Dựa vào các yếu tố ảnh hưởng đến sinh trưởng của vi sinh vật giải thk:

1: giải thk tại sao có những vi khuẩn khuyết dưỡng ko thể sống đc trên môi trường nuôi cấy tối thiểu nhưng khi đc nuôi cấy chung vs 1 chủng sinh vật nguyên dưỡng khác thì cả 2 đều sinh trưởng và phát triển bth

2:tại sao sữa chưa lại đc coi là thực phẩm bổ dưỡng và an toàn

3:Vì sao khi rửa rau sống nên ngâm 5-10 phút trong nước muối hoặc thuốc tím pha loãng

4:Trình bày cơ sở khoa học của việc bảo quản thực phẩm bằng cách ngâm muối,đường hoặc phơi khô.

tối nay 8h em ktra 15p môn anh 10 full TN ai jup e đc ko ạ.

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4. Rewrite the following sentences using the word in the blacket

Eg: This train is more convenient than all the others. (most)
This train is the most convenient.

1. The living-room isn't as big as the kitchen. (bigger)
The kitchen …………………………………………………………………..
2. No one in my class is as tall as Tam.

=> Tam is the…………………………………………………………………

3. The dress is cheaper than the skirt. (expensive)
The skirt ………………………………………………………….. the dress.
4. This crossword is the easiest. (difficult)
This crossword ………………………………………………………………..

5. I've never read a more romantic story. (most)
It's the …………………………………………………………………...read.

6. My house is bigger than your house.

=> Your house is...........................................................................................

7. The black car is cheaper than the red car.

=> The red car………………………………………………………………..

8. This film is more interesting than that one.

=> That film is………………………………………………………………

9. My kitchen is smaller than yours.

=> Your kitchen………………………………………………………………..

10. My grandmother is older than every one in my family.

=> My grandmother is the…………………………………………………………

3. Fill in the gaps with the comparative or the superlative form of the adjectives given.

1. This armchair is …………………………... than the old one. (comfortable)

2. Trains are …………………………... than aeroplanes. (slow)

3. I bought the…………………………... souvenir I could afford. (expensive)

4. In this classroom there are …………………………... girls than boys. (many)

5. Ann is the …………………………... child in the family. (young)

6. That TV set is the …………………………... of all. (cheap)

7. You are …………………………... here than there. (safe)

8. Fifi is …………………………... than Kate. (pretty)

9. This is the …………………………... film i have ever seen. (exciting)

10. Tim is …………………………... than Peter. (talented)

2. Fill in the gaps with the superlative form of the adjectives given.

1. It is the …………………………... shop in town. (large)

2. Monday is the …………………………... day of the week. (bad)

3. Ben was the …………………………... person in his family. (noisy)

4. Sam is the in the …………………………... class. (popular)

5. Which is the …………………………... subject at school? (difficult)

6. Jim is the …………………………... player in the football team. (good)

7. Elephants are the …………………………... animals. (heavy)

8. Let's pick the …………………………... apple of the tree. (big)

9. Mary is the …………………………... girl in the class. (thin)

10. That is the …………………………... sofa in our house. (comfortable)

1. Fill in the gaps with the comparative form of the adjectives given.

1. A rock is …………………………... than a leaf. (heavy)

2. Our house is …………………………... than yours. (big)

3. The princess is …………………………... than the witch. (beautiful)

4. Tom is a …………………………... student than Mary. (good)

5. Bicycles are …………………………... than motorbikes. (safe)

6. July is …………………………... than January. (hot)

7. A lion is …………………………... than a cat. (dangerous)

8. Helen is …………………………... than Mary. (happy)

9. Computers are …………………………... than telephones. (expensive)

10. I think golf is …………………………... than football. (boring)

IV. Use the word given in capitals at the end of each line to form a word that fits in the gap in the same line.

1. The parents of the groom go to the fortune teller to see what date and time is best for them to ____________________ the wedding ceremony. (celebration)

2. ____________________, the reception occurs at their houses, but now many families hold wedding parties at the restaurant. (tradition)

3. On that day, the groom's family and relatives visit the bride and her family with round lacquered boxes known as betrothal presents which are covered with red cloth and carried by ___________________ girls or boys. (marry)

4. Wedding ceremonies are less _______ now than they used to be in the past. (complicate)

5. To many ____ street vendors, the success of their day is determined by how it starts and by their first customer. (superstition)

III Choose the best answer A, B, C, or D to complete the sentences.

1. In some Asian countries, the groom and bride-------------their wedding rings in front of the altar.

A. change B. exchange C. give D. take

2. In Scotland, the bride’s mother may invite the wedding guests to her house to-------------off all the wedding gifts.

A.Show B. turn C. put D. get

3. On the wedding day, the best man is expected to help the -------------

A. bride B. groom C. guest D. bridesmaid

4. In the past, the___________and engagement ceremoniest took place one or two years before the wedding.

A. propose B. proposing C. proposal D. proposed

5. Superstitions ------------- an important part in the lives of many people in Viet Nam.

A. take B. act C. occupy D. play

6. Viet Nam has kept a variety of superstitious ------------- about daily activities.

A. believe B. believing C. beliefs D. believable

7. Traditionally, most Vietnamese people never __-------------_the floor during the first three days of the new year.

A. sweep B. paint C. polish D. resurface

8. Viet Nam is a country situated in Asia, where many mysteries and legends-------------

A. origin B. originate C. original D. originally

9. The British usually pay a lot of _------------- to good table manners and expected to use knives, forks, and spoons properly

A. money B. care C. attention D. compliment.

10. In the U.S, children can choose their own partners even if their parents object ------------ their choice.

A. to B. for C. against D. with

11. People from ------------ cultures bring language skills, new ways of thinking, and creative solutions to difficult problems.

A.diverse B. diversity C. diversify D. diversification

12. No one knows the real origins of the Chinese representing the cycles of the lunar year.

A. stars B. space C. horoscope D. cycle

13. In every culture, there are basic standards for social ------------ such as personal space

distance, eye contact, amount of body language displayed in public.

A. relationship B. relation C. reaction D. interaction

14 .UN World Day for Cultural Diversity for Dialogue and Development on May 21^st is a

chance to celebrate the cultural diversity of people around us, and find out more about what we have------------.

A. in common B. as usual C.as normal D. alike

15. Many people believe that the first person who visits their home on the first day of the New Year will......... their life.

A. effect B.affect C. change D. afford

I. Find the word which has a different sound in the part underlined.

1. A. pleasant B. health C. healthy D. breathe

2. A. come B. roll C. comb D. grow

3. A. fear B. realize C. pear D. near

4. A. inventor B. president C. adventure D. genetics

5. A. adopt B. front C. column D. borrow