II. Conditional Sentence (type 1)

a)     Verb form

1.      If the weather …………. good next weekend, we …………… away somewhere. (stay / go)

2.      Come on ! If we ……………, we ………………… the bus. (hurry / catch)

3.      There …………… big floods every year if the cutting down of trees continues. (be)

4.      If there ……… too much litter in the streets, the environment will become polluted. (be)

5.      If the sea level ………………, there will be many floods in many parts of the world. (rise)

6.      They will be late for the meeting if they ………………… now. (not leave)

7.      If you aren’t careful, you …………………. the plates. (drop)

8.      If anyone ……………… me, please tell them I’m out. (phone)

9.      If crops ………………… with pesticides, they …………… by insects in soil. (spray / destroy) 

10.   If he ………………. too much pesticide on vegetables, they will become edible. (not use)

b)     Rewrite with IF

1.      Recycle and we’ll save natural resources.

……………………………………………………………………………………………………………………..

2.      Be careful or you will fall over the rocks.

……………………………………………………………………………………………………………………..

3.      Working too much can make you feel tired.

……………………………………………………………………………………………………………………..

4.      Don’t be careless or you’ll break the vase.

……………………………………………………………………………………………………………………..

5.      Ha can pass the exam, she has to work hard.

……………………………………………………………………………………………………………………..

6.      He can do a part to save the environment by buying recycled products.

……………………………………………………………………………………………………………………..

7.      Putting garbage into the bins is one answer to minimize pollution.

……………………………………………………………………………………………………………………..

8.      We should take the map with us or we will lose our way on the street.

……………………………………………………………………………………………………………………..

9.      Ellen can borrow it, but she must give it back next week.

……………………………………………………………………………………………………………………..

10.  The authorities are thinking of raising the petrol prices. I will have to cycle to work.

……………………………………………………………………………………………………………………..

II.Chia động từ trong ngoặc cho đúng:

1.      If the weather …………. good next weekend, we …………… away somewhere. (stay / go)

2.      Come on ! If we ……………, we ………………… the bus. (hurry / catch)

3.      There …………… big floods every year if the cutting down of trees continues. (be)

4.      If there ……… too much litter in the streets, the environment will become polluted. (be)

5.      If the sea level ………………, there will be many floods in many parts of the world. (rise)

6.      They will be late for the meeting if they ………………… now. (not leave)

7.      If you aren’t careful, you …………………. the plates. (drop)

8.      If anyone ……………… me, please tell them I’m out. (phone)

9.      If crops ………………… with pesticides, they …………… by insects in soil. (spray / destroy) 

10.  If he ………………. too much pesticide on vegetables, they will become edible. (not use)

1.   If the weather is good next weekend, we (go) ......................................................... away somewhere.

2.   Come on ! If we (hurry) ............................... , we (catch) ........................................................ the bus.

3.   If there (be) .............................. too much litter on the streets, the environment will become polluted.

4.   There (be) .............................................. big floods every year if the cutting down of trees continues.

5.   If the sea level (rise) ................................................., there will be floods in many parts of the world.

6.   They will be late for their meeting if they (not leave) ................................................. now.

7.   If you aren’t careful, you (drop) ........................................................................ the plates.

8.   If anyone (phone) ....................................................... me, tell them I’m out.

9.   If he (not use) .................................... much pesticide on vegetables, they will become edible.

10. If crops (not spray) ........................... with pesticide, they will be destroyed by insects in soil.

Bài tập:Use the correct form of the verbs in parentheses:

1.If the weather.................good next weekend,we.....................away somewhere.(stay/go)

2.Come go!If we...................,we..................................the bus.(hurry/catch)

3.There................. big floods every year if the cutting down of the trees continues.(be)

4.If there.........too much litter in the streets, the environment will become polluted.(be)

5.If the sea level........................,there will be many floods in many parts of the world.(rise)

6.You would feel better if you...........................a short rest.(take)

7.If she......................two year older, she....................... part in the contest.(be/take)

8.They.....................angry if you didn't inform him.(be)

9.The teacher.........................disappointed if I.............................lazy like this.(not be/not be)

10.What...................................if the moon........................?(Happen/disappear)

complete the sentences with the conditional senrence - type 1

1. WE ( do) .......................... this for you if you want.

2. If we ( need) ......................... some help, we will ask.

3. If Peter stays with his grandparents, Susan ( not be) .......................... happy.

4. If we win the money , we (buy) ............................ a new house.

5. She ( not write) ........................ to you if she leaves.

6. We ( go) ........................... on holiday if there is time.

1.Rewrite these sentences without changing the meaning,using the conditional type 1:

1.Work harder and you will pass the entrance exam.

If................................................................................

2.Hurry up or we will miss the last bus,

If................................................................................

3.Be more serious in training;otherwise,you can't play in the next match.

If................................................................................

4.We must act now or there won't be any forests left on earth.

If................................................................................

5.Unless his parents help him a lot,he can't set up this company.

If................................................................................

6.She won't get nay achievement unless she gets some inspiration from her successful mother.

If...................................................................................................................................................

7.He practises speaking English everyday,so I think his English is sure to be improved

If.........................................................................................................................................

Complete the sentences with the correct form of the verb with conditional sentence - type 1.
1. We (do) ......... this for you if you want.
2. If we (need) ............. some help, we will ask.
3. If Peter stays with his grandparents, Susan (not be) ........... happy
4. If we win the money, we (buy) .......... a new house.
5. She (not write) ........... to you if she leaves
6. We (go) ............ on holiday if there is time
7. If we ........... (plant) more trees, the air ............ (be) fresher

CONDITIONAL SENTENCES

1. Hurry up, or we will be late for the bus.

" If we ……………………………………………………………………………………………

2. Study harder, or you won’t pass the final exam.

" If you ……………………………………………………………………………………………

3. Don’t talk in class, or you won’t understand what the teacher is explaining.

" If we ……………………………………………………………………………………………

4. Be careful, or you will break the flower vase.

" If ….……………………………………………………………………………………………

5. Give me the bicycle back, or I will call the police

" I will.……………………………………………………………………………………………

6. I’ll call the police if you don’t give back my bicycle. (Unless = If …. not)

→ Unless …………………………………………………………………………………………

7. Study harder or you will fail in the next exams.

→ If ………………………………………………………………………………………………

8. Hurry up or we’ll be late for the concert.

→ If ………………………………………………………………………………………………

9. We won’t go out unless it stops raining.

→ If ………………………………………………………………………………………………

10. If Joe doesn’t change his way, he will end up in prison.

→ Unless …………………………………………………………………………………………

Complete the sentences with the correct form of the verb with conditional sentences - type 1

1. We (do)_________this for you if you want 

2.If we (need)________ some help , we will ask

3. If Peter stays with his granparents , Susan (not be)___________ happy

4. Iff we win be money , we (buy)______ a new house

5.She (not write)________ to you if she leaves

6.We (go)_______ on holiday if there is time

7.If we __________ (plant ) more trees , the air _______(be)fresher

8.If the soil ________ (be )polluted , the vegetables _______ (die)

9.Unless he ___________ (call)me , I _____________ (stay) at home 

10.If a student ________ (recycle) the paper , he _________ (save) energy