Giải bài tập tiếng Anh 8 - Pearson [Unit 7: Pollution]

A. PHONETICS
I.

Oo	scenic, sonic, comic, magic, fabric, traffic
Ooo	Arabic, classical, typical, logical, tropical, vertical, practical, critical, mythical
oOo	terrific,  kinetic,  linguistic,  statistic,  cosmetic,  aerobic,  symbolic,  fantastic, phonetic,  emphatic,  historic,  heroic,  specific,  mechanic,  republic,  romantic, elastic, ceramic, aquatic
oOoo	arithmetic, botanical, numerical, political
ooOo	economic,  supersonic,  systematic,  sympathetic,  automatic,  scientific, microscopic, oceanic, geographic, energetic

 
II. 1. chemicals        2. historical                3. medical        4. aquatic
      5. specific           6. psychological         7. dramatic      8. Heroic
 
B. VOCABULARY & GRAMMAR
 
I. 1. C     2. F      3. E      4. H       5. A      6. G      7. B       8. D
 
II. 1. contaminated       2. Industrial         3. death         4. Polluted
     5. pollutants             6. difficulty
 
III. 1. Air pollution leads to asthma, allergies and other respiratory illnesses.
 
2. Aquatic life suffers or dies because of thermal pollution.
 
3. The waste water is released from the paper mill in Thai Nguyen City, so water in the Cau River becomes brown and has terrible smell.
 
4. Water in rivers, canals, lakes are extremely polluted and has bad effects on people’s health because people use too much herbicide to treat weeds.
 
5. Many fish in the river die because the temperature of water increases.
 
6. Plastic bags take so long to decompose, so nearly all of them still exist in the environment today.
 
IV. 2. If the sea gets warmer, the ice at the North and South Poleswill melt.
 
3. If the ice at the North and South Poles melts, the sea levelwill rise.
 
4. If the sea level rises, there will be floods in many parts of the world.
 
5. If there are floods in many parts of the world, many people will lose their homes.
 
V. 1. If a person looks at the sky at night, he won’t be able to see the Milky Way by naked eye.
 
2. If noise pollution happens regularly, it will cause stress or nuisance.
 
3.  If  water  pollution  gets  more  serious  in  the  future,  it  will affect  the  development  of economy and society.
 
4. If Australia has invested in water in Viet Nam with good results, half of the population in the rural areas will have access to fresh water.
 
5. If you use compact light bulbs, you will save a lot of energy.
 
6. If we have more space, we will plant more trees.
 
C. SPEAKING
 
I. 1. into the river             2. That’s terrible!            3. to do about it
4. to stop them                 5. By the way
 
II. 1. F      2. C        3. H       4. E       5. A       6. G      7. D       8. B
 
D. READING
 
I. 1. B      2. A       3. C      4. D       5. D       6. D      7. C      8. B
 
II. 1. D         2. C        3. B       4. E      5. A      6. T      7. T      8. F     9. F    10. T
 
III. 1. C        2. E          3. A        4. B       5. D
6. They are satellites, solar panels, rocket bodies and fragments from space shuttles that are floating in space and are no longer functional.
 
7. It affects us here on Earth as well and will continue to affect us in future travel.
 
8. It left debris over an area the size of Austria.
 
9. They were injured by pieces of space debris that hit their ship.
 
10. No, it isn’t. (It is very challenging.)
 
E. WRITING
 
1. Noise pollution is any loud sounds that are either harmful or annoying to humans and animals.
 
2. Generally, noise is producedby household appliances, big trucks, vehicles and motorbikes on the road, planes and helicopters flying over cities, loud speakers, etc.
 
3. Noise pollution can cause stress, illnesses, hearing loss, sleep loss, and lost productivity.
 
4. Health effects of noise include anxiety, stress, headaches, irritability and nervousness.
 
5. Noise-producing industries, airports, bus terminals should be located far from living places.
 
6. The officials must check the misuse of loudspeakers, outdoorparties and discos, as well as public announcement systems.

TEST (UNIT 7)
 
I. 1. B       2. A       3. B       4. C            5. A
 
II. 6. Natural           7. harmful           8. contaminated          9. polluted
      10. unable       11. environmental
 
III. 12. to     13. into      14. to       15. away       16. with
 
IV. 17.  If  people  dump  wastes  and  poisonous  chemicals  into  water,  tiny  animals  will  eat pollutants in polluted water.
 
18. If tiny animals eat pollutants in polluted water, fish and shellfish eating tiny animals will contain poison in their bodies.
 
19. If fish and shellfish eating tiny animals contain poison intheir bodies, people who eat these fish will get some diseases.
 
20. If people who eat these fish get some diseases, they will have to go to hospital.
 
21. If they have to go to hospital, their family members will take care of them.
 
V. 22. results → results in            23. make → cause            24. because → becauseof
     25. because → so                   26. if → because               27. so → because
 
VI.
28. Light pollution makes us unable to see the stars in the sky.
 
29. Glass panels, windows, lawns and roofs make light pollutionworse because they reflect both artificial and sun light.
 
30. All sounds are not noise because noise is any sound that isunwanted and goes beyond its certain limit, for example, above 80 decibels.
 
31. More and more noise is created by modern civilization, so it has now become a major environmental pollutant, especially in urban areas.
 
32. Contamination in the air causes acid rain which damages soil, vegetation and aquatic life of the region.

33. People suffer from stress and anxiety because of noise pollution.
 
VII. 34. E      35. C      36. G     37. A    38. H      39. D     40. F     41. B
 
VIII. 42. C      43. A      44. C     45. B     46. A     47. D    48. B    49. A
 
IX. 50. B      51. D      52. A        53. E       54. C
 
55. Because it has over 390 kilometers of bike lanes.
 
56. They are well-known for their love of cycling.
 
57. About 789,000 miles are cycled in Copenhagen every day.
 
58. It is going to build more bike lanes, widen existing lanes,create biking-only bridges over the city’s waterways, provide more space for parking bikes, andimprove safety along existing bike routes.
 
59. They are healthier, more environmentally-friendly, and allow for better quality of life.
 
X. 60. D      61. B      62. C        63. C          64. A
 
XI. 65. use       66. from             67. any/ a                            68. pollution
       69. in         70. caused         71. rubbish/ garbage/…      72. collect
 
XII. 73. If my home installed a solar water heater, we would save a lot of energy.
 
74. If all households in Viet Nam turned off lights during the Earth Hour, we would save enough electricity to develop our rural areas.
 
75. If students in our school didn’t throw litter on the schoolground, our campus would look greener and fresher.
 
76. If people used glass bottles, they would use them again andagain.
 
77. If we installed a wind turbine, our school would become more eco-friendly.
 
78. If people used organic fertilizers, they would prevent landpollution.

79. If people rode bikes, they would keep the air less polluted.
 
80. If that factory had a wastewater treatment system, the river wouldn’t become so polluted.