С! определите в каждом из них видо-временную форму и залог глагола-сказуемого. 1 the problem of the protection of our environment can't be ignored. 2 when the problem of the protection of the environment had been discussed the representatives of the conference began working out the programme of immediate actions. 3 measures for protecting our water and air will be taken by the local authorities. 4 nowadays ecologically pure fuel is being applied in cars. обратите внимание на разные значения слов if, that, one. 1 it is evident that ecological problems should be paid much attention to. 2 one should learn ecology at school and do some practical work to protect nature in every possible way. 3 it is ecology that attracts so much attention on the part of the mankind nowadays. обратите внимание на разные значения глаголов to be, to have, to do. 1 a conference devoted to environmental problems is to be held this month. 2 people had to be evacuated from the dangerous area. 3 the level of harmful ingredients in the air and water in this area doesn't exceed the normal level. 4 radiation has greatly influenced the climate of the earth. обратите внимание на бессоюзное подчинение. 1 we know nuclear weapons poison the atmosphere. 2 the new ecologically pure materials our plant produces gain popularity. обратите внимание на функцию инфинитива. 1 the programme of measures aimed at protecting the water in this lake to be carried out in the nearest future is very important. 2 to use building materials that are not harmful to our health is the task of structural engineers. 3 this scientist was the first to publish the data showing a dangerous situation in the area. 4 the participants of the conference assembled to discuss the key problems of environmental protection.