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备战2023年中考英语（2轮）·归纳与变式数学运算

更新时间：2023-03-31 浏览次数：49 类型：二轮复习

一、真题演练

1. (2021·四川) There are 50 students in Class1, they went to different places on Children's Day (each student only went to one place). According to the chart, ________ students went to Qionghai Wetland Park.

Lushan Mountain

Luoji Mountain

Qionghai Wetland Park

The Moon Lake Park

30%

40%

?

10%

A . fifteen B . twenty C . five D . ten

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2. (2020·哈尔滨) Forty students in Class One, Grade Nine are fond of reading novels written in English. Different students like reading different novels. According to the form below, ________ students like reading novels written by British writers.

The name of the novel	Treasure Island	The Old man and the sea	Oliver Twist	Tom Sawyer
The writer's nationality	British	American	British	American
Percentage（百分比）	25%	40%	20%	15%

A . 24 B . 22 C . 18

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3. (2016·哈尔滨) A survey(调查) about the activity Helping the Homeless Children was made in Lucy and Lily's class. They and their 48 classmates took an active part in this activity. According to the form below， _____ students gave away school things.

A . 24 B . 15 C . 25

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二、变式练习

4. (2022·哈尔滨模拟) Daming's favorite hobby is making model planes. To make a new model plane, he needs to buy some materials with only 200 yuan. According to the list below, he can pay if he buys the cheapest materials instead of more expensive ones.

Part	Plane wing	Wheel	Plane body	Others parts
Number	2	3	1	For one plane
Price/each(￥)	20-40	10-20	50-70	30-50

A . ￥110 B . ￥150 C . ￥50

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5. (2023·松北模拟) The Greens get $6000 in all from their work and they use $3000 for helping others every month. The form below shows they give ________ to children half a year.

Disabled people

Homeless children

The old

30 %

40%

30%

A . $10800 B . $18000 C . $7200

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6. On National Day, Jack, a middle school student, went to Harbin Wanda Amusement Park with his three classmates. According to the price list, they saved________ of the cost on usual days.

Adult

(age 60 and above)

Adult

(age under 60)

Child

(age 6-17)

Child

(age under 6)

Free

￥200

￥150

Free

October 1st: 20% off

A . ￥480 B . 20% C . two fifths

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7. (2022·哈尔滨模拟) Mr. Wang and his wife will take their two children to see a film this evening. They have to pay at least_______ yuan for the tickets according to the information below.

The Battle at Lake Changjin(《长津湖》)
Day show	Child or adult (￥30)
Evening show	Child or adult (￥45 )
Family Packages(组合)
10:00 am; 2:00 pm		3 tickets (￥80)
7:00 pm		3 tickets (￥125)

A . 140 B . 170 C . 180

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8. (2022·哈尔滨模拟) A busy restaurant needs three waiters for its business hours. The restaurant provides Chinese food and Western food. If Alan gets the job, he can make_____ every week.

We Want You!

Working Days

Working Hours

Salary(薪水)

Wednesday to Sunday

8 a. m. to 4 p.m.

$10 every hour with free meals

A . $ 400 B . $ 560 C . $ 800

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9. (2022·哈尔滨模拟) Decathlon Sports is having a big sale. Wu Lei wants to buy two pairs of running shoes. One is produced in China. The other is a foreign brand. He should pay yuan at least if he wants to get a gift.

Brand	Hongxing Erke	361°	Adidas	New Balance	Asics	Mizuno
Area	China	China	Germany	America	Japan	Japan
Price	￥300	￥400	￥700	￥600	￥500	￥800
Notes: Chinese brand 25% off, international brand 20% off. And add another 18 yuan, you'll get a gift.

A . 625 B . 860 C . 643

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10. (2022·哈尔滨模拟) Mrs. Green will buy something on sale today. All the things will be 20% off. According to the table, she may save_____ dollars.

Shopping List

Potatoes(2 kilos)

Tomatoes(1 kilo)

Eggs(3 kilos)

Meat(2 kilos)

Usual Price( $/kg)

1.5

3

5

2.5

A . $5.2 B . $1.2 C . $0.6

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11. (2022·哈尔滨模拟) To help students know about their sleeping habits, No. 7 Middle School made a survey among 150 students in Grade Nine. According to the chart below, _____ students can sleep at least 8 hours each night if they get up at 6 a. m.

Time to sleep	Before 10 p. m.	At 10 p.m.	Between 11 and 12 p. m.	After 12 p. m.
Percentage(百分比)	14%	26%	43%	17%

A . twenty-one B . sixty C . thirty-nine

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12. (2022·哈尔滨模拟) Wang Li wants to use a VIP card to buy things in Yuanda Shopping Mall. Look at the discount(折扣) information below. He needs to pay _____ yuan if he buys two pairs of jeans and a sweater.

Things	Jeans	Sweater
Price	200 yuan	100 yuan
Discount	20% off	10% off

A . 280 B . 380 C . 410

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13. (2022·哈尔滨模拟) We did a survey about protecting the environment and saving resources (资源). Look at the form. Class 1 and Class 2 have the same number of the students. Then students in Class 2 ride or walk to school.

	Recycling things	Reusing things	Riding or walking to school	saving electricity
Class 1	10%	40%	12	20%
Class 2	25%	30%	？	10%

A . 35 B . 25 C . 14

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14. (2022·哈尔滨模拟) During the Spring Festival, John and his parents will go to Shanghai for a trip. According to the price of the hotel, he will pay at least ______ for five nights.

Single room	Double room	Triple room (三人间)
160 yuan (one night)	220 yuan (one night)	260 yuan (one night)
※ If you pay for over 1,000 yuan, you can have 10％off.

A . 1,900 yuan B . 1,170 yuan C . 1,300 yuan

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15. (2022七上·哈尔滨月考) The students are having a party And they are wearing four different colors of coats green black brown and red ones. If 60%of the students are wearing the brown coai1s. how many of the students are wearing the red ones?

Green

Black

Brown

Red

5

10

30

?

A . 15 B . 5 C . 27

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16. (2022九上·香坊开学考) There is a big sale in a supermarket. Alice bought one for each kind of the following things. According to the table below, she saved _________in all.

Things	Dress	Jeans	Shoes	Bag
Original price（原价）	¥300	¥180	¥240	¥50
Discount（折扣）	20% off	40% off	50% off	10% off

A . ¥513 B . ¥345 C . ¥257

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17. (2022八上·哈尔滨开学考) Here is a survey (调查) about how 1,000 students from No.2 Middle School go to school on weekdays. One third of the students going to school by bike are girls. Then according to the form below, ________ boys go to school in the same way.

By bus

By bike

By car

On foot

40%

36%

9%

A . 150 B . 100 C . 50

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18. (2022八下·哈尔滨月考) During the Spring Festival, Li Lei got a red envelop with 500 yuan. He spent his lucky money on his hobbies. According to the following table, how much money was left?

Watching a movie in Wanda Cinema with some friends	50 yuan/each
Buying 3 storybooks	20 yuan/each
Buying 2 rooster stamps	50 yuan/each
Notes: One of his friends paid for him when watching the movie.

A . 190 yuan B . 240 yuan C . 340 yuan

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19. (2022八下·哈尔滨期中) Hobbies are like the rainbow. They can make our life colorful. There are 40 students in Class 1, Grade 8. According to the table, there are students doing sports as a hobby on weekends.

Reading	Listening to music	Jogging	Shopping	Playing basketball
1/4	1/5	5 students	7 students	?

A . 10 B . 13 C . 15

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20. (2022·哈尔滨模拟) With the development of science, many kinds of robots can help us do a lot of work. For example, deebots (地宝) are smart enough to help us sweep and mop(拖地) the floor. Linda wants to buy two deebots on special days, one is for herself and the other is for her mother. She should save yuan than usual.

The price on usual days

￥1300

The price on special days

￥900

Good news: If you spend more than 1000 yuan in buying deebots, you

will enjoy a 10% off for the whole list on special days.

A . 1800 B . 980 C . 1620

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