Unit 7 grade 8: Pollution – A Closer Look 2
Conditional sentences type 1: review (Type 1 conditional sentence: review)
– Describe conditions that may happen in the present or in the future.
– Structure: If + Present simple, Future simple
Ex: If you come into my garden, my dog will bite You. (If you come into my garden, my dog will bite you.)
1.1. Task 1 Unit 7 grade 8
Put the verbs in brackets into the correct form. (Put the verbs in brackets into the correct form.)
Guide to answer
1. recycle; will help
2. won’t dump; fines
3. travel; will be
4. will save; don’t waste
5. use; will have
1. If we recycle more; We will help the Earth.
2. Factories won’t discharge waste into the river if the government fines them heavily.
3. If people go to work by bus, there will be less car emissions.
4. We would save thousands of trees if we didn’t waste paper.
5. If we use water carefully, more and more people have clean water.
1.2. Task 2 Unit 7 grade 8
Combine each pair of sentences to make a conditional sentence type 1. (Combine pairs of sentences to make type 1 conditional sentences)
Guide to answer
first. Students will be aware of protecting the environment if teachers teach environmental issues at school.
(Students will be aware of environmental protection if teachers teach environmental issues at school.)
2. When light pollution happens, animals will change their behavior patterns.
(When light pollution occurs animals change their behavior patterns.)
3. The levels of radioactive pollution will decrease if we switch from nuclear power to renewable energy sources.
(The level of radioactive pollution will decrease if we replace nuclear energy with renewable energy sources.)
4. If the water temperature increases, some aquatic creatures will be unable to reproduce.
(If the water temperature rises, some aquatic creatures will not be able to reproduce.)
5. People will get more disease if the water is contaminated.
(People get sick more often if the water is contaminated.)
Conditional sentences type 2 (Type 2 conditional sentence)
– Expresses conditions that cannot happen in the present or in the future.
– Structure: If + Past simple, Would/Could/Should (not) + V (inf)
Ex: If I had a million USD now, I would buy that car. (If I had a million dollars now, I would buy that car.)
1.3. Task 3 Unit 7 grade 8
Match an – if-clause in A with a suitable main clause in B. (Match the if clause in part A with the main clause in part B.)
Guide to answer
1-b. If I were you, I would look for a new place to live.
(If I were you, I’d find a new place to live.)
2 C. If Lan wasn’t ill, she would join our tree planting activity.
(If Lan is not sick, she will join our tree planting activity.)
3-d. If there were fewer cars on the road, there would be less pollution.
(If there were fewer cars on the road, there would be less pollution.)
4-e. If people really cared about the environment, they wouldn’t dump waste into the lake.
(If people really cared about the environment, they wouldn’t put waste in the lake.)
5-a. If there was no fresh water in the world, what would happen?
(If there was no clean water in the world, what would happen?)
1.4. Task 4 Unit 7 Grade 8
Put the verb in brackets into the correct form. (Put the verbs in brackets into the correct form.)
Guide to answer
1. were; would… do
2. exercised; would be
3. had; would build
4. tidied; wouldn’t be
5. was/were; would grow
1. If you were president, what would you do to help the environment?
2. They get sick very often. If they exercise more, they will be healthier.
3. If I had 1 million US dollars, I would build more parks in our city.
4. Ngoc’s mother is not happy. If Ngoc cleaned her room every day, her mother wouldn’t be so upset.
5. There is not a garden in our house. If yes, we will grow vegetables.
1.5. Task 5 Unit 7 Grade 8
Write a conditional sentence type 2 for each situation, as in the example. (Write type 2 conditional sentences for each situation, as in the example.)
Guide to answer
first. If people didn’t rubbish in the street, it would look attractive.
(If people didn’t litter on the street, it would look more attractive.)
2. If there weren’t so many billboards in our city, people could enjoy the view.
(If there weren’t so many signs on the street, one could enjoy the view)
3. If there wasn’t so much light in the city at night, we could see the stars clearly.
(If there wasn’t so much light in the city at night, we could see the stars clearly.)
4. If we didn’t turn on the heater all the time, we wouldn’t have to pay three million dong for electricity a month.
(If we don’t turn on the air conditioner all day, we won’t pay 3 million dong for electricity a month.)
5. If the karaoke bar didn’t make so much noise almost every night, the residents wouldn’t complain to its owner.
(If the karaoke bar didn’t make a lot of noise every night, people wouldn’t complain to its owners.)
6. She wouldn’t have a headache after work every day if she didn’t work in a noisy office.
(She wouldn’t have a headache after work every day if she didn’t work in a noisy office.)
1.6. Task 6 Unit 7 Grade 8
Chain game (Link game)
Work in groups. Student A begins witha conditional sentence type 1 or type 2. Student B uses the end of student A’s sentence to begin his/her own sentence. Student C does the same. Continue the game until the teacher tells you to stop. (Work in groups. Student A starts with a type 1 or type 2 conditional sentence. Student B uses student a’s last sentence to start hers. Student C does the same. Continue the game. Play until the teacher tells you to stop.)
A: If each person plats a tree, there will be a lot of trees. (If each person plants 1 tree, there will be many trees.)
B: If there are a lot of trees, the air will be cleaner. (If there are more trees, the air will be cleaner.)
C: If the air is cleaner, fewer people will be ill. (If the air were cleaner, fewer people would get sick.)
2. Practice Task 1
Supply the correct form of verbs
1. If today _______ (tobe/not) cold, we would go swimming.
2. If I throw an object away, it _______ (drop).
3. If Hoang ______ (tobe) to study harder, he would get good marks.
4. If Kim _______ (tobe/not) lazy, she wouldn’t have failed her exam.
5. If they _______ (go/not) to her birthday party tomorrow, they would be very angry.
3. Practice Task 2
Choose the best answers
1. If Lun goes to the picnic, she _______ a present.
A. takes B. take C. would take D. will take
2. If he ________ that you were ill yesterday, he’d have gone to see you.
A. knew B. knew C. has known D. had known
3. If they go out next week, they _______ off the fans.
A. will turn B. turn C. would turn D. turns
4. If she _______English, she would have gone to England.
A. gone B. had studied C. studied D. studies
5. My customers _________ if they had more money.
A. travel B. will travel C. would travel D. travels
At the end of the lesson, students need to remember the following two grammar points:
– Conditional sentences type 1 (Conditional sentences 1) also known as present real conditional, ddescribe conditions that are likely to happen in the present or in the future.
+ Structure: If + Present simple, Future simple
+ Ex: If my mother know about this, we will be in serious trouble. (If my mother knew about it, we would be in big trouble.)
– Conditional sentences type 2 (Type 2 conditional sentence) Also known as the present unreal conditional, it is used to express an impossible condition in the present or future.
+ Structure: If + Past simple, Would/Could/Should (not) + V (inf)
+ Note: “tobe” is “were” for all the stars
+ Ex: If I were you, I would tell my father. (If I were you, I would tell my dad)