最新译林版八年级英语下册全套PPT课件

We add ‘-ed’ to regular verbs.
Most verbs Verbs ending in e Verbs ending in a consonant + y
+ ed +d - y ied
visit→visited
live→lived
carry→carrie d
Short verbs double the stop→stopp
ending in a vowel consonant
ed
+ a consonant
+ ed
B. 不规则动词的过去分词
原形 过去分词 原形 过去分词
think catch give
thought caught given
put cost grow
put cost grown
make made hurt hurt
四、过去分词的构成 A. 规则动词的过去分词
原形 过去分词 原形
travel travelled visit move moved stop stay stayed finish own owned shop learn learned solve
Fra Baidu bibliotek
过去分词
visited stopped finished shopped solved
1. 现在完成时的肯定句 句型:
主语（第一、二人称单复数）+ have +过去分词
e.g. I have finished my report. We have lived in Nanjing for 10 years.
主语（第三人称复数） +have + 过去分词 e.g. They have moved away. 主语（第三人称单数） +has +过去分词 e.g. He has been in Beijing for two months.
They haven't finished their homework yet. 他们还没有完成作业。
2. 副词ever 和never。多用于否定或疑问 句中，表示“曾经”或“从未“等。
如: - Have you ever watched the World Cup? 你曾经看过世界杯吗? - I have never watched the World Cup. 我从未看过世界杯。
4 years
The Present Perfect Tense (现在完成时) 一、现在完成时的含义
现在完成时用来表示之前已发生或完成的 动作或状态，其结果和现在有联系，动作 或状态发生在过去但它的影响现在还存在； 也可表示持续到现在的动作或状态；还可 以表示一个动作到现在为止发生了多少次。
二、现在完成时的构成
Grammar
Eddie lived here four years ago.
past
present
Eddie has lived with Millie since he was born. Eddie has lived with Millie for four years.
past
present
1. They _h_a_v_e_f_in__is_h_e_d_(finish) their homework already.
already ever for just never since yet
recently
肯定句中，否定句中变为yet. 肯定句或疑问句中
各种句型，后加时间段,how long提问
肯定句中 表示否定，句中 各种句型，后加过去的时间点或过去的时间状从句，
how long 否定句或疑问句句尾
各种句型句尾
Has he….?
Yes, I have.
Yes, he has.
No, I haven’t.
No, he hasn’t.
三、现在完成时的时间副词和时间短语
1. 副词already和yet。already一般用于肯定句中，yet 一般用于否定句和 疑问句中。
如: We have already finished our homework. 我们已完成作业了。
4. 表示动作或状态从某一时刻开始， 一直持续到现在的时间状语: so far, for+ 一段时间,
since +过去时间或一般过去时的句子。
如: I haven't seen him for two years. I haven’t seen him since 2 years ago. It’s 2 years since I saw him. 我两年没有见过他了。
动词原形
bring do let come beat
动词过去式
brought did let came beat
Page 122-123
动词过去分词
brought done let
come beaten
Finish P14 Part A
Complete the sentences using the present perfect tense.(P14. PartB)
write written run
run
原形 过去分词 原形 过去分词
feel
felt bring brought
fall fallen wear worn
fly
flown sing
sung
have drink
had drunk
forget forgotten keep kept
ABB ABC AAA ABA AAB
2. 现在完成时的否定句 句型主语+have/has+ not+过去分词 e.g. I have not seen the film yet. He hasn’t been to Tianjin since then.
3. 现在完成时的一般疑问句 句型 Have/Has+主语+过去分词
Have you….?
3. 用表示到说话时为止的时间状语, 如 : just, before, up to now, the past/last few years等。
如: I have seen her before, but I can not remember where. 我以前见过她，但记不起在哪里见过。
He has been there twice the last few days. 近几天他去过那里两次了。