I. Перепишите следующие предложения, подчеркните в них инфинитив и укажите его функции:

1. The cosmonauts use portable TV cameras to send space tele­casts to the Earth.
2. To break the new glass a great amount of force should be applied.
3. The results to be received by the researchers may vary considerably.
4. The computers have to carry out several thousands arithmetic operations per second and be very reliable.
5. To strengthen metals means to make them harder.

1. The cosmonauts use portable TV cameras to send (обстоятельство) space tele­casts to the Earth. 2. To break (обстоятельство) the new glass a great amount of force should be applied. 3. The results to be received (определение) by the researchers may vary considerably. 4. The computers have to carry (часть составного глагольного сказуемого) out several thousands of arithmetic operations per second and be (часть составного глагольного сказуемого) very reliable. 5. To strengthen (подлежащее) metals means to make (дополнение) them harder.