A Tip: If you want to understand today, you have to search yesterday .
想要懂得今天，就必须研究昨天。
Learning Aims: Present perfect continuous 现在完成进行时
Learning important point:现在完成时和现在完成进行时的区别
Learning Steps:
Step 1 Revision
1.回忆英语中常用的九种时态和其结构（A级）
_________________
_________________
2.翻译以下句子（B级）
A．我们总是早上六点起床十点半睡觉。
B．三年前他参军了。
C．没人知道将来会发生什么。
D. 老师说明天要考试。
E. 当老师进来时，他正在看一本小说。
F．看，那只猴子正在爬树。
G．他参军已经三年了。
H. 当我到达电影院时，电影已经开始了。
3.复习现在完成时（A级）
现在完成时表示 ___其结构形式为 。
Step 2: Grammar: 现在完成进行时
A. 现在完成进行时由“has/have been+现在分词”构成，其主要用法如下：
（1）表示动作从过去某一时间开始一直延续到现在或离现在不远的时间，这个动作可能已经结束，也可能还在进行。这种时态多用于持续性动词，如：learn, lie, stay, sit, wait, stand, study等。常和all the time, this week, all night, recently等状语及since和for所引导的时间状语或从句连用。
I have been fixing the fridge all the morning.（动作可能持续下去）
（2）表动作的重复: 有时现在完成进行时表示的动作并不是一直在不停的进行，而是在断断续续的重复。
You have been saying that you can succeed for five years.
（3）用于得出结论
You look thin and tired. You have been working too hard.
你看起来又瘦又累，你近来工作一定很辛苦。
（4）表示感情色彩
现在完成进行时有时带有强烈的表扬或厌恶等感情色彩。
Too much has been happening today. 今天真是一个多事的日子。
B. 现在完成时与现在完成进行时的区别
（1）完成性
现在完成时的已完成用法强调动作的完成，而现在完成进行时侧重于未完成。
翻译：I have read this book.
I have been reading this book.
(2)动作的持久性: 现在完成进行时更强调动作延续时间的长久性。
翻译：I have stayed in London for six weeks.________________________________
I have been staying in London for six weeks.___________________________
(3)动作的频繁性
现在完成时同某些频度副词或数词连用时，表示反复的但可能有间断的动作，现在完成进行时可以表示断断续续的重复的动作，但不能同表示具体次数和具体数字的词连用。
翻译：I’ve posted a dozen postcards,but received none.________________________
I’ve been posting postcards since early December.___________________________
判断正误：I have been reading this book several times.（ ）
I have read this book several times.（ ）
（4）感情色彩
现在完成时感情色彩不浓，而现在完成进行时带有强烈的感情色彩。
You have been talking too much and doing so little._________________________
Unit 9 Wheels (3)
Grammar 现在完成进行时
日期： 班级： 学科：
姓名： 层次： 评价：
Ⅰ 现在完成进行时专练：（A级）
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 进展) you’re your work?
工作进行得怎么样
7.What book _____ ______ _______ ___ (read) recently？
最近你看什么书？
Ⅱ单项选择 （B级）
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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