Question

[Hà Anh Thư]

4.  If everyone  (recycle) paper, metal and glass, we ______________ (not produce) so much rubbish.

5.  If you ______________ (not water) plants, they ______________ (die).

6.  If the weather ______________  (be) bad, we ______________ (not go) to the park.

7.  We ______________ (save) thousands of trees if we ______________ (not waste) so much paper.

8.  What ______________ (happen) if we ______________ (keep) polluting the environment.

9.  If we ______________ (not stop) cutting down so many trees, we ______________ (endanger) our oxygen supply.

10.    If people ______________ (dump) chemicals into rivers, they ______________ (not be) able to swim in them in the future.

phy is much ______________ than science.

II. Rewrite the following sentences

1.    You should work hard, or you won’t pass the exam.

     →If __________________________________________________

2.    Henry fails his examination. His parents will be sad.

     →If __________________________________________________

3.    Sue shouldn’t go out this weekend, or she won’t have time to study.

     →If __________________________________________________

4.    I think it’ll snow tomorrow. I will go skiing.

     →If __________________________________________________

5.    He should leave soon, or he’ll miss the bus.

     →If __________________________________________________

6.    Don’t play with matches. You will hurt yourself.

     →If __________________________________________________

7.    We will plant more trees. The air will be fresher.                  

     →If we ________________________________________________

8.    We will use fewer cars. We will reduce pollution.

     →If we ________________________________________________

9.    We will cycle to school every day. We will keep fitter.

     →If we ________________________________________________

10.           We will use recycled products. We will save money.

     →If we ________________________________________________

11.           People will throw rubbish into the right bin. They will keep the environment clean.

     →If people _____________________________________________

12.           We will turn off the tap when brushing the teeth. We will save a lot of water.

     →If __________________________________________________

13.           People will travel more by public transport. The harmful gases in big cities will be reduced.

     →If __________________________________________________

14.           We will start at 6.00. We will arrive there before noon.

     →If __________________________________________________

15.           The boy eats so may green apples. He will be ill.

     →If __________________________________________________

     III.         Put the verbs in brackets into the correct form.

      1. If you __________ (expose) phosphorus to air, It __________ (burn)

1.    If you __________ (heat) ice, it __________ (turn) to water.

2.    If metal __________ (get) hot, it __________ (expand)

3.    If you __________ (stand) in the rain, You __________ (get) wet

4.    If anyone __________ (ring) the bell, don’t __________ (open) the door.

5.    If my father __________ (not, sleep) well, he __________ (drink) coffee before going to bed

6.    If you__________ (press) this button, the machine __________ (stop)

7.    If you__________ (multiply) 6 to 8, you__________ (get) 48

8.    If anyone __________ (call), say that I__________ (be, not) at home.

9.    If you__________ (go) to the Post Office, you__________ (mail) this letter for me.

     IV. Put the verbs in brackets into the correct form.

1) If we __________ (to send) an invitation, our friends __________ (to come) to our party.

2) He __________ (not/to understand) you if you __________ (to whisper).

3) They __________ (not/to survive) in the desert if they __________ (not/to take) extra water with them.

4) If you __________ (to press) CTRL + s, you __________ (to save) the file.

5) You __________ (to cross) the Channel if you __________ (to fly) from Paris to London.

6) Fred __________ (to answer) the phone if his wife __________ (to have) a bath.

7) If Claire __________ (to wear) this dress at the party, our guests __________ (not/to stay) any longer.

8) If I __________ (to touch) this snake, my girlfriend __________ (not/to scream).

9) She __________ (to forget) to pick you up if you __________ (not/to phone) her.

10) I __________ (to remember) you if you __________ (to give) me a photo.