知，本段主要讲述了厄恩斯特·钱恩和他的老板霍华德·弗洛里发现了弗莱明的笔记并决定测试青霉素，最终成功地进行了实验，证明了青霉素的有效性。
训练2：（泰安中考）Light pollution can be greatly reduced(减少) with a few simple actions. The first is to stop wasting light. Outdoor lights can be covered so that the light shines down to the ground only where it's needed. People can be more careful about using lights only when and where they are necessary. Besides, people can choose light bulbs(灯泡) with the smallest effective amount of brightness. Most bright white lights, including LEDs, give off a large amount of shorter-wavelength(波长较短的) blue light, which brightens the sky more than any other color of light. Choosing light bulbs with longer-wavelength light in yellow or orange can help prevent harmful light pollution.
3. What does the last paragraph mainly tell us?

A.How to save electricity in our daily lives.
B.How to choose light bulbs correctly.
C.Two ways of reducing light pollution.
D.The advantages and disadvantages of man-made light.

3. C 段落大意题。根据"Light pollution can be greatly reduced with a few simple actions. The first is to stop wasting light ... Besides, people can choose light bulbs with the smallest effective amount of brightness."可知,最后一段主要介绍了减少光污染的两种方法:停止浪费光线和选择合适的灯泡。

例题3:(包头中考)Classical Chinese gardens are purposely designed so that no matter where you stand, you can never see the whole thing at once. The mystery and the discovery have helped the classical gardens of China, especially those in Suzhou, remain popular attractions after all these years.
Put simply, the aim of a classical Chinese garden is to deepen one's admiration of nature. Besides just relaxing in nature, the classical Chinese gardens have another purpose—to inspire artistic expression like poetry, literature or painting. Nearly all Chinese gardens feature the things in the list below.
4. Which of the following is the best title for the text?
A. Nature Speaks for Itself
B. Chinese Gardens and Western Gardens
C. Getting Lost in Classical Chinese Gardens
D. Finding Ways to Modern Arts and Buildings
解析:C 标题归纳题。根据“Classical Chinese gardens are purposely designed so that no matter where you stand, you can never see the whole thing at once.”和“Nearly all Chinese gardens feature the things in the list below.”可知，文章主要介绍了中国古典园林的特点和构成元素，以及人们在其中的体验，由此可知“迷失在中国古典园林中”最适合作为文章标题。
训练3: ★★★ (福建中考)So why do we know so little about the deep sea? Well, getting to those depths is very difficult and requires high technology that simply didn't come into being for most of human history ...
Since then, high technology has been developed to help explore the deep sea, including satellites. But why is deep-sea exploration still so difficult? Well, at greater depths it is freezing (极冷的), everything is completely dark, and the pressure can be over 1,000 times greater than that on the surface.
Our future depends on learning more about our oceans, and it is possible for us to really understand what is ongoing below the surface.
5. What could be the best title for the text?
A. Hidden Treasures in Deep Sea
B. Unlocked Secrets of Deep Sea
C. Deep-sea Exploration: Into the Freezing Depths
D. Deep-sea Exploration: The Past and the Future

4. C 标题归纳题。根据“Classical Chinese gardens are purposely designed so that no matter where you stand, you can never see the whole thing at once.”和“Nearly all Chinese gardens feature the things in the list below.”可知，文章主要介绍了中国古典园林的特点和构成元素，以及人们在其中的体验，由此可知“迷失在中国古典园林中”最适合作为文章标题。
5. C 标题归纳题。本文主要介绍了探索深海的重要性,根据"Since then, high technology has been developed to help explore the deep sea, including satellites. But why is deep-sea exploration still so difficult?"可知主要是介绍深海探索的现状,并不是过去与未来。
易错点拨
本题易错选D项。文章在开头介绍了深海研究的过去,又在结尾点明了深海研究的未来,但本文着重讲了现状,即为何深海探索现在如此困难。