现在进行时是由助动词be 的人称形式加现在分词构成的，主要表示现在或现在这一阶段正在进行的动作，更重要的是，它有时还可用来表示一个按计划或安排将要发生的动作， 即我们通常所说的“现在进行时表将来”。
适用此用法的动词有go, come, heave, start, arrive, work, sleep, stay, play, do, have, wear等。请看例句：
We are leaving on Friday. 我们星期五动身。
Are you going anywhere tomorrow? 明天你到哪里去吗？
Are you staying here till next week? 你要待到下星期吗？
I’m seeing the doctor today. 我今天去看大夫。
Mr Smith is giving a lecture in English this afternoon. 史密斯先生今天下午来作英语报告。
How many of you are coming to the party? 你们有多少人要来参加晚会？
We’re having a holiday next Monday. 我们下星期一放假。
【小试牛刀】
一、指出下列各句中的“be + v-ing”结构哪些属于现在进行时，哪些属于一般将来时。属于现在进行时的句子在题前括号内填“A”，属于一般将来时的句子在题前括号内填“B”。
( )1. Don’t turn on the TV. Grandma is sleeping now.
( )2. Keep quiet! Our teachers are having a meeting in the next room.
( )3. The summer vacation will begin next week. David is coming to stay with us.
( )4. I am going to visit my grandparents next Sunday.
( ) 5. Listen! They are talking about the interesting movie. Let’s join them.( ) 6. My uncle is leaving for Hong Kong for a trip on Monday.
二、根据汉语提示请用现在进行时完成下列句子。（每空一词）
7. 明天你离开时记住要给史密斯先生道别。
Please remember to say goodbye to Mr. Smith when you ______ ______ tomorrow.
8. 你将在即将到来的暑假中做些什么？
What ______ you ______ on the coming summer vacation?
9. 她下个月将移民英国。
She ______ ______ to England next month.
10. 赫克托下周一到达北京。
Hector ______ ______ in Beijing next Monday.
Keys: 1. A 2. A 3. B 4. B 5. A 6. B 7. are leaving 8. are; doing 9. is moving 10. is arriving