B.EXERCISE
conditional sentence type 1
question 2. Put the verbs in brackets into the correct form.
1.If he (study)                         harder,he can pass an exam.
2.She may be late if she (not hurry)                      .
3.If you study harder,you(pass)                  the exam
4.If you are kind to me,I(be)                       good to you
5.If he(give)             up smoking,as his doctor orders,he will be soon well again
6.You(not pass)                      your driving test unless you drive more carefully.
7.He'll be ill if he(not stop)                          worrying so much
8. We'll go to the beach tomorrow if it(be)                      nice.

question 3.combine each pair of sentences to make a conditional sentence type 1
1.Students are more aware of protecting the environment.Teachers teach environmental issues at school.
If
2.Light pollution happens.Animals change their behaviour patterns
If
3.The levels of radioactive pollution decrease.We switch from nuclear power to renewable energy sources.
If
4.The water temperature increases.Some aquatic creatures are unable to reproduces
If
5.People get more diseases.The water is contaminated
If
conditional sentence type 2

question 4 Put the verbs in brackets into the correct form.
1.If I were you,I(look)                             for a new place to live.
2.If Lan wasn't ill,she(join)                   out tree planting activity
3.If there were fewer cars on the road,there(be)                      less pollution.
4.If people really cared about the environment,they(not dump)                 waste into the lake.
5.If there was no fresh water in the world,what(happen)                           .
6.If you(be)                the president,what would you do to help the environment?
7.They get sick so often.If they exercised more,they(be)                      heathier.
8.If I(have)                 one million US dollars,I would build more parks in our city
9.Quan's mother is unhappy.If Quan tided his room every day,his mother(not be)              so upset.
10.There isn't a garden at house.If there were,we(grow)                            vegetables.

question 5.write a conditional sentence type 2 for each situation,as in the example
1.There are so many billboards in our city.People can not enjoy the view
2.There is so much light in the cityat.We can not see the stars clearly.
3.We turn on the heater all the time.We have to pay three million dong for electricity a month
4.The karaoke bar makes so much noise almost every night.The residents complain to its owner
5.She has a headache after work every day.She works in a noisy office

C.Reading
question 1 read the passage and choose the correct answer A,B,C or D
Environmental pollution is a term that (1)           to all the ways by which man pollutes his surroundings.Man dirties the air with(2)    gases and smoke,(3)        the water with chemicals and other substances,and damages the (4)     with too many fertilizers and pesticides.Man also pollutes his surroundings(5)     various  other ways.For example,people ruin natural beauty by (6)        junk and litter on the land and in the water.
Environmental pollution is one of the most serious problems facing mankind today.Air,water and soil are necessary to the (7)    of all living things.Badly polluted air can cause illness,and (8)      death.Polluted water kills fish and other (9)   life.Pollution of soil reduces the amount of land that is available for growing food.Environmental pollution also brings ugliness to man's (10)      beautiful world.
1.A means         B refers        C provides        D reduces
2.A thick          B.natural          C.exhaust       D.influent
3.A purifies       B.pumps           C.sprays        D.poisons
4.A.soli              B.forests        C streets          D beaches
5.A on               B.in                 C.by               D with
6.A.spoiling         B.leaving        C.scattering   D.gathering
7 A survival         B.environment    C. development   D.growth
8. A.so                 B.ever                  C.too                 D.even
9. A.animal            B.marine              C.human          D.plant
10. A nature           B natural               C naturally        D natures