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.

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

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)

Phần 3. Cho dạng đúng của động từ trong ngoặc với câu điều kiện loại 3

1.If the weather (be) nice, they (play) football.

2.If we (go) to a good restaurant, we (have) a better dinner.

3.If An (learn) more words, he (write) a good report.

4.If the boys (take) the bus to school, they (arrive) on time.

5.If the teacher (explain) the homework, I (do) it.

6.If they (wait) for another 10 minutes, they (see) the pop star.

7.If the police (come) earlier, they (arrest) the burglar.

8.If you (buy) fresh green vegetable, your salad (taste) better.

9.If Alex (ask) me, I (email) the documents.

10.If he (speak) more slowly, Peggy (understand) him.

Phần 3. Cho dạng đúng của động từ trong ngoặc với câu điều kiện loại 3

21.  If the weather (be) …………………nice, they (play) ………………… football.

22.  If we (go) …………………to a good restaurant, we (have) …………………a better dinner.

23.  If An (learn) ………………… more words, he (write) a good report.

24.  If the boys (take) ………………… the bus to school, they (arrive) ………………… on time.

25.  If the teacher (explain) ………………… the homework, I (do) ………………… it.

26.  If they (wait) ………………… for another 10 minutes, they (see) …………………the pop star.

27.  If the police (come) …………………earlier, they (arrest) ………………… the burglar.

28.  If you (buy) ………………… fresh green vegetable, your salad (taste) ………………… better.

29.  If Alex (ask) ………………… me, I (email) …………………the documents.

30.  If he (speak) …………………more slowly, Peggy (understand) …………………him.

31.  / If he (study) ________     harder, he can pass an exam. 

. CONDITIONAL SENTENCES: TYPE 1 or 2

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

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

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

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

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 pesticides on vegetable, they would become edible.

10. If crops (not spray) ……………………………with pesticides, they would be destroyed by insects in soil.

2- Điền vào chõ trống với dạng đúng của động từ trong ngoặc
1. If I .......your book, I .....it to you (find/ give)
2. She......us if she ......any proplems. (phone/ have)
3. If you .......to the party , I.......with you (go/come)
4. She.....very happy if she ........that new job (not be / not get)
5. If you .....with us, you.......a good time (come/ have)
6. We........you if we ..........the time (help/have)
7. I........for you if you ..........late (not wait/ be)
8. We......camping if it..... (go/ not rain)
9. If there ........a good program on Tv tonight, I.......it (be / watch)
10. We.........swimming if it..........a nice day tomorrow (go/be)

Bài 3: kết hợp các câu sau dùng mệnh đề IF
1. Maybe it will rain tomorrow night. I will stay at home.
2. Maybe it will be hot tomorrow . I will go swimming
3. Maybe Adam will have enough time. He will finish his homework
4. Maybe I won't get a letter tomorrow . I will call my aunt
5. We will go on a picnic. Maybe the weather will be nice tomorrow