Write sentences using the first conditional with "if" or "unless".

1. __________ (you/ arrive) early, __________ (you/ save) me a seat?

2. __________ (the website/ not open) __________ (you/ have got) the password.

3. Please __________ (you/ call me) __________ (you/ find) my wallet?

4. __________ (my parents/ not give) me any pocket money __________ (I/ pass) my exams.

5. __________ (it/ rain), __________ (we/ not play) football in the park.

6. __________ (you/ practise) more, __________ (you/ not get into) the team.

7. __________ (I/ not call) you __________ (we/ get) home really late. I won't want to wake you.

8. __________ (more people/ vote) for her this time, __________ (she/ lose) the election.

9. __________ (what/ happen) to Chelsea __________ (they/ not score) enough goals?

Read the text below. Use the word given in brackets to form a word that fits in the gap.

Chocolate-powered racing car

A team of (DESIGN) __________ from Warwick University have recently launched a Formula 3 racing car with a (DIFFERENT) __________. With a top speed of 232kph, the ecoF3 is powered by chocolate contains a steering wheel made from corrots, a seat made from soya beans and its bodywork consists of various (PRODUCE) __________ including potatoes and (CYCLE) __________ bottles.

A University spokesperson said the (INTEND) __________ was to design something "fast, fun and exciting". The result is a car whose (PERFORM) __________ is as good as any car made from more traditional materials and the designers are delighted with this (ACHIEVE) __________. However, the car's engine does not currently meet Formula 3 (REGULATE) __________ because of its (USUAL) __________ fuel. "The fact is that an environmentally friendly car is not (NECESSARY) __________ a slow car", said the spokesperson, and it is hoped that racing chiefs will recognise this and change the rules so that the ecoF3 can complete in the Formula 3 (CHAMPION) __________ next season.

Circle a mistake in each sentences, and then correct it

1. He worked in a noisy environment for a long time, because his hearing became worse.

2. We've decided to cancel our picnic because of it's forecast rain tomorrow.

3. Researchers haven't found out what has led in the pollution of the river.

4. Radiation may result to childhood cancer.

5. Water from power stations may cause water in rivers and lakes hotter.

6. Her grandmother is complainting so she's always dumping her school things on the floor.

7. Long exposure to loud results permanent hearing loss.

8. The misuse of resources and improper dumping of waste make land pollution.

9. The soil becomes contaminated because the use of so many pesticides and other farming chemicals.

10. Oil slicks from boats or ships pollute the sea, because many fish and sea-birds die.

11. In many developing countries, water pollution is usually a leading cause of death if people drink from polluted water sources.

12. We should plant trees in our neighbourhood so trees help cool the planet.

Answer:

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Based on the context, make conditional sentences type 2 from the clues.

1. My home hasn't installed a solar water heater. If/ my home/ install/ a solar water heater/ we/ save a lot of energy.

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2. Not all households in Viet Nam turn off lights during the Earth Hour. If/ all households/ Viet Nam/ turn off lights/ the Earth Hour/ we/ save enough electricity/ develop our rural areas.

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3. Some students in our school still throw litter on the school ground. If/ students/ our school/ not throw litter/ the school ground/ our campus/ look/ greener/ fresher.

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4. People use aluminum cans instead of glass bottles. If/ people/ use/ glass bottles/ they/ use/ again and again.

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5. Our school ground is large but we don't have a wind turbine. If/ we/ install/ a wind turbine/ our school/ become/ more eco-friendly.

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6. People don't use organic fertilizers. If/ people/ use/ organic fertilizers/ they/ prevent/ land pollution.

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7. A large number of people ride their motorbikes to work. If/ people/ ride/ bikes/ they/ keep/ air/ less polluted.

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8. That factory doesn't have a wastewater treatment system. If/ that factory/ have/ wastewater treatment system/ river/ not become/ so polluted.

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Fill in each blank with the correct preposition.

1. Thousands of people were exposed __________ radiation when the nuclear plant exploded.

2. Waste water from many factories which is dumped __________ water bodies rirectly causes water pollution.

3. Land pollution is responsible for damage done __________ natural habitat of animals.

4. Americans throw __________ twenty-eight and a half million tons of plastic in landfills every year.

5. Scientists have come up __________ new ways of saving energy.

Combine each pair of sentences, using conditional sentences type 1.

1. A person looks at the sky at night. He is not able to see the Milky Way by naked eye.

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2. Noise pollution gets more serious in the future. It affects the development of economy and society.

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3. Australia has invested in water in Viet Nam with good results. Half of the population in the rural areas has access to fresh water.

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4. You use compact light bulbs. You save a lot of energy.

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5. We have more space. We plant more trees.

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