答案：B　　In a world with limited land, water and other natural resources (资源), the harm from the traditional business model is on the rise. Actually, the past decade has seen more and more forests disappearing and globe becoming increasingly warm. People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable (可持续的)ways. That means growth with low carbon or development of sustainable

products.In other words, we should keep the earth healthy while using its supply of natural resources.

Today, sustainable development is a proper trend in many countries....In recent years the markets for sustainable products have grown by more than 50%.

45.What is the main purpose of the passage?

A.To introduce a new business model.

B.To compare two business models.

C.To predict a change of the global market.

D.To advocate sustainable development.

解析：主旨大意题。在第一段中，出现了转折的Actually，其后的“People now realize that this unhealthy situation must be changed，and that we must be able to develop in sustainable(可持续的)ways”是主题句，随后的两句话都是对这一句进

行解释;句中两个must清楚表明了作者“提倡可持续发展”，第二段首句“Today，sustainable development is a proper trend in many countries”进一步说明，作者写这篇文章的主要目的是“提倡可持续发展”。故选D。

答案：D

Although the use of the expression is an insincere, meaningless social custom at times, there is nothing wrong with the sentence except that it is little uninteresting. The salesgirl, the waitress, the teacher, and all the countless others who speak it without thinking may not really care about my day. But in a strange and comfortable way, it's nice to know they care enough to pretend they care when they really don't care all that much. While the expression may not often

be sincere, it is always spoken. The point is that people say it all the time when they like.

30.What is the best title of the passage?

A.Have a Nice Day — a Social Custom

B.Have a Nice Day — a Pleasant Gesture

C.Have a Nice Day — a Heart­warming Greeting

D.Have a Nice Day — a Polite Ending of a Conversation

解析：主旨大意题。由该段的第一句(特别是custom一词)可知。

答案：A

(2013年高考)Imagination and fantasy can play an important role in achieving the things we fear.Children know this very well. Fred Epstein，in his book If I Make It to Five，tells a story he heard from one of friends about Tom，a four­year­old boy with a cancer in his back bone.He came through several operations and a lot of pain by mastering his imagination

…

It doesn't mean that you should dress as a superhero for you next job interview. But，next time you are tested in a way that seems impossible, imagine what it would take to overcome it. Become the person you need to become to win over your challenge and do it in your mind first. So，let your imagination run wild，and dare to dream.

30.What is the purpose of the passage?

A.To tell us an interesting story.

B.To help us make right decisions.

C.To advise us to care about children.

D.To encourage us to use our imagination.

解析：主旨大意题。由文章首句Imagination and fantasy can play an important role in achieving the things we fear和全文末句So, let your imagination run wild, and dare to dream可知，作者写这篇文章的目的是鼓励我们运用我们的想象力。

答案：D

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