2016年人教版七年級寒假作業(yè)答案

以下是小編為大家收集整理的2016年人教版七年級寒假作業(yè)參考答案，歡迎參考，切勿盲目照抄哦。

數(shù)學

1、 =-0.5 =2

2、略

3、略

4、-1.50062×10^4

5、-0.00203

6、-1/(1+2a) -3/(2ab 2(x-y)

7、<-2.5

8、擴大5倍

選擇題 ABC

12、 (1)=b/(a+b) (2)=3/(x-1) (3)=【(x-y)2/xy】×【xy/(x+y)2】 = (x 2-2xy+y 2)/(x 2+2xy+y 2) (4)=(32x^7)/(9 y^3)

13、 x-12=2x+1 x=1

14、(1) x帶入原式= (-2/5 2k)/-6/5k = 8/5 k=-5

(2)原式=x 2/(x 2+x) 當x=-1/2時，原式=-1

15、原式的倒數(shù)=3(x 2+1/x 2-1)=-9/4

16、原式=(a+ab+abc)÷(a+ab+abc)=1

17、設小李x，小王x+2。 60/(x+2)=48/x x=8 x+2=10

1、(1)右 4 下 5 下 5 右 4 點A′ 點B′ ∠C′ 線段B′C′

(2)相同距離

(3)相等 相等 相等

(4)形狀

(5)距離

(6)略

2、圖自己畫啊

(1)一個定點 這個定點

(2) 旋轉中心 相等 相等 相等

(3)大小 形狀

(4)略

3、圖自己畫

(1)180° 另一個圖形 兩個圖形 這點 兩個圖形成中心對稱 對稱中心 交點

(2)初始 旋轉中心 旋轉角 0°<α<360°

(3)180° 初始圖形 對稱中心

(4)略

4、圖自己畫

(1)成軸對稱 直線

(2)相等 相等 相同 不變

(3)兩對對應點 中點的垂線

(4)相互重合 軸對稱圖形 直線

(5)過圓心的直線 無數(shù) 邊中點的中垂線 3 4 2

(6)略

5、 C 90° 點A 點E 線段CA 線段CE ∠A AC中點Q上 等腰直角

1、 畫圖全都自己畫吧

2、 畫圖略 (2)順時針旋轉119°或逆時針旋轉241°

3、 畫圖略 (1) 平移 AB與A′B′，AC與A′C′，BC與B′C′

(2)逆時針旋轉90° 90 90

(3)繞點O逆時針(順時針)旋轉180° (點O自己在圖上標出)

1、 平移 旋轉 翻折

2、 位置 形狀、大小

3、 90°

4、 圓心

5、 8

6、 是 是

7、 H I O X

8、 平移 旋轉 翻折 大小 形狀

9、 C

10、 D

11、 C

12、 畫圖略

13、 畫圖略

14、 畫圖略

15、 畫圖略

16、 畫圖略

17、 點C、點B、線段BC中點

18、 設EC為x cm。 8∶5=x∶4 x=6.04

1、2a^7 (y 2x 2)/x 2y 2

2、3/2m 2x -2/(x+3)

3、xy(y-x) (x+1)(x-1)(x+3)(x-3)

4、(-3y 3)/x 2z

5、6

6、等邊三角形

7、169/4 π

選擇題 CB

10、(1)=2a/(a-b) (2)=1/a2b 2

11、x=-1 x=5/4

12、畫圖略 S陰=8×10.04/2-5×6.04/2=25.06 cm 2

13、畫圖略

14、原式=2/(x+1)2 當……時，原式=8

15、 A-B=2 3A-2B=1 A=-3 B=-5

16、設有x克 x/(235+x)=6 % x=15

17、畫圖略

18、書上有

新學期預習 實數(shù)

1、 a<4

2、 9 ±9

3、 0

4、 3-√7

5、 -0.5

6、 ±a

7、 ≥1

8、 略

9、 2 實 偶次 1 正數(shù) 1 負

10、 3 162277660加上循環(huán)點 選擇題 BCAC

15、 11

16、 (1)x=±30 (2)x-1=±0.25 x=5/4

17、 a=1.5 m=a2=9/4

18、 4-2x≥0

英語

英語練習一

worry about

be divided into

worry too much

keep secrets

fargue with sb.

forgive sb. for sth.

show off

give up easily

take care of

pay attention to

different kinds of ideas

devote to charity

modest generous

unlucky shy

hard-working inpatient

impossible unfair

inactive full

dishonest incorrect

weak stupid

to save

not meeting

to eat

explaining

putting

butterfiles

planning

unfair

leader

energetic

What is he like

What does Sam often dream about

Which women is our new teacher

The were divided into 4 groups by Mr zhang

His young sister is taken care of by Peter

Your star sign is divided by your birthday

His mother is so kind that shi helps others

There is nothing wrong with Jim's mind

He is clever enough to solve the problem

Can you tell me how to get to the nearest shop

AAABB ADBAD AC

CBCDA DABCD

CACCCAB

作文略

P41頁

一 helicopter abacus ferry ambulance handcuffs purse cycling trainer astronaut

二 one hundred and fifty-eight

two thousand and one

fourty-five percent

zero point twenty-five

six point zero three

sixty degree

six point fifty-nine

one thousand five hundred and seventy-one

one/sixth

three/fifth

P43頁

一 play football wash his face play the violin make phone calls to sb. arguing fishing

二 (1)1,000、120、852 (2)15、79、17、27、2,005 (3) 3/10、3/5、3/7、7/9 (4) 50%、75% (5)25°、160°

(5)0.78、11.45、21.13、57.22、6.5

P44頁

(1)Sun is the only star in our salar system.

(2) It gives us heat and light.

(3) The moon is just 380,000 kilometers away.

(4) It looks much smaller because it is very for away.

(5) It takes four years for light to reach us from Alpha Centauri.

P45頁

二 自己填，因為是按自己實際情況回答的問題

P51-53

1、The boy went to the recepttion.

2、The boy is at the recepttion .

3 The boy is far from the recepttion.

4、The cat jumped onto the table.

5、The cat on the table

6、The cat fall off the table.

7、It is above the car.

8、It is below the car.

9、The boy is in front of the car.

10、The boy is behind the car.

11、The policeman is behind two cars.

12、The boy walks into the house.

13、The girl is in the house.

14、 The boy walks out of the house .

The most important qualities：helpful,friendly,kind

Reasons:I think make friends should care about each other,help each other.

Feb 1: to clean up the house and prepare for reunion dinner;

Feb 1 till mid night: to dine till 2359 hours for the new year;

Feb 2: get lucky money

Feb 2: to pay our senior member of the family visit and wish them a very prosperous new year;

Feb 3: To visit our relatives and friend for new year;

P54

走進大門的右側是問訊處(formation desk)。鸚鵡館緊挨著問訊處。如果需要飲料或想吃點東西，小吃部(cafeteria)就在鸚鵡館的后面，所以有些嘈雜。獅虎山與鸚鵡館相對，獅子在前，老虎在后。斑馬在進大門左側的第一個房子里。大象房正對著大門，而猴山則在挨著大象房的左角側。袋鼠館則在鸚鵡館過去，緊挨著大象房的右角側。最后，熊山在左側的獅虎山和猴山之間。

P47頁

was/were cooked knew swam got taught leaved felt smelt drove ran thought kept bought began did

cost found throught stood spake came gave heard sold hurt saw steal took slept sit met brought flew

woke chose lost read rose wore

P48頁

(1) Wat's your favourite sports?

(2) A man steal a purse from a tourist.

(3) They did cought the thief.

(4) Our class consist of 40 students.

(5) I aim the torch at his eye.

P49 (橫著寫)

1、 I attend school everyday. I attended church yesterday.

I will be attending a concert tomorrow.

I have to explain why I am late everyday.

I explained the question to her two days ago.

I will be explaining the details next week.

The thief steals everyday.

He stole the wallet last Sunday.

They will be stealing the painting tomorrow.

She likes to invite people to her house everday.

She invited me to her party yesterday.

She invited me to her party yesterday.

She will be inviting me to her party tomorrow.

2、 $75 $60 $15

P51-53

1、The boy went to the recepttion.

2、The boy is at the recepttion .

3 The boy is far from the recepttion.

4、The cat jumped onto the table.

5、The cat on the table

6、The cat fall off the table.

7、It is above the car.

8、It is below the car.

9、The boy is in front of the car.

10、The boy is behind the car.

11、The policeman is behind two cars.

12、The boy walks into the house.

13、The girl is in the house.

14、 The boy walks out of the house .

The most important qualities：helpful,friendly,kind

Reasons:I think make friends should care about each other,help each other.

Feb 1: to clean up the house and prepare for reunion dinner;

Feb 1 till mid night: to dine till 2359 hours for the new year;

Feb 2: get lucky money

Feb 2: to pay our senior member of the family visit and wish them a very prosperous new year;

Feb 3: To visit our relatives and friend for new year;

P54

走進大門的右側是問訊處(formation desk)。鸚鵡館緊挨著問訊處。如果需要飲料或想吃點東西，小吃部(cafeteria)就在鸚鵡館的后面，所以有些嘈雜。獅虎山與鸚鵡館相對，獅子在前，老虎在后。斑馬在進大門左側的第一個房子里。大象房正對著大門，而猴山則在挨著大象房的左角側。袋鼠館則在鸚鵡館過去，緊挨著大象房的右角側。最后，熊山在左側的獅虎山和猴山之間。

P55

I always take a shower.

I do the homework very often

I often play football

sometimes I watch the TV

I never go shopping

I don't often go to bed early o sometimes I go to bed early

1/The largest mammals in the world.

2/weight

3/White Rhinoceeros

4/100 feet long

5/8000 pounds

6/White Rhinoceeros

In new year,my family want to travel，but every one have different ideas. so i look for many books,and i want go to beijin,because i think there is our capital city,i like the Great Wall and the imperial palace.and some food tastes delicious every year,a lot of visitors come to there. I think we have a good travel.

1、The boy went to the recepttion.

2、The boy is at the recepttion .

3 The boy is far from the recepttion.

4、The cat jumped onto the table.

5、The cat on the table

6、The cat fall off the table.

7、It is above the car.

8、It is below the car.

9、The boy is in front of the car.

10、The boy is behind the car.

11、The policeman is behind two cars.

12、The boy walks into the house.

13、The girl is in the house.

14、 The boy walks out of the house .

The most important qualities：helpful,friendly,kind

Reasons:I think make friends should care about each other,help each other.

Feb 1: to clean up the house and prepare for reunion dinner;

Feb 1 till mid night: to dine till 2359 hours for the new year;

Feb 2: get lucky money

Feb 2: to pay our senior member of the family visit and wish them a very prosperous new year;

Feb 3: To visit our relatives and friend for new year;

P54

走進大門的右側是問訊處(formation desk)。鸚鵡館緊挨著問訊處。如果需要飲料或想吃點東西，小吃部(cafeteria)就在鸚鵡館的后面，所以有些嘈雜。獅虎山與鸚鵡館相對，獅子在前，老虎在后。斑馬在進大門左側的第一個房子里。大象房正對著大門，而猴山則在挨著大象房的左角側。袋鼠館則在鸚鵡館過去，緊挨著大象房的右角側。最后，熊山在左側的獅虎山和猴山之間。

P55

I always take a shower.

I do the homework very often

I often play football

sometimes I watch the TV

I never go shopping

I don't often go to bed early o sometimes I go to bed early

1/The largest mammals in the world.

2/weight

3/White Rhinoceeros

4/100 feet long

5/8000 pounds

6/White Rhinoceeros

In new year,my family want to travel，but every one have different ideas. so i look for many books,and i want go to beijin,because i think there is our capital city,i like the Great Wall and the imperial palace.and some food tastes delicious every year,a lot of visitors come to there. I think we have a good travel.

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