Conditional sentences If clauses- Type 1,2,3 Ex: I will buy a house if I have money (if I have money, I will buy a house ) -Mệnh đề if có thể đứng trước hoặc sau mệnh đề chính . Nếu mệnh đề if đặt trước mệnh đề chính thì sau nó có dấu phẩy -Câu điều kiện gồm có hai phần : main clause và if clause Main clause If clause If clause Main clause Loại If clause Main clause Cách dùng & ví dụ 1 2 3 Past simple V2/ed (to be →WERE) Present conditional Would V-bare Could Giả thiết trái ngược với sự thật ở hiện tại If I were rich, I would help the poor Past perfect Had + V 3/ ed Perfect conditional Would + have + V3/ed Could Giả thiết trái ngược với sự thật trong qúa khứ If Van Quyen had not bet on football,he would not have been in prison Present simple V-bare / V s / es Simple future Will+ V bare Giả thiết có thể xảy ra ở hiện tại hoặc tương lai If you study hard, you will pass the exam Task 1 : Use the correct verb 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 (know) his telephone number, I’d give it to you 6. If you (arrive) ten minutes earlier, you would have got a seat will give would type would have visited attended knew had arrived Task 2: make conditional sentences 1. Keep silent or you’ll wake the baby up If 2. Stop talking or you won’t understand the lesson If 3. I don’t know her number, so I don’t ring her up If 4. I don’t know the answer, so I can’t tell you If 5. We got lost because we didn’t have a map If you don’t keep silent , you will wake the baby up you don’t stop talking , you won’t understand the lesson I knew her number, I would ring her up I knew the answer, I could tell you we had had a map, we would not have got lost 6. His friends were so late, so they missed the train If 7. Today isn’t Sunday, so the pupils cant go swimming If 8. It is very cold , so we can’t go swimming If 9. It was very cold yesterday, so we couldn’t go swimming If 10. I didn’t watch TV last night because I was busy If his friends had not been so late, they would not have missed the train today were Sunday, the pupils could go swimming It were not (very) cold, we could go swimming It had not been (very) cold yesterday, we could have gone swimming I had not been busy , I would have watched TV last night Cách đặt điều kiện trái ngược tình huống cho trước: 1. Chọn câu chỉ nguyên nhân , 2. Đặt giả thiết trái ngược với nguyên nhân đó , 3. Chọn loại điều kiện thích hợp: - Động từ (trong câu tình huống) ở mệnh lệnh → điều kiện loại 1 - Động từ ở hiện tại → điều kiện 2 - Động từ ở quá khứ → điều kiện 3 Cách dùng UNLESS: EX: If you do not study hard, you will fail the exam Unless you study hard , you will fail the exam UNLESS + S + VERB (Nếu ….không) Practice: Use UNLESS instead of IF 1. If you do not like this one, I’ll bring you another Unless 2. If she does not hurry, she’ll be late Unless 3. If you are not careful, you’ll cut yourself Unless 4. if you had not sneezed, he wouldn’t have known that we were there you like this one, i’ll bring you another she hurries, she’ll be late you are careful, you’ll cut yourself Unless you had sneezed , he wouldn’t … QUIZ 1 1. Because you don’t leave immediately, I call a policeman If 2. Go right now or you’ll be late for the train If 3. His friends were so late, so they missed the train If you left immediately , I wouldn’t call a policeman his friends had not been late, they would not have missed the train you don’t go right now, you will be late for the train . Conditional sentences If clauses- Type 1,2,3 Ex: I will buy a house if I have money (if I have money, I will buy a house ) -Mệnh đề if có thể đứng trước. Nếu mệnh đề if đặt trước mệnh đề chính thì sau nó có dấu phẩy -Câu điều kiện gồm có hai phần : main clause và if clause Main clause If clause If clause Main