replaced and gets planted in the ids’ room, and suddenly one day, you have a TV in every room of the house,” said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We’re not just eeping these old devices – we continue to use them. According to the analysis of Babbitt’s team, old destop monitors and bo TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions (排放) more than doubling during the 1992 to 2007 window.

So what’s the solution (解决方案)? The team’s data only went up to 2007, but the researchers also eplored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and destop computers could cut energy consumption by 44%. 32. What does the author thin of new devices? A. They are environment-friendly. C. They cost more to use at home.

B. They are no better than the old. D. They go out of style quicly.

33. Why did Babbitt’s team conduct the research? A. To reduce the cost of minerals. B. To test the life cycle of a product. C. To update consumers on new technology. D. To find out electricity consumption of the devices. 34. Which of the following uses the least energy? A. The bo-set TV. C. The LCD TV.

B. The tablet.

D. The destop computer.

35. What does the tet suggest people do about old electronic devices? A. Stop using them. C. Upgrade them.

B. Tae them apart. D. Recycle them.

【文章大意】本文是一篇科普说明文。文章讲述了新旧电子设备的差别，旧电子设备耗能高、不环保。所以作者主张使用新电子设备。 32.A

【解析】观点态度题。根据文章第一段中的That’s bad news for the environment – and our wallets – as these outdated devices consume much more energy than the newer ones that do the same things.可知，使用旧的电子设备对环境和我们的钱包都是坏消息。这些过时的设备做相同的事情要消耗比新设备更多的能量。由此推知作者认为新电子设备环保、节能。故选A。

33.D

【解析】细节理解题。根据文章第二段中的To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New Yor traced the environmental costs for each product throughout its life 34.B

【解析】细节理解题。根据文章最后一段中的They found that more on-demand entertainment viewing on tablets instead of TVs and destop computers could cut energy consumption by 44%.可知，平板电脑是耗能最少的电子设备，可以降低44%的耗能。故选B。 35.A

【解析】推理判断题。根据文章的整体内容可知，因为旧的电子设备耗能高，不环保。所以作者建议停止使用旧的电子设备。故选A。 【点睛】

熟悉比较句型是彻底理解本文的关键，也是解题的关键。本文中的比较句型：

1. That’s bad news for the environment – and our wallets – as these outdated devices consume much more energy than the news ones that do the same things 做同样的事，旧的过时的装置比新装置消耗更多能，对环境有害，浪费钱财。

2. According to the analysis of Babbitt’s team, old destop monitors and bo TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions (排放) more than doubling during the 1992 to 2007 window.

根据Babbitt团队的分析，旧的桌面监视器和阴极射线管箱式电视机是最差的电子设备，它们的耗能和温室气体的排放是1992到2007window的两倍还多。

3. They found that more on-demand entertainment viewing on tablets instead of TVs and destop computers could cut energy consumption by 44%.他们发现在平板电脑上看的随需变化的娱乐节目比在电视和电脑上看耗能减少了44%。

2.【2018·全国卷II，B】

Many of us love July because it’s the month when nature’s berries and stone fruits are in abundance. These colourful and sweet jewels form British Columbia’s fields are little powerhouses of nutritional protection.

Of the common berries, strawberries are highest in vitamin C, although, because of their seeds, raspberries contain a little more protein (蛋白质), iron and inc (not that fruits have much protein). Blueberries are particularly high in antioidants (抗氧化物质). The yellow and orange stone fruits such as peaches are high in the carotenoids

可知，Babbitt’s team研究的目的是弄清楚这些设备用了多少电。故选D。

we turn into vitamin A and which are antioidants. As for cherries (樱桃), they are so delicious who cares? However, they are rich in vitamin C.

When combined with berries of slices of other fruits, froen bananas mae an ecellent base for thic, cooling fruit shaes and low fat “ice cream”. For this purpose, select ripe bananas for freeing as they are much sweeter. Remove the sin and place them in plastic bags or containers and freee. If you lie, a squeee of fresh lemon juice on the bananas will prevent them turning brown. Froen bananas will last several wees, depending on their ripeness and the temperature of the freeer.

If you have a juicer, you can simply feed in froen bananas and some berries or sliced fruit. Out comes a “soft-serve” creamy dessert, to be eaten right away. This maes a fun activity for a children’s party; they love feeding the fruit and froen bananas into the top of the machine and watching the ice cream come out below. 24. What does the author seem to lie about cherries? A. They contain protein.

B. They are high in vitamin A. D. They are rich in antioidants.

C. They have a pleasant taste.

25. Why is fresh lemon juice used in freeing bananas? A. To mae them smell better.

B. To eep their colour. D. To improve their nutrition.

C. To speed up their ripening. 26. What is “a juicer” in the last paragraph? A. A dessert.

B. A drin. D. A machine.

C. A container.

27. From which is the tet probably taen? A. A biology tetboo. C. A research paper.

B. A health magaine.

D. A travel brochure.

【文章大意】本文是一篇说明文。文章主要介绍并比较了几种水果各自的营养价值和健康功效，并列出了一些食用这些水果的方法。 24.C

【解析】细节理解题。题干问的是，作者喜欢樱桃什么。根据第二段中As for cherries (樱桃), they are so delicious who cares?（至于樱桃，因为它们很好吃谁在乎呢?）可知，作者在乎的是它的美味。故选C。 25.B

【解析】细节理解题。根据第三段中的If you lie, a squeee of fresh lemon juice on the bananas will prevent them turning brown.可知，往香蕉上滴新鲜的柠檬汁是为了防止香蕉变成褐色，故新鲜的柠檬汁是被用保持香蕉

的颜色的。故选B。 26.D

【解析】词义猜测题。根据最后一段中they love feeding the fruit and froen bananas into the top of the machine and watching the ice cream come out below可知，孩子们喜欢把一些水果和冷冻的香蕉放入到这台机器的上部，然后看到冰激凌从下面出。故可以推出a juicer就是一台机器。故选D。 27.B

【解析】文章出处题。文章首先指出七月是水果盛产的季节，并指出各种水果富含的营养，最后一段指出我们可以用a juicer为孩子们做一些甜点和冰激凌，故最可能是从健康杂志上摘取的文章。A项意为：生物教科书；B项意为：一本健康杂志；C项意为：一篇研究论文；D项意为：一本旅游手册。故选B。 3.【2018·全国卷III，B】

Cities usually have a good reason for being where they are, lie a nearby port or river. People settle in these places because they are easy to get to and naturally suited to communications and trade. New Yor City, for eample, is near a large harbour at the mouth of the Hudson River. Over 300 years its population grew gradually from 800 people to 8 million. But not all cities develop slowly over a long period of time. Boom towns grow from nothing almost overnight. In 1896, Dawson, Canada, was unmapped wilderness(荒野). But gold was discovered there in 1897, and two years later, it was one of the largest cities in the West, with a population of 30,000.

Dawson did not have any of the natural conveniences of cities lie London or Paris. People went there for gold. They travelled over snow-covered mountains and sailed hundreds of miles up icy rivers. The path to Dawson was covered with thirty feet of wet snow that could fall without warming. An avalanche(雪崩) once closed the path, illing 63 people. For many who made it to Dawson, however, the rewards were worth the difficult trip. Of the first 20,000 people who dug for gold, 4,000 got rich. About 100 of these stayed rich men for the rest of their lives.

But no matter how rich they were, Dawson was never comfortable. Necessities lie food and wood were very epensive. But soon, the gold that Dawson depended on had all been found. The city was crowded with disappointed people with no interest in settling down, and when they heard there were new gold discoveries in Alasa, they left Dawson City as quicly as they had come. Today, people still come and go — to see where the Canadian gold rush happened. Tourism is now the chief industry of Dawson City — its present population is 762. 24. What attracted the early settlers to New Yor City? A. Its business culture. B. Its small population. C. Its geographical position.