Unit 3 the Internet-Discovering Useful Structure教案

The PresentPerfect Passive Voice導(dǎo)學(xué)案

This teaching periodmainly deals with grammar “The Present Perfect Passive Voice.” To begin with,teachers should lead students to revise what they have learned about thePresent Perfect Passive Voice. And then, teachers move on to stress more specialcases concerning this grammar。

課件教案

This period carries considerable significance tothe cultivation of students’ writing competence and lays a solid foundation forthe basic appreciation of language beauty. The teacher is expected to enable studentsto master this period thoroughly and consolidate the knowledge by doing some exercises.

1. Guide studentsto review the basic usagesof the Present Perfect Passive Voice

2. Lead students to learn to use some special casesconcerning the Present PerfectPassive Voice flexibly.

2. Enable studentsto use the basic phrases structures flexibly.

3. Strengthen students’great interest in grammar learning.

1. Help students to appreciate the functionof the Present Perfect Passive Voice in a sentence

2. Instruct students to write essays usingthe proper the Present Perfect Passive Voice.

觀察下列句子特點，總結(jié)共同點。

1．(教材P28)Much has been written about thewonders of the World Wide Web．

2．(教材P28)But the Internet has done much morefor people than simply make life more convenient．

3．(教材P28)Many people have been helped by theclub．

4．(教材P28)She no longer feels lonely, and hercompany has become quite successful．

5．(教材P32)Today I thought I’d blog about aquestion that has been asked many times—how do you stay safe online and avoidbad experiences on the Internet?

共同點：has/have done

Has/have been done

一：常與現(xiàn)在完成時連用的時間狀語有：

already 已經(jīng)　　 yet 已經(jīng)

recently/lately 最近 sincethen 從那時起

ever since 自那以來 ever曾經(jīng)

so far 迄今為止 by now 到現(xiàn)在為止

for a long time 很長一段時間

in recent years 在最近幾年里

in/during/over the past/last years 在過去的幾年里

二：現(xiàn)在完成時態(tài)的意義。

1．現(xiàn)在完成時的被動語態(tài)強調(diào)一個發(fā)生在過去的被動性的動作，動作已完成并強調(diào)對現(xiàn)在造成的影響或結(jié)果，主語和謂語之間為被動關(guān)系。

The door has already been locked.

門早已經(jīng)被鎖上了。

I have been employed at the job since 2015.

自從2015年，我就做這份工作。

2．基本構(gòu)成

現(xiàn)在完成時的被動語態(tài)的結(jié)構(gòu)為has/have been done。

A lot of money has been spent to protect the oldtemple by now.

到目前為止已投入了大筆錢來保護這座古廟。

These trees have been watered lately.

那些樹最近已澆水。

2)帶有雙賓語的動詞，如give, send, bring, take, teach, show,tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，變?yōu)楸粍诱Z態(tài)時，一般將間接賓語變?yōu)楸粍诱Z態(tài)的主語，若將直接賓語變?yōu)楸粍诱Z態(tài)的主語時，間接賓語前面要用相應(yīng)的介詞。

We have given him the book.

→He has been given the book.

→The book has been given to him.

現(xiàn)在完成時的被動語態(tài)的用法

1．現(xiàn)在完成時的被動語態(tài)同它的主動語態(tài)一樣，強調(diào)過去的動作對現(xiàn)在造成的影響或結(jié)果，通常與already, yet, just, never, recently等副詞連用。

◆The machine has already been repaired．

機器已經(jīng)修好了。

2．表示一個被動的動作或狀態(tài)開始于過去，持續(xù)到現(xiàn)在，并可能持續(xù)下去，常與for或since引導(dǎo)的時間狀語連用，或用于“How long ．．．？”句型中。

◆Financial problems of the company havebeen discussed for nearly two hours．

公司的財務(wù)問題已被討論了近兩個小時了。

3．用在時間或條件狀語從句中，表示將來某時已完成的動作，即用現(xiàn)在完成時的被動語態(tài)代替將來完成時的被動語態(tài)。

◆You shouldn’t leave school before yourhomework has been finished．