when作并列连词的用法归纳.pptx

Theres no electricity or water and even no textbooks either! lm still trying to adapt to these conditions. However, one thing is for sure, Ive become more imaginative in my teaching. Science is my most challenging subject as my students have no concept of doing experiments. In fact there is no equipment, and if I need water I have to carry it from my house in a bucket! The other day I was showing the boys the weekly chemistry experiment when, before I knew it, the mixture was bubbling over everywhere! The boys who had never come across anything like this before started jumping out of the windows. Sometimes I wonder how relevant chemistry is to these students, most of whom will be going back to their villages after Year 8 anyway. To be honest, I doubt whether Im making any difference to these boys lives at all.was / were doing sth. when 正在 这时 was / were (just) about to do sth. when 就要/即将 这时 was / were just on the point of doing sth. when 正要这时was / were going to do sth. when 就要 /即将 这时 was / were (busy) doing sth. when 正忙于 这时 had just done sth. when 刚刚 这时 had not done sth. when 还没有 这时 was / were + 介词短语 + when 正 这时 whenwhen用作并列连词的句型用作并列连词的句型e. g. Id just about given myself up for lost when I was spotted by a ship. She had just finished her homework when her mother asked her to practised playing the piano yesterday.(09福建卷) Tom was about to close the window when the attention was caught by a bird. (10全国卷) She was just about to say something more when she noticed the sullen (阴沉的) look on his face. They were on the point of giving up when the captain encouraged them fiercely to save the ship. He was going to run away, when the policemen came. The children are playing football on the playground, when it began to rain. I was busy doing my homework when one of my classmates came. We were on duty in the classroom when a boy rushed in. I had just stepped out of the bathroom and was busily drying myself with a towel when I heard the steps. (06年湖南卷)