II/ rewrite these sentences with IF

1. Drive carefully or you will kill yourself

-> if you don't drive carefully, you will kill yourself

2. Listen carefully to me or you won't be able to do the exercise

-> if you don't listen carefully to me, you won't be able to do the exercise

3. Don't use electricity to catch fish or you will be fined heavily

-> if you use electricity to catch fish, you will be fined heavily

4. Don't drive carelessly or you will cause an accident

-> if you drive carelessly, you will cause an accident

5. Don't eat too much in the evening or you will get fat

-> if you eat too much in the evening, you will get fat

6. Staying up too late will make you tired the next day

-> if you stay up too late, you will tired the next day

7. Without working harder you will fail in the test

-> if you don't work harder, you will fail in the test

II/ rewrite these sentences with IF

1. Drive carefully or you will kill yourself

-> if you don't drive carefully, you will kill yourself

2. Listen carefully to me or you won't be able to do the exercise

-> if you don't listen carefully to me, you won't be able to do the exercise

3. Don't use electricity to catch fish or you will be fined heavily

-> if you use electricity to catch fish, you will be fined heavily

4. Don't drive carelessly or you will cause an accident

-> if you drive carelessly, you will cause an accident

5. Don't eat too much in the evening or you will get fat

-> if you eat too much in the evening, you will get fat

6. Staying up too late will make you tired the next day

-> if you stay up too late, you will tired the next day

7. Without working harder you will fail in the test

-> if you don't work harder, you will fail in the test

Who - Whom - Whose 

Combine the sentences 

1. There are 3 nurses here. They are trying to save the patients. 

There are 3 nurses who are trying to save the patients here. 

2. The students are really nerves - racking. The teachers are going to hand out their test's result. 

The students who were going to hand out their test's result by teachers are really nerves - racking.

3. The manager of the company was such an intellectual man. His professional manner makes me admire. 

The manager of the company was such an intellectual man whose professional manner makes me admire. 

4. I can't understand why you always look up to that neighbor. He just a normal man. 

I can't understand why you always look up to that neighbor who just a normal man. 

5. The English teacher is going to go aboard. I need to say goodbye to him. 

The English teacher to whom I need to say goodbye is going to go aboard.

6. The toodles are being punished. They stole the biscuits on the fridge. 

The toodles who stole the biscuits on the fridge are being punished.

7. We were texting the owner of that shop. I had bought 3 items from him. 

We who had bought 3 items from him were texting the owner of that shop.  

8. The books are torn apart. Its content is quite good. 

The books whose content is quite good are torn apart.

9. The movie director was so busy. He had to take charge of a lot of responsibilities. 

The movie director who had to take charge of a lot of responsibilities was so busy. 

10. The refugees try to go to the other countries. Their homes are lost.

 The refugees whose homes are lost try to go to the other countries.

11. I do not know that singer. I saw her on television last night.

I do not know that singer whom I saw on television last night.

13. The neighbors are cutting plants. Their flowers give off such good smell.

 The neighbors whose flowers give off such good smell are cutting plants.

14. They are filming the tiger. I have never seen it before.

They are filming the tiger which I have never seen before.

15. The writer is so prolific. She has written 3 books this year.

The writer who has written 3 books this year is so prolific.

1,  If I hear the thief , I ...will catch............................(catch) him.
2,  I ...........would go.............(go) to the cinema if I had more time.
3,  I will call her if I ........find out.............(find out) her number.
4,  If they .........were..............(be) rich , they would stay in a more expensive hotel.
5,  She ........will feel...............(feel) ill if she eats so much.
6,  If he skis too fast , he ......will break.....................(break) his leg.
7, You ........will get..................(get) wet if you don’t take an umbrella.
8,  He .........will cause.......(cause) an accident if he drives too dangerously.
9,  They would get drunk if they .......drank.............(drink) too much beer.
10, If you steal the purse , they .....will arrest.........................(arrest) you.
11, If she .....explains...................(explain) him the situation he will understand it.
12, If he offered me a job ,  I ...will take..........................(take) it.
13, If I ..........invite..................(invite) Linda , I will have to invite Bob.
14, I won't talk to  him if he ...is...................(be) angry.
15,  If I find the book , I ........will send.................(send) it to you .

16.16, We won’t stay indoors if the weather ...is.....................(be) fine.
17,  I ...........would tell................(tell) you if you asked me.
18, She would feel better if she ........ate..................(eat) less.
19 If we miss the train ,  we ..........will take....................(take) a taxi.
20, If he won a lot of money he ......would fly...................(fly) to Paris.
21, If I am at home I ...........will watch....................(watch) the movie.
22, If we  eat ....................(eat) too much , we will get fat.
23,  If I .......were................ (be) you , I would start learning now.
24,  If Jack meets Tom he ....will tell......................(tell) him the truth.
25, If Nelly rides her bike more carefully , she will have (have) less accidents.

1. will catch

2. would go

3. find out

4. were

5. won't feel

6. will break

7. will get

8. will cause

9. drank

10. will arrest

11. explain

12. would take

13. invite

14. is

15. will send

16. is

17. would tell

18. ate

19. will take

20. will fly

21. will watch

22. eat

23. was

24. will tell

25. will have

1.Use the correct form of the verb(s) given to complete each sentences.

a.Recently Jo has been spending most of her time ....(do) research for a book on pioneer women

doing ( spend time doing something )

b.I don't like ...... (force) ....... (leave) the room ...... (study) whenever my roommate fells like .....(have) a party

to be forced / being forced ( like + to _v/ V-ing ) ( In this sentence, we use passive voice ). leaving / force doing sth / to study ( express purpose / having ( feel like doing sth )

c.I hope .... (award) a scholarship for the coming semester

to be awarded ( hope to do something and in this sentence, we use passive voice )

d.I don't enjoy ........(laugh) at by other people

being laughed ( enjoy doing something + passive voice )

e.If you hear any news, I want ..... (tell) immediately

to be told ( want to do sth + passive voice )

2.Give the correct tense or form of the following verbs.

a.If the students reviewed all lessons, they (do) ...would do............ the test well.

Conditional sentences type 2

b. After the thief (leave) .......... the house, the police (come) ..............

had left / came ( adverbial clause of time )

c.He (not go) ................ out last night, he (stay)................ at home

didn't go / stay ( last night )

d................your mother (read).................. book every night ? - No, she (watch) ...................TV

Does ,,,, read / watches ( every night )

e.We (save) ................ electricity if we didn't pay much money

would save ( conditional sentences type 2 )

3.Give the correct form of the words in brackets.

a.Fish and many other animals are killed by .........pollution/ polluta​nts..................... in their habitats. (pollute)

b.The polluteiond water results in the ............death............. of many aquatic animals and plants. (die)

2.Give the correct tense or form of the following verbs.

a.If the students reviewed all lessons, they (do) ......would do......... the test well.

b. After the thief (leave) ...left....... the house, the police (come) .......came.......

c.He (not go) .........didn't go....... out last night, he (stay)........stayed........ at home

d........Does.......your mother (read)............read...... book every night ? - No, she (watch) .......watches............TV

e.We (save) ......will save.......... electricity if we didn't pay much money

3.Give the correct form of the words in brackets.

a.Fish and many other animals are killed by ..........pollution .................... in their habitats. (pollute)

b.The polluted water results in the .........death................ of many aquatic animals and plants. (die)

1.Use the correct form of the verb(s) given to complete each sentences.

a.Recently Jo has been spending most of her time .doing...(do) research for a book on pioneer women

b.I don't like ..to force.... (force) ...leaving.... (leave) the room ..to study.... (study) whenever my roommate fells like ..having...(have) a party

c.I hope ..to award.. (award) a scholarship for the coming semester

d.I don't enjoy ...laughing.....(laugh) at by other people

e.If you hear any news, I want ...to tell.. (tell) immediately

2.Give the correct tense or form of the following verbs.

a.If the students reviewed all lessons, they (do) .......would do........ the test well.

b. After the thief (leave) ....had left...... the house, the police (come) .......came.......

c.He (not go) .....didn't go........... out last night, he (stay)........stayed........ at home

d.......do.........your mother (read).....read............. book every night ? - No, she (watch) .......watches............TV

e.We (save) .......would save......... electricity if we didn't pay much money

3.Give the correct form of the words in brackets.

a.Fish and many other animals are killed by .............pollution................. in their habitats. (pollute)

b.The polluted water results in the ........death................. of many aquatic animals and plants. (die)

III/ rewrite each of the sentences by using the adverb clauses of result "SO"

1. We decided to leave early because the party was boring

-> The party was boring so we decided to leave early.

2. She phoned the police because she saw she wanted man in a small coffee shop

-> She saw she wanted man in a small coffee shop so she phoned the police.

3. She walked slowly because her leg was injured

-> Her leg was injured so she walked slowly.

4. Mary looked happy because she has just got good marks

-> Mary has just got good marks so she looked happy.

PTHH: \(Al_2O_3+3H_2SO_4\rightarrow Al_2\left(SO_4\right)_3+3H_2O\)

Ta có: \(\left\{{}\begin{matrix}m_{H_2SO_4}=588\cdot5\%=29,4\left(g\right)\Rightarrow n_{H_2SO_4}=\dfrac{29,4}{98}=0,3\left(mol\right)\\n_{Al_2O_3}=\dfrac{20,4}{102}=0,2\left(mol\right)\end{matrix}\right.\)

Xét tỉ lệ: \(\dfrac{0,2}{1}>\dfrac{0,3}{3}\) \(\Rightarrow\) Al₂O₃ còn dư

\(\Rightarrow n_{Al_2\left(SO_4\right)_3}=0,1\left(mol\right)=n_{Al_2O_3\left(dư\right)}\)

\(\Rightarrow C\%_{Al_2\left(SO_4\right)_3}=\dfrac{0,1\cdot342}{20,4+588-0,1\cdot102}\cdot100\%\approx5,72\%\)

Ex1 : 

1.Air pollution can contaminate directly of bodies water and soil of  the surface 

2.We will waste so much paper if we don't save thousands of trees .

3.What đo you really got if air pollution would be bad ?

4. Polluted water causes sach as the death of fish and crab ,aqua,animals . 

5. If we recycle more rubbish ,it went to less landfill sites .

6.Agriculture has been impacted due to the overuse of chemicals on land pollution

7.Too much light is used in cities may cause of light pollution electric 

8. Water pollution is one of the most serious enviroment problems of our time

Question 17: Unless they invite me, I won't come.

Question 19: Unless you leave me alone, I'll call the police.

Question 20: Should you arrive at the office earlier than I do, please turn on the air-conditioner.

Question 21: If it is snowy weather, the children don't go to school.

Question 23: Unless you tell me the whole truth, I won't help you.

Question 24: Were I to take good care of it, the car wouldn't break down so often.

Question 25: If he is very bad-tempered, that's why his wife left him soon after marriage.

Question 26: Should you tell lies to your boss, you'll be fired at once.

Question 28: Were she to have a college degree, she could be employed.

Question 29: Were I to have enough money, I could go on a long holiday this year.

Question 31: If it stops raining, we will go out.

Question 32: Unless you give back my bicycle, I will call the police.

Question 33: If he is very slow, we won't give him such an important task.