pollute（）

Nowadays a growing number of people go to work by bike.—Bicycling is good exercise；________it doesn’t pollute the air. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil.____. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. Where do cars get their energy from? For most cars, the answer is petrol.　21　some cars use electricity. These cars have　22　motors that get their power from large batteries. In　23　,there are even cars that have　24　an electric motor and a petrol motor. These types of cars are　25　hybrid（混合）cars.　　Most people tend to think of electric cars as a new　26　,but they have been around for a long time. In the　27　19th and early 20th centuries electric cars were common because the technology for petrol engines was not very advanced．But　28　the petrol engine became easier to make and more powerful, this type of engines became the most　29　. Interest in electric cars was high in the 1970s and 1980s because　30　became very expensive. Recently, electric cars have again become well-liked because people want cars that pollute　31　.　　Electric cars are better than petrol cars　32　several ways. The biggest benefit is reduced pollution. In areas　33　there is a high percentage of electric cars, pollution is not that serious. The second benefit of electric cars is a　34　in the dependence on foreign oil. Several countries don"t want to　35　on oil from other countries. Since electric cars can run on electricity from coal or nuclear power stations, there is less need to import oil. 共用题干 What We Take From and Give to the SeaAs long as we have been on earth,we have used the sea around us.We take from the ocean,and we give to it.We take fishes from the ocean-millions of kilograms of fish,every year,to________(51)millions of people.We even_______(52)their bones for fertilizer.We take minerals from the ocean.One way to get salt is to_______(53)seawater in shallow basin and leave it until it evaporates（蒸发）.Along with salt,other minerals are left_______(54)evaporation.Much gold and silver drift dissolved in the waters of the sea,too.But the sea does not give them_______(55)by simple evaporation.________(56)gifts from the sea are pearls , sponges（海绵）and seaweed.Pearls________(57)jewelry.Natural sponges become cleaning aids.Seaweed becomes______(58)of many kinds一even candy,and ice cream一as well as medicine.Believe it or not,fresh water is another_______(59)from the sea.We cannot drink ocean water.Some of its contents may______(60)illness.But ocean water becomes fresh water when the salts are ________(61).In the future,we will find ourselves．________(62)more and more onfresh water from the sea.The sea_______(63)us food,fertilizer,minerals,water,and other gifts.What do we give the sea?Garbage.We pollute the ocean_______(64)we use it as a garbage dump.Huge as it is,the ocean cannot hold all the water that we pour into it.________(65)garbage into the ocean is killing off sea life.Yet as the world population grows,we may need the sea and its gifts more than ever.