With the popularity of 3D movies over the past several years , there was no doubt that the

With the popularity of 3D movies over the past several years , there was no doubt that the technology would make its way into our homes, The question is: Is it really a technology that is going to stay with us , thus deserving an upgrade(升级) at this time?
Many families have recently bought a new TV set, and the idea of changing it just to take advantage of a technology in its infancy(初期)will put many people off the idea. Then there are the additional costs that come along with a 3Dset from needing to get a Blu-ray player that can process the signal to purchasing enough glasses for the entire family to be able to watch a program at the same time.
Another issue is that the glasses are expensive as well as complicated, and have also been known to cause headaches, none of which makes for a pleasant experience.
While manufacturers are working towards glasses-free technology, it just isn’t here yet, and it could be several years before it is commercially successful. That is one of main things that will keep 3D completely in the “fashion” zone for the time being . If the television manufacturers are willing to hold onto the idea until glasses-free choices are available—and they can reach a higher installed(安装)user base—this might very well catch on. Everyone needs to remember, however, that these are businesses, and they are in it to make money. If 3D isn’t selling at the rate they are comfortable with, then they will dump it and move on to the next thing.
Many homes are filled with products that didn’t catch on rapidly and companies ended up leaving them with no support. Do you have an HD DVD player? Remember how the MiniDisc was supposed to replace the CD? For now, it’s easy to see how 3D televisions could join this list of technologies.
There is one upside to the 3D television problem: They have beautiful 2D images. Even if 3D goes away, you still have a great –looking screen and beautiful images. If you are in the market for a new TV and you can afford to drop the couple extra hundred dollars to buy one, you can view it as guaranteeing your purchase in case the technology proves to be effective.
【小题1】We know from the text that 3D TV .A．is easy to operateB．has been fully developed C．has many products attached to itD．has already replaced normal TV sets【小题2】What’s the main idea of paragraph 4?A．3D is fashionable and expensive.B．It’s hard for 3D to be commercially successful.C．Television manufacturers’ only purpose is to make money.D．It’s impossible to create glasses-free technology at the moment.【小题3】The examples of the HD DVD player and CD are to show .A．they are not necessaryB．they are bound to be replacedC．3D TV might not be here to stayD．3D technology needs improving【小题4】The underlined word “upside” in the last paragraph probably means .A．solutionB．exceptionC．characterD．benefit【小题5】What’s the author’s opinion on 3D TV?
A.He is critical of it.
B. He thinks highly of it.
C.It is more effective than expected.
D. It has more beautiful images than 2D.C

(答案→)C 解析：【文章大意】本文是一篇说明文。文章讲述了3D电视的发展前景及其一些弊端。【小题1】C考查推理判断。根据文章第二段中的Then there are the additional costs that come along with a 3Dset from needing to get a Blu-ray player that can process the signal to purchasing enough glasses for the entire family to be able to watch a program at the same time.可知，3D电视还需要许多附带的产品才能满足人们的需要，故选C。【小题2】D考查主旨要义。根据文章第四段中的While manufacturers are working towards glasses-free technology, it just isn’t here yet, and it could be several years before it is commercially successful.可知，这是主题句。这表明目前3D眼睛技术免费还不可能，因为几年之后才能交易成功。故选D。【小题3】C考查细节理解。根据文章第五段中的For now, it’s easy to see how 3D televisions could join this list of technologies.可知，它很快也就被加入淘汰的技术名单中。这说明3D技术不会停留太久。故选C。【小题4】D考查猜测词义。根据文章最后一段中的They have beautiful 2D images. Even if 3D goes away, you still have a great –looking screen and beautiful images.可知，本段讲述3D电视的好处，如果3D不成，还有2D美丽的图像。所以由此推知，其意为：好处。故选D。【小题5】A考查作者的看法。根据文章的整体内容可知，作者第一段发问对3D质疑，接下来说附带产品太多，可能这种技术很快消失。所以作者持批评态度。故选A。

我好好复习下