с заданиями! 1. Find Infinitives in the following sentences and state their function.
1. The main faults may occur in the frames.
2. To make the procedure easier heat the frame.
3. To eliminate the distortion heat the frame.
4. It is necessary to replace the worn bushings, shafts, rims, and threads.
5. Power-take-off-cultivation machinery is costly and needs regular maintenance in order to ensure long working life.
6. Tines are arranged across the frame to allow free passage of soil.

2. Find the sentences with the modal verbs in the text. Try to use their equivalents, where it is possible.

3. Insert the necessary words.
1. Power-take-off-driven cultivation...is costly and needs regular maintenance.
2. The rim...can be eliminated by heating.
3. The frames are restored by means of...and heating.
4. Take care of...of the cultivating machinery.
5. A...has a frame with a number of tines.

4. Try to continue the sentences.
1. For all cultivation machinery the main faults can occur in...
2. The frame faults are the following...
3. Frames are repaired by...
4. The main wheel faults are...
5. Rim distortion is corrected by...
6. Tines are mounted on the tractor and its...
7. Power-take-off-driven machinery is...
8. Take care of the cutting parts of...
9. Blunt blades cause...

5. Transform the sentences used in the Passive Voice into sentences in the Active Voice.
1. Rigid tines are used for heavier work.
2. Tines are arranged on the frame to allow free passage of soil.
3. The reversible share is used for seedbed and general work.
4. Worn cutting parts are characterized by the blunt blades.
5. Blunt shares of plows and tines of harrows are heated to be restored.

6. Transform the sentences into the Present Continuous.
1. Cultivation machinery has uniform servicing and technical procedures.
2. A cultivator has a frame with a number of tines, which breaks the soil.
3. Hydraulic attachments help to restore the frame.
4. As a rule we use rigid tines for heavier work.