если в тесто добавить дрожжи, то произойдёт быстрое увеличение его объёма в результате тесто поднимаетс и станет пористым. все эти внешние изменения связаны в первую очередь с тем, что дрожжи
1) начинает очень быстро делиться
2) активно выделяет вещества,которые убивает болезнетворные бактерии
 3)расщепляет углеводы с оброзаванием углекислого газа
4) синтезирует собственные органические вещества

I`ve never been really slim? so when I started school I was worried about PE. We did badminton and volleyball,which were ok, but still felf self-constious . At first I didn`t like putting on my sports kit in front of the other girls in the changing room , but after a few weeks it was ok.

Then we started gumnastics. I realy hated it and me teacher , miss Bell , made it worse.

Last week one by one classmates jimped over the horse. then it was my turn. it was really high and i was scated.i couldn`t move. Miss Bell laughed at me and joked, `` Hurry up, Fatty!`` it was terrible. i ran out of the gum. my face was red and i was crying. i don`t know what to do about PE now.

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