Unit10 I've had this bike for three years现在完成时（课件12张）

(共12张PPT)
现在完成时难点名称：现在完成时中延续性动词和非延续性动词的转换及使用八年级-下册-第10单元目录CONTENTSsince and for
Harry Potter has waited since 14 years ago.
Harry Potter has waited since he was 1 year old.
Presentation
for + 一段时间
过去的时间（时间点）
since+
含有一般过去时的句子
Harry Potter has waited for 14 years.
练习(for或since)
1.______two years
2.______two years ago
3.______last month
4.______ 1999
5.______yesterday
6.______4 o’clock
7.I’ve known him ______ we were children.
8. Our teacher has studied Japanese ______ three years.
9. She has been away from the city ______ about ten years.
10. It’s about ten years ________ she left the city.
for
since
since
since
since
since
since
for
for
since
Presentation
延续性动词又名持续性动词，它表示能够延续的动作，这种动作可以长时间延续下去或产生持久的影响。（如work, stand, lie, know等）
Some verbs can't often be used with "for" or "since
延续性动词、非延续性动词
非延续性动词，可以用于现在完成时态，但不可以接一段时间，若要接一段时间，须要做一些相应的变换。
非延续性动词也可称为终止性动词、短暂性动词、瞬间动词等，表示的动作不能延续，即动作发生后立即结束（如：get ，arrive， start， die， buy， borrow等）。
Presentation
难点突破
第一招 变成持续动词
转成持续不用愁。
买来、得到变拥有，(buy /get/ receive→ have)
借入一定变保留。( borrow → keep)
穿上变穿着，(put on→ wear)
感冒have a cold。( get/ catch a cold→ have a cold)
开始做某事，to后动词持续的。( come to know→ know ，start/begin to study→ study)
到达变停留，也可be in、be at。( reach/arrive in, at /get to→ be in /at)
Some verbs can't often be used with "for" or "since
延续性动词、非延续性动词
Presentation
难点突破
第二招 变成系表结构
系表结构来解忧，
be 代become, get，fall和go。（系动词become, get, fall, go→系动词be fall ill →be ill, go (get) out →be out, fall asleep→ be asleep,
get up→ be up, ）
be后名、介、副和形，（be加名词、介词短语、副词、形容词构成系表结构） 一切轻松能搞定。
去在那，来在这，回来回去be back。(go → be there come →be here come/go back →be back)
Some verbs can't often be used with "for" or "since
延续性动词、非延续性动词
Presentation
难点突破
离开be away，结束be over，开始在进行。( leave → be away end/ finish → be over start/begin→ be on )
加入是成员，或在组织中。(join→ be in +组织 join→ be a member of +组织)
开办be open（open →be open）
死去be dead（die→ be dead ）
Some verbs can't often be used with "for" or "since
延续性动词、非延续性动词
Presentation
难点突破
练习（延续性动词变为非延续性动词）
1 He has died for 20 years.
应改为:
2 The factory has opened since 2007.
应改为:
3 How long has he left
应改为:
4 He has borrowed the book for two weeks.
应改为:
He has been dead for 20 years.
The factory has been open since 2007.
How long has he been away
He has kept the book for two weeks.
Exercise
难点巩固
难点巩固
Rewrite the sentences.
1. We began to learn English three years ago.(改为同义句)
We ____ ___ _English ___three years
2. The old man _________ last year. He has _____ _______for a year. (die)

3. Miss Gao left an hour ago. (同义句转换)
Miss Gao has _______ ________ ________ an hour ago.
have learned for
died been dead
been away since
Exercise
【课堂小结】
Summary
第一招 变成持续动词
转成持续不用愁。
买来、得到变拥有，借入一定变保留。穿上变穿着，感冒have a cold。
开始做某事，to后动词持续的。到达变停留，也可be in、be at。
第二招 变成系表结构
系表结构来解忧，be 代become, get，fall和go。
be后名、介、副和形，一切轻松能搞定。
去在那，来在这，回来回去be back。
离开be away，结束be over，开始在进行。
加入是成员，或在组织中。
开办be open
死去be dead
Thank you for listening!