(2013·湖南.34)-I don't understand why you didn't go to the lecture yesterday afternoon.-I'm so sorry.But I my homework.A．had done B．was doing C．would do D．am doing 题目和参考答案——青夏教育精英家教网—

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(2013·湖南，34)—I don't understand why you didn't go to the lecture yesterday afternoon.

—I'm so sorry.But I________my homework.

A．had done B．was doing C．would do D．am doing

【解析】

考查动词时态。根据语境，对话中的第二个人昨天下午没去听课，而是在做作业，故使用过去进行时态，表示过去一段时间内在持续发生的动作，故选B。

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There is no doubt that the Internet has changed the way that millions of people communicate with the outside world. And there is a lot of buzz and activity around social networking. One of the most interesting opportunities which arise from this is lifestreaming.

When people hang out with friends online, they talk about music, review movies, share travel stories, exchange photos and discuss video games. And they chat about life and recommend books as well.

Lifestreaming is an online record of a person's daily activities. It will allow you to climb inside the head of someone. And you can also experience their day through a digital collection of public text messages, blog posts and photos. What's more, thanks to mobile broadband(宽带) and tiny video cameras, you can also watch a live video stream of them as they move around their world.

Lifestreaming offers the ability to store and broadcast this information exchange. People now can create，collect and publish their interests and activities. They are creating content that reflects their life.

Generally speaking, the lifestreamers have been broadcasting their lives 24 hours a day. Facebook havs now made it possible to load all these other Websites directly into your Facebook profiles. Now users can display their blog posts from their blog. They can display the drunken pictures that they uploaded. The embarrassing videos they have from their YouTube profile can also be shown, and so much more.

Lifestreaming is the newest way to let your friends know what you're up to, and you needn't force them to follow you across many places. Not everyone is into lifestreaming, but it is one of the hottest areas for development out there. And there are a large amount of services offering a way to collect all the little bits of your online life，

Life streaming might be described as a variation of microblogging, because they all focus on the brevity(简洁) of content. But you cannot ignore the difference between them. With microblogging, you write messages directly within the application itself－as you might send a text message. But with lifestreaming application, you collect your other content from around the Web and arrange it into a single stream of short bits of information.

With lifestreaming, people now can learn more about people they trust. By selectively following lifestreams, people are changing how they get information.

Title：Lifestreaming
The _1.__of lifestreaming	Lifestreaming is an online record of a person's daily activities.
The _2.__ people do with friends online	Talk about music, review movies, share travel stories, exchange photos, discuss video games, chat about life and recommend books.
The __3.__lifestreaming brings	·You can __4.__your friends' day through text messages, blog posts, photos and a live video stream of them. ·You can create content _5._your life. ·Lifestreams have been broadcasting their lives the __6.__day through various ways. ·It's the newest way to leave your friends know what you are busy with, without __7._them to follow you across many places.

续表

Lifestreaming VS microblogging	The __8.__	They all give special __9.__on the brevity of content.
The difference	With microblogging, you write messages __10.__.
With lifestreaming, you collect your other content from around the Web and arrange it.