Exercise 3: Choose the best answer by underlining the most suitable word
1. I like English, and/ but / so / or I like French very much.
2. My brother likes maths, and/ but / so / or he doesn't like history.
3. The children forgot their homework, and/ but / so / or the teacher was angry with
them.
4. Should I go home, and/ but / so / or should I play soccer with my friends after
school ?
5. It was very warm, and/ but / so / or we all went swimming.

6. It is great, and/ but / so / or it's fun.
7. I can take a bus and/ but / so / or I can walk to school tomorrow.
8. Our car is old, and/ but / so / or it is very good.

Exercise 2: Combine sentences, using the word in the bracket.
1. You may have an allergy. Be careful with what you eat and drink. (so)
___________________________________________________________________
2. Tom has a temperature. Tom has a sore throat. (and)
___________________________________________________________________
3. I want to buy another car. I have no money. (but)
___________________________________________________________________
4. It’s raining. I will stay at home and sleep. (so)
___________________________________________________________________
5. I passed the test. My parents took me to the cinema. (so)
______________________________________________________________

6. I feel sleepy. I can’t finish the report. (so)
______________________________________________________________
7. He can sing well. He is a good dancer. (and)

______________________________________________________________

8. I want to buy a new house. I don’t have enough money. (but)
______________________________________________________________
9. I enjoy visiting many different countries. I wouldn’t want to live overseas. (but)
______________________________________________________________
10. I can’t visit my grandparents on Sunday. I will give them a call. (so)
______________________________________________________________

Exercise 1: Complete the sentences with the words given:
and    but    or     so  
1. I feel tired, _____I feel weak.
2. The Japanese eat healthily, _____they live for a long time.
3. I have flu, _____I don't feel very tired.
4. I eat more vegetables, _____ I do exercise more often. I think I can lose weight.
5. You can go and see the doctor, _____you can go to bed now and rest.
6. The Japanese eat a lot of rice, _____they eat lots of fish, too.
7. I want to eat ice-cream, _____ I can’t. I have a sore throat
8. You shouldn’t get up late, ______ you can miss the bus to school tomorrow.
9. The Americans often eat fast food, _____ many of them are overweight.
10. You can walk, _____ you can ride a bike to get there.

Choose the underlined word or phrase (marked A, B, C or D) in each sentence that needs correcting.

1. The exhaust exploitation of natural resources can result in the bad consequences for

                A                                                                    B                                C             D

the environment.

2. We can avoid to waste clean water by some effective ways such as turning off

                                  A                                                  B                                C

faucets carefully after using them.

                                           D

3. People can use wind or hydro power to convert from electricity.

                                 A           B                 C                 D

4. They will be opening a clean power factory this time last month.

                               A                  B                         C             D

5. She cancels her flight to Japan at 9 p.m. tomorrow, so she will be flying at that time.

               A                            B                                                            C                    D

6. Some prestigious scientists will invite to the meeting tomorrow to find some

                     A                                   B                                               C

solutions to the environmental problems.

                                         D

7. Air pollution will be increased anymore when people apply clean energy resources in

                               A          B             C                               D

many fields of life.

8. Within ten years, people will be used less fossil fuel and more renewable energy.

         A                                                        B                             C         D

9. Using solar energy instead fossil fuels can help reverse the effects of global warming.

                                         A                            B           C                                       D

10. Wind power is clean, abundant, widely available, and environmental friendly.

              A                              B            C                                       D

Many people still believe that natural resources will never be used up. Actually the world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnham of the New England Institute of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative.

          However, many people don’t approve of using nuclear power because it is very dangerous. What would happen if there were a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations. The most effective thing is that we should use natural resources as economically as possible.

Answer the questions:

1. Can natural resources be used up someday?

_____________________________________________________________

2. What should we do if we don’t want the natural resources to run out of?

_____________________________________________________________

3. Why don’t people prefer using nuclear power?

_____________________________________________________________

4. What does the radioactivity cause for young people?

_____________________________________________________________

5. What will you do to protect your environment?

_____________________________________________________________

Use the cues given to write correct sentences.

1. Almost all our energy/ come/ oil/ gas/ natural gas. We/ them/ fossil fuels.

__________________________________________________________________

2. The earth’s fossil fuels/ running out.

__________________________________________________________________

3. Scientists/ try/ find/ other alternative sources/ energy.

__________________________________________________________________

4. We/ use energy/ the sun, the wind, and the water.

__________________________________________________________________

5. The sun/ supply/ all the energy/ used/ grow plants/ evaporate water/ rain/ and/ maintain/ temperature/ planet.

__________________________________________________________________

6. If we/ able/ collect solar energy/ we/ be sure/ have enough power.

__________________________________________________________________

7. Energy/ wind/ use/ centuries/ move ships, grind grain, pump water/ and/ do other forms/ work.

_____________________________________________ __________________

8. Recently/ wind/ use / generate electricity.

_____________________________________________ __________________

9. For a long time/ people/ use water/ power machines.

__________________________________________________________________

10. Today/ water power/ mostly/ use/ generate electricity.

__________________________________________________________________

Give the correct form of the word given to complete the sentences.

1. Tidal energy is renewable, _______________and clean. (plenty)

2. Wind will be used as an _______________friendly sources of energy. (environment)

3. There are many ways will be used to solve the problem of _____________. (pollute)

4. Solar power can be used to ______________or cool our houses. (hot)

5. __________________, fossil fuels are harmful to the environment. (fortunate)

6. We should use them______________ and try to find out alternative sources of power. (economy)

7. Solar energy is_________________, plentiful and clean. (renew)                           

8. I think that solar energy can be an________________ source of energy in the near future. (alter)

9. We should reduce the use of________________ at home. (electrical)  

10. It’s a clean source of energy. Sailboats couldn’t move without this____________. (powerful)

II. Look at the pictures and answer the questions