Выпишите  предложения в которыхинфинитив является обстоятельством и переведите их на российский

Выпишите предложения в которых
инфинитив является обстоятельством и переведите их на русский язык.

1. We hope to get
new data in a week or two.

2. To study
the nature of light and colour Newton
carried out many

experiments with a
prism.


3. The famous Russian scientist Lebedev was the
first to solve the problem of synthetic rubber.

4. To study this phenomenon
requires much knowledge.

5. This method is accurate enough to give
reliable results.

6. Steel is the metal to be formed from iron
with a definite amount of carbon.

7. To increase the productivity of the machine
tool one should know the

characteristics of the material which is being
machined.