A Tip: If you want to understand today, you have to search yesterday .
想要懂得今天，就必須研究昨天。
Learning Aims: Present perfect continuous 現(xiàn)在完成進行時
Learning important point:現(xiàn)在完成時和現(xiàn)在完成進行時的區(qū)別
Learning Steps:
Step 1 Revision
1.回憶英語中常用的九種時態(tài)和其結(jié)構(gòu)（A級）
_________________
_________________
2.翻譯以下句子（B級）
A．我們總是早上六點起床十點半睡覺。
B．三年前他參軍了。
C．沒人知道將來會發(fā)生什么。
D. 老師說明天要考試。
E. 當老師進來時，他正在看一本小說。
F．看，那只猴子正在爬樹。
G．他參軍已經(jīng)三年了。
H. 當我到達電影院時，電影已經(jīng)開始了。
3.復(fù)習(xí)現(xiàn)在完成時（A級）
現(xiàn)在完成時表示 ___其結(jié)構(gòu)形式為 。
Step 2: Grammar: 現(xiàn)在完成進行時
A. 現(xiàn)在完成進行時由“has/have been+現(xiàn)在分詞”構(gòu)成，其主要用法如下：
（1）表示動作從過去某一時間開始一直延續(xù)到現(xiàn)在或離現(xiàn)在不遠的時間，這個動作可能已經(jīng)結(jié)束，也可能還在進行。這種時態(tài)多用于持續(xù)性動詞，如：learn, lie, stay, sit, wait, stand, study等。常和all the time, this week, all night, recently等狀語及since和for所引導(dǎo)的時間狀語或從句連用。
I have been fixing the fridge all the morning.（動作可能持續(xù)下去）
（2）表動作的重復(fù): 有時現(xiàn)在完成進行時表示的動作并不是一直在不停的進行，而是在斷斷續(xù)續(xù)的重復(fù)。
You have been saying that you can succeed for five years.
（3）用于得出結(jié)論
You look thin and tired. You have been working too hard.
你看起來又瘦又累，你近來工作一定很辛苦。
（4）表示感情色彩
現(xiàn)在完成進行時有時帶有強烈的表揚或厭惡等感情色彩。
Too much has been happening today. 今天真是一個多事的日子。
B. 現(xiàn)在完成時與現(xiàn)在完成進行時的區(qū)別
（1）完成性
現(xiàn)在完成時的已完成用法強調(diào)動作的完成，而現(xiàn)在完成進行時側(cè)重于未完成。
翻譯：I have read this book.
I have been reading this book.
(2)動作的持久性: 現(xiàn)在完成進行時更強調(diào)動作延續(xù)時間的長久性。
翻譯：I have stayed in London for six weeks.________________________________
I have been staying in London for six weeks.___________________________
(3)動作的頻繁性
現(xiàn)在完成時同某些頻度副詞或數(shù)詞連用時，表示反復(fù)的但可能有間斷的動作，現(xiàn)在完成進行時可以表示斷斷續(xù)續(xù)的重復(fù)的動作，但不能同表示具體次數(shù)和具體數(shù)字的詞連用。
翻譯：I’ve posted a dozen postcards,but received none.________________________
I’ve been posting postcards since early December.___________________________
判斷正誤：I have been reading this book several times.（ ）
I have read this book several times.（ ）
（4）感情色彩
現(xiàn)在完成時感情色彩不濃，而現(xiàn)在完成進行時帶有強烈的感情色彩。
You have been talking too much and doing so little._________________________
Unit 9 Wheels (3)
Grammar 現(xiàn)在完成進行時
日期： 班級： 學(xué)科：
姓名： 層次： 評價：
Ⅰ 現(xiàn)在完成進行時專練：（A級）
1.She has been ________ (live) there since 1970.
2.I have _____ ______ (write) all the afternoon.
3.He has _____ ______ (wait) for us for two days.
4.We _____ been ______ (study) for one hour. Let’s have a break.
5.How long ____ ______ ______ ______ ? 雨下多久了？
6.How ____ you ______ _____ _____ (get on 進展) you’re your work?
工作進行得怎么樣
7.What book _____ ______ _______ ___ (read) recently？
最近你看什么書？
Ⅱ單項選擇 （B級）
1.The price , but I doubt whether it will remain so.
A.went down B.will go down C.has gone down D.was going down
2.----I haven’t heard from Henry for a long time.
----What do you suppose to him?
A.was happened B.to happen C.has happened D.had happened
3.She has set a new record, the sales of her latest book 50 million.
A.have reached B.has reached C.are reached D.had reached
4.Don’t disturb me; I letters all the morning and have written ten so far.
A.write B.have written C.was writing D.have been writing
5.----Hi , Fracy, you look tired.
---- I am tired. I the living room all day.
A.painted B.had painted C.have been painting D.have painted
6.She on this essay for twenty minutes but she has written only about a hundred words.
A.will be working B.worked C.has been working D.will have worked.
7.She ought to stop working; she has a headache because she
too long.
A.has been reading B.had read C.is reading D.reads
8.I the students’ homework, but I haven’t finished it.
A.have read B.am reading C.have been reading D.had read
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