选修 Unit4 Global Warming 强调句型经典课件 2.ppt

人教课标 高二 选修 6 Unit 4;Unit 4 Global warming;;;;;;强调句型;观察并发现强调句型的结构。 (1) It is human activity that has caused this global warming rather than a random but natural phenomenon. (2) It was a scientist called Charles Keeling, who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. (3) They also agree that it is the burning of more and more fossil fuel that has resulted in this increase in carbon dioxide.;根据观察，强调句型的结构为：_________________________________________________ 当被强调部分是人时that也可以换成______________.;【学习过程】 I. 观察下面句子，看哪些成分可以被强调。 Professor Liu teaches us English this year. (1) It is Professor Liu who/that teaches us English this year. (强调___________) (2) It is English that Professor Liu teaches us this year. (强调_____________) (3) It is this year that Professor Liu teaches us English.（强调____________）;你能将下面的三个句子变为一般疑问句吗？ (1) It is Professor Liu who/that teaches us English this year. ___________________________________________________________________ (2) It is English that Professor Liu teaches us this year. ___________________________________________________________________ (3) It is this year that Professor Liu teaches us English. ____________________________________________________________________;强调句型一般疑问句的结构为：__________________________________.;你能就划线部分提问将这三个句子变为特殊疑问句吗？ (1) It is Professor Liu who/that teaches us English this year. (2) It is English that Professor Liu teaches us this year. (3) It is this year that Professor Liu teaches us English.;强调句型特殊疑问句的结构为：_______________________________________.;【归纳总结】; 1) Mrs. Wu visits the club twice a month. ___________________________________ 2) We visited the Bird’s Nest and Water Cube in Beijing. ____________________________________________________________________;2. 强调句式的连接词一般用that，当强调部分是人时，强调主语用who，强调宾语可用whom或who。 特别注意当强调部分是时间状语或地点状语时，不能用when或where,一定用that。 　3) It was on Oct. 1st, 1949_____________ People’s Republic of China was founded. 　4) It was in Beijing __________