Unit 10 Section A Grammar focus – 4c课件 2023-2024学年人教版 英语 八年级下册

Unit 10 I've had this bike for three years. Grammar focus – 4c 1. 那边那辆自行车你买多久了？ How long ______you _______that bike over there? 我买了三年了。 I’ve ______it for three years. 2. 他儿子拥有这套火车玩具多久了？ How long ______his son ________the train and railway set? 自从他四岁生日以来他就有了。 He’s _______ it _______ his fourth birthday. 3. 你曾经踢足球吗？ Have you ever ________ football? 是的。 我还是小孩的时候就踢球，但是现在我好久没踢了。 Yes, I did when I was little, but I haven’t played for a while now. have had had has owned owned since played 此种用法中表示持续性的动作或状态的 动词必须是延续性动词。 1. 这本书我买了5年了。 I have bought the book for five years. ( ) I’ve had the book for five years. ( ) × √ 句中动词的特点 2. 你哥哥参军多长时间了？ How long has your brother joined the army? ( ) How long has your brother been in the army/been a soldier? ( ) × √ (1)有一些动词是瞬间动词，也叫非延续性动词，这些动词一发生就结束了，常见的有：come, go, arrive, reach, leave, begin, start, buy, join, die, borrow, get up, become, open, stop等。这些动词虽然可以用于现在完成时(说明某个动作的结果还存在)，但由于它们不能延续，因此不能跟表示一段的时间状语连用。 e.g. Jim has come back. (正) 吉姆已经回来了。 Jim has come back for a month. (误) come back的动作不能延续一个月，因此错误。 改正： Jim has been back for a month. 非延续性动词和延续性动词之间的转换 (2)瞬间动词不可以用于有段时间的现在完成时态中，因此，若要解决这一问题，就应把它改为相应的延续性动词或短语，主要有以下几种： ①用相应的延续性动词 如： buy → have borrow → keep put on → wear come/go/become → be catch a cold → have a cold ②转换成be+名词 如： join → be a member of go to school → be a student ③转换成be+形容词或副词 如： die → be dead leave → be away begin → be on finish → be over fall asleep — be asleep open → be open get up → be up close →be closed ④转换成be+介词短语 如： come to/go to/arrive in (at)/get to/reach …→ be in/at… join the army → be in the army(军队) 巩固练习： I have ___________ the book. 我已经借了那本书。 I have ___________ the book for two days. 我已经借那本书两天了。 Jim has ___________ the band. 吉姆已经加入那乐队了。 Jim has _______________________________ the band for a month.