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Do you ever wonder why trees begin to bu...

Do you ever wonder why trees begin to bud (发芽) earlier in some cities? Scientists finally found the answer but it’s not very pleasant. New science suggests a relationship between light pollution and the timing when trees produce buds, which signals the arrival of the spring season.

Light pollution is defined by the Lighting Research Center as the unwanted consequence of outdoor lighting such as street lights. Excessive (过多的) man-made light at night results in disturbed natural cycles, and also prevents the observation of stars and planets at night. But its effect on the environment goes beyond that.

By studying some trees, researchers found out that trees that are more exposed to artificial lighting at night bud up to 7.5 days earlier than those at the natural nighttime setting. And they found out that light had a more significant effect than temperature when the buds came out. The early budding may cause problems for insects, which feed on leaves, and the birds which then feed on them in turn. Professor Richard Ffrench-Constant, who helped lead the research, explained that more than the budding of trees, the study implies the danger to the balance of the ecosystem. “At the moment, caterpillars (毛毛虫) are timed to hatch to make the most of the opportunities to feed on freshly budded leaves, and birds hatch in time to feed on the young caterpillar,” he said.

Migratory (迁徙的) birds are also negatively affected by light pollution. The glare might confuse them and make them lose their flying sense. The phenomenon might explain why some birds accidentally knock into buildings.

Such results stress the need to pursue studies that aim to measure the effect of light pollution. If the issue were left to continue, it is estimated that by 2100, spring would begin almost a full month earlier than it does today.

1.What will happen if there is too much man-made light?

A. People’s eyesight will be damaged.

B. The ecosystem will likely lose its balance.

C. No stars or planets may be observed at night.

D. Animals’ living habits may change suddenly.

2.How does the early budding affect insects or plants?

A. It will cause the rising number of insects.

B. It could lead to trees growing fewer leaves.

C. It may result in some insects going hungry.

D. It might push insects to hatch more slowly.

3.What does the author want to tell us in the last paragraph?

A. The effect of light pollution is destructive.

B. The spring of 2100 will become much longer.

C. Light pollution should be taken seriously.

D. A further study on light pollution is scheduled.

4.What is the suitable title for the passage?

A. Why spring comes earlier in some cities

B. Why light pollution needs to be studied

C. How trees’ early budding takes place

D. How much light is “too much”

 

1.B 2.C 3.C 4.A 【解析】本文通过对灯光污染的分析,指出为什么现在春天来得要早一些的原因。 1.B细节理解题。根据第三段尤其是Professor Richard Ffrench-Constant, who helped lead the research, explained that more than the budding of trees, the study implies the danger to the balance of the ecosystem.可知,太多的人造灯光可能使生态系统失去平衡。故选B。 2.C推理判断题。根据第三段The early budding may cause problems for insects, which feed on leaves, and the birds which then feed on them in turn.可以推断出,早发芽造成了生态系统的不平衡,所以导致一些昆虫会被饿死。故选C。 3.C段落大意题。根据最后一段中作者预计,如果这种情况继续下去,到2100年的春天会比现在早到一个月。故作者是想告诉我们要认真对待这个问题。故选C。 4.A主旨大意题。本文通过对灯光污染的分析,指出为什么现在春天来得要早一些的原因。故A项“为什么在一些城市春天来得早?”是最佳标题。 【名师点睛】 标题判断题解题技巧 标题判断题是英语阅读理解的必考项目,它主要考查考生对文章主题思想的把握和抽象概括语言的能力,解标题判断题应注意下列几点:1.标题应具备高度的概括性;2. 标题应具备强烈的针对性;3. 标题应具备一定的醒目性。而我们提炼主题配备标题有下列三种途径: 1. 由首节提炼主题配备标题 因为首节往往是作者最想给读者介绍的内容,是作者最想打动读者、震憾读者的内容,因此往往体现了文章主旨。显然认真阅读文章首节,领会其精神实质,往往可以提炼出文章主题,从而成功地给文章配备标题。例如C篇第4小题标题判断题。本文主要介绍的是中国航空管理局出台新的政策,要求飞行员必须通过普通话四级测试,以避免因个人的方言而在工作中造成误解。这个标题就是根据首节(第一段)的内容总结提练的。所以可知最佳标题A. Chinese Pilots Told to Get Rid of Regional Accents.故选A. 2. 由末节提炼主题配备标题 因为末节是作者想给读者留下最后的印象,是作者给读者所做的最后嘱托,因此末节常常体现文章的主题。显然认真阅读文章的末节内容,领会作者的写作目的,常常可以准确地获得文章主题,顺利地给文章配备标题。 3. 同时由首节和末节提炼主题配备标题 不少情况下文章首节提出主题,而末节重现主题,因此认真阅读首节与末节可以提炼主题并检验主题,从而成功给文章配备标题。例如D篇第4小题标题判断题。本文通过对灯光污染的分析,指出为什么现在春天来得要早一些的原因。本文在首节(第一段)which signals the arrival of the spring season.中点名了文章主题;又在本文末节(最后一段)If the issue were left to continue, it is estimated that by 2100, spring would begin almost a full month earlier than it does today.中又再次暗示了文章的主题:A. Why spring comes earlier in some cities.为最佳题目,故选A。
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Under new rules posted by the Civil Aviation (航空) administration of China on Friday, pilots will have to pass a “level four” test of Mandarin Chinese, China’s official language. Those who speak with an accent that “often impedes” comprehension will not pass. These rules take effect in January 2016.

China’s 56 ethnic groups speak more than 80 languages and dialects. Even native Mandarin speakers can have trouble communicating with each other depending on the strength of their accents, which can be mutually unintelligible (难理解的).

One flight trainer illustrated the scope for linguistic confusion, especially when common English aviation terms are used. Asked if there is a problem on board, a Chinese pilot might answer in the negative with the words mei you, or “there isn’t.” But someone speaking with a heavy Sichuan accent would pronounce mei you as “May day” unconsciously parroting the universally recognized distress call (遇难信号).

Like their international counterparts (对应物), Chinese aviators have developed codes to avoid confusion resulting from homonyms (同音异义字) or near-homonyms. They use the terms yao for one and guai for seven, which are otherwise pronounced yi and qi respectively and easily confused.

The new rule could affect all pilots, who must renew their license every six years, and adds to a growing list of burdens for the profession.

1.What does the underlined word “impedes” in Para 1 mean?

A. improves    B. helps

C. misleads    D. limits

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A. Sichuan dialect has the contrary meaning to Mandarin.

B. Native Mandarin speakers can understand each other well.

C. It isn’t necessary for a pilot to pass the test before January 2016.

D. “May day” is a distress call in our everyday life.

3.What is the purpose of the Chinese aviators using the terms yao for one and guai for seven?

A. To avoid misunderstanding.

B. To communicate with their international counterparts.

C. To pass the test.

D. To avoid their accents.

4.What is the best title for the passage?

A. Chinese Pilots Told to Get Rid of Regional Accents

B. Chinese Pilots

C. Rich Chinese Languages

D. Hard to Be a Chinese Pilot

 

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Anne LaBastille was born in New York City and grew up in New Jersey. Her first experience with the wilderness was in the Adirondacks in the northeast of New York, where she worked at a summer resort to earn money for college tuition by caring for the horses, giving riding lessons, and working as a waitress. And she has many chances to begin her adventure in the Adirondack wilderness.

Anne returned to school in the fall, but she continued to spend as much time as she could in the Adirondacks. She grew to love her time alone in the mountains. Anne graduated from college with a bachelor’s degree in conservation of natural resources and began working for the National Audubon Society in Florida as a wildlife tour leader.

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In Washington, Virginia and Maryland, the final months of the year have many festivals. Whether you are into a theatre environment, medieval times or a book festival, there is an event for you.

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假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有

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