ПОМОГИТЕ С ЗАДАНИЕМ!
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.