Unit 7 : Saving energy

Because of Lam's laziness, he did not finish his homework.

Because of Lam's laziness, he didn't finish his homework

Because of being lazy, he didn't finish his homework.

- Reduces Air Pollution. Fossil fuels create a lot of pollutants. ...
- Reduce Water Usage. If your energy source doesn't use fossil fuels to power itself, it probably uses some sort of water as its resource. ...
- Reduces Dependence On Nonrenewable Energy Sources. ...
- Improves Humanity's Health In The Long-run. ...
- Helps Fight Climate Change.

#Tham khảo!

Benefits of solar energy

1 Renewable Energy Source

2. Reduces Electricity Bills

3. Diverse Applications

4. Low Maintenance Costs

5. Technology Development

1. We should stop destroy forests as they are important to our environment. 

2. They suggest that we should use public transports instead of motorbikes 

1.   A.for using  B.to use  C.use   D.using

2.   A.roads       B.paths   C.streets  D.ways

3.   A.be sure    B.sure     C.to sure  D.to be sure

4.   A.on            B.right     C.off         D.left

5.   A.drip          B.to drip  C.not drip D.not to drip

6.   A.clean        B.rubbing  C.washing  D.brushing

7.   A.on             B.in         C.at         D.when

8.   A.on             B.in          C.at         D.when 

I
1.They are_____that people use energy-saving bulbs to save energy.
A.please     B.pleased      C. pleasing      D.pleasure
2.You should turn____ the gas after you have finished cooking.
A.on            B.off               C.up                D.down
3.My mother was very tired,____I helped her with the housework.
A.because  B.although     C.so                 D.but
II
1.They live__HAPPILY__in a small village.(Happy)
2.You should spend your money and energy as__ECONOMICALLY__as possible.(Economy)
3.I want to see the_PROTECTION__of environment from the local authority.(protect)
4.We can save natural resources by__RECYCLING__bottles and cans.(recycle)
5.The old man walked_SLOWLY___to the park.(slow)
6.He is___DISAPPOINTED __beause they have used electricity to catch.(disappoint)
III
Tropical rain forests are found in Amazon region of South Amercia,Central America,Africa,and Southeast Asia.Rain forests are very important to the world's climate.The Amazon rain forest alone receives about 30 to 40 percent of the total rainfall on the earth and produces about the same percentage of the world's oxygen.Some scientists believe that the decresing size of rain forests will affect the climate on earth, making it uncomfortable or even dangerous for life.Saving our rain forests is an international problem.One country or even a few countries can not solve the problem alone. The nations of the world must work together to find a solution before it is to late.
*Answer the questions:

1.How are the rain forests to the world's climate? _____Rain forests are very important to the world's climate______________________
2.Does Amazon rain forest produce about 30 to 40 percent of the world's oxygen?_______No, it doesn't _________________________________________________________
3.Where are tropical rain forests found?_______in Amazon region of South Amercia,Central America,Africa,and Southeast Asia.___________________________
*Decide the following statements are true(T) or false (F).Check the boxes
4.Some scientists believe that life is dangerous because of the decreasing size of     
rain forests. T
5.Saving our rain forests is only a national problem. F
6.A solution of saving our rain forest must be found by a lot of countries in the world  T

11B 12B 13C 14d 15b 16c 17a 18B 19A 20a

Chào em, em tham khảo nhé!

1.It was raining, so we decided to postpone our camping.

Since it was raining, we decided to postpone our camping.

2.She wants them to sing a song.

She suggests they sing a song.

3.She couldn’t join us because she was busy.

She was busy, so she couldn't join us.

4.Shall we go to the cinema tonight?

What about going to the cinema tonight?

5.Why don’t we use energy-saving bulbs?

I suggest using energy-saving bulbs.

I suggest energy-saving bulbs should be used.

6.If you don’t start working hard now, you won’t be able to pass the final exam.

Unless you start working hard now, you won't be able to pass the final exam.

7.She was tired and therefore she wanted to go home.

She wanted to go home because she was tired.

8.“How about putting garbage bins around the schoolyard? he said to us.

He suggested that we put garbage bins around the schoolyard.

He suggested putting garbage bins around the schoolyard.

He suggested garbage bins be put around the schoolyard.

9.Tom suggested having dinner after the theatre.

Tom suggested that we have dinner after the theatre.

10.Let’s protect the environment.

I suggest that the environment should be protected.

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What would you like to drink?’

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‘What would you like to drink?’ - ‘…Milk, please………………’

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