牛津译林版高中英语必修五unit3scienceandnaturegrammarandusage课件2

牛津译林版高中英语必修五unit3scienceandnaturegrammarandusage课件2内容摘要：

he was shocked by the news. 3. Treated with electricity, the cell tissue will split into several parts.= If it is treated with electricity the cell tissue will split into several parts. Can you see why ved form is used here? verb Verb’s understood subject Subject of the main clause Compare: Tom ran fast hoping to join Jimmy in no time. Tom ran/ Tom hoped Garfield stared at the scene, lost in thought. Garfield stared/ Garfield was lost in thought The factory keeps releasing smoke, making the air dirty. Made to apologize, the boy felt upset. We can also use the pattern conjunction + verbed to express time and condition. The mon conjunctions are when, whenever, once, until, unless, and if. 1. When ( she was ) asked who she was, the little girl kept silent. 2. If ( I am )invited, I will go. 3. I won’t go unless (I am) invited. 4. Once ( it is) started, the plan needs to be carried out without stop. Whether we use verbing or verbed depends on 1. the verb and its understood subject when it expresses active/ passive meanings 2. whether it’s happening or past action 3. Whether it is something that causes certain feelings or something that says how we feel about something or somebody When it es to perfect form and re。