1. Перепишите следующие предложения, подчеркните в каждом из них глагол-сказуемое и определите его видовременную форму.
1. Concern about warm ing up the Earth is growing.
2. The design criteria for dams has changed considerably over the years.
3. A lot of research are being carried on to solve the safety problem of dams.
4. Solar fluctuations are also connected with the rise of temperature.

2. Перепишите следующие предложения, подчеркните Participle 1 и Participle 2 и установите функции каждого из них, т.е. укажите, яв¬ляется ли оно определением, обстоятельством или частью глагола-ска¬зуемого. Переведите на русский язык.
1. The length of the canal linking the Volga and the Moskva riner is eighty miles.
2. You must be careful while working with chemical substances.
3. The hull is of light alloy, plastic materials being used for interior decoration.
4. This material was produced just on the construction site.

3. Перепишите следующие предложения, подчеркните в каждом из них модальный глагол или его эквивалент. Перевидите на русский язык.
1. Marine construction can be difficult and expensive because of working beneath the water surface.
2. Magnets may be used in the future to purify water and wastewater.
3. Industry and science should work together at the problem of new computers.
4. They were to prepare all necessary information about environmental protection by the end of the month.