Task 3. Write a postcard to a friend. You may answer the questions while you are writing. Teacher should print both examples of handouts for each learner. 1. Where are you now? 2. Have you been last year? 3. What are your holiday plans? 4. Why do you like this place? 2 hoot for Postcard

1) the southeast of england is well known for its flat plains, where lots of farms are situated.

2) valleys and meadows of scotland always attract a lot of tourists.

3) green henges( живая изгородь вроде-бы так переводится) in england are separating fields.

4) english scenery is famous for its green henges and green fields

5) i admire of people, which are travelling, discovering new lands and exploring them.

6) my dad has already been in the norhern ireland, but hasn't seen another parts of greatvbritain yet.

7) famous resort towns of england are situated in the southeast.

решение. 1. ri=2*r; rii=r/2; ri/rii=4; не надо ни о какой площади сечения говорить. два куска проволоки содинили последовательно, получили ri=2*r; два куска той же проволоки соединили параллельно, получили rii=r/2; ну, а теперь раздели первое на второе!

а теперь общий случай: ri=r*n; rii=r/n; ri/rii=n^2; кусок проволоки разрезали на n одинаковых кусков. сначала эти куски соединяют последовательно: ri=r*n; затем соединяют параллельно rii=r/n; ну и дели первое на второе и делай выводы.