I. Определите, в предложениях, видовременные формы глаголов и указать их инфинитив.
1. Farm machinery changed the life and work on our farm. - Past Simple Active
2. The workers will have built the canal by the time I come. - Future Perfect Active
3. The scientists are working on an interesting problem for obtaining power from atom.- Present Continuous Active
4. The paper contains a lot of formulas and equations. - Present Simple Active
5. Computers have found wide application in science and technology in recent years. - Present Perfect Active
II. Подчеркните в каждом предложении модальный глагол или его эквивалент.
1. Natural balance must not be destroyed.
2. We have to introduce many fertilizers to enrich the soil.
3. A true scientist should work for his people
III. Подчеркнуть ParticipleI, ParticipleII, установить функции каждого из них, то есть укажите, является ли оно определением, обстоятельством или частью глагола-сказуемого.
1. Water becomes ice when cooled. - обстоятельство (охлаждаясь)
2. Rivers connected by canals form long waterways. - определение (соединенные)
3. Using this irrigation method the farm gets good result.- обстоятельство (используя)
