Unit 3 The World of Science Using language Present perfect passive任务单-2023-2024学年高中英语外研版（2019）必修第三册

B3U3 The world of science Using language— Present perfect passive 语法感知： ①I guess you have been asked about the title of your book before. ②The ink has not been removed from the clothes. ③Haven’t your problems been solved? ④How many buildings have been built in your school? Summary: 1.以上例句中都使用了______________________( )。 2.以上例句中第①句是该时态的__________句式；第②句是__________句式； 第③句是______________句式；第④句是_____________句式。 一、结构 肯定式 否定式 一般疑问式 特殊疑问式 　据提示完成句子 The children have already been told the good news. →The children the good news yet.(变为否定句) → the good news yet？(变为一般疑问句) → the good news yet？(对the children进行提问) 二、用法 1.现完的被动语态: __________________________________________________，常与already，yet，just，never，recently等副词连用。 The machine has already been repaired. 2.表一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for 或since引导的时间状语连用，或用于“How long...？”句型中 How long has this film been shown? 3.在时间、条件状从中：用现完的被动语态代替将完的被动语态。 You shouldn’t leave school before your homework ___________________(finish). 注：常与现在完成时(_________________)连用的时间状语： ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ 单句语法填空 ①A large amount of solar energy (convert) into electrical energy in the past few years. ②So far millions of pounds’ worth of damage (cause) by a storm which swept across the north of England last night. ③Since 1949，the people’s living standard (raise)，causing a big rise in population. ④In the past few years，more than 300 marine and island tourism and recreational zones (develop) in the coastal areas，with a variety of marine features. ⑤When and where to go for the holiday (not decide) yet. 三、现完的被动语态与一过的被动语态的区别 The big fire was put out two hours ago.