Условие:
Перепишите следующие предложения: подчеркните в каждом из них глагол-сказуемое и определите его видо-временную форму и залог. Переведите предложения на русский язык. В разделе (б) обратите внимание на перевод пассивных конструкции.
a) 1. Today scientists are still looking for the substance as a source of energy.
2. The Mendeleyev system has served for almost 100 years as a key to
discovering new elements.
b) 1. Synthetic rubber products were developed between 1914 and the 1930s.
2. The intensity of this process is influenced by many factors.
Решение:
a) 1. Today scientists are still looking for the substance as a source of energy.
are looking for - Present Continuous, Active voice
Сегодня ученые все еще ищут вещество в качестве источника энергии.
2. The Mendeleyev system has served ...