Bài giảng Tiếng Anh 9 - Topic 16: Conditional sentences

 TOPIC 16: CONDITIONAL 
 SENTENCES A. PRESENTATION Type 1: Điều kiện có thể xảy ra ở hiện tại, tương lai
Form:
If + S + V(simple present), S +will/ can/ may....+ Vo
= S +will/ can/ may....+ Vo + if + S + V(simple present). 
Eg1: If it is sunny, I will go fishing.
Eg3:He will buy a new car if he has enough money. Type 2: Điều kiện không có thật ở hiện tại, hoặc khó
 xảy ra trong tương lai.
 Form: 
If + S + V( simple past), S +would/ could/ might... + Vo
= S +would/ could/ might... + Vo + if + S + V( simple past). 
Note: Ta có thể dùng “was/ were” cho các ngôi I/ he/ she/ it ( trong Mệnh đề If) và
 chỉ được dùng “were” cho “If I were you” để đưa ra lời khuyên.
Eg1: If I were you, I would not do this.
Eg2: She would buy a villa if she had much money. B. PRACTICE SAVE THE 
 OCEAN Bắt đầu!
 1.If I could speak Spanish, I _____ 
 next year studying in Mexico.
 C. would have D. would 
A. will spend B. had spend
 spent spend
 HẾT 
 GIỜ Bắt đầu!
 2.If you _______ careful with 
 electricity, you may get a 
 shock.
A. don’t B. aren’t C. wouldn’t D. won’t
 HẾT 
 GIỜ Bắt đầu!
 3.Will you be angry if I _____ 
 your pocket dictionary?
 D. were to 
A. stole B. have stolen C. steal
 steal
 HẾT 
 GIỜ Bắt đầu!
 4.John would be taking a great 
 risk if he _____ his money in 
 that business.
A. would B. had 
 C. invested D. invests
invest invested
 HẾT 
 GIỜ Bắt đầu!
 5. If the wall weren't so high, 
 he _____ it up to take his ball 
 down.
A. climbed B. climb C. is climbing D. could climb
 HẾT 
 GIỜ Bắt đầu!
 6. If you press that button, what 
 _____?
A. would C. would have 
 B. will happen D. happen
happen happened
 HẾT 
 GIỜ I. Choose the best answer to complete each sentence.
1.If I could speak Spanish, I ___________ next year studying in Mexico.
A.will spend B. had spent C. would have spent D. would spend
2.If you ___________ careful with electricity, you may get a shock.
A.don’t B. aren’t C. wouldn’t D. won’t
3.Will you be angry if I _____ your pocket dictionary?
A. stole B. have stolen C. steal D. were to steal I. Choose the best answer to complete each sentence.
4.John would be taking a great risk if he _____ his money in that 
business.
A. would invest B. had invested 
C. invested D. invests
5. If the wall weren't so high, he _____ it up to take his ball down.
A. climbed B. climb 
C. is climbing D.D. couldcould climbclimb
6. If you press that button, what _____?
 A. would happen B.B. willwill happenhappen 
C. would have happened D. happen II. Choose the underlined part in each sentence (A, B, C or D) that needs 
correcting.
 1.What do you do if you won the first prize of the lottery?
 A B C D
 KEY: A -> would
 2. Would people be able to fly if they have feathers instead of hair?
 A B C D
 KEY: C => had
 3. If a drop of oil is placed in a glass of water, it would float to the top.
 A B C D 
 KEY: C => will float II. Choose the underlined part in each sentence (A, B, C or D) that needs 
correcting.
 4. How nice it would be for our parents if we could built the house.
 A B C D
 KEY: D => could build
 5. If your son were enough old, he would be able to take the competition next 
 week.
 A B C D 
 KEY: B => old enough 
 6. If we know about your problem, we would help you.
 A B C D 
 KEY: A => knew II. Choose the underlined part in each sentence (A, B, C or D) that needs 
correcting.
 7.Unless you don’t have a visa, you can’t go abroad.
 A B C D 
 KEY: A => If 
 8.I ran out of money if I bought that house now.
 A B C D
 KEY: A => would run III. Choose the sentences that is closest in meaning to the 
given one.
1. Do your homework first and I’ll let you play the 
computer games.
A. I won’t allow you to do homework when you play the 
computer games.
B. Let’s play the computer games without doing your 
homework.
C. You are allowed to play the computer games without 
doing your homework.
DD. If you do homework first, I will let you play the 
computer games.
 III. Choose the sentences that is closest in meaning to the 
given one.
2. If he doesn’t apologize, I will never invite him here 
again.
A. Unless he apologizes, then I will never invite him here 
again.
B. Unless he apologizes, or I will never invite him here 
again.
C. Unless he doesn’t apologize, I will never invite him here 
again.
DD. Unless he apologizes, I will never invite him here 
again. 
 3. I think you should give up smoking.
A. If I am you, I will stop smoking. 
B. If I were you, I will stop smoking.
CC. If I were you, I would stop smoking. 
D. If I had been you, I would stop smoking.
4. I have to work tomorrow morning, so I can’t meet you.
A. If I don’t have to work tomorrow morning, I can meet 
you.
BB. If I didn’t have to work tomorrow morning, I could 
meet you. 
C. I could meet you if I don’t have to work tomorrow 
morning.
D. I can meet you if I didn’t have to work tomorrow 
morning.