1. Scientists are looking forward to the alternative energy sources

2. I suggest not turning the lights on when the room is light enough

3. It is necessary to use energy-saving bulbs instead of ordinary bulbs

4. You should reduce the amount of electricity your family uses

5. If we go on wasting water, there will be a shortage of fresh water

6. Energy-saving bulbs should be used to save electricity

7. The solar energy that gets to the Earth can't provide enough power for the world's population

8. I think we should turn off all the lights and fans before leaving the classroom

9. How about taking a shower instead of a bath to save water ?

10. If we go on littering, the environment will become seriously polluted

1. Why don't you do the homework before class?

→I suggest the homework should be done before class

2.Energy-saving bulbs should be used to save electricity.

→We suggest using energy-saving bulbs to ave electricity

3. Let's clear up all the trash around the schoolyard.

→I suggest all the trash around the schoolyard should be cleared up

4. We should teach young children to care for the environment.

→I suggest young children should be taught to care for the environment

5. What about buying those products?

→I suggest that we should buy those products

6. Let's teach the children how to protect their health.

→I suggest the children should be taught how to protect their health

7. Let's collect garbage on the beach every morning.

→I suggest garbage on the beach should be collected every morning

8. Why don't we use energy-saving bulbs?

She suggests that energy-saving bulbs should be used

9. The teacher said to us, "Do your homework carefully".

→The teacher suggested that our homework should be done carefully

 1. Shall we use gas instead of burning coal? 

I suggest ………using gas instead of burning coal? ………………………………………………………………………………

2. Shall we play badminton? 

How …………about playing badminton………………………………………………………………………………..

3. What about buying energy-saving bulbs? 

Shall …we buy energy-saving bulbs?……………………………………………………………………………………

4. Let’s use electricity economically. 

Why don’t …we use electricity economically?……………………………………………………………………………….

5. Why don’t you ask her yourself? 

I suggest you……that you ask her yourself?  ……………………………………………………………………………….

6. I suggest decorating our classroom again. 

I suggest our……classroom be decorated again…………………………………………………………………………………

7. What about organizing a charity event to raise money? 

I suggest a charity……event be organized to raise money? ……………………………………………………………………………

8. I suggest that helmet should be used to protect our heads.

What ………about using helmet to protect our heads. ………………………………………………………………………………………

9. Let’s organize a cultural festival to celebrate Lunar New Year. I

suggest a ……cultural festival be organized to celebrate Lunar New Year ……………………………………………………………………………………

10. I suggest unused clothes should be collected for the victims. 

What about …………collecting unused clothes  for the victims …………………………………………………………………………

Use suggestions to write full sentences: to + V -để ( diễn ra mục đích)

1. The energy / from / sun / cheap and clean

-> The energy from the sun is cheap and clean

2. It / important / save / natural resources

-> It is important to save natural resources

3. It / necessary / teach children / the energy saving

-> It is necessary to teach children the energy saving

4. What / people / do / reduce / their household bills / future /

-> What will people do to reduce their household bills in the future ?

They / use / low energy lights bulbs / home.

-> They will use low energy lights bulbs at home

5. Energy - saving appliances / should / be used / save electricity

-> Energy - saving appliances should be used to save electricity

6. We / reduce / our use of electricity / save our energy.

-> We should reduce our use of electricity to save our energy

8. We / have / put / diferent kinds / waste / different places

-> We have to put different kinds of waste at different places

9. Many farmers / use / bio gas / for / cook / at / home

-> Many farmers use biogas for cooking at home

VII . Rewrite the sentences .

37 . “ Why don ' t we use energy - saving bulbs to save electricity ? ” An said .

An suggested that energy - saving bulbs should be used to save electricity

38 . My father suggested going out for a meal .

My father said , “ Shall we go out for a meal

39 . My sister watches more TV than me .

I don ' t . watch TV as much as my sister

40 , If I finish my homework , I can go out at the weekend .

unless i finish my homework , I can not go out at the weekend .

VII . Rewrite the sentences .

37 . “ Why don ' t we use energy - saving bulbs to save electricity ? ” An said .

an suggested that we should use energy - saving bulbs to save electricity

38 . My father suggested going out for a meal .

My father said , “ Shall we go out for a meal ?

39 . My sister watches more TV than me .

I don ' t watch tv as much as my sister

40 , If I finish my homework , I can go out at the weekend .

unless i finish my homework , I can't go out at the weekend

VII . Rewrite the sentences .

37 . “ Why don ' t we use energy - saving bulbs to save electricity ? ” An said .

=>An suggested that energy - saving bulbs to save electricity

38 . My father suggested going out for a meal .

My father said , “ Shall My father go out for a meal ?''

39 . My sister watches more TV than me .

I don ' t watch TV as much as my sister

40 , If I finish my homework , I can go out at the weekend .

unless i finish my homework, I can't go out at the weekend

I/ rewrite these sentences

1. let's go to school or go work by motorbike

-> how about...going to school or going work by motorbike ?

2. I think we should use energy-saving bulbs

-> what about.using energy - saving bulbs ?.

3. Why don't you replace the broken window?

-> i suggest.replacing the broken window.

4. Let's put more garbage bins along the road

-> i suggest that.we should put more garbage bins along the road.

5. How about using banana leaves to wrap food?

-> shall..we use banana leaves to wrap food? .

6. I think we shouldn't use plastic bags

-> i suggest..we shouldn't use plastic bags

7. Let's get a plumber to check the water pipes

-> what about.getting a plumber to check the water pipes ?

8. Please turn off the lights before going out

-> i suggest that.we should turn off the lights before going out.

9. I think we shouldn't travel by motorbike

-> how about..traveling by motorbike ?.

10. Let's take showers instead of baths

-> why.don't we take showers instead of baths ?..

11. Let's make some posters on energy saving?

-> i suggest that.we should make some posters on energy saving..

12. Shall we plant some trees around the house?

-> i suggest..that we should plant some trees around the house.

13. Why don't you complain to the company?

-> i think.we should complain to the company..

14. Please don't use electricity to catch fish

-> i suggest that.we should not use electricity to catch fish.

15. I think we should travel by public transport

-> how about.traveling bu public transport ?.

I/ rewrite these sentences

1. let's go to school or go work by motorbike

-> how about goping to school or going to work by motorbike ?

2. I think we should use energy-saving bulbs

-> what about using energy saving bulbs ?

..........saving appliances be used instead of ordinary ones to save energy

........disappointed that people have spoiled the environment

1. " why don't we use energy-saving bulbs to save electricity?" an said

an suggested that energy-saving bulds...should save electricity.........................................................

2. my father suggested going out for a meal

my father said " shall......we go out for a meal............................................

3. my sister watches more tv than me

i don't......watch TV as well as my sister........................................................

4. if i finish my homework, i can go out at the weekend

unless i ......finish my homework,i can't go out at the weekend........................................................................