新概念第二册英语Lesson4课件

这是一份新概念第二册英语Lesson4课件，共48页。PPT课件主要包含了Australia，kangaroo，pouch，koala，现在完成时 等内容，欢迎下载使用。

Lessn 4
An exciting trip
1. D yu like traveling?2. Where wuld yu like t travel?
Visiting the wrld’s famus landmarks
Leaning Twer f Pisa
Sydney Opera Huse
Sydney, Australia
exciting adj. 令人兴奋的
v-ing 形容词----- 修饰物，令人… exciting/interesting/surprising/bring v-ed形容词---修饰人,某人感到…excited/interested/surprised/bred 词形扩充：excite v.使…兴奋excitement n. 兴奋
receive
v.接收，收到（客观的收到） receive a letter (frm sb.) 收到某人的来信This mrning I received a letter frm my sister.区分： accept 同意，接受（主观）e.g. This mrning I received a present but I didn’t accept it.
n. 公司He is wrking fr a big firm.近义词： cmpany
different adj. 不同的
考点: 1.反义词：same 相同的 2. 短语：（八上Unit3) be different frm...与…不同 the same as… 与…相同词形扩充： n. difference 不同 make a difference 有影响/产生不同
center n. 中心
business center商业中心shpping center 购物中心in the center f 在…中心
abrad adv. 在国外
g abrad 去国外live abrad 到国外定居study abrad 到国外学习 lived abrad fr many years.Are yu ging abrad fr yur hlidays?
Language pints
I have just received a letter frm my brther, Tim.
receive a letter frm+人=hear frm +人
=I have just heard frm my brther, Tim.
He is in Australia.in+国家He has been there fr six mnths. have/has been in +地点名词+fr+段时间have/has been +地点副词+ +fr+段时间表示在…已经呆了…翻译练习：He has been in Anshan fr ten years.Tim is an engineer.
He is wrking fr a big firm and he has already visited a great number f different places in Australia. wrk fr 在…上班、任职e.g. My father wrks fr a cmpany.a number f+可数名词的复数---很多…number前可用large, great, small等形容词强调数量大小
the number f和a number f的用法：（1）the number f+名词复数，“...的数量”， 作主语时谓语动词用单数形式； The number f the students in ur class is 45.（2）a number f+名词复数，“许多的...” 作主语时谓语动词用复数形式； A large number f students speak English.
He has just bught an Australian car and has gne t Alice Springs, a small twn in the centre f Australia.has/have gne t 去了某地（未归）in the centre f在…中心
He will sn visit sn as 立即；一……就 2.sner r later 迟早 3.hw sn 多久 I will be back in tw 一般与将来时连用。I’ll write a letter sn. 我很快会写信的。
Frm there, there—名词，在那个地方，指代Darwinhe will fly t Perth. =he will g t Perth by air.My brther has never been abrad befre,s he is finding this trip very exciting.find 1. 找到 （强调结果）2.find+宾语（名词/代词宾格）+adj.(形容词） 发现 …He finds his friends interesting.
The Present Perfect Tense
I have already had lunch.
现在完成时（The Present Perfect Tense)
havehas（单数第三人称）
变y 为i 再加 ed
双写尾词加 ed
原形-过去式-过去分词A-A-A 型：put-put-put cut-cut-cut A-B-B型 leave-left-left have-had-had A-B-C 型 am/is-was-been are-were-been g-went-gne d-did-dne
观察现在完成时的句型特点
肯定句：I have had my lunch.一般疑问句：Have yu had yur lunch?回答：Yes, I have. N, I haven’t.否定句：I haven’t had my lunch.
一、动作发生在过去，并且对现在有影响。与already,yet,just,ever,never连用。二、动作发生在过去且一直延续到现在，甚至有可能延续下去。在这种情况下，它一般与 1. fr+段时间 2.since+点时间（或一般过去时） 连用。
1. 现在完成时中标志词的用法区别
1.already肯定句: 句中(助后实前)/句末 “己经”
一般疑问句: 句末(表示惊讶的语气) “难道”
I’ve already had breakfast. (更常见) = I’ve had breakfast already.(表示强调) Have yu had breakfast already?
注: 有already的句子在时态上并不都是现在完成时,判断时要看该词后是否有动词的过去分词.Eg. She’s already eighty years ld. It was already very late.
2. yet在现在完成时中的用法
否定句:句末 “还(没)”
疑问句: 句末 “己经”
Eg. I haven’t had breakfast yet. Have yu had breakfast yet?
注: 带already的肯定句变成否定句或疑问句时,将already要变成yet放在句末.
Eg. I have already dne my hmewrk.否定句:一般疑问句:
I haven’t dne my hmewrk yet.
Have yu dne yur hmewrk yet?
 3. ever在现在完成时中的用法
肯定句/疑问句 : 句中 “曾经”
Eg. I’ve ever been t Beijing. Have yu ever been t Beijing?
4. never在现在完成时中的用法
否定句: 句中 “从来没有”Eg. I’ve never been t Beijing.
5. just在现在完成时中的用法
用于句中, 表示“刚刚”Eg. I’ve just had breakfast. What have they just dne?
6. befre在现在完成时中的用法
用于句末, 表示“以前” Eg. I’ve seen it befre. Has she ridden a bike befre ?
 (定义二)表示一个从过去开始,一直持续到现在,有可能继续下去的动作或状态.通常和fr或since引导的时间状语连用.
Hw lng has he lived here?He’s lived here fr twenty years.When has he been there? He has been there since 1976.笔记：fr+段时间，表示某个动作持续多长时间；since+点时间，表示某个动作是何时开始的。
Eg. I have been here fr 5 weeks. He’s studied English fr 3 years.
(表示过去某一时间的)点时间
I have been here since 2000. I have been here since 5 years ag. I have been here since I graduated in 2000.
对fr或since引导的时间状语提问 必须用hw lng
I have lived here fr 10 years.
Hw lng have yu lived here?
She has std here since 2 hur ag.
Hw lng has she std here?
用 since或 fr填空
I have lived here _____ six years.He has been here _____ 1999.He has waited yu _____ tw hurs.Tm has taught English _____ 2000.I have waited yu ____ ne hur ag.Mrs. Lia has been in hspital ______last week.I have stayed at my aunt’s _____tw weeks