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现在完成时免费课件
谓语动词构成：I/we/you/they have worked; he/she/it has worked
(1)表示过去某一时刻发生，且延续到现在的动作或状态，这种情况常与表示一段的时间状语连用
We have lived here since last October. 自从去年十月份我们就一直住在这儿。
She has studied English for 5 years. 她学英语已有5年之久
(2) 表示某个已经发生且对现在造成影响或结果的动作，这种情况常不与任何时间状语连用
I'm sorry I have lost my key. I can't open the door.
对不起，我把钥匙弄丢了.门开不了了.
She has left. If you want to see her, you'll have to come tomorrow.
她已经走了.如果你想见她的话，你得明天再来一趟.
英语学习—语法—现在完成进行时
谓语动词构成：I/ we/ you/ they have been working
He / she/ it has been working
(1)表示从过去某时开始一直持续到现在的动作，并且还将持续下去
The Chinese have been making paper for two thousand years.
中国有2000年的造纸历史.
I have been learning English since three years ago.
自从三年前以来我一直在学英语.
(2)表示在说话时刻之前刚刚结束的动作
We have been waiting for you for half an hour. 我们已经等你半个钟头了.
(3)有些现在完成进行时的句子等同于现在完成时的句子
They have been living in this city for ten years.
They have lived in this city for ten years.他们在这个城市已经住了10年了.
I have been working here for five years.
I have worked here for five years.我在这里已经工作两年了.
(4)大多数现在完成进行时的句子不等同于现在完成时的句子
I have been writing a book.（动作还将继续下去）我一直在写一本书.
I have written a book.（动作已经完成）我已经写了一本书.
(5)表示状态的动词不能用于现在完成进行时
I have known him for years. 我认识他已经好几年了.
这类不能用于现在完成进行时的动词还有：love爱，like喜欢，hate讨厌，等.
英语学习—语法—一般将来时
谓语动词构成：I/ we shall work ， he/ she/ it/ you/ they will work
will在陈述句中用于各人称，在疑问句中常用于第二人称
(1)表示将要发生的动作
Perhaps I shall play a visit to France this winter.
我可能在今年冬天到法国观光。
Will you be at home at seven this evening? 今晚七点你会在家吗？
(2)“be going to +不定式”多用于口语中，表示打算、将要发生的事.
What are you going to do tomorrow? 明天你要干什么？
Look at the dark clouds, there is going to be a storm. 看那乌云，暴风雨快来了.
(3)“be +不定式”表示安排或计划好了的动作
When are they to hand in their plan? 他们的计划什么时候交上来？
The queen is to visit Japan next year. 女王将于明年访日.
(4)“be about +不定式”表示即将发生的动作
He is about to retire. 他即将退休.
The English evening is about to begin. 英语晚会即将开始.
(5)come，go等动词用“一般现在时”表示按规定、计划或时间表将要发生的事
He starts next week. 他下个星期出发.
We leave very soon. 我们很快就离开.
(6)come，go等动词在口语中用“现在进行时”表示主语计划将要作的动作
They are leaving for New York tomorrow. 明天他们将要动身前往纽约.
Is your brother departing soon? 你的兄弟很快就要启程吗？
英语学习—语法—过去完成时
谓语动词构成：I/we/you/they had worked; he/she/it had worked
(1)表示过去某一时刻之前已经完成的动作，常与由by，before引导的时间状语连用
We had learned 5000 words by the end of last month.
到上个月底为止我已经学了五千个单词.
I had finished the composition before supper. 晚饭前我就已经把作文写完了.
(2)表示过去某一动作之前已经完成的动作，常与由when，before等连词引导的时间状语从句连用
When I woke up it had already stopped raining. 我醒来的时候雨就已经停了.
I hadn't learned any English before I came here. 我来这儿之前没学过英语.
(3)用于宾语从句或间接引语中
I wondered who had taken the umbrella without permission.
我想知道谁不经允许就把雨伞拿去.
He told me that he had passed the exam. 他告诉我他已通过考试.
(4)某些动词的过去完成时表示一个打算要做却没有做成的事.
I had intended to come over to see you last night, but someone called and I couldn't get away. 昨晚我本打算来看你，但有人来找，脱不开身.
We had hoped to catch the early bus, but found it was gone.
我们本来希望乘早班车，却发现车已开了.
(5)用于表示与过去事实相反的虚拟条件从句中
If you had come yesterday, you would have met him.
如果你昨天来的话，你就已经见到他的面了.
She would have come if she hadn’t been so busy.
要不是这么忙的话，她就已经来了.
英语学习—语法—过去进行时
谓语动词构成：I/he/she/it was working; we/you/they were working
(1)表示过去某一时刻或过去某段时间内正在进行的动作，一般要有表示过去时间的状语
At that time she was working in Oxford. 那时，她正在牛津大学工作.
It was raining at 6 o'clock this morning. 今天早晨六点钟天正下着雨.
What were you doing when I phoned you last night? 昨晚我给你打电话时你在干什么？
(2)可用来表示由过去某时持续到另一时间的.过去动作
He was studying in Cambridge between 1999 and 2001.
在1999年和2001年那段时间，他在剑桥学习.
From January to March I was traveling in Egypt.
从3月份到4月份期间，我在埃及旅游.
(3)表示故事发生的背景
It was a sunny morning. Some people were sitting on the riverbank. Some were walking with their dogs. Several boys were playing football nearby...
一个阳光明媚的清晨.河堤上坐着几个人.有的人在溜狗.不远处有几个男童在踢足球...
(4)与某些动词连用时，代替过去将来时
这类动词有 come来, go去, leave离开, start开始, stay逗留 等.主语必须是人.
He telephoned me, saying that his aunt was coming to see me soon.
他打电话给我，说他姨很快就要看我了.
五、现在完成时
谓语动词构成：I/we/you/they have worked; he/she/it has worked
(1)表示过去某一时刻发生，且延续到现在的动作或状态，这种情况常与表示一段的时间状语连用
We have lived here since last October. 自从去年十月份我们就一直住在这儿。
She has studied English for 5 years. 她学英语已有5年之久
(2) 表示某个已经发生且对现在造成影响或结果的动作，这种情况常不与任何时间状语连用
I'm sorry I have lost my key. I can't open the door.
对不起，我把钥匙弄丢了.门开不了了.
She has left. If you want to see her, you'll have to come tomorrow.
她已经走了.如果你想见她的话，你得明天再来一趟.
英语学习—语法—现在进行时
谓语动词构成：I am =I’m working , she/he/it is = he’s等 working
, We/you/they are =We’re等working
(1)表示说话时正在进行或发生的动作
Please don’t make so much noise, I’m writing a composition.
不要吵闹,我正在写作文.
Let’s set off, it isn’t raining now.咱们出发把,现在天不下雨了.
(2)有时通过上下问可以判断出应采用何种时态
Its four o’clock in the afternoon, the children are playing football on the sports ground.现在是下午4点,孩子们在操场上踢足球.
(3)表示现阶段正在进行而说话时不一定在进行的动作
We are working in a factory these days.这几天我们在一家工厂工作.
They are compiling a dictionary.他们在编一本词典.
(4)在口语中表示主语计划将要做的动作
They are leaving for New York tomorrow.明天他们将要动身前往纽约.
(5)现在进行时与always等副词连用时带有感情色彩
He's always quarrelling with others.他老喜欢跟别人吵架.
She is constantly worrying about her son's health. 她不停地为她儿子的健康担心着.
The boy is forever asking questions.那个男孩老是提问问题.
(6)有的现在进行时句子和一般现在时同义。用现在进行时表示问者的关切心情
How are you feeling today? 你今天感觉如何？
I am looking forward to your next visit.我盼望你下次再来.
Why are you looking so sad? 为什么你看起来这么愁眉苦脸的样子呢？
(7)有的动词用于现在进行时表示“逐渐”的含义
Our study is becoming more interesting. 我们的学习变得越来越有趣了.
The leaves are turning red. 树叶渐渐地变红了.
Wait a moment， I am finishing my supper. 等一会儿，我的晚饭就要吃完了.
(8)“be”动词的现在进行时。“be”动词用于现在进行时表示说话者认为是短暂的、和平常不一样的、甚至是伪装的.
He is being foolish. 他在装傻.
He is being honest. 他表现得特别老实.
I can't understand why he is being so selfish.我不明白此时他为何如此自私.
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