人教版 (2019)选择性必修 第三册Unit 4 Adversity and Course备课课件ppt

这是一份人教版 (2019)选择性必修 第三册Unit 4 Adversity and Course备课课件ppt，共11页。PPT课件主要包含了现在完成进行时研析等内容，欢迎下载使用。

Teaching Objectives
1.Enable the Ss t master the usage f the Present Perfect Cntinuus tense2.Enable the Ss t use the relevant grammar flexibly and authentically in the real situatin
单元语法自我探究
What is the tense f the sentence belw?This is the adventure that I have been dreaming f.Find mre examples cntaining this tense:1.We are nw camped n the ice and we have been managing t survive, but spring is cming, and the ice will sn begin t melt.2. We have been struggling fr days, but things n Elephant Island are ging frm bad t wrse.Questin: what is the functin f the present perfect cntinuus tense?1.t talk abut actin that started in the past and stpped recently. There is usually a result talk abut actin that started in the past and is cntinuing nw. This is ften used with fr r since.
key: the present perfect cntinuus tense.
1 现在完成进行时概述现在完成进行时表示过去发生的动作或状况一直持续到现在，这个动作可能仍在继续进行或刚刚结束。现在完成进行时由“have/has + been + 现在分词”构成。肯定句：主语 + have/has + been + 现在分词... 否定句：主语 + have/has + nt + been + 现在分词... 疑问句：Have/Has + 主语 + been + 现在分词 疑问代词/ 疑问副词 + have/has +（主语 +）been + 现在分词 I’ve been trying t find ut her telephne number. 我一直在查问她的电话号码。They have been widening the rad. 他们在拓宽这条路。
单句语法填空（1）My eyes ache. I 　　　　 　（stay） in frnt f the cmputer all the afternn. （2）He 　　　　 　（d） this in rder t repay the by’s kindness. （3）I 　　　　 　（learn） English since three years ag. （4）Yu knw，I 　　　　 　（lk） fr a jb fr three mnths，and this is my first frmal interview.
have been staying
has been ding
have been learning
have been lking
2. 现在完成进行时的用法1）表示过去发生并持续到现在的动作Hw lng have yu been learning English? 你学习英语多久了？ She has been burning the midnight il t prepare fr GRE recently. 她最近在熬夜准备研究生入学资格考试。Tm has been playing the nline games fr mre than twenty hurs. 汤姆玩网游已经超过二十个小时了。His brther has been writing this nvel since last year. 他哥哥从去年起就一直在写这本小说。2）表示到目前为止的一段时间内重复进行的活动I have been telling yu nt t make truble. 我一直劝你不要找麻烦。The ld man has been repairing cars fr thirty years. 这个老人修汽车修了三十年了。Jack has been practising Tai Chi fr mre than a year. 杰克练太极一年多了。
（3）表示根据直接或间接的证据而得出结论His eyes are red. He has been wrking t hard recently. 他的眼睛红了，准是他最近工作太辛苦了。—I have gt a headache. 我头痛。— N wnder. Yu have been wrking in frnt f that cmputer t lng. 不足为奇。你在那台电脑前工作太久了。—I’m sure Andrew will win first prize in the final. 我相信安德鲁在决赛中会得第一名。—I think s. He has been preparing fr it fr mnths. 我也是这样认为的。他为此准备好几个月了。（4）表达某种感情色彩:现在完成进行时有时带有强烈的表扬或厌恶等感情色彩。We’ve been lking frward t ur summer vacatin. 我们一直盼望着暑假。T much has been happening tday. 今天真是一个多事的日子。
学法点拨以下几类动词不能用于现在完成进行时： ① 表示感官、感觉：see，hear，smell 等； ② 表示爱憎：lve，prefer，mind 等； ③ 表示希望、意愿：wish，want，desire 等； ④ 表示相信、猜想：believe，think，suppse 等； ⑤ 非延续性动词。
3 现在完成进行时与现在完成时的区别（ 1）现在完成时强调完成和影响，现在完成进行时强调未完成和 动作。I’ve been ding my hmewrk. 我一直在做家庭作业。（还在做） I’ve finished my hmewrk. 我已做完家庭作业了。（已完成） （2）现在完成时经常表单个事件，现在完成进行时可表重复事件。Julia has gne t the library. 朱莉娅去图书馆了。（单个事件） Julia has been ging t the library fr a year. 朱莉娅在一年间经常去图书馆。（重复事件） （3）现在完成时通常只陈述事实，而现在完成进行时含感情色彩。What have yu dne? 你做什么了？（仅是问问） Where have yu been? I have been waiting fr yu in the rain fr tw hurs. 你去哪里了？我在雨中等了你两个小时。（表示不满）
（ 4）表重复时，现在完成时强调成果，讲次数；现在完成进行时强调持续，不讲次数。I have sent thirty e-mails this mrning. 我今天上午发了三十封电子邮件。I have been sending e-mails this mrning. 我今天上午一直在发电子邮件。（ 5）不用于进行时态的动词通常也不用于现在完成进行时，但它们可以用于现在完成时。The war has lasted fr a lng time. 这场战争持续了很长时间。（ 6）现在完成进行时不用于被动语态。若要用，可用现在完成时的被动语态代替。The huse has been painted fr a mnth. 房子已经粉刷了一个月了。