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六年级上册暑假自学课(教科版)
Unit 4 Cat or Dog?
语法易错+巩固练习
学习目标
知识目标:掌握不定冠词 a 与 an 的区分,both 在句中的位置,unlike 的用法,It's better to... 提出建议的句型。
技能目标:能够在比较猫狗习性和选择宠物的情境中正确使用冠词、比较句型和表达建议的句型。
情感态度:学会用英语比较和分析,并尊重他人的不同观点。
语法易错01 不定冠词 a 与 an 的区分
语法点拨
a用在以辅音音素开头的单词前,an用在以元音音素开头的单词前。关键是看发音,不是看拼写!
My friend has a cat. It is an orange cat. 我朋友养了一只猫。它是一只橘猫。
a cat —— cat以辅音/k/开头,用a
an orange cat —— orange以元音/ɒ/开头,用an
特殊情况:
an hour —— h不发音,元音开头,用an
a useful book —— u发/juː/,辅音开头,用a
The cat pushed the cup off the table! 那只猫把杯子从桌子上推了下来!(the表示特指的那只猫)
【易错提示】
• 看发音,不看拼写!元音音素开头用an,辅音音素开头用a。
• ❌ a orange cat → ✓ an orange cat(orange以元音开头)
• ❌ an cat → ✓ a cat(cat以辅音开头)
• ❌ a hour → ✓ an hour(h不发音,元音开头)
• ❌ an useful book → ✓ a useful book(u发/juː/,辅音开头)
• 再次提到时用the:I have a cat. The cat is orange.(第一次提到用a/an,再次提到用the)
知识演练01
一、用a或an填空
1. My friend has ________ cat. It is ________ orange cat.
2. I saw ________ elephant at the zoo. ________ elephant was very big.
3. She has ________ hour to finish her homework.
4. Dogs need to go for ________ walk at least twice a day.
5. This is ________ useful book about pets.
二、单项选择
( ) 1. Yiming wants to get ________ animal. Maybe a cat.
A. a B. an C. the D. /
( ) 2. Look at ________ cat! It's playing with a ball.
A. a B. an C. the D. /
( ) 3. I had ________ idea! Let's go to the park.
A. a B. an C. the D. /
( ) 4. It took me ________ hour to clean the room.
A. a B. an C. the D. /
( ) 5. ________ dog is a man's best friend.
A. A B. An C. The D. /
语法易错02 both在句中的位置
语法点拨
both表示“两者都”,在句中的位置取决于动词类型:
both放在be动词之后:They are both cute. 它们都很可爱。
both放在实义动词之前:They both love playing with toys. 它们都喜欢玩玩具。
They both lose hair, too. 它们都会掉毛。(both在实义动词lose前)
Cats and dogs are both popular pets. 猫和狗都是受欢迎的宠物。(both在be动词are后)
记忆口诀:be后实前(be动词后面,实义动词前面)。
【易错提示】
• both的位置取决于动词类型!be动词后,实义动词前!
• ❌ They both are cute. → ✓ They are both cute.
• ❌ They are both love playing. → ✓ They both love playing.
• both也可以放在句首:Both cats and dogs lose hair.(both...and...句型)
• 注意区分:They both like cats.(他们两个都喜欢猫)vs. They like both cats.(他们两种猫都喜欢)
知识演练02
一、将both放入句中正确位置
1. Cats and dogs are popular pets. → Cats and dogs ________ popular pets.
2. They love playing with toys. → They ________ love playing with toys.
3. They lose hair. → They ________ lose hair.
4. Cats and dogs are cute. → Cats and dogs ________ cute.
5. They can be good friends. → They can ________be good friends.
二、单项选择
( ) 1. Cats and dogs ________ like to play.
A. are both B. both are C. both D. are all
( ) 2. They ________ cute animals.
A. both are B. are both C. both D. all are
( ) 3. My cat and my dog ________ sleep a lot.
A. are both B. both are C. both D. all
( ) 4. Cats and dogs ________ have four legs.
A. both B. are both C. both are D. is both
语法易错03 unlike的用法(与like区分)
语法点拨
unlike意为“与……不同、不像”,是like的反义词(like=像,unlike=不像)。
Unlike dogs, cats clean themselves. 与狗不同,猫会自己清洁。
Unlike cats, dogs need to go for a walk. 与猫不同,狗需要去散步。
Dogs are active, while cats are quiet. 狗很活泼,而猫很安静。(while表示对比)
对比三种表达对比的方式:
Unlike dogs, cats stay inside. 与狗不同,猫待在室内。(unlike+名词,表示对比)
Dogs like to go out, while cats like to stay in. 狗喜欢出去,而猫喜欢待在家。(while连接两个对比句)
They are both pets, but they are different. 它们都是宠物,但它们不同。(but表示转折)
【易错提示】
• unlike是介词,后面接名词或代词,不接完整句子!
• ❌ Unlike dogs like to go out, cats stay inside. → ✓ Unlike dogs, cats stay inside.
• unlike开头的短语后要加逗号!Unlike dogs, cats... (✓) Unlike dogs cats... (✗)
• 不要把unlike和dislike混淆:unlike=不像(介词),dislike=不喜欢(动词)
知识演练03
一、用unlike或like填空
1. ________ dogs, cats clean themselves.
2. ________ cats, dogs need to go for a walk.
3. ________ most animals, cats and dogs both love playing with toys.
4. ________ dogs, cats like to sleep during the day.
5. ________ cats, dogs are very active.
二、单项选择
( ) 1. ________ dogs, cats usually clean themselves.
A. Like B. Unlike C. Dislike D. Alike
( ) 2. ________ cats, dogs like to go for a walk.
A. Like B. Dislike C. Unlike D. Alike
( ) 3. Dogs are active, ________ cats are quiet.
A. unlike B. both C. alike D. while
( ) 4. They are ________ pets, but they are different.
A. unlike B. both C. while D. alike
语法易错04 It's better to... 提出建议
语法点拨
It's better to + 动词原形意为“最好……、……更好”,用于提出建议。
I think it's better to get a cat. 我觉得养猫更好。
It's better for you to get a dog because you have free time. 你养狗更好,因为你有空闲时间。
对比本单元的其他建议句型:
How about + doing:How about getting a cat? 养猫怎么样?
Maybe we can + do:Maybe we can get a cat. 也许我们可以养猫。
It's better to + do:It's better to get a cat. 养猫更好。
注意:It's better for someone to do... 中的for后接人称代词宾格。
【易错提示】
• It's better to后接动词原形,不加ing!❌ It's better to getting a cat. → ✓ It's better to get a cat.
• It's better for someone to do中,for后接宾格!❌ It's better for she to get a dog. → ✓ It's better for her to get a dog.
• 不要把It's better to和How about混用:It's better to get(✓) vs. How about getting(✓)。
• 对比:It's better to... 强调“更好的选择”;How about... 强调“提建议”。
知识演练04
一、用括号内词的正确形式填空
1. It's better ________(get) a cat if you live in a small flat.
2. It's better for ________(he) to get a dog.
3. It's better for ________(they) to choose a pet carefully.
4. I think it's better ________(keep) a cat because it cleans itself.
5. It's better for ________(we) to think about space first.
二、单项选择
( ) 1. It's better ________ a dog if you have a big garden.
A. get B. getting C. to get D. got
( ) 2. It's better for ________ to get a cat.
A. she B. her C. hers D. his
( ) 3. I think it's ________ to keep a cat.
A. good B. better C. best D. well
( ) 4. It's better for us ________ about habits before getting a pet.
A. think B. thinking C. to think D. thought
综合提升(共计52分)
一、单项选择(每小题2分,共10分)
( ) 1. Yiming wants to get ________ orange cat.
A. a B. the C. an D. /
( ) 2. Cats and dogs ________ love playing with toys.
A. are both B. both C. both are D. all are
( ) 3. ________ dogs, cats clean themselves.
A. Like B. Unlike C. Dislike D. Alike
( ) 4. It's better for her ________ a dog.
A. get B. getting C. to get D. got
( ) 5. I have a cat. ________ cat is very cute.
A. A B. An C. The D. /
二、用所给词的正确形式填空(每小题2分,共10分)
1. My friend has ________(a/an) orange cat.
2. Cats and dogs are ________(both/all) popular pets.
3. ________(Unlike/Like) dogs, cats usually stay inside.
4. It's better for ________(we/us) to think about it first.
5. Dogs need to go for a walk at ________(little/least) twice a day.
三、按要求完成句子(每小题2分,共8分)
1. They are both cute animals.(改为否定句)
_______________________________________________________________________
2. Unlike dogs, cats clean themselves.(用like改写句子,保持意思不变)
_______________________________________________________________________
3. It's better to get a cat.(对to get a cat提问)
_______________________________________________________________________
4. I saw an elephant. ________ elephant was very big.(填入恰当的冠词)
四、完形填空(每小题2分,共12分)
Yiming wants to get a pet, but he can't decide. Should he get 1. ________ cat or a dog? First, he thinks about space. His home is small. It's better 2. ________ him to get a cat. Cats 3. ________ stay inside most of the time. Dogs, 4. ________ cats, need to go for a walk. Then he thinks about habits. Cats like to sleep during the day and play 5. ________ night. Yiming is a light sleeper. A cat might wake him up! So maybe a dog is 6. ________. Dogs sleep at night. Finally, Yiming decides to get a small dog.
( ) 1. A. a B. an C. the D. /
( ) 2. A. of B. for C. to D. with
( ) 3. A. can B. need C. both D. like
( ) 4. A. like B. unlike C. alike D. both
( ) 5. A. in B. on C. at D. during
( ) 6. A. good B. well C. better D. best
五、阅读理解(每小题2分,共12分)
Ms Wills is a new teacher from Canada. She wants to get a pet, but she can't decide between a cat and a dog. Here is some information about her. She lives alone in the city. There are many tall buildings in her area. The nearest park is a 10-minute walk from her home. She is usually busy in the morning but gets home early. She has a lot of free time in the evenings and on weekends. She is not a light sleeper. Her students are helping her decide. Tom says, "I think it's better for you to get a cat because you live in a flat with no garden. Cats don't need much space." Lily says, "I don't agree. You have free time in the evenings and on weekends. It's better to get a dog. You can take it for a walk to the park." Ms Wills says, "You both make good points. Let me think about it."
( ) 1. Where does Ms Wills live?
A. In a house with a garden. B. In a flat in the city. C. Near a big park.
( ) 2. Why does Tom think a cat is better for Ms Wills?
A. Because cats are cheaper. B. Because she has no garden. C. Because cats are cuter.
( ) 3. Why does Lily think a dog is better?
A. Because Ms Wills has free time and a park nearby.
B. Because dogs are more friendly.
C. Because Ms Wills doesn't like cats.
( ) 4. What does Ms Wills think of their ideas?
A. She agrees with Tom only. B. She agrees with Lily only. C. She thinks both are good.
( ) 5. What does "light sleeper" mean?
A. Someone who sleeps lightly and wakes up easily.
B. Someone who sleeps very deeply.
C. Someone who doesn't sleep at night.
( ) 6. Which is TRUE about Ms Wills?
A. She has a big garden. B. She is busy in the morning. C. She is a light sleeper.
参考答案
【知识演练01】
一、1. a; an 2. an; The 3. an 4. a 5. a
二、1. B 2. C 3. B 4. B 5. A
【知识演练02】
一、1. are both 2. both 3. both 4. are both 5. both
二、1. C 2. B 3. C 4. A
【知识演练03】
一、1. Unlike 2. Unlike 3. Like 4. Unlike 5. Unlike
二、1. B 2. C 3. D 4. B
【知识演练04】
一、1. to get 2. him 3. them 4. to keep 5. us
二、1. C 2. B 3. B 4. C
【综合提升】
一、1. C 2. B 3. B 4. C 5. C
二、1. an 2. both 3. Unlike 4. us 5. least
三、1. They are not both cute animals. / They aren't both cute animals. 2. Dogs don't clean themselves like cats. 3. What is it better to do? / What is better to get? 4. The
四、1. A 2. B 3. A 4. B 5. C 6. C
五、1. B 2. B 3. A 4. C 5. A 6. B
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