Ôn tập môn Tiếng Anh 9

 REVIEW ENGLISH 9
 Unit 6: THE ENVIRONMENT
 1. Conditional sentence:
 Câu điều kiện gồm có 2 mệnh đề “ Main Clause” and “If Clause”. If clause or 
 Clause of condition là mệnh đề phụ chỉ điều kiện. Nó được nối với mệnh đề 
 chính bởi liên từ If.
 There are 3 types conditional sentences
 Type Main Clause If Clause
 1. Real Will
 Can + V ( bare- inf. )
 Shall
 May Simple Present
 ( modal verbs)
 Simple Present
 2. Unreal in Could
 Present Would + V ( bare – inf. ) Past Subjunctive
 Might ( V2; be chia were )
 3. Unreal in Could
 the past Would + have + P. P Past Perfect
 Should ( had + P. P )
 might
 Ex: If I have time, I’ll help you.
 If I were you, I would come here
 He would have passed his exam if he had studied hard
• Unless = if not ( nếu không / trừ khi )
Trong mệnh đề điều kiện ta có thử thay thế If bằng Unless 
 Ex: If you do not study hard, you will fail in the exam
 Unless you study hard, you will fail in the exam.
• Note: Khi ta đổi 1 câu điều kiện với If sang Unless nhớ lưu ý trường hợp mệnh 
 đề If ở thể khẳng định không được đổi sang thể phủ định khi dung Unless mà 
 phải đổi mệnh đề chính sang thể ngược lại.
 Ex: If we had more rain, our crops would grow faster.
 Unless we had more rain, our crops wouldn’t grow faster.
 If you study hard, you will not fail in the exam
 Unless you study hard, you will fail in the exam.
 Exercise 
 I. Put the verbs in brackets in correct tenses
 1. If I see him, I ( give ) ________________ him a gift.
 2. If I had a typewriter, I ( type ) ________________ it myself.
 3. If I had known that you were in hospital, I ( visit ) _________________ you.
 4. You could make better progress if you ( attend ) ___________ class regularly.
 5. If I ( known ) ______________ his telephone number I'd give it to you. Structure: 
 Because / Since/ As + S + V
 Ex: He came ten minutes late because he missed the first bus.
 Since / As he missed the first bus, he came ten minutes late.
 Because of + Noun
 Noun phrase
 Gerund
 Ex: Because of the rain, we have cancelled the party.
 Exercise:
 I. Supply either “ because” or “ because of” as appropriate:
 1. It was difficult to deliver the letter ____________ the sender had written the 
 wrong address on the envelope.
 2. We decided to leave early ________ the party was boring.
 3. Rescue attemps were temporarily halted _______ the bad weather.
 4. Paul may not go to the football game _________ his grades.
 5. They visited their friends often ___________ they enjoyed their company
 II. Rewrite these sentences by using “because”.
 1. He couldn’t meet you because of being busy.
 .
 2. She went to bed early because of her sickness.
 .
 3. We spent the whole day in the garden because of lovely weather.
 .
 4. I can’t play volleyball because of my height.
 .
 5. We can’t swim in this part of the river because of highly polluted water
 III. Rewrite these sentences by using “because of”
 1. She can’t work hard because she is very old.
 .
 2, He likes her because of she is very beautiful.
 .
 3. He broke the vase because he was careless.
 .
 4. He left school because his life was hard.
 .
 5. I went to bed early because I feel tired.
Unit 7: SAVING ENERGY.
 1. Make suggestion:
 - How about + V- ing .?
 - What about 
 - Why don’t we + bare inf. ?
 - Let’s + bare inf. 
 - I + suggest + v- ing .
 - I + suggest + ( that ) S + should + bare inf. . A. but B. because C. however D. although
9. Hoa missed the bus this morning, ________ she went to school late. 
 A. but B. so C. however D. and
10. Dioxins are dangerous chemicals________ they can cause cancer and birth defects. 
 A. but B. however C. because D. therefore
11. The children ate too much sweet ________ they get toothache easily. 
 A. so B. and C. but D. because 
12. Organically grown fruits and vegetables may not look as perfect, ________ it’s good 
for your health. 
 A. so B. and C. however D. therefore
13. Thousands of gallons of water were polluted ________some body spilled the motor 
oil and it swept into the ground. 
 A. because B. so C. and D. however 
14. ________ we use less electricity, power plants will burn less fuel. 
 A. If B. So C. Therefore D. Because
15. Old newspapers can be used to make newspapers, ________ you can collect them and 
bring them to the recycling center. 
 A. so B. because C. and D. therefore
16. Don’t use Styrofoam or aerosol spray ________ they both contain 
chlorofluorocarbons. 
 A. so B. because C. and D. or
17. Pesticides are chemicals poisons used by farmers to kill weeds and insect pests, 
________ some pesticides are still in the food when it gets to the market. 
 A. so B. because C. and D. however
18. We use paper whenever we can, ________ the backs of envelopes or the clean backs 
of notebook sheets are great for scrap paper.
 A. so B. because C. but D. however
18. He didn’t go to school yesterday; ______.he had to ask his friends what they learned 
then. 
 A. but B. therefore C. and D. so
20. The countryside is very peaceful ________ the air is so fresh. 
 A. but B. and C. therefore D. because
21. Ba missed the Math test yesterday. ________, he will have to do it next week. 
 A. therefore B. but C. and D. because
22. My sister is very tired: ________, she still has to cook dinner for the family. 
 A. so B. however C. and D. as
23. She doesn’t look so pretty ________.She has soft voice. 
 A. and B. but C. so D. however
24. They don’t like the opera ________ it doesn’t look sound interesting. 
 A. and B. but C. because D. so
25. Daisy is very nice: ________, all her friends love her very much. 
 A. and B. so C. therefore D. because
26. Can you turn_________ the lights? It’s too dark. 
 A. on B. off C. in D. for
27. What are you looking ________? My picture book. I’ve lost it. 
 A. on B. off C. for D. after
28. Who is going to __________ your children when you’re at work?
 A. look for B. look up C. look after D. look out Ex: This is the book which I like best.
 The hat which is red is mine.
• Note: Khi which làm tân ngữ cho động từ đứng sau nó Which có thể được bỏ.
Ex: This is the book I like best.
 The dress ( which ) I bought yesterday is very beautiful.
 4. That: That là đại từ quan hệ chỉ cả người lẫn vật. That được dùng thay 
 thế cho WHO, WHOM, WHICH trong mệnh đề quan hệ xác định ( 
 Defining relative clause)
 Ex: That is the book that I like best.
 My father is the person that I admire most.
 Exercise:
I. Choose the best answer.
1. The people_______live in Viet nam speak Vietnamese.
 A. which B. whom C. who D. when
2. Do you know the man_______you met yesterday?
 A. when B. who C. which D. whose
3. She studies well_______she is busy.
 A. because B. since C. although D. and
4.Many tourists enjoy festivals in Viet Nam _______ they don’t speak Vietnamese.
 A. though B. when C. if D. because
5. They are still worried about the dinner party_______ they have ordered the food and drinks 
from the restaurant nearby.
 A.even B. though C. so D. if
6..Nha Trang is a place _______ you can find many beautiful beaches.
 A. which B. that C. where D. from which
7.Nguyen Du was the writer _______ wrote “ Kieu”.
 A. who B. whom C. whose D. which
8.They have to go to school _______ it is raining.
 A. though B. because C. and D. when 
9.We are very hungry _______ we can not eat anything.
 A. although B. and C. but D. so
10. _______ we don’t have a special day to celebrat our Mother and Father, we give them 
presents on their birthday.
 A. Because B. When C. So D. But
11.John received a postcard this morning _______ really upset him.
 A. what B. and C. which D. when 
12.Tom, a boy _______ I went to school with, is ill in hospital.
 A. who B. that C. whose D. him
13.I recently went back to the town _______ I was born.
 A. that B. where C. which D. when 
14.He lost all his money gambling, _______ really annoyed his wife.
 A. that B. who C. what D. which
15.I’d like to go to the beach with you_______I have to finish my housework now.
 A. but B. because C. and D. for
16.Sam always remembers _______ in the garage when he comes to his office.
 A. parking B. being parked C. to park D. to be parked 
17.Even though Trung did his best, he failed the exam. _______, he has to do the test again. 
 A. However B. Therefore C. Because D. But
18.This park _______ a lot since I last came here in 2000.
 A. has changed B. changes C. is changing D. changed
19.To prevent wasting water, remember to turn _______ the faucets after using it.
 A. on B. of C. off D. in A. which B. whom C. when D. who
II. Use “ALTHOUGH” to combine each pair of these sentences.
1. He often tells lies. Many people believe him. 
2. She didn’t eat much. She was hungry. 
3. He is over 60. He doesn’t wear glasses. 
4. It got dark. They continued to work. 
5. She kept on studying. It was noisy. 
6. He ate all the fruits. They were green. 
7. We could do the test. It was very difficult. 
8. He is very strong. I’m not afraid of him.
9. The plane took off. The weather was bad. 
10. He didn’t stop his car. The traffic lights turned red.
11. They went on a picnic. The weather was very bad. 
III. Combine each pair of sentences into one by using a suitable Relative Pronouns.
1. Have you ever spoken to the people? They live next door. 
2. It’s a book. It will interest children of all ages. 
3. The people keep having all night parties. They live next door. 
4. These are the keys. They open the front door and back door. 
5. Here’s an article. It might interest you. 
6. Where are the eggs? They are in the fridge. 
7. Have you got something? It will get ink out of the carpet. 
8. Where’s the girl? She sells the tickets. 
9. Half of the people didn’t appear. They were invited. 
10. The festival is called Easter. It is in the late March or early April.