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UNIT 9: UNDERSEA WORLD GRAMMAR and EXERCISES
Conditional sentences type 2: If-clause Main clause Use simple past: V2/V- ed
would/could/might + V1 - unreal situations in the present/future - unreal/imaginary situations in the present - to give advice Ex1: If I won a lot of money, I would spend most of it travelling around the world. Ex2: If I were a bird, I would be a white pigeon. Ex3: If I were you, I would stop smoking. EXERCISES: A. Choose the word that has the underlined (letters) pronounced differently from the others. 1. A. gulf B surface C. submarine D. current 2. A. ocean B. undersea C. beneath D. deep 3. A. poor B. tour C. actual D. group , 4. A. tiny B. device C. krill D. migrate 5. A. where B. sphere C. atmosphere D. here 6. A. clear B. hear C. idea D. heart 7. A. tour B. pour C. your D. mourn 8. A. square B. share C. are D. rare 9. A. sure B. pure C. picture D. mature B. Choose the word whose main stress is placed differently from the others. 1. A. maintain B. marine C. challenge D. device 2. A. investigate B. information C. submarine D. independent 3. A. organism B. environment C. temperature D. satellite 4. A. carnivore B. entrapment C. technology D. Atlantic 5. A. secret B. ocean C. migrate D. herbicide
C. Complete the sentences with the words in the box. challenges overcome investigating contribution covered conservation entrapment maintained migrate 1. Scientists have overcome many of the ....................................of the depth by using modern devices. 2. Community police have made a very positive .......to crime prevention. 3. Some whales are known to...................into warm waters to bear their calves. 4. Seventy-five percent of the earth surface is ..........................by water. 5. Unless the biodiversity were......................, marine life would be at stake. 6. Scientists are..............................................how the crash occurred. 7. Sperm whale populations are at risk due to hunting and their accidental in...fishing nets. 8. What can I do to........................................my fear of flying? 9. The government has just set up a wildlife...........................................project.
1. Some whales migrate into warm waters to bear their....................
A. young B. diets C.calves D.young whales 2. .................... is the variety of different types of plant and animal life in a particular region. A. Interaction B. Herbicide C.Environment D.Biodiversity 3. He is a .......... biologist. He spends all his life studying sea plants and animals. A. ocean B. marine C.botany D.ea 4. ......................is a chemical used for killing weeds. A. Pesticide B. Herbicide C.Fertilizer D.Antibiotic 5. A___is a naval vessel that can operate under water as well as on the surface.
A. submarine B. satellite C.photograph D.organism 6. The police are_____to find out the cause of the crash.
A. dividing B. indicting C. investigating D.supplying 7. The existence of different kinds of animals and plants which make a balanced environment is called___A. biodiversity B. challenge C.rubbish D.maintain 8. He is always interested in the mysteries that lie beneath the blue depths of the ocean. A. over B. under C.above D.on 9. The blue__is the largest known animal ever to have lived on sea or land.
A. krill B. tuna C.whale D.shell 10. They spent their childhood in a tiny fishery village by the sea.
A. small B. big C.large D.enormous 11. Seventy-five percent of the earth___are covered by seas and oceans
A. face B. flat C.resurface D.surface 12. Some marine animals are dangerous to humans.A. living in the mountain B. living in
the ocean C.living in the forest D.living in the house 13. Sperm whales are ................, which means they eat meat.
A. herbivores B carnivores C.omnivores D.mammals 14. Sperm whale population are at risk due to hunting.
A. in extinction B in danger C.on the decrease D.in fewness 15. These birds..........to North Africa in winter. A. settle B go …
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