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45 lượt xem Bạn đã được cộng thêm +1 điểm online, tổng điểm: 32 REVIEW GRADE 8- UNIT 9-10-11 I. MULTIPLE CHOICE 1. We don’t know the name of the injured person. A. burned B. sterile C. wounded D. unconscious 2. Don’t let the victim become chilled. A. looked tired B. fall asleep C. appeared hungry D. get cold 3. They filled the bucket with water from the river. A. container B. glass C. pot D. bowl 4. The boy fell his bike and hit his head on the...
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45 lượt xem Bạn đã được cộng thêm +1 điểm online, tổng điểm: 32

REVIEW GRADE 8- UNIT 9-10-11
I. MULTIPLE CHOICE
1. We don’t know the name of the injured person.
A. burned B. sterile C. wounded D. unconscious
2. Don’t let the victim become chilled.
A. looked tired B. fall asleep C. appeared hungry D. get cold
3. They filled the bucket with water from the river.
A. container B. glass C. pot D. bowl
4. The boy fell his bike and hit his head on the road.
A. of B. for C. off D. out
5. Cool it immediately so as to minimize tissue damage
A. reduce B. deepen C. widen D. enlarge
6. People use first aid in order to the victim's pain and anxiety.
A. cure B. treat C. increase D. ease
7. We can stop the bleeding by using a towel to cover the wound, then put on it.
A. pressure B. medicine C. bandage D. cloth
6. Don't give the victim any food or drink if he or she gets .
A. happy B. sad C. shock D. fainting
7. Cover the burned area with a thick dressing.
A. polluted B. sterile C. dry D. affected
8. Farmers collect household and garden waste to make .
A. compost B. floor coverings C. pipes D. glassware
9. My sister sold all the empty cans she collected funds for the orphans.
A. to take B. to rise C. to raise D. to use
10. You will get back your when you bring the cans back for recycling.
A. deposit B. account C. envelop D. payment
11. means not buying products which are over packaged.
A. Reuse B. Recycle C. Reduce D. Refund
12. is a long thin piece of cloth or paper used for tying round and protecting a wound.
A. Water packs B. Bandage C. Blanket D. Handkerchief
13. She has already her cup five or six times.
A. refilled B. reduced C. reviewed D. recycled
14. The cup of coffee kept her all night.
A. awake B. alone C. asleep D. alive
15. I think we should use such as banana leaves, lotus leaves to wrap things.
A. tree products B. tree leaves C. fruit skins D. trees
16. Plastic bags are difficult to be destroyed, so the amount of garbage will .
A. go down B. reduce C. increase D. go away
17. We felt very happy Tet.
A. since B. in C. on D. at
18. The farmers look for other work get more money for their family.
A. in order to B. so as C. in order that D. so that
19. You should put the affected part under a running cold tap when you have .
A. a shock B. a faint C. a burn D. a pain

20. You should elevate the patient’s feet above the level of the heart.
A. raise B. rise C. press D. reduce
21. A is used for carrying somebody who is sick or injured and who can’t walk.
A. bandage B. armchair C. wheelchair D. crutch
22. Typhoons, floods or droughts can easily a harvest.
A. destroy B. finish C. provide D. defeat
23. My father has worked for that company over ten years.
A. for B. since C. at D. in
24. One of the solutions to reduce the shopping garbage is using .
A. plastic bags B. cloth bags C. wood bags D. liquid bags
25. can take a patient to the hospital quickly.
A. A crutch B. An ambulance C. A wheelchair D. A scale
26. He tried to explain what he did persuade his customers.
A. in order that B. in out of C. so as to D. so as not as
27. Contact an organization like Friend of the Earth information.
A. for B. to C. with D. about
28. He picked the phone as soon as it rang.
A. on B. up C. in D. off
29. How about going to Vincom Center for dinner, Alex?
A. That’s sound interesting. B. That sounds interesting.
C. Not at all. D. Please go ahead.
30. is a type of bed used for carrying the sick or injured people.
A. Stretcher B. Ambulance C. Crutch D. Bandage
31. My sister-in-law fainted but the nurse helped her soon.
A. ease B. revive C. minimize D. cool

1
16 tháng 3 2020

Sao toán lại có Tiếng Anh :))

I : Choose the word whose underlined part is pronced differently from the others.1. A. health B. appear C. ready D. heavy2. A. tidal B. sight C. mineral D. describe3. A. though B. throw C. throught D. thoughtII: Choose the best answer among A,B,C or D.1. Tam ................ go fishing with his brother when he was young.A. used to B. is used to C. has used to D. was used to2. I don't know what to do this evening. what about ................... to the movise?A. go B. to go C. going D. goes3. I...
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I : Choose the word whose underlined part is pronced differently from the others.

1. A. health B. appear C. ready D. heavy

2. A. tidal B. sight C. mineral D. describe

3. A. though B. throw C. throught D. thought

II: Choose the best answer among A,B,C or D.

1. Tam ................ go fishing with his brother when he was young.

A. used to B. is used to C. has used to D. was used to

2. I don't know what to do this evening. what about ................... to the movise?

A. go B. to go C. going D. goes

3. I don't like doing the . ............... , especially cleaning the windows.

A. homework B. housework C. job D. occupation

4. My favorite . ............... is literature.

A. play B. game C. subject D. activity

5. My mother is very . ................... at cooking.

A. well B. good C. popular D. famouse

III: Give the correct from of the wrods in brackets to complete sentences.

1. Many ____________ families have to live in tents. (home)

2. He was very __________ of the work he had done.(pride)

3. Freedom of ___________ is one of the fundamental rights.(speak)

4. His sense of ___________ him from other students.(humorous)

IV: Give the correct form/ tense of the verbs.

1. They asked us (not go) ......... out alone at night.

2. The children were excited about (open) .......... their presents.

3. She .......... (just have) dinner.

4. My brother (walk) ............ down the street when it began to rain.

V: Complete the second sentence so that it has a similar meaning to the first one.

1. '' How much do you think it will cost? '' he said to me.

- He asked me____________________________________________ .

2. It takes minh 2 hours to do his homework every day.

- Minh spends ____________________________________________ .

3. I am sorry I called him a liar.

- I wish _________________________________________________ .

4. I'm sorry I don't live near my work.

- I wish ________________________________________________ .

5. I am sorry I didn't book a seat.

- I wish _________________________________________________ .

4
29 tháng 7 2017

Đây là chỗ để học toán chứ ko phải để học tiếng anh

29 tháng 7 2017

I

1.B

2.C

3.A

II

1.A , Used to

2.C Going

3.B .Housework 

4.C. Subject

5.B. Good 

III.

1. Many _homeless____ families have to live in tents

2. He was very _proud____ of the work he had done.

3. Freedom of _____speech__ is one of the fundamental rights.

4. His sense of __humor__ him from other students.

IV: Give the correct form/ tense of the verbs.

1. They asked us (not go) ...not to go... out alone at night.

2. The children were excited about (open) ..opening........ their presents.

3. She ..has just had........ (just have) dinner.

4. ko bk

V: Complete the second sentence so that it has a similar meaning to the first one.

1. '' How much do you think it will cost? '' he said to me.

- He asked me_how much I thought it would cost_

2. It takes minh 2 hours to do his homework every day.

- Minh spends _2 hours doing his homework every day

3,4,5 ko bk. Chỉ bk chừng đó thôi

29 tháng 2 2020

1. He is used to------------ up early in the morning.
A. get B. getting C. have gotten D. got
2. The boy was kept indoors----------- naughty.
A. to be B. have been C. for being D. when he
3. I shall never forget-----------with you to Paris last year.
A. staying B. to staying C. to stay D. stayed
4. I am looking forward to -----------you.
A. having seen B. seeing C. to see D. all are wrong
5. I am always remember------------ off the lights before I leave my house.
A. turning B. to turn C. turned D. being turned

16 tháng 4 2020

17. C -> of

18. B -> should always

19. A -> In my family

20. B -> had to

21. C -> giving

II/ Read the following passage and choose the best answer each of the questions.Coca- Cola is enjoyed all over the world. 1.6 billion gallons are sold every year, in over onehundred and sixty countries. The drink was invented by Dr John Pemberton in Atlanta, on 8 May1886, but it was given the name Coca-Cola by his partner, Frank Robinson. In the first year, only ninedrinks a day were sold. The business was bought by a man called Asa Candler in 1888, and the firstfactory was opened in Dallas,...
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II/ Read the following passage and choose the best answer each of the questions.
Coca- Cola is enjoyed all over the world. 1.6 billion gallons are sold every year, in over one
hundred and sixty countries. The drink was invented by Dr John Pemberton in Atlanta, on 8 May
1886, but it was given the name Coca-Cola by his partner, Frank Robinson. In the first year, only nine
drinks a day were sold. The business was bought by a man called Asa Candler in 1888, and the first
factory was opened in Dallas, Texas, in 1895. Coca- Cola is still made there. Billions of bottles and
cans have been produced since 1895.
1. The one who invented Coca Cola was ..................
A. Dr John Pemberton                   B. Frank Robinson
C. Asa Candler                               D. Dallas

2. What does the word “it” in line 3 refer to?
A. the world B. gallon C. country D. the drink
3. The first Coca Cola company was opened...................
A. in 1886 B. in 1888 C. in 1895 D. since 1895
4. Nowadays, Coca Cola is sold ........................
A. all over the world          B. in more than 160 countries
C. everywhere                   D. all are correct

5. Which of the following is not true?
A. Every year, 1.6 billion gallons of Coca Cola are sold.
B. Coca- Cola is still produced in Dallas.
C. Nowadays, people don’t want to buy Coca – Cola any more.
D. At first, people didn’t like Coca- Cola very much.

1
5 tháng 4 2020

Áp dụng tính chất tỉ số ta có: \(\frac{a+b+d}{a+b+c+d}>\frac{a+b}{a+b+c}>\frac{a+b}{a+b+c+d}\left(1\right)\)

Tương tự: với b,c rồi cộng vế theo vế có ĐPCM

AH
Akai Haruma
Giáo viên
17 tháng 7 2021

Lời giải:

Gọi biểu thức đã cho là $A$.

CM vế 1:

Ta có:

$\frac{a+b}{a+b+c}> \frac{a+b}{a+b+c+d}$

$\frac{b+c}{b+c+d}> \frac{b+c}{a+b+c+d}$

$\frac{c+d}{c+d+a}> \frac{c+d}{a+b+c+d}$

$\frac{d+a}{d+a+b}> \frac{d+a}{a+b+c+d}$

Cộng lại: $A> \frac{2(a+b+c+d)}{a+b+c+d}=2>1$

CM vế 2:

Ta thấy $\frac{a+b}{a+b+c}-\frac{a+b+d}{a+b+c+d}=\frac{-cd}{(a+b+c)(a+b+c+d)}< 0$ với $a,b,c,d>0$

$\Rightarrow \frac{a+b}{a+b+c}< \frac{a+b+d}{a+b+c+d}$

Hoàn toàn tương tự với các phân thức còn lại:

$\Rightarrow A< \frac{3(a+b+c+d)}{a+b+c+d}=3$

Ta có đpcm.