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初二英语培优补差 一、反身代词的用法
一、 概念 :
反身代词又称为自身代词,表示动作行为反射到行为执行者本身。它还可以在句中起到强调的作用,用以加强语气。
二、 构成:
第一人称
第二人称
第三人称
单 数
myself
yourself
himself herself itself
复数
ourselves
yourselves
themselves
三、用法:
1 作宾语,指的是宾语和主语表示同一个或同一些的人或事物。
如:Maria bought herself a scarf. 玛丽亚给自己买了一条围巾。
We must look after ourselves very well. 我们必须好好照顾自己。
2 作表语,指的是表语和主语表示同一个或同一些人或事物。
如: She isn’t quite herself today. 她今天有点不舒服。
3 作同位语(1)作主语的同位语。
如:She herself will fly to London tomorrow. 明天她自己将要坐飞机去伦敦。
She will fly to London herself tomorrow.
(2)作宾语的同位语。 I met the writer himself last week. 我上周见到了那位作家本人。
四、 用在某些固定短语当中。
look after oneself=take care of oneself 照顾自己
teach oneself sth= learn sth. by oneself自学enjoy oneself玩得高兴,过得愉快
help oneself to sth请自用……(随便吃/喝些……). hurt oneself摔伤自己
say to oneself自言自语 lose oneself in 沉浸于,陶醉于……之中
leave sb. by oneself把某人单独留下 buy oneself sth.给自己买……东西
introduce oneself 介绍……自己
温馨提醒 :
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.
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
五、 精题分析 :
1. --Who teaches __________English? --No one. I teach __________.
A. you; myself B. your; myself C. you; me
答案:A 【解析】代词的用法。考查宾格代词和反身代词的使用。teach + sb. + sth. “教某人某事 / 物”,双宾语;teach oneself “自学”的意思。故选择A。
2 -Help ____ to some cakes, Jim. ---Thank you.
A. you B. your C. yourself D. yourselves
答案C 【解析】反身代词。Help oneself to意为“随便吃点……”Jim是一个人,应该用yourself.故答案选C。
3. —How was your visit to the World Park in Beijing? —Wonderful! We enjoyed very much.
A. itself B. myself C. yourselves D. ourselves
答案D 【解析】enjoy oneself 玩的高兴,we 的反身代词是ourselves,故答案选D。
4. -How did your uncle learn to play the guitar?
-By
A. myself B. yourself C. herself D. Himself
答案:D 【解析】反身代词的用法。 by后加反身代词,表示“某人自己的”,主语为your uncle 故用himself。
5. — I could look after ____ when I was five.
— Really? I can’t believe it.
A. myself B. herself C. himself D. yourself
答案:A 【解析】考查反身代词的用法。句意:-当我五岁时,我能照顾好我自己。-真的吗?我不相信。look after oneself照顾某人自己。
6. Teenagers should learn to protect ______ from all kinds of danger.
A. them B. they C. their D. themselves
答案:D 【解析】考查代词辨析。them意为“他们”,作宾格;they意为“他们”,作主格;their意为“他们的”,作形容词性物主代词,后面跟名词;themselves意为“他们自己”,作反身代词。句意为“青少年应该学会保护自己免受各种危险。”protect oneself意为“保护自己”。故选D。
7. — Can you cook by____? — Yes, I can cook well
A. you B. yours C .yourself
答案:C 【解析】本题考查代词的用法。by yourself表示单独地,独自地。根据题意:-你能独自烹饪吗?-是的,我能做得很好。故本题选C。
8.—Help___to some fruits. —Thank you .
A. yourself B. Your C. You
答案:A 【解析】反身代词的用法。Help oneself to sth意为“请随意吃;自便”,这是招待客人的常用语。句意:“请随便吃水果。”“谢谢。”。故选A。
9. I Believe I Can Fly is a nice song by R. Kelly. This song tells us that believing in is very
important.
A. themselves B. ourselves C. itself
答案:B 【解析】考查反身代词 这里告诉我们,第一人称,是我们相信我们自己
10. Nobody teaches me English. I learn it all by______.
A. I B. my C. myself D. me
答案:C 【解析】考查反身代词的用法。根据句意:没有教我英语,我自学的。By+反身代词表示某人自己/亲自,主语为I 所以用myself。
七、精题练习 :
一.选择。
( )1. Those girls enjoyed ____ in the party last night.
A. them B. they C. themselves D. herself
( )2. Help ____ to some fish, children.
A. yourself B. your C. yours D. yourselves
( )3. The film ____ is very fun.
A. it’s B. itself C. it D. its
( )4. –Who teaches ____ math? –I teach ______.
A. your, myself B. you, myself C. you, me D. you, herself
( )5. The father will make ____ a bike ____.
A. her, himself B. she, himself C. her, herself D. she, herself
( )6. The scarf is ____, she made it_____.
A. herself, her B. herself, hers C. hers, herself D. her, herse
( )7. Liu Hulan’s death was great. She thought more of others than ______.
A. her B. she C. hers D. herself
( )8. Luckily, he didn’t hurt ____ terribly yesterday.
A. him B. Themselves C. himself D. they
( )10. I like watching in the mirror.
A. me B. I C. my D. Myself
二. 用所给词的适当形式填空。
1. We can’t only think of (we) , we should think of others.
2. Students should be strict with (they) .
3.Did the enjoy (them) in the party last ?
4. Help (you) to some vegetables. Jim and Jack.
5. The artist (he) will come to our school next week.
7. The cat in the mirror is (it) .
8. I bought (I) a new dictionary the day before yesterday.
9. I (my) agree with you.
10. The little boy is only four , he could wash (he) and get dressed.
二、动词不定式专项练习
一、 动词不定式作主语
1. It's our duty _________ the room every day.
A. to clean B. cleaned C. clean D. cleans
2. It's hard for us _________ English well.
A. learn B. learns C. to learn D. learning
3.建造这座立交桥将花费工人们一年多的时间。
It will _________ the workers over a year _________ _________ the flyover.
4. It's very nice _______ you to get me two tickets _________ the World Cup.
A. for, of B. of, for C. to, for D. of, to
Keys: 1. A 2. C 3. take, to, build 4. B
[简析]动词不定式作主语时,可以直接放在谓语动词前面的主语位置,也可以用先行词it作形式主语,而将真正的主语(不定式)置于后面。
常见的句式有: (1) It is +形容词(of sb)to do sth.
(2) It is +名词(for sb)to do sth
(3) It takes sb some time to do sth
(4) It is +形容词(for sb)to do sth.句式
(1) 中常用nice, kind, clever, good, right, wrong, foolish, careless等形容词,与介词of搭配,这些形容词常表述不定式逻辑主语的属性或性质;
句式(4)中常用hard, difficult, easy, important等形容词,与介词for搭配,表示不定式表示的动作、行为的性质。 注意:当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型
It's for sb.和 It's of sb. 1) for sb. 常用于表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult, interesting, impossible等:
It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2) of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish, right。
It's very nice of you to help me. 你来帮助我,你真是太好了。
for 与of 的辨别方法:用介词后面的代词作主语,用介词前边的形容词作表语,造个句子。如果道理上通顺用of,不通则用for。如:You are nice. (通顺,所以应用of)。He is hard. (人是困难的,不通,因此应用for。)
A. It is right to stop killing wild animals. B.It is the best time to visit USA in summer.
C.It is helpful for us to learn English well.
二、 动词不定式作宾语
1. He wants ______ some vegetables. A. buy B. buying C. to buy D. buys
2. Don't forget ______ your homework with you when you come to school.
A. to bring B. bringing C. to take D. taking
3. He found it very difficult ______. A. sleeping B. sleepsC. slept D. to fall asleep
Keys: 1. C 2. A 3. D
[简析]在want, like, agree, hope, wish, learn, begin, start, seem, decide, hate, choose, forget, remember等动词后面,可以接不定式作宾语。如果其后接形容词补足语时,则可以用it作形式宾语,而把作真正宾语的不定式放到后面
Sb + V + it (形式宾语)+ agj (形容词)+to+ V(宾语)注意无BE动词。
三、 动词不定式作宾语补足语
1. Robert often asks us ______ his Chinese, so his Chinese is much better than before.
A. help him B. to help him with C. to help with D. helps him with
2. Mr Li often teaches his Japanese friends ______ Chinese food.
A. cook B. cooks C. to cook D. cooked
Key: 1. B 2. C
[简析]不定式可以用作宾语补足语。后面可以接不定式作宾语补足语的动词有:ask, teach, expect, tell, allow等。
四、 动词不定式作状语
1. She went ______ her teacher. A. to see B. looks C. saw D. seeing
2. Meimei likes English very much. She does her best ______ English well.
A. learn B. learning C. to learn D. learns
Key: 1. A 2. C
[简析]go, come, try, do / try one's best等动词或短语动词作谓语时,其后常常可以接不定式作目的状语。
3. I'm sorry ______ that. A. hears B. hearing C. hear D. to hear
4. I'm sorry ______ you. A. trouble B. to trouble C. troubling D. troubled
5. My mother was very glad ______ her old friend.
A. to meet B. meet C. met D. meets
Keys: 3. D 4. B 5. A
[简析]"be +形容词+ to do sth"结构中的不定式作状语,常表示原因或方式。
6. The panda is so large that it can't go through the hole.(同义句)
The hole ______ ______ ______ ______ such a large panda to go through.
7. The ice on the lake was so thin that people couldn't skate on it. (同义句)
The ice on the lake wasn't ______ enough ______ people ______ ______ ______.
Keys: 6. is, too, small, for 7. thick, for, to, skate, on
[简析]在上述"to +形容词/副词(for sb)to do…"(太……而不能……)和"enough (for sb) to do…"(足以、足够……做……)结构中,不定式作结果状语。 sosuch......... that........如此......以致......的用法及与其它句型的互换. A. SbSth +be V+ so + adjadv (aan+adj +n)+that + can'tcouldn't......... = SbSth +be V+ too+adjadv(for+SbSth)+to+V ...... .....如此......以致....=太而.....不能..... B. so that to =in order to+V动词that+从句 ......为了以便于...... C. SbSth +be+ so + adj形容词+a an +n V +adv副词(so +littlemanymuch.... such +aan+adj +n 名形容词+名词)+that + canould =.SbSth +be V+adjadv +enough足够的 + to+V.....如此.....以致于.....=......足够.......干.......... 如:他太年轻了而不能去上学。
A. He is too young to go to school.
B. He is so young that he can’t go to school
C. He is n’t old enough to go to school.
D. He is so a young boy that he can’t go to school
( )1、The water is ____ dirty _____ the animals can’t drink it.
A. too . to B.so. that C. such ,that D. n’t ,enough to
( )2、The computer cost ____much money ___ I can’t afford to buy it.
A.too . to B.so. that C. such ,that D. n’t ,enough to
Key:B。因money前有 much所以不能用 such
五、 动词不定式作定语
1. Would you like something ______? A. drink B. drinking C. to drink D. drinks
2. I have a lot of homework ______. A. do B. doing C. did D. to do
3. He is not an easy man ______. A. get on B. to get on C. get on with D. to get on with.
Key: 1. C 2. D 3. D [简析]不定式作定语时,常放在被修饰的词语之后,与被修饰的词语为逻辑上的主谓关系或动宾关系;如果不定式的动词是不及物动词,其后要加上必要 的介词或副词,构成的短语动词相当于及物动词。
六、 不带to的动词不定式
1. We saw him ______ the building and go upstairs.
A. to enter B. enter C. entering D. entered
2. So much work usually makes them __ very tired. A. to feel B. feels C. feeling D. feel
3. Your father is sleeping. You'd better ______.
A. not wake up him B. not to wake up him
C. not wake him up D. not to wake him up
4. I was made ______ my homework in the afternoon.A. do B. doing C. to do D. did
Key: 1. B 2. D 3. C 4. C
[简析]1.在see, watch, hear, feel等感官动词和make, have, let等使役动词后面作宾语补足语的不定式不带to.但是在被动语态中,作主语补足语的不定式要带to(let没有被动语态)。2. 在"...had better+V/not +V最好干..."后面接不带to的不定式。 七、 动词不定式的否定形式
1. Mr Black asked the man ________ the queue.
A. not to jump B. to not jump C. didn't jump D. not jump
2. The old man told the child ______ noisy.
A. not be B. not to be C. to not be D. be not
3. There is going to ______ an important meeting tomorrow. Please try ______ late.
A. have, not to be B. have, not be C. be, not to be D. be, not be
Key: 1. A 2. B 3. C [简析]动词不定式的否定形式通常是在不定式符号to的前面加上not,如果是不带to的