初中英语人教新目标 (Go for it) 版八年级下册Section A优质课件ppt
展开T learn the present perfect tense with “already” and “yet”.T learn sme new wrds: fictin, technlgy, French…
Grammar Fcus
用法: 1.表示过去发生或已经完成的某一动作对现在造 成的影响或结果。 e.g. –Have yu had yur lunch yet? –Yes, I have. I’ve just had it. (现在我不饿了。) 2.表示动作或状态从过去某一时刻开始,一直延 续到现在,而且可能还要继续下去。
e.g. I haven’t seen her these days. I’ve knwn Bb fr three years. I’ve been at this schl fr ver tw years.
时间状语:already, yet, just, ever, never, befre
构成: 现在完成时是由“助动词have / has+ 动词的过 去分词”构成的,规则动词的过去分词构成与 过去式相同,不规则动词的过去分词则需逐个 记忆。动词的过去式的变化和过去分词的变化 并不完全相同。我们对它们作了一个大致的分 类。
一、过去式和过去分词的变化相同规则变化:1. 一般在动词词尾直接加ed。如: pick → picked → picked; wish → wished → wished; stay → stayed → stayed2. 以不发音的e结尾的动词后面加d。如: like → liked → liked; hpe → hped → hped; phne → phned → phned
3. 以“辅音字母 + y”结尾的动词,变y为i, 再加-ed。如: study → studied → studied; hurry → hurried → hurried; reply → replied → replied4. 词尾只有一个辅音字母的重读闭音节动词, 要双写辅音字母,再加-ed。如: stp → stpped → stpped; clap → clapped → clapped
不规则变化:5. 以不变应万变。如: let → let → let; put → put → put; read → read → read6. 若中间有双写e,则去掉一个e,单词末尾再加t。如: feel → felt → felt; keep → kept → kept; sleep → slept → slept
7. 末尾的字母d变t。如: lend → lent → lent; build → built → built; send → sent → sent8. 变为以-ught或-aught结尾。如: buy → bught → bught; bring → brught → brught; catch → caught → caught; teach → taught → taught
句式1. 肯定句:主语 + have / has + 过去分词 (+ 其他)2. 否定句:主语 + have / has + nt + 过去分词(+ 其他)3. 一般疑问句:have/ has + 主语 + 过去分词(+ 其他)4. 特殊疑问句: 特殊疑问词 (不是句子主语) + have / has + 主语+过去分 词 (+ 其他)2) 特殊疑问词(是句子主语)+have / has+ 过去分词(+ 其他)
already 意为“已经”,常用于肯定句中。一般置于助动词have/has之后,过去分词之前,但也可放在句末。e.g. 我已经看过这部电影了。 I have already seen the film. 我已经解决了这个问题。 I have already slved this prblem. 我已经做完家庭作业了。 I have finished my hmewrk already.
现在完成时--与already连用
yet,在现在完成时句型中常置于句末。 1) “已经”,常用在疑问句中。e.g. 琳达已看过这本书了吗? Has Linda read the bk yet? 你完成家庭作业了吗? Have yu finished yur hmewrk yet? 2) “还,仍然”,常用于否定句和疑问句。e.g. 他还未开始工作。 He has nt begun t wrk yet.
现在完成时--与yet连用
just 意为“刚刚”,常用于肯定句中。一般置于助动词have/has之后,过去分词之前。e.g. 我刚吃过午饭。 I have just finished lunch. 我们刚刚听说她的婚讯。 We have just heard f her marriage.
现在完成时--与just连用
同学们要注意现在完成时与一般过去时的区别。虽然这两个时态都和过去发生的事情有关,但是现在完成时强调这一动作与现在的关系,如对现在产生的结果、影响等,而一般过去时只表示过去的事实,不表示和现在的关系。如:
I went hme at 10:00 yesterday. I have gt hme nw.我昨天十点回家的。现在我已经到家了。I have already finished my hmewrk. 我已经写完家庭作业了。 I finished my hmewrk an hur ag.我一个小时之前写完了家庭作业。
1. Write the frms f the past tense and past participle: drink ______ ______ see ______ ______ find ______ ______ leave ______ ______ tell ______ ______
drank drunk
saw seen
fund fund
left left
tld tld
2. Chse the right answer. —Why is Mr. Yang still in the teachers’ ffice? —Maybe he ________ his wrk yet. A. desn’t finish B. hasn’t finished C. haven’t finished
1. A: Wuld yu like smething t drink? B: N, thanks. ______________________. (just/drink sme tea)2. A: I heard yu lst yur key. __________________? (find) B: N, nt yet.3. A: D yu knw when Tm is leaving? B:___________________. (already/leave)
Use the wrds in brackets t cmplete the cnversatins.
I’ve just drunk sme tea
Have yu fund it yet
He has already left
A: When _________________ ? (leave) B: This mrning.4. A: Is yur sister ging t the mvies with us tnight? B: N. _________________________ . (already/see the film)5. A: What d yur parents think abut ur plan? B: I ____________________. (nt/tell them/yet)
did he leave
She has already seen the film
have nt tld them yet
Sally _______ (lve) reading. In the mrning, she reads the newspaper and in the evening she reads bks. She _____ already ______ (read) mre than 100 different bks! Her favrite kind f bks is science fictin. She is interested in science and technlgy and lves t imagine
Fill in the blanks with the crrect frms f the wrds in brackets.
has read
what the wrld_______ (be) like in 50 years. She __________ (finish) reading a bk abut rbts last week and _____________(write) a bk reprt abut it next week fr her French class. Every time she is in the library, Sally lks at the many bks she _____________ (nt read) yet and she can’t wait t read them!
has nt read
Cmplete the chart with infrmatin abut yu and a friend.
A: What bks have yu already read?B: I’ve already read Tm Sawyer and Harry Ptter.A: What d yu think f them?B: Well, I think Harry Ptter was exciting, but Tm Sawyer was a bit bring.
Ⅰ.单选。 1. —D yu knw the mvie Lst in Thailand? —Yes. I ______ it twice. It’s funny. A. saw B. see C. will see D. have seen 2. —Lunch? —N, thanks. I ______. A. will eat B. am eating C. have eaten
3. —Our cuntry _____ a lt s far. —Yes. I hpe it will be even ____. A. has changed; well B. changed; gd C. has changed; better D. changed; better4. — What are yu ging t d this Sunday? — I _____ yet. A. wn’t decide B. didn’t decide C. haven’t decided D. dn’t decide
6. I ______the bk Little Wman, but I’ll let yu read it first. A. haven’t read B. dn’t readC. wn’t read
5. —Where are the flwers? —Yu see, smene _______ them t the windw. A. mvesB. has mved C. had mved D. wuld mve
Excuse me. Have yu _____ (see) my dictinary?Have yu ______ (find) yur wallet yet?I ____ already _______ (finish) my hmewrk. Let’s g ut._____ yu _____ (read) tday’s newspaper yet?
Ⅱ.根据所给单词的适当形式填空。
have finished
Have read
1. 我已经读完了这本科幻小说。2. 我上个月参加了读书俱乐部,并已读 了五本书。
I have already finished reading the science fictin.
I jined the bk club last mnth and I have read five bks already.
3. 托尼昨天买了一盘流行音乐CD,但他还没听。4. 汤姆还没有看过那部新电影。5. Jim已经完成了他的家庭作业,现在空闲了。
Tny bught a pp music CD yesterday but he hasn’t listened t it yet.
Tm hasn’t seen the new film yet.
Jim has finished ding his hmewrk already. He is free nw.
— The drama series The Thunder(破冰行动) hits screens these days. — Oh. What a pity! I _______ any f them yet. A. desn't watch B. didn't watch C. wn't watch D. haven't watched
Review the new wrds and expressins. 2. Make sentences using the present perfect tense with “already” and “yet”. (at least 10 sentences)
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