Eighth grade winter vacation homework answer
First unit
First, the basic knowledge:
1. Add some words below.
Impinging (e), (then) and beating around the bush (mo) (all the fourth tones)
Fu (Fu) Xiao (two sounds) Zang (one sound) You (one sound) You (one sound)
2. Write Chinese characters according to Pinyin.
Cold brocade tile plum (gravel) box eggplant (basket)
Make Cai Ye Miao Yao (malaria)
The answer to the multiple-choice question is:
3.C 4 explosive B 5。 B
Third pages
Third, interesting language: crossing the sea to save Wei and Zhao, stealing pillars to avoid disasters and robbing the west.
10( 1) Baishi
(2) Ten thousand.
(3) San Qian
(4) 850.
P4
Multiple choice
3.c
4.D
5.B
the second question
Desire. Shocked. thunder and lightning
Confused. Stupid. Sigh.
Fidgety, condolence, reprimand.
P6
Sanqu Chinese
1 said it to make everyone happy.
Give up trying before giving up.
Four recitation accumulation
Keqin
front and back
Life and death
Misfortune and happiness
P7 Unit 3
basic knowledge
Cangzixiao
Zhang
Carve a curtain and cut a gap.
B D
p8
5. Swift and chic, sad and desolate
Yes, because the former is optimistic and worth learning.
6. The language of Chinese stone arch bridge is refined and accurate; The language of this article is elegant and comfortable.
P9
Sanqu Chinese
B C D A
Four recitation accumulation
Chengtian Temple, Yueyang Tower, Yellow Crane Tower, Humble Room
P 10 unit 4
Ni xi LAN
face
Blame and correct mistakes; Amphibious (qi) yin (Yan) red
A C D
P 1 1
6. bionic hand
Vividly write the magic of bionic hand to attract readers.
7. No, this word means time range. If it is deleted, the meaning of the sentence becomes that it will be done at any time, which is inconsistent with reality. This word embodies the accuracy of explaining language.
8. Digital Science accurately shows the number of people with physical disabilities in China, highlighting the great role of bionic hands.
P 12
10.2345
1 1.( 1) sunset (2) sunset (3) sunset (4) sunset (5) sunset (6) sunset (7)
P 13 Language Unit 5
1.
Yang xi? ti？ Is it?
Zhu? n d？
2( 1) building: track (2) supporting: along; Along; Follow; Lean against ...
(3) Regulations: Plan (4) Tianjin: Ferry (5) Genus: Class
(6) Fan: Duo (7) Xin: Aroma means noble character.
(8) Scholar: a learned person (9) Appropriate: Appropriate (10) Cause: subordinate, subordinate.
p 15
(1) Tianjia (2) Yuzhou
③ Jiangnan ④ Dongcheng
P 16
1.s？ tuān gě qi？ xěsh？
2.( 1) Ben: gallop bar (2) Genus: verb, connection
(3) rest: dissipation (4) falling: falling
(5) but: only (6) only: almost
(7) He: Wash the forest with water. (7) Strong: Do your best.
1 1.
(1) New Year's Day (2) Spring Festival (3) Lantern Festival (4) Children
12
(1) to (3) Yan (4) and (5) Yan
Mathematical answer:
Pythagoras number (1)
1.C2 d 3.60/ 13 cm4. 13 5。 Connect b, d, 36cm2.
6.C
Pythagoras number (2)
1.C 2。 B 3。 A 4. 130 5.24
real number
1.A 2。 C
3. Positive and negative radical symbol 5 4.2 times radical symbol 2 5.0
5. 1
6.( 1)2 times the root number 2
(2) Root number 3
(3) 14+4 times the root number 3
(4)6
P22 Translation and Rotation
One: AB
Two: 7.5 60
P23
6.(2) Solution: ∫ positive △ABC
? AB=BC
∫△ABD rotates△△△ ABC.
? △ABD?△ABC
? AB=BC=AD=DC
? The quadrilateral ABCD is a diamond.
P28
Linear function (1)
1.2.3.DAC
4.( 1)(2)(5)(6) (2)
5. (2/3,0) (-3,0) I wonder if it is right to increase the area.
6.(0,6)
P28
7 (2) X:(- 1.5，0)
Y:(0，2)
(3) 2.5
(4) 1.5
(5) Y is greater than 0 when X is negative, and Y is less than 0 when X is an integer or 0.
P29
Linear function (2)
1 A
two dimensions
3 -3
4 1.2.3
5 Y=2x+6
6 A runs fast.
1.5 sec/m
7 10 yuan
1.2 yuan/kg
50 kg
P30
1 A
2 B
3 B
4 degrees celsius
5.0/0
6 (3,2)
7 stretching
8 4
P3 1
1 D 2 B 3 C
4 X=0.5 Y=- 1
X=-3 Y=0
5 X=800 Y=500
Page 32 BC 2 unknown -2 3
P33
1.C 2。 B 3。 A
4.66 5.28
6.75? 10-80? 9=30 points
Page 33 DBA 18 24.5
Page 34, CDAB 60?
35 The fourth question:
1.
Because angle Abe+angle EBC=90 degrees, angle EBC+ angle CBF=90 degrees.
So angel Abel = angel ·CBF
AB=BC, angle ABE= angle CBF, BE=BF, triangle ABE congruent triangles CBF.
2.
Because the angle ABE=50 degrees
So EBG angle =90 degrees -50 degrees =40 degrees.
BE = BF because be is perpendicular to BF.
So the triangle BEF is an isosceles triangle.
That is, angle BEG=45 degrees
So the triangle EGC=45 degrees +50 degrees =85 degrees.
P36
3. Let Party A and Party B walk x and y kilometers respectively, and the following formula can be listed from the title:
(2+2.5)x+2.5y=36
3x+(3+2)y=36
solve
x=6，y=3.6
4.( 1)
Open the paper and connect the BO.
According to the meaning in the title, Germany divides the blog vertically.
So, DB=DO
Let OD=x, then DB=x and ad = 8-X.
Because OABC is rectangular, so
4 (square) +(8-X) (square) =X (square) * (square) is small 2.
X=5
So OD=5
(2)
diamond
Certificate:
Because Angel ·DBO = Angel ·BOE
Again, Germany split up vertically.
So DB=OE=OD=5.
So it is a diamond.
(3)
Let F(m, n)
Then m (square) +n (square) =4 (square)
(5 meters) (square) +n (square) =3 (square)
The solution is F(3.2, -2.4)
E(5.0)
Enter the equation y=ax+b
0=5a+b
-2.4=3.2a+b
solve
A= four thirds.
B=- one-twenty-third
Y= four thirds x one twenty-third.
English:
P37
Happy 1
one
What a beautiful song it is!
What a fast boy he is!
What a fat girl she is!
What a beautiful school this is!
What a good boy he is!
What a happy boy he is!
two
Cleaned up
Be taken away
It's maken
Be displayed
Be invited
Not given
It's Sloan; be found
three
turtle
tiger
Black paint; (Japan) Japan
Mexico
tiger
Sierra Leone
P39。 Me:
Best Western Hotel Haville
More oldest and oldest
Bigger, biggest, more expensive, most expensive.
Smarter, smarter, more famous, most famous.
Worse, worse, worse.
More careful, more careful, less and least.
Slower, slowest, thinnest, thinnest
Healthier, healthiest, easier, easiest
It's getting hotter and hotter.
largest
P40 I:
He plans to take a vacation in July.
We hope to see you soon.
Agree to do sth. Agree to do sth. No result.
Refuse to do sth. She borrowed money from him, but he refused.
Finish sth. Finish sth. (Don't type later ... remember to add it yourself) Have you finished reading that magazine?
Dong is good at enjoying ... I like reading very much.
Practice, practice ... I practice my swing.
Suggest giving a hint. I suggest that we go to the park on Sunday.
Admit doing it. Admit ... I admit breaking the window.
Refuse to do sth ... He denied having seen these watches before.
Arrange for the arrangement ... I have arranged a taxi.
They offered to help me.
Like+do like .. She likes playing the piano.
Hate to do regrets ... he hates being isolated from her.
He hates being isolated from her.
Do you remember her telephone number?
I remember telling you about it.
Forgot to do sth. Forgot to do sth. I forgot to post the letter.
Forget to do sth. Don't forget to post the letter.
p43
Verb past tense past participle
Used to be
Cook, cook, cook
Know know know know.
Swan swam.
Get
Teaching thought
Left to left
felt
Sniff
Drive drive drive.
Run run.
Thinking, thinking.
Keep, keep, keep
shopping
Start, start.
Do it.
Cost cost cost
Find find find.
Throw, throw, throw.
Stand. Stand.
Verb past tense past participle
Talk, talk, talk
come on
Give, give, give
Hear hear hear hear.
Send send send.
Hurt hurt hurt hurt.
See see see see.
Secretly secretly
Take it away. Take it away.
Sleep, sleep, sleep
Sit down.
Meet meet
Bring bring bring
Fly, fly and fly
Wake up, wake up, wake up.
Select, select, select
Lost, lost, lost.
Read read.
Rise, rise, rise.
Wear and tear
P50
go to bed early
Get up early every day to exercise.
Eat less fatty food and drink more milk.
Don't eat too many sweets, which will lead to obesity.
When the weather is hot, drink more water.
Don't drink, drink more water.
Add appropriate clothes according to your own changes in winter, and don't catch a cold.
Eyes don't watch TV much, so choose the right time to watch TV.
Playing games is not good for body and mind. We need to play less.
Science multiple choice questions answer:
Subject 1
1.ACBD increased the precipitation by 100%.
P66 1。 ① The electrical conductivity of fruit is related to its acidity; ② The electrical conductivity of fruit has nothing to do with its quality.
2. Lightning rod B is hiding in the building or squatting on the spot.
Topic 2
When P55 pressure is constant, the stress area decreases and the pressure increases.
BBCCBD
When the stress area pressure 490 increases and the density of water remains unchanged, the deeper the pressure, the greater the internal pressure of water.
P57
1.B 2。 The warm 40 high pressure cold front is clear and dry.
Theme 3
Second, 1, B 2, (1)A (2)A(3) advection, 50%-60%.
3. (1) High pressure system, cold front system, sunny day.
(2) Jiangsu.
Theme 4
Second,
1、A 2、B 3、C 4、D
Third,
(1) is insoluble and opaque.
(2) It will kill a large number of fish and destroy the ecological balance.
Theme 5
First, ellipsis.
Second, 1, C 2, B 3, C 4, C 5, d.
Topic 6
1、C 2、B 3、C 4、C 5、D
P62 Fourth, the diabetes diet includes staple foods such as japonica rice and Fuqiang powder; Foods with low energy, such as vegetables, Chinese cabbage, cucumber, wax gourd, tomato, tofu, soybean sprouts, etc. There is also a small amount of lean meat and eggs. Diabetic patients should avoid eating pure sugar foods such as glucose, sucrose and maltose.
Topic 7
Second, 1, C 2, C 3, D 4, b.
5.( 1) unconditional reflection.
(2) invalid.
(3) conditions.
Theme 8
Second, 1, D 2, d
P66
1.① The electrical conductivity of fruit is related to its acidity; ② The electrical conductivity of fruit has nothing to do with its quality.
2. Lightning rod B is hiding in the building or squatting on the spot.
Theme 9
First, ellipsis.
2. 1. Conclusion 1: The electrical conductivity of apple is related to the taste of apple. The sweeter the apple, the stronger the electrical conductivity.
Conclusion 2: The electrical conductivity of apples has nothing to do with the mass and volume of apples.
2.( 1) B。
(2) lightning rod.
(3) throw away the metal objects on your body first, and then hide in the building.
Lishe
Unit 1:
1. True or false, true or false
2.( 1)⑤④②①③
(2)②①③⑤④
ABEF
CDG
70 pages
Airborne Equipment Failure (airborne equipment failure)
BCDG
Unit 2:
No, no, no.
History Page 73 Connection
A company ② Company 1
Erlian ④ Lian2
Three companies (① and ④)
Four companies, three companies, three companies.
Unit 3:
No, right, wrong, right, right, right.
2. One company, two companies and three companies.
Erlian ③ Lianlian No.2
Sanlian ① Lian 1
History unit 2
P73(2) The Nile regularly floods-developed agriculture-formation of villages-handicrafts-small countries on both sides of the Nile-originally unified ancient Egyptian countries-across the land. ...
1Building 27
History P74:
Two. 1.
(1) map 1, ancient Egypt-hieroglyphs, pyramids, solar calendar.
② Figure 2, Ancient India-Buddhism, digital symbols.
(3) Figure 3: Babylon-cuneiform characters, hanging gardens, geometric figures, lunar calendar.
2. Gautama? Siddhartha
Buddhism is the earliest creation of the three Buddhists. What do you preach? All beings are equal? It was introduced to China around AD 400.
3.
& lt code of hammurabi >:
It reflects that slave owners had supreme rights at that time.
History Unit 4 Page 80
Wrong, wrong, right, right, right, right.
Confucius Xuanzang Li Bai
Yuefei Huang Daopo Bi Sheng
Question 5: Battle of Red Cliffs is in 208, and the three countries are in 220-280. Battle of Red Cliffs is the foundation of the tripartite confrontation.
Question 8: During the Northern Song Dynasty,
History P75
2.
1.
Figure 1 hieroglyphics
Figure 2 Cuneiform characters
Figure 3 Oracle Bone Inscriptions
2.
The shapes and natural phenomena of animals in life.
3.
It shows that human beings have moved towards civilization.
3. Nile BC3500
Lianghe BC3500
Ganges in India in 2500 BC
The Yangtze River and the Yellow River in 2070 BC
(2) Promote crop growth and make the land fertile and suitable for human habitation.
I recommend it carefully.