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Oil tankers are very big.. Oil tankers are _____________ most other ships.Most other ships are _____________ oil tankers.Most other ships aren't _____________ oil tankers.Oil tankers are _____________ ships in the world.. Petrol is very expensive these days.. Petrol is ______________ today ___
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1. Transporting oil Comparisons and Superlatives
2. Oil tankers are very big. Oil tankers are _____________ most other ships.
Most other ships are _____________ oil tankers.
Most other ships aren't _____________ oil tankers.
Oil tankers are _____________ ships in the world.
3. Petrol is very expensive these days. Petrol is ______________ today _____ ever before.
In the 70s, petrol was _______________ it is today.
In the 70s, petrol wasn't _____________________ it is today.
Today, petrol is ________________ fuel available.
4. Transporting oil by pipelines is very safe. Pipelines are _______________ transporting oil by tanker, train or truck.
Oil tankers are ___________________ transporting oil by pipeline.
Oil tankers aren't ______________ transporting oil by pipeline.
Pipelines are ___________________ means of transporting oil.
5. Pollution from oil spills is bad for the environment. Pollution from oil spills is ___________ for the environment _______ using solar power.
Using solar power is ____________ for the environment _______ using oil.
Using solar power isn't __________ for the environment _______ using oil.
Using solar power is ____________ form of power for the environment.
6. Rules for comparative adjectives For short adjectives, we use "-er" and "than" for a positive comparison.
For long adjectives, we use "more" and "than" for a positive comparison.
We can make negative comparisons by:
1) using the opposite
2) using "not... as... as..."
7. Rules for comparative adjectives Some short adjectives double the final consonant in a comparison, for example "big" ---> "bigger".
Some adjectives have an irregular form, for example "good"---> "better""bad" ---> "worse""far" ---> "farther".
Adjectives with two syllables ending in "-y" work like short adjectives, for example"early" ---> "earlier"
8. Rules for superlative adjectives Superlatives express something that is unique.
We use "the ...est" for short adjectives and"the most..." for long adjectives.
Some superlatives have irregular forms, like"the best," "the worst" or "the farthest".
9. North America consumes a lot of oil. North America consumes __________ oil ________ it produces.
North America produces __________ oil _____ it consumes.
North America _____n't produce __________ oil _____ it consumes.
10. There are a lot of oil tankers in the world. There are ________ oil tankers today _______ fifty years ago.
There were _____________ oil tankers fifty years ago __________ there are today.
There weren't _____________ oil tankers fifty years ago __________ there are today.
11. Oil consumption has risen a lot in the last 50 years. Oil consumption is ______________ today ________ it was 50 years ago.
Oil consumption was _____________ 50 years ago _________ it is today.
Oil consumption wasn't _____________ 50 years ago _________ it is today.
12. Rules for comparing quantities We use "more... than" for positive comparisons with quantities.
For negative comparisons with quantities, we use:1) "less... than" or2) "not as much... as" or
3) "fewer... than" or
4) "not as many... as"
"Less" and "not as much" refer to uncountable things."Fewer" and "not as many" refer to countable things.
13. Rules for comparing quantities When comparing numbers or statistics, we often use a metaphor of height, size or speed.
For example:"higher than,""bigger than," "larger than" or
"faster than."