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2016年人教版七年級(jí)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(jí)寒假作業(yè)參考答案，歡迎參考，切勿盲目照抄哦。
數(shù)學(xué)
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(kuò)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(dāng)x=-1/2時(shí)，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(shè)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(diǎn)A′ 點(diǎn)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(gè)定點(diǎn) 這個(gè)定點(diǎn)
(2) 旋轉(zhuǎn)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(gè)圖形 兩個(gè)圖形 這點(diǎn) 兩個(gè)圖形成中心對(duì)稱 對(duì)稱中心 交點(diǎn)
(2)初始 旋轉(zhuǎn)中心 旋轉(zhuǎn)角 0°<α<360°
(3)180° 初始圖形 對(duì)稱中心
(4)略
4、圖自己畫
(1)成軸對(duì)稱 直線
(2)相等 相等 相同 不變
(3)兩對(duì)對(duì)應(yīng)點(diǎn) 中點(diǎn)的垂線
(4)相互重合 軸對(duì)稱圖形 直線
(5)過(guò)圓心的直線 無(wú)數(shù) 邊中點(diǎn)的中垂線 3 4 2
(6)略
5、 C 90° 點(diǎn)A 點(diǎn)E 線段CA 線段CE ∠A AC中點(diǎn)Q上 等腰直角
1、 畫圖全都自己畫吧
2、 畫圖略 (2)順時(shí)針旋轉(zhuǎn)119°或逆時(shí)針旋轉(zhuǎn)241°
3、 畫圖略 (1) 平移 AB與A′B′，AC與A′C′，BC與B′C′
(2)逆時(shí)針旋轉(zhuǎn)90° 90 90
(3)繞點(diǎn)O逆時(shí)針(順時(shí)針)旋轉(zhuǎn)180° (點(diǎn)O自己在圖上標(biāo)出)
1、 平移 旋轉(zhuǎn) 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(zhuǎn) 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(diǎn)C、點(diǎn)B、線段BC中點(diǎn)
18、 設(shè)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(dāng)……時(shí)，原式=8
15、 A-B=2 3A-2B=1 A=-3 B=-5
16、設(shè)有x克 x/(235+x)=6 % x=15
17、畫圖略
18、書上有
新學(xué)期預(yù)習(xí) 實(shí)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(shí) 偶次 1 正數(shù) 1 負(fù)
10、 3 162277660加上循環(huán)點(diǎn) 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(yǔ)
英語(yǔ)練習(xí)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(yè)
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(yè)
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(yè)
(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(yè)
二 自己填，因?yàn)槭前醋约簩?shí)際情況回答的問(wèn)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(jìn)大門的右側(cè)是問(wèn)訊處(formation desk)。鸚鵡館緊挨著問(wèn)訊處。如果需要飲料或想吃點(diǎn)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(duì)，獅子在前，老虎在后。斑馬在進(jìn)大門左側(cè)的第一個(gè)房子里。大象房正對(duì)著大門，而猴山則在挨著大象房的左角側(cè)。袋鼠館則在鸚鵡館過(guò)去，緊挨著大象房的右角側(cè)。最后，熊山在左側(cè)的獅虎山和猴山之間。
P47頁(yè)
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(yè)
(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(jìn)大門的右側(cè)是問(wèn)訊處(formation desk)。鸚鵡館緊挨著問(wèn)訊處。如果需要飲料或想吃點(diǎn)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(duì)，獅子在前，老虎在后。斑馬在進(jìn)大門左側(cè)的第一個(gè)房子里。大象房正對(duì)著大門，而猴山則在挨著大象房的左角側(cè)。袋鼠館則在鸚鵡館過(guò)去，緊挨著大象房的右角側(cè)。最后，熊山在左側(cè)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(jìn)大門的右側(cè)是問(wèn)訊處(formation desk)。鸚鵡館緊挨著問(wèn)訊處。如果需要飲料或想吃點(diǎn)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(duì)，獅子在前，老虎在后。斑馬在進(jìn)大門左側(cè)的第一個(gè)房子里。大象房正對(duì)著大門，而猴山則在挨著大象房的左角側(cè)。袋鼠館則在鸚鵡館過(guò)去，緊挨著大象房的右角側(cè)。最后，熊山在左側(cè)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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