Module 4 Seeing the doctor. Unit 3 Language in use. 语法知识课件 2023-2024学年外研版八年级英语下册

M4 Seeing the doctor. Unit 3 Language in use. Present Perfect(3) 考向1 现在完成时中的时间状语(for,since..) 现在完成时表示从过去已经开始,持续到现在的动作或状态,常与’for+一段时间’或‘since+过去的时间点或从句(从句用一般过去时)’ 他在这已经工作二十多年了。 He has worked here for over twenty years. 自从上大学以来,她已经学了大约5000个英语单词。 She has learned about 5000 English words since she went to college. 注意 1)用于完成时的since+时间点可与for+时间段进行同义替换 我们认识有十年了。 We have known each other since ten years ago. We have known each other for ten years. 2)对‘for+时间段’或‘since+时间点/从句’提问要用_ how long 你在这里工作多久了? How long have you worked here? 五年了。 For five years./Since five years ago. 考向2 现在完成时中的weiyu动词 在现在完成时的句子中,表示持续的动作或状态时,动词通常与表示一段时间的状语连用,谓语动词用延续性动词。 非延续性动词不能与表示一段时间的状语连用,若与表示一段时间的状语连用通常要借用一下几种方式: 1. 将非延续动词(词组)转化为‘be+形容词/副词’ begin- go there- come back- come here- open- close- die- marry- finish- go to bed- leave- return- get out- fall asleep- lose- fall ill- be on be back be open be dead be over be away be out be lost be there be here be closed be married be in bed be back be asleep be ill 2. 有点非延续性动词(词组)可以转化为意思相同的延续性动词(词组) borrow put on become get to know buy catch a cold receive go to sleep keep be have have wear/be on know have a cold sleep 好好学习 天天向上 $$