现在进行时

1. 现在进行时的形式:
is/are/am + 现在分词

2. 现在进行时的用法:
1） 正在进行的动作和发生的事
* We are just having breakfast. 我们正在吃早餐。
* Be quiet! The baby is sleeping. 安静，孩子在睡觉
* Look at the children over there．What are they doing right now ？看那边的孩子。他们在干什么？
* Who is singing in the next room? 谁在隔壁唱歌？
* She's not listening to me. 她没在听我说。
* It's raining again! 天又下雨了！

2） 现阶段正在发生的事
* He is teaching French．他在教法语。
* She's doing a project on pollution recently. 她最近在研究一个关于污染的项目。
* The Chinese people are building socialism. 中国人民正在建设社会主义。
* Is my daughter working hard this term? 我女儿这学期学习努力吗？

3） 表示将来动作
a) 口语中
* Gina and Cindy are meeting tonight． 吉娜和辛迪今晚要会面。
* When are you starting? 你们将什么时候动身?
* I'm not waiting for her any longer. 我不再等她了。
* Tomorrow, the Whites are flying to Paris. I will see them off. 明天怀特夫妇将要飞往巴黎。我会给他们送行。
* —Are you doing anything tomorrow afternoon？—你明天下午有事吗？
—Yes，I'm playing tennis with Ann. —有，我要跟安打网球。
* I'm meeting Peter tonight．He is taking me to the theatre．今天晚上我要跟彼得会面。他要带我去看戏。
* They're getting married next month. 他们下个月结婚。

b) 现在进行时可用在时间和条件从句中表示未来的情况。
* If I am still sleeping when he comes, wake me up, please. 他来时如果我还在睡觉，请你唤醒我。
* When you are passing my way, please drop in. 　当你路过我家时，请进来坐坐。
* Don't mention it when you are talking with him. 你和他谈话时不要提及这件事。

c) be going to 用于表示将来。
* We are going to have a class meeting this afternoon.今天下午我们打算开班会。
* Is your sister going to have a swim tomorrow？你姐姐明天要去游泳吗？
* Look at the black clouds. It's going to rain.看那些乌云，快要下雨了。
* He's very ill. I'm afraid he's going to die. 他病得厉害，我恐怕他将要死了。
* It's going to be a difficult job, but maybe he can do it. 那会是个艰难的工作，不过也许他办得到。
* The traffic's going to be awful, but what can we do? 交通肯定会很糟，但又有什么办法呢？
* If you don't try, how do you know you're going to be rejected? 如果你不去试，你怎么知道你会被拒绝呢？

4) 表示经常性动作
* The boy is constantly lying. 这孩子老是撒谎。
* You are always doing well. 你一向干得不错。
* She is always coming late. 她老是迟到。
* She's always helping people. 她老是帮助别人.
* The boy is forever asking questions. 那个男孩老是问问题。
* You are wasting my money all the time! 你老是浪费我的钱！