1.Coal is dirtier than oil.

2. Hydro power is cheaper than oil.

🌀형용사들...

• clean → cleaner (깨끗한 → 더 깨끗한)

• safe → safer (안전한 → 더 안전한)

• cheap → cheaper (저렴한 → 더 저렴한)

• expensive → more expensive (비싼 → 더 비싼)

• powerful → more powerful (강력한 → 더 강력한)

• strong → stronger (강한 → 더 강한)

• dirty → dirtier (더러운 → 더 더러운)

• quiet → quieter (조용한 → 더 조용한)

• easy → easier (쉬운 → 더 쉬운)

2.Hydro energy is more expensive than Wind energy

질문: 석탄보다 천연가스가 더 비싼가요?

유 교수: 네. 그래서 석탄을 천연가스로 대체하는 과정에서 전기요금 인상 요인도 발생하죠. 석탄에 비해서 천연가스는 기체다 보니까 수입하기도 힘들고, 공급의 불확실성도 있고, 가격 변동성이 크죠. 그러다 보니까 우리가 더 취약해진 것은 맞아요. 그런데 그것은 미세먼지와 온실가스를 저감하라는 국민적 요구와 글로벌 트렌드를 반영한 것이기 때문에 그것 자체가 나쁘다고 볼 수만은 없습니다.

Oil is more expensive than coal.

문장:oil is more expensive than wind

기름(석유)은 바람(풍력)보다 비쌉니다.

1. Solar energy is cleaner than coal energy.

2. Solar energy is better for the future than coal.

Oil is more solid than coal.

Coal is harder than oil.

Coal There is not much difference between coal and oil.

<기본 문장 틀>

1. We think _____ energy is cleaner than other energies.
2. We think _____ energy is cheaper than other energies.
3. We think _____ energy is safer than other energies.
4. We think _____ energy is easier to use than other energies.

<나는 좀 더 할 수 있다.>

🌿 Clean (깨끗한 에너지)

•We think solar energy is cleaner than other energies.

•Wind energy is the cleanest because it doesn’t make smoke.

Hydroenergy is clean because it uses water, not gas or coal.

💰 Cheap (저렴한 에너지)

•We think coal energy is cheaper than solar or wind energy.

•Oil energy is cheap now, but it can be expensive later.

•Solar energy is not cheap, but it is good for the Earth.

🦺 Safe (안전한 에너지)

•We think wind energy is safer than coal or oil.

•Solar energy is safe because it doesn’t make fire or smoke.

⚙️ Easy to Use (사용이 쉬운 에너지)

•We think gas energy is easier to use than other energies.

•Coal energy is easy to use, but bad for the environment.

•Solar energy is not easy to use everywhere, but it’s good for the future.

2.We think Hydro and solar energy is cheaper than other energies.

3. We think solar energy is safer than other energies.

4.We think solar energy is easier to use than other energies.

2. We think solar,wind,hydro energy is cheaper than other energies.

3. We think solar,wind energy is safer than other energies.

4. We think coal,oil,gas energy is easier to use than other energies.

5.We think solar,wind,hydro energy is cheaper than oil or gas energy.

wind energy is cleaner than coal

than other energies.

2. We think Solar, Wind and Hydro energy are cheaper than other energies

3. We think Solar and Wind energy are safer than other energies.

4. We think Coal, Oil and Gas energy are easier to use than other energies.

5. Solar, wind and hydro energy are cheap now, but it can be expensive later.

6. Solar energy is clean because it uses sunlight , not oil or coal.

7. We think Coal is dirty than Oil.

2. We think Solar, energy, Hydro is cheaper than other energy is.

3. We think Solar, Hydro, wind energy is safer than other energy is.

4. We think Coal, oil, gas energy is easier to use than other energy is.

We think hydro, wind energy is cheaper than other energies.

We think wind, hydro and solar energy are safer than other engergies.

We think coal, oil and gas is easy to use than other energies.

cleaner than oil or gas energy.

2. We think gas engery is cheaper than other energies

3. We think solar and wind energy are more expensive than gas energy

4. We think coal energy is safer than gas energy

2. We think solar energy is safer than gas energy.

3. We think hydro energy is cheaper than coal energy.

4. We think solar energy is safer than gas energy.

5. We think solar energy is easier to use than coal energy.

2. We think gas energy is cheaper than other energies.

3. We think Solar and Wind energy is safer than other energies.

4. We think gas energy is easier to use than other energies.

we think gas energy is cheaper than other energies.

we think oil, solar ,wind, hydro, coal, energy is safer than other energies.

we think gas energy is easier than other energies.

2. We think Hydro and solar energy is cheaper than  other energy.

3. We think solar energy is safer than other energy.

4. We think solar energy is easier to use than other energy.

2.We think Hydro and solar energy is cheaper than other energies.

3. We think solar energy is safer than other energies.

4. We think solar energy is easier to use than other energies.

than other energies

2.We think Gas energy is

cheaper than other energies,

3.We think Solar energy is safer

than other energies.

4.We think Gas energy is easier

to use than other energies.

2. We think Hydro and solar energy is cheaper than other energes

3. We tthink solar energy is safer than other energes

4. We think Solar energy is easier to use than other energes

2.We think Gas energy is Cheap than solar or wind enegy.

3.We think Coal,Hydro issafer than other energies.

4.We think Gas energy is easier to use than other energies.