II. Use the correct form of the word given to complete each sentence.

1. One ton of recycled paper saves ………………………… eight trees (approximate)

2. The children enjoy playing ……………………….. toys. (wood)

3. People use first – aid to ease the victim’s pain and ………………………… (anxious)

4. Relax for a few minutes and you’ll feel more ………………………… (comfort)

5. Miss White is a ……………………………. from “ Friends of the Earth ”. (represent)

6. Cool the burn …………………………. So as to minimize tissue damage. (immediate)

7.The injured was carried out of the football ground on a ………………….. (stretch)

8. Doctors have succeeded in finding a better ……………………………… (treat)

9. Always wear a safety helmet to ………………… the danger of head injuries. (minimum)

10. The injured man was rushed to the …………………… room in an ambulance. (emerge)

I. Choose the best word or phrase to complete the sentence.

1. Would you please give me a sterile dressing ? - …………………………………….. .

Yes, please. No,thanks. Sure. Here you are. I’d love to but I don’t have one.

2. Farmers collect household and garden waste to make …………………………………

compost floor coverings pipes glassware

3. Where is the best place …………………………. a compost heap ?

at in on for

4. I put my hat on ……………………………………. protect my face from the sunlight.

in order in order to for so as not to

5. Please let the boy ………………………….. on this chair.

sit to sit sat sitting

6. We can stop the bleeding by using a towel to cover the wound, then put …………… on it.

pressure medicine bandage cloth

7. Please get me a …………………………… He get a bad cut on his leg.

blanket wheelchair chart scissors

8. What do they ……………………………. garbage for ?

do make recycle use

9. Why do people in some areas ……………... dry tea leaves ? – To keep mosquitoes away.

heat fry burn cook

10. I am very pleased …………………………. you have done if perfectly.

for with that how

11. A new stadium …………………………….. next year.

will build will be build will be built will building

12. We can reuse the plastic bottles after they are ………………………………. with water.

used recycled dried washed

13. One of solutions to reduce the shopping garbage is using ………………………………

plastic bags cloth bags wood bags shopping bags

14. When someone gets fainted, leave him or her …………………………………… flat.

lie lying lay laying

15. Shall I get you a bandage for your cut ? - …………………………………………………

Yes, please. Many thanks. Don’t do that. I’m hurt. I don’t need any. You’re so kind

Mn bt câu nào thỳ help hộ mk nhé !

a) Tính thể tích khí oxi ở đktc cần thiết để đốt cháy hết 3,2 gam khí metan.

b) Tính khối lượng khí cacbonic tạo thành.

( C = 12 , H = 1 , O = 16 )

1) \(\frac{1}{x-2}\) + 3 = \(\frac{3-x}{x-2}\)

2) \(\frac{3x-2}{x+7}\) = \(\frac{6x+1}{2x-3}\)

3) \(\frac{x+3}{x+1}\) + \(\frac{x-3}{x}\) = 2

Đốt cháy hoàn toàn 27,4g Bari trong không khí thu được Bari oxit.

a. Viết PTHH

b. Tính khối lượng sản phẩm tạo thành

c. Tính thể tích không khí cần dùng để đốt cháy hết lượng Bari trên ( Biết rằng thể tích khí oxi bằng 1/5 thể tích không khí )