Practice 2. Concentrate on discovering the author’s main idea. Select the statement which best expresses the author’s main idea.
1. The conference of scientists in Iowa.
2. A new type of a tractor.
3. A new type of the tractor presented at the agricultural exhibition.
4. General characteristics of a new type of the tractor.
Practice 3. Re-arrange the following sentences in a logical order.
1. It only emits heat, vapor and water.
2. It is a new, powerful, refueled quickly, ecologically safe tractor.
3. The Farm Progress show is set for next week at Boone, Iowa.
4. It will not emit anything but water and electrons.
5. The new hydrogen-powered tractor will be presented there.
6. The NH2 is a 106-horsepower tractor, able to perform all tasks.
7. It promises to be an exciting and a very interesting agricultural event.
Practice 4. Make a review of the article (use essential vocabulary from Appendix 2 on p.40).
Practice 5. Describe an ordinary tractor used in agriculture and compare it with the new one presented in the text (Use degrees of comparison of adjectives if possible).