1. Students are more aware of protecting the environment. Teachers teach environmental issues at school.

=> If teachers teach environmental issues at school, students will be more aware of protecting the environment._____________________________________________________________
2. Light pollution happens. Animals change their behaviour patterns.
__=> If light pollution happens, animals will change their behaviour patterns. _________________________________________________________________
3. The levels of radioactive pollution decrease. We switch from nuclear power to renewable energy sources.
___=> If we switch from nuclear power to renewable energy sources, the levels of radioactive pollution will decrease.________________________________________________________________
4. The water temperature increases. Some aquatic creatures are unable to reproduces.
_=>If the water temperature increases, some aquatic creatures will be unable to reproduce. __________________________________________________________________
5. People get more diseases. The water is contaminated.
_=> If the water is contaminated, people will get more diseases. __________________________________________________________________

1, Students will be more aware of protecting the environment if teachers teach environmental issues at school.

2, If light pollution happens, animal will change their behavior patterns.

3, The level of radioactive pollution won't decrease if we switch from nuclear power to renewable energy sources

4, If the water temperature increases, some aquatic creature will be unable to reproduce 

5, If the water is contaminated, people will get more disease

1. If teachers teach environmental issues at school, students will be more aware of protecting the environment.

2. If light pollution happens, animals will change their behaviour patterns.

3. If the levels of radioactive pollution decrease, we will switch from nuclear power to renewable energy sources.

4. If the water temperature increases, some aquatic creatures will be unable to reproduces. 

5. If the water is contaminated, people will get more diseases.

VIII:

1.If teachers teach environmental issues at school,students will be more aware of protecting the environment

2.If light pollution happens,animals will change their behaviour patterns

3.If the levels of radioactive pollution decrease,we will switch from nuclear power to renewable energy sources

4.If the water temperature increases,some aquatic creatures will be unable to reproduce

5.If the water is  contaminated,people will get more diseases

IX:

1.If I learned hard,I would pass the exam

2.Daisy enjoyed chatting with her friends face to face

3.In Britain,people call each other by their first name

4.If trees get enough water and sunlight,they will grow well

X:

1.English is spoken by many people in the world

2.Lan said she came from a small town in Quang Ninh

3.If you turn off alll the lights,you will not pay more money

4.James said his brother would get married next month

Ex1

1. Students will be more aware of protecting the environment if teachers teach environmental issues at school.

2. If light pollution happens, animals will change their bahaviour patterns.

3. The levels of radioactive pollution will decrease if we switch from nuclear power to renewable energy sources.

4. If the water teperature increases, some aquatic creatures will be unable to reproduce.

Ex2

1. If there were not so many billboards in our city, people could enjoy the view.

2. We could see the stars clearly if there weren't so much light in the city at night.

3. If we didn't turn on the heater all the time, we wouldn't have to pay 3 million dong for electricity a month.

4. If the karaoke bar didn't make so much noise almost every night, the residents wouldn't complain to its owner.

5. She wouldn't have a headache after work every day if she didn't work in a noisy office

Question I.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 teachers teach environmental issues at school, students will be more aware of protecting the environment.

2.Light pollution happens. Animals change their behaviour patterns.

If light pollution happens, animals will change their behaviour patterns.

3.The levels of radioactive polluion decrease.We switch from nuclear power to renewable energy sources.

If we switch from nuclear power to renewable energy sources, the levels of radioactive pollution will decrease.

4.The water temperature increases.Some aquatic creatures are unable to reproduces.

If the water temperature increases, some aquatic creatures will be unable to reproduce.

5.People get more diseases.The water is contaminated.

If the water is contaminated, people will get more diseases.

1. Students are more aware of protecting the environment. Teachers teach environmental issues at school. 

-> Students will be aware of protecting the environment if teachers teach environmental issues at school.

2. Light pollution happens. Animals change their behaviour patterns.

->If light pollution happens , animals will change their behaviour patterns.

3. The levels of radioactive pollution decrease. We switch from nuclear power to renewable energy sources.

->The levels of radioactive pollution will decrease if we switch from nuclear power to renewable esaerzy axares.

4. The water temperature increases. Some aquatic creatures are unable to reproduce. 

->If the water temperature increases, some aquatic creatures will be unable to reproduce.

5. People get more diseases. The water is contaminated.

->If the water wasn't contaminated, people wouldn't get more diseases.

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 teachers teach environmental issues at school, students will be more aware of protecting the environment._______________________________________________

2. Light pollution happens. Animals change their behaviour patterns.

_____________________ If light pollution happens, animals will change their behaviour patterns.______________________________________________

3. The levels of radioactive pollution decrease. We switch from nuclear power to renewable energy sources.

________________________  If the levels of radioactive pollution decrease, we will switch from nuclear power to renewable energy sources.___________________________________________

4. The water temperature increases. Some aquatic creatures are unable to reproduces.

_____________________ If the water temperature increases, some aquatic creatures will be unable to reproduces. ______________________________________________

5. People get more diseases. The water is contaminated.

_________________________  If the water is contaminated, people will get more diseases.__________________________________________

1. Students are more aware of protecting the environment. Teachers teach environmental issues at school.

_If Teachers teach environmental issues at school, Students will be more aware of protecting the environment_____________________________________________________________

2. Light pollution happens. Animals change their behaviour patterns.

___________If light pollution happens, animals will change their behaviour patterns._______________________________________________________

3. The levels of radioactive pollution decrease. We switch from nuclear power to renewable energy sources.

______If we switch from nuclear power to renewable energy sources, the levels of radioactive pollution decrease _____________________________________________________________

4. The water temperature increases. Some aquatic creatures are unable to reproduces.

_____If the water temperature increases, some aquatic creatures will unable to reproduces._____________________________________________________________

5. People get more diseases. The water is contaminated.

______If the water is contaminated, people will get more diseases_____________________________________________________________

1.Students are more aware of protecting the environment. Teachers teach environmental issues at school.

If ……… teachers didn't teach environmental issues at school, students wouldn't be more aware of protecting the environment..……………………………………………………………………………………

2.People speak English all over the world.

English …………is spoken all over the world…………………………………………………………………………

3.Many rivers and lakes are poisoned. Factories produce waste and pour it into rivers and lakes.

Because ………factories produce waste and pour it into rivers and lakes, many rivers and lakes are poisoned.……………………………………………………………………………

4. Radioactive pollution is very dangerous. It can cause abnormal growth. [since]

__________Since radioactive pollution can cause abnormal growth, it is very dangerous___________________________________________________________

5.  Leaves are damaged.The tree cannot get enough food energy to stay healthy. [because]

_______Because leaves are damaged, the tree cannot get enough food energy to stay healthy________________________________________________

6. I don’t have much money now, but I want to buy a house in a big city.

If ______I had much money now, I would buy a house in a big city. _____________________________________________________________

7. Light pollution happens. There is a change in animals’ living patterns.

If _______light pollution didn't happen, there wouldn't be a change in animals’ living patterns.____________________________________________________________

8. Acid rain is dangerous. Trees’ leaves are damaged. [because of]

_______Because of the dangerous acid rain, trees’ leaves are damaged.______________________________________________________________

9. The Walt Disney Studios, the famous movie company, has produced hundreds of cartoons for children.

Hundreds of cartoons for children _______has been produced by the Walt Disney Studios, the famous movie company  ___________________

11. David went home then we arrived. (Before)

_______Before we arrived, David had gone home______________________________________________________________

1.If taechers taech environmental issues at school, students will more aware of protecting the environment

2. If light pollution will happens, animals will change their behaviour patterns.

3.If we switch from nuclear power to renewable renewable energy sources, the levels off radioactive pollution will decrease

4. If the water temperature increases, some aqua creatures will unable to reroduces

5. If the water is contaminated, people will get more diseases

CHERRY

i am hungry because my father is not funny