves
句意为“嗨，伙计们。昨天的晚会怎么样？”棒极了!我们吃了一顿大餐而且玩得非常高兴”。选C。
(三)反身代词的作用1.作宾语(作动词或介词的宾语)。He teaches himself drawing after school.
放学后他自学绘画。
We must look after ourselves very well.
我们必须好好照顾自己。
2.作名词或代词的同位语，起加强语气的作用,表示“亲自;本人”之意。①I myself can do it.我自己能做它。
②She herself will fly to Beijing tomorrow.
明天她自己将要坐飞机去北京。
③I met the singer himself last week.
我上周见到了那位歌手本人。
3.与介词by组成介词短语,表示“独自”之意。We can learn English by ourselves.
我们能自学英语。
4.作表语。I'm not quite myself these days.
我这些天身体感到不太舒服。
5. 用在某些固定短语当中。①look after oneself
=take care of oneself 照顾自己
②teach oneself sth.
=learn sth. by oneself 自学
③enjoy oneself玩得高兴，过得愉快
④help oneself to sth
请自用……（随便吃/喝些……）.
⑤hurt oneself摔伤自己
⑥say to oneself自言自语
⑦lose oneself in 沉浸于，陶醉于……之中
⑧leave sb. by oneself把某人单独留下
⑨buy oneself sth.给自己买……东西
⑩introduce oneself 介绍……自己
【注意】
1. 反身代词不能单独做主语，但可以做主语的同位语，起强调作用。如：我自己能完成作业。
（误）Myself can finish my homework..
(正) I myself can finish my homework.
= I can finish my homework myself.
2. 反身代词表示“某人自己”，不能表示“某人的东西”，因为它没有所有格的形式。表达“某人自己的（东西）”时，须要用one’s own.如：
我用我自己的蜡笔画画。
（误）I’m drawing with myself crayons.
(正) I’m drawing with my own crayons.
练一练：
一、用正确的反身代词填空1. You must be careful! Don't cut（）with the new knife.
2. My sister makes her clothes（）.
3. The dog opened the door by（）.
4. You must believe in（）or you can do nothing.
5. When I opened my eyes,I found（）in the darkness.
6. The novel（）has some faults.
答案：1.yourself 2.herself 3.itself 4.yourself 5.myself 6.itself
二、单项选择7. Nobody teaches me English. I learn it all by（）.
A.I B. my C. myself（√） D. me
8.If our parents do everything for us children, we won't learn to depend（）.
A. them B. us
C. themselves D. ourselves（√）
9. -How did your uncle learm to play the guitar?
-By（）
A. myself B. yourself C. herself
D. himself（√）
10.一Who teaches（）painting?
-Nobody,I teach（）.
A. your, mine
B. your,my
C. you, myself（√）
D. you,me
11. College students are old enough to teach（）.
A. them
B, their
C. themselves （√）
D. they
12. --Linda, help（）to some fruit,
--Thank you!
A. you B. yours C. yourself （√）
D. yourselves
13. His name is Thomas, but he calls（）Tom.
A. his B. him C. it D. himself（√）
14. -I'm afraid I'll fail in the exam,
Come on, Philip. You must believe in（）. That's the secret of success.
A, yourself（√） B. himself
c. herself D. myself
15. Welcome to my home for dinner , children, Help（）to some chicken, I'll cook some fish for you,
-Thank you, Aunt Li.
A. yourself
B. you
C. yourselves（√）
D. ourselves
三、用反身代词填空1. My classmate, Li Ming, made a card for _________ just now.
2. Bad luck! I cut _________ with a knife yesterday.
3. They tell us they can look after________ very well.
4. My cat can find food by_________ .
5. Help __________to some beef, boys.
6. Jenny enjoyed_________ in the park yesterday afternoon.
7. We can finish our homework by________ .
8. The blind girl lost_________ in the beautiful music.
9. Xiao Hui, can you introduce _____ to us ?
10. Bill wants to teach_________ French from now on.
答案：
1.himself 2.myself 3.themselves
4.itself 5.yourselvs
6.herself 7.ourselves
8.herself 9.yourself 10.himself
