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题型:语法填空-短文语填 难度:0.65 引用次数:132 题号:17242805
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

Researchers recently have found a surprising and     1     (benefit) impact of lightning with the result of a study     2     (publish) in Science. The study found that lightning may play a bigger role in global climate change     3     was previously known by the scientific community. “Lightning increases the atmosphere’s ability to clean itself, the researchers wrote in the study.

The Earth     4     (strike) by lightning nearly 20 million times each year, which travels as much as 10 to 12 miles from a thunderstorm, thus instantly     5     (heat) the air to 50,000 degrees Fahrenheit (华氏温度) according to the National Weather Service.

Researchers realized that the increase in hydroxyl radicals (羟基自由基) in the atmosphere     6     they observed was connected to the lightning     7     (flash). Hydroxyl radicals, also described as a “chemical cleaner”, were important chemical compounds (混合物) found in the atmosphere. As     8     result, the study predicted that between 2% and 16% of the oxidizing (氧化) or cleaning is done by lightning. The oxidizing or cleaning happens     9     (natural) in the Earth atmosphere. Researchers say that more studies will need to be conducted to confirm the degree     10     which lightning contributes to the fight against global climate change.

【知识点】 科普知识

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【推荐1】Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

Children's Fine Motor Skills

Using a fork to eat, zipping up a sweatshirt and turning a doorknob are all things most people do without thinking, but children spend their early years developing and refining these abilities. They are known as fine motor skills,       1     the small muscles of the hands with adequate strength, dexterity (灵巧) and coordination   (协调) to grasp and control objects are used. It is firmly believed       2     later, fine motor skills do help children to succeed in school.     3     are also important in day-to-day life.

    4     (watch) a baby use their uncoordinated arms and legs might be adorable, but these early reactions are practice for the fine motor skills they'll eventually develop.     5     Stephanie Reich, a professor of the University of California, toddlers need to increase the coordination of fine movements in the preschool years.     6     children grow older, these fine motor skills will improve and become more complex. For example, a 4-year-old may hold a crayon with their fist, using their whole hand to draw. But five-year-olds can start using a pencil between the first and middle fingers and thumb, as adults can.

The elementary school years and beyond see     7     (advanced) fine motor skills, such as when children learn to tie shoes between 5 and 6 years old. At about age 7,     8     (improve) performance can be amazingly witnessed. However, every child develops at their own pace. If a single milestone, such as using eating utensils (餐具),     9     (delay), it isn't necessarily cause for concern.

In fact, when working on fine motor skills in the classroom, short lessons provide the most benefit for learning,. Play-based learning is also one of the strategies that are preferred. Teachers may also use hand-eye coordination - the ability of a child's eyes     10     (control) their hands and fingers - to work with children to improve fine motor skills. Using computers, especially a keyboard and mouse, also helps younger children with fine motor skills.

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文章大意:这是一篇说明文。一项研究表明,听各种各样的鸟叫声可能有助于增加我们的幸福感。
【推荐2】阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。

If you are able to step outside and hear many types of birds, you might have a feeling of well-being. A study shows that     1     (hear) diverse (各种各样的) birdsong may help increase our happiness.

The study     2     (do) by researchers at California Polytechnic State University and the research team studied the effects of birdsong on people walking through a park in the US state of Colorado.

    3     biology graduate student, Danielle Ferraro, led the study. Ferraro says, “There could be, sort of, an evolutionary (进化的) reason     4     we have a special     5     (prefer) for birdsong. And the idea is that when we hear birdsong it could signal safety to us.”

There could be some other reasons too. Ferraro states that in many     6     (area) around the world birdsong can also signal the arrival of spring and nice weather. Bird diversity, she adds, can also mean a healthy environment.

Ferraro and her team played     7     (record) songs from a diverse group of birds at certain times of the day on hiking trails in a park. Then they talked with hikers after they passed     8    . Hikers who heard diverse birdsong reported a     9     (great) sense of well-being than those who heard simply the     10     (nature) birds. The researchers suggest that both the bird sounds and biodiversity can increase feelings of well-being.

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Internet memes(网络爆红) can broadly be considered social or cultural ideas that are widely spread on the Internet.

In 1976, biologist Richard Dawkins     1    (use) the word “meme” in his book The Selfish Gene to explain how cultural information and social memories spread from person to person.

Memes are not something new. In fact, memes can date back to the days     2    cultural ideas were spread by word of mouth such as stories and jokes. In     3    past, a cultural idea might spread from person to person through speech. Today, an Internet meme can spread much     4    (rapidly) through emails, text messages and website links.

Most Internet memes are based on things people find    5    (interest) and they attract a wide audience. Internet memes can also be related to other things, though. For example, it is possible     6    (find) Internet memes about made­up stories, social commentary, and some other     7    (subject).

Most Internet memes    8    (create) and spread by teens. They get access    9    the Internet world at a very young age and enjoy    10    (share) their experiences with others through the Internet.

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