概括大意和完成句子题型是由两部分组成，一是概括大意，二是完成句子。这二者相辅相成，不要觉得麻烦，这正是考试的魅力。在选择标题时是锻炼大家阅读及概括的能力，选择选项完成句子又是体现大家逻辑分析的能力。这种题型的难点也在于此，看看下面这篇真题文章吧。

First Image-recognition Software

1. Dartmouth researchers and their colleagues have created an artificial intelligence software that uses photos to locate documents on the Internet with far greater accuracy than ever before.

2. The new system, which was tested on photos and is now being applied to videos, shows for the first time that a machine learning algorithm (运算法则) for image recognition and retrieval is accurate and efficient enough to improve large-scale document searches online. The system uses pixel (像素) data in images and potentially video — rather than just text — to locate documents. It learns to recognize the pixels associated with a search phrase by studying the results from text-based image search engines. The knowledge gleaned (收集) from those results can then be applied to other photos without tags or captions (图片说明), making for more accurate document search results.

3. "Over the last 30 years," says Associate Professor Lorenzo Torresani, a co-author of the study, "the Web has evolved from a small collection of mostly text documents to a modern, massive, fast-growing multimedia data set, where nearly every page includes multiple pictures or videos. When a person looks at a Web page, he immediately gets the gist (主旨) of it by looking at the pictures in it. Yet, surprisingly, all existing popular search engines, such as Google or Bing, strip away the information contained in the photos and use exclusively the text of Web pages to perform the document retrieval. Our study is the first to show that modern machine vision systems are accurate and efficient enough to make effective use of the information contained in image pixels to improve document search."

4. The researchers designed and tested a machine vision system — a type of artificial intelligence that allows computers to learn without being explicitly programmed — that extracts semantic (语义的) information from the pixels of photos in Web pages. This information is used to enrich the description of the HTML page used by search engines for document retrieval. The researchers tested their approach using more than 600 search queries (查询)on a database of 50 million Web pages. They selected the text-retrieval search engine with the best performance and modified it to make use of the additional semantic information extracted by their method from the pictures of the Web pages. They found that this produced a 30 percent improvement in precision over the original search engine purely based on text.

23. Paragraph 1 ____

24. Paragraph 2 ____

25. Paragraph 3 ____

26. Paragraph 4 ____

A. Function of the new system

B. Improvement in document retrieval

C. Publication of the new discovery

D. Problems of the existing search engines

E. Popularity of the new system

F. Artificial intelligence software created

27. The new system does document retrieval by ____.

28. The new system is expected to improve precision in ____.

29. When performing document retrieval the existing search engines ignore __ __

30. The new system was found more effective in document search than the ____

A. using photos

B. description of the HTML page

C. current popular search engines

D. document search

E. information in images

F. machine vision systems

23-26. F A D B

27-30.　A D E C

带着答案再做一遍，这一次肯定有不同的感受。概括大意和完成句子题型不是简单的一个方向的考试，而是双方面齐头并进。好的训练方法，大家可以上网上去搜索。但是要记住，扎实的训练是前进的基础，平时多用功考试不发懵。