資源簡介

(共24張PPT)
Unit 3
The Internet
Period 3
Discovering Useful Structures
表示 發生的或 的動作對 造成的 。
現在完成時概念：
過去
已完成
現在
影響或結果
e.g. 1. Goodbye to you my trusted friend. 別了朋友，我的摯友。
2. I have just finished the homework. 作業現在已經做完了。
常用的時間狀語有：
◆常與不確定的時間狀語連用，如:
up to now, by now, lately, already, since, ever since, just, yet, before, recently, so far, in the past/last few years等,表示“到目前為止”所發生的動作.
現在完成時謂語動詞的構成
have/has+ done
1.have &has
當主語是 ___，用has;
當主語是 ________，用have。
第三人稱單數
其他人稱
2.done在現在完成時中叫___________
除不規則變化外，一般情況加ed
過去分詞
現在完成時的基本句型
現在完成時 ( Active Voice )
肯定式 have/has done
否定式 have/has not done
一般疑問句 have/has + 主 + done？
（have/has提前）
特殊疑問句 疑問詞+have/has + 主 + done？
(疑問詞+一般疑問句)
How do we form the present perfect passive voice Fill the blank.
Let’s learn
Verb form
Active
Passive
have/has + v-ed
____________________
have/has been + v-ed
Change the sentences into the present perfect passive voice.
EXAMPLE
They’ve built a kind of new PC with more functions.
↓
A kind of new PC has been built with more functions.
肯定式： have/has been done...
否定式： have/has not been done...
一般問句： Have/Has+主語+been done
特殊疑問句： 疑問詞+have/has+主語+been done
現在完成被動語態的基本結構
The singer has been invited (by Tom) .
The singer has not been invited (by Tom) .
Has the singer been invited (by Tom)
Who has been invited (by Tom)
否定
一般疑問
對賓語提問
三、用法
1．表示被動的動作在說話之前已經完成，強調過去的動作對現在造成的影響或產生的結果，通常與already、yet、never、recently等副詞及時間狀語so far、by now、up till/to now、since等連用。
◆The database has already been updated.
數據庫已經被更新了。(現在可以使用新的數據庫了)
2．表示一個被動的動作或狀態從過去開始一直持續到現在，并可能繼續持續下去，常與for或since等引出的時間狀語(從句)連用。
The machine has been repaired for two hours.
這臺機器已經被修了兩個小時了。(可能還會繼續被修)
“及物動詞+副詞”“及物動詞+介詞”以及“及物動詞+副詞+介詞”構成的短語動詞可用于被動結構。
許多“不及物動詞+介詞”以及“不及物動詞+副詞+介詞”構成的短語動詞相當于及物動詞，也可以有賓語，也可用于被動結構。
1. I have downloaded the software to help my phone battery last longer.
2. Someone has lost an identity card.
3. Have you confirmed the Wi-Fi password
The software has been downloaded to help my phone battery last longer.
An identity card has been lost.
Has the Wi-Fi password been confirmed
4. Have you pressed the button yet to copy the file
5. Has anyone made a comment about the online database
Has the button been pressed yet to copy the file
Has a/any comment been made about the online database
“三變”
例：They have solved the problem.
原句主語 (by+sb)
賓語 主語
謂語由主動 被動
“三不變”
原句意思不變
原句時態不變
原句主謂賓以外成分不變
The problem ________________________ by them.
has been solved
被動語態
I have downloaded the software to help my phone battery last longer.
Someone has lost an identity card.
The software has been downloaded to help my phone battery last longer.
An identity card has been lost.
Change the sentences into the present perfect passive voice.
1.Read the pairs of sentences. Underline and compare the different verb forms.
現在完成時被動語態的構成:
Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life.
Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web.
Verb form
Active
Passive
have/has + been + done
主語和動作之間是主動關系
主語和動作之間是被動關系
have/has + done
1.Read the pairs of sentences. Underline and compare the different verb forms.
現在完成時被動語態的構成:
Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life.
Much has been written about the wonders of the World Wide Web. People have written much about the wonders of the World Wide Web.
Verb form
Active
Passive
have/has + been + done
主語和動作之間是主動關系
主語和動作之間是被動關系
have/has + done
The world __________________________ (turn upside down) since the invention of the Internet and the introduction of personal computers into nearly every home. The twin inventions of the personal computer and the Internet ___________________(consider) to be among the two most important events of the last century.
The internet is bringing great changes to modern plete the text with the correct forms of the words in brackets.
has been turned upside down
have been considered
Shopping __________________________ (completely change). Rather than going out to stores weekly or even daily, more and more people order things from clothes to toys to foods online and have them delivered directly to their homes. Social communication __________________ (take over) by the Internet.
has been completely changed
has been taken over
In the past, letters, phone calls, and face-to-face meetings were necessary to build up relationships, but now online communication is often the only social interaction that some people have all day! Games, music, movies and so on _________________________ (heavily influence) by the Internet. New kinds of crimes are happening on the Internet, too, so cyber security has to be constantly updated.
have been heavily influenced
1. 用現在完成時的被動語態改寫、翻譯句子。
①Jack’s boss has always praised him for his devotion to work.
Jack ___________________________ by his boss for his devotion to work.
②They have found a good place to build a temple in the village.
A good place to build a temple in the village ___________________ .
③We haven’t yet decided how to solve that difficult technological problem.
How to solve that difficult technological problem ___________________ yet.
④當我的家庭作業完成時我就回家。
I will go home when my homework _________________.
⑤紙幣已被使用了1000多年了。
Paper money _________________ for over one thousand years．
has always been praised
hasn’t been decided
has been found
鞏固強化
has been finished
has been used
6．中國的各項事業已取得了新的進展。
New progress_________________ in various areas in China.
7．我的家庭作業已經做完了。
My homework___________________.
8．近幾年他各種各樣的書被出版了。
A variety of his books _____________________ in recent years.
9．從 1949 年起，政府就已經非常重視兒童的健康和保健。
Since 1949, great attention __________________the health and care of children by the government.
has been made
has been finished
have been published
has been paid to

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