Unit 4 Information Technology Lesson 1 过去将来时 Past Future 课件-2023-2024学年高中英语北师大版（2019）必修第二册

InformationTechnology Unit 4 Focus on language Past Future to express the simple future tense will / shall do be going to do be about to do be doing be to do FORM USAGE will/shall do be going to do be about to do be doing be to do 表示主语计划打算的行动或看来就要发生的事情 表示将来发生的动作或出现的状态, shall仅与第一人称连用 表示即将发生的动作，一般不带时间副词或短语 表示计划或安排好的动作(go, come, leave, begin等动词) 表示客观上计划或安排好的动作 The Usage of the Simple Future Tense c He says that he won’t finish his work this afternoon. d We are going to visit the Great Wall tomorrow. a He said that he wouldn’t finish his work that afternoon. b Last Sunday we were going to visit the Great Wall, but it rained. Compare the following sentences and answer the questions. What is the difference between the two groups of sentences? What clues in the sentences help you decide which tense to use? Match each group of sentences to the correct timeline. Past future tense Group 1 Group 2 Something would happen in the future from a past point of view. A B Present future tense Now let’s read more examples. Something will happen in the future from a present point of view. Past future Focus on 基本用法 过去将来时 1. 概念 2. 结构及用法 3.形态 Past Future 过去将来时 We use the past future to talk about what will happen in the future from the point of some time in the past. 过去将来时表示从过去某时看将来要发生的事情。 一般会有一个发生在过去的动作，而过去将来时的动作要以此过去动作为参照点，在这个动作之后，将要发生的动作即可用过去将来时。 1. Very few people knew that future avatars would have such a wide variety of forms and uses. 分析： “knew”已经是一个过去的动作，而 “would have” 这个动作若是以knew为参照物的话，又发生在knew之后，所以用过去将来时。 2. They discovered that they were going to have the power to create new identities. 分析： “discovered”已经是一个过去的动作，而 “were going to have” 这个动作若是以discovered为参照物的话，又发生在其之后，所以用过去将来时。 shall/will do be going to do be to do be about to do be doing Past future tense 过去将来时 would/should do was/were going to do was/were to do was/were about to do was/were doing 1. would/should + 动词原形，常表示根据计划或安排即将发生的事。 should主要用于主语是第一人称时；would可用于各种人称。 (1) He said he would go to the cine