IV. Fill in the blanks witf the suitable preposition.

1. His son is interested................reading science books.

2. I want to ask my mother ...some money.

3. Our teacher suggested holding a meeting to discuss............ the solution..keep our environment clean.

III. Fill in each blank with one suitable word. (1,5pts)

1. Solar energy can be used on .....days

2. Eergy .................bulbs should be used to save electricity.

3. If there is too much..................fume in the air, many people will cope with respiratory problems

4. I'm pleased ............. you are working hard.

5. what about.............. used paper, bottles, and cans everyday? It's not difficult.

6. A............is a person who puts in and repairs water pipes, baths, sinks.

II. Complete the sentences with an appropriate form of the words in parentheses. (:5pts)

1. Most of our...............now comes from the use of coal, gas oil or nuclear power. (electrical)

2..............polution is a serious problem today. (environment)

3. I look forward to receiving good................. from your company. (respond)

4. Not so long ago the country was................. with green trees. (cover)

5. She...............declined his invitation. (polite)

6.I think the.............. drivers should be fined heavily. (care)

I. Choose your best answer. (3pts)

1. I think you should use public buses..... motorbikes

A. instead of B. for C. replacing D. by

2. She feels tired and sleepy..................he stayed up late last night

A. so B. because C, but. D. and

3. Parents provide food and clothes..... Their children

D. on A. with B. for C. to

4. Is the woman really..................with his plan to destroy her house?

B. disappointing D. disappointed A. disappoint C. disappointment

5. These children are used to ..................in...............

A. live /luxurious B. living /luxurious D. living / luxury C. live/luxury

6. We............ up our neighborhood when that conservationist arrived.

A. cleaned B. cleaning C. are cleaning. D. were cleaning

7. If we plant more trees along the streets, we ................ the amount of pollution in the atmosphere.

A. reducing B. reduced. C. will reduce D. would reduce

8. Energy can be collected by solar.............. on cloudy days.

D. sheets A. boards B.panels C. bars

9. "I suggest fixing the dripping faucet." "........."

B. Good idea C. Yes, please. D. I'm afraid not. A. We will

10. I think people should use tree leaves for................ food.

A. wrapping B, rolling C. making D. recycling

11. Mary's eyes are weak,..............., she has to wear glasses.

B. however C. and D therefore A. but

12. If you............joanna..............her to come and see me.

A. meet/ ask B. meet /asking D. can meet/to ask C. can meet/ask

Rewrite each of the sentences, so that the meaning stays the same. (2pts)

1. I didn't realize that the traffic lights were red' so I didn't stop.

I didn't stop. .............

2. Working too much will make you tired.

If..............

3. Nam and Lan sing very badly.

Nam and Lan ............

4. "Why don't you repair the electric fan, Ba?"

She suggested...............

III. Fill in each blank with one suitable word. (1,5pts)

1. It's possible to..............solar energy for a nümber of days.

2. Solar energy doesn't cause.................

3. If we go on............... our environment will become seriously polluted.

4. A..................is a person who works to protect the environment from damage or destruction.

5. If we keep our environment clean, we will live a happir and..............life.

6. My friend....................taking showers because we can save water

II Comiplete the sentences with an appropriate form of the words parentheses. (1:5pts)

1. Air and water........... can make people fall ill (pollute)

2. I always drive more..........at night. (care)

3. You can.........the amount of gas by traveling by bicycle or public transport. (reduction)

4. Easter is a...............estival which is celebrated in many countries in the world. (joy)

5. Consumers want products that will not only work.............., but also save money. (effect)

6. There are energy-saving methods and.......... to use solar energy. (invent)

I. Choose your best answer. (3pts)

1. What will happen if the pollutionon?

B. goes A. puts C. takes D. keeps

2. You should. .. the amount of water your family uses by...showers.

A. reduce-using B. increase -using D. increase-use C. reduce- use

3. Everyone was frightened when the bomb.............

A: went off B. went out C. went away D. went in

4. ................are used to kill insects and weeds so as to help crops grow better.

A. Pesticides B. Dynamite C. Treasures D. Creatures

5. I fell and hurt myself............... I was playing tennis.

A. while B. during C. if D. because

6. That seaside resort is always full................trash.

A. with B. in D. off C. of

7. Oh dear! How.................. our household bills are! We can't pay them.

A. heavy B. enormous C. small. D. low

8. Lan spoke English................. after she lived in England for several months.

D. unnaturally C. naturally A. nature B. natural

9. She suggested........money for the poor in the region

D. saving C. to saving A. to save B. save

10. ...............ari is one oe of the problems we have to solve.

A. Pure B. Polluted C. Dust D.Pleasant

11. We decided not to go out for meal .................. we were too tired

A.but' B. because. C. so D. and

12. Rache..if she....her driving

B. pleases /will pass D, is pleaed /passes A. will pleased/passes C. will be pleased/ passes

Are you looking for a cheap. clean, effective source of power that doesn't cause pollution or waste natural resources? Look no further than solar energy from the sun. At present, most of our electricity comes from the use of coal, gas, oil, or nuclear power. This power could be provided by the sun. One percent of the solar energy that reaches the Earth is enough to provide power for the total pollution. Many countries are already using solar energy. Solar panels are placed on the roof of a house and the Sun's energy is used o heat water. The energy can be stored for a number of days, so on cloudy days you can use solar energy. Sweden has an advanced solar energy program. There, all buildings will be heated by solar energy and cars will use solar energy instead of gas by the year 2015.

True or False sentence:

1....................Solar energy can be cheap and clean.

2....................Most of our electricity now comes from nuclear power.

3....................the solar energy that gets to the Earth cannot provide enough power for the world's population.

4....................Solar energy can be used on cloudy days.

5....................All buildings in Sweden will be heated by solar energy in 2050.

IV. Use these words to make complete sentence:

1. It/ necessary/ we/ go/ home/ now.

2. Why/ not/ you/ turn/ on/ light/ room?

3.Yesterday/ they/ suggest/ she/ stay/ her uncle/ holiday.

4. He/ turn/ gas/ after/ he finish/ cook.

5. Would/ mind/ lend/ motorbike/ until/ weekend?

6. We all/ look forward/ make/ trip/ next town.