强调句,形式主语,独立主语结构,with复合结构课件.ppt

强调句;;注 意;注 意;直到她摘下墨镜我们才认出她是个大明星;注 意;It was in the evening that the soldiers arrived at the small village. It was evening when the soldiers arrived at the small village.;It作形式主语常见句型;3. It + be + 过去分词 + 主语从句，这类过去分词有：announced, believed, expected, hoped, decided, reported, said, shown等， 如： It is reported that 16 people were killed in the earthquake. It is not decided who will give the operation to the patient. 4. It + 不及物动词(seem, appear, happen等) + 主语从句, 这类不及物动词有：appear, happen, seem等， 如： It seemed that he didn’t tell the truth. It happened that I was out when he called.;5. It + be + 形容词 + for sb.）+ 动词不定式 这类句型常用形容词easy, difficult, hard, important, possible，wise等作表语，有时候为了强调不定式动作的执行者，常在不定式前加for sb，如： It’s necessary for the young to master two foreign language. It is unwise to give the children whatever they want.;6. It + be + 形容词 + of sb. + 动词不定式，这类形容词常是表示心理品质,性格特征的形容词，如：kind, nice stupid, clever, foolish, polite, impolite, silly, selfish, considerate等。某人和这些形容词可以构成主系表结构。如： It’s very kind of you to help me with the work. It seemed selfish of him not to share his dictionary with others. 7. It + be +名词词组 + 动词不定式，如： It is not a good habit to stay up too late. ;8. It + be + 名词或形容词 + 动名词，这类名词和形容词常常是：good, no good, no use, a waste of, useless, senseless等，如： It’s a waste of time talking to her any more. It is no use arguing about the matter with him. 9. It + take ( sb. )+ 时间（金钱）+ 动词不定式，如： It took the workers almost three years to finish building the dam. It will take a whole day to get to the top of the mountain on foot.;独立主格结构和 with / without复合结构;一．独立主格结构;2.结构: 名词/代词 + 分词/形容词/副词/不定式/介词短语 3.作用：独立主格结构主要用于描绘性文字中，其作用相当于一个状语从句，常用来表示时间、原因、条件、行为方式或伴随情况等 。 ;(Ⅰ) 名词/代词+分词(过去分词/现在分词);(Ⅱ)名词/代词 + (being）形容词;(Ⅳ)名词／代词＋不定式;（Ⅴ）名词／代词＋介词短语;二．With和without复合结构;（Ⅰ）with/without＋名词／代词＋现在分词。用现在分词表示主动、正在进行或发生的动作。;(Ⅲ) with/without＋名词／代词＋不定式。用不定式表示将要发生的动作。;(Ⅴ) with/without+名词／代词＋副词。;三．with和without复合结构 与独立主格结构的转化;（２）作原因状语;(3)作条件状语;(4)作伴随状语;1.______ no bus, we had to walk home.??? A. There was