More than 11,000 scientists from 153 countries have sounded the alarm on climate change. In a paper     1    (publish) last week in the journal BioScience, they signed a declaration(声明) stating clearly that planet Earth is facing a climate emergency, saying that if no changes     2    (make) , the world will face untold suffering. The evidence that the scientists collected reveals an undeniable truth     3     human activities have been causing global warming from the fast rise of fossil fuel consumption     4     the increase in greenhouse gas emissions(排放) over the past 40 years.

The scientists also gave some instructions to fight against global warming, proposing six actions to prevent     5    (far) disasters: stabilizing population     6    (grow) by investing into family-planning services and girls’ education, replacing fossil fuels, cutting the emissions of climate pollutants, eating less meat, restoring and protecting     7    (ecosystem) , and building     8     carbon-free economy.

The scientists say the climate crisis is    9    (close) related to human activities, so they call on people     10    (change) their life styles. But these measures are comparatively abstract. Therefore, it is high time for policymakers to figure out more practical measures that can bring down carbon emissions.

Chinese calligraphy is an artistic practice of writing Chinese characters, often with a brush and ink on xuan paper. The     1     (develop) of Chinese calligraphy began alongside the earliest Chinese characters     2     date back to the Shang Dynasty (c. 16th century—11th century BC). Over time, calligraphy took shape step by step as     3     form of art rather than just a means of record.

Calligraphy is a difficult art. The type of brush, ink and paper can all affect the output. From brush direction     4     speed of writing, every turn of the wrist also     5     (matter). Structure of individual characters and spatial layout (布局) as a whole influence     6     (it) quality. Moreover, it is said that even the feelings and values of the writer are directly reflected on calligraphy.

Lan Ting Xu,     7     (create) by Wang Xizhi during the Eastern Jin Dynasty (317—420), is one of the most celebrated     8     (masterpiece) of Chinese calligraphy. Its expressive brushwork brought it both historical     9     cultural significance in Chinese literature. Calligraphy is also within reach, like the Spring Festival couplets (春联).

Where there is Chinese language, there is Chinese calligraphy, and where there is calligraphy, there is beauty. The art is still     10     (high) valued today, for it is more than just writing, it is a living heritage.

29 outstanding Party members were conferred the July 1 Medal, one of     1     was Zhang Guimei. She founded a high school,     2    (offer) free education to girls in a less­developed area of Yunnan Province.

Zhang’s efforts helped nearly 2,000 girls go to college. She visited poor     3     (family) and persuaded them not to let their children drop out of school. This shows     4     educators should work with a greater sense of responsibility.

Another important lesson from Zhang’s story is that we should take a long­term view of rural education. Zhang has been working     5     (improve) education in rural areas because of her high degree of     6     (commit) and making the education of talents as her goal.     7    is because of the very goal that Zhang could overcome difficulties, and help the poor throw off     8     wrong idea that “education is useless”. It also reminds us that more efforts should     9     (make) to develop education in rural areas, and we should focus     10     long­term goals and interests.

Mike used to work at a circus. At first, he was fond of this job, but later he found it hard to entertain the viewers,     1     he decided to leave. One day he saw an     2    (advertise) in a newspaper asking for a clown doctor. The employer was     3    (deep) impressed by him, so finally he got the job. His job is     4    (entertain) the young patients when they are in a bad mood. One day my little son was so mischievous that he fell off a tree and     5     (injure) his ankle. When the doctor was     6    (examine) him, he was in great pain. Just at that time Mike wearing curly wig appeared and began to try his best to comfort him and cheer     7    (he) up. To our amusement, Mike was acting there just like a lovely monkey! I was impressed by his interaction with my son.     8     he did really did the trick! My son just cracked a smile as if he had forgotten his pain. In the end he concluded his performance with a soft song. Later, his fellow doctors told us Mike was so     9    (gently) and patient that he never told off his patients and was never cruel to them, either. In     10     word, he deserves to be praised by the patients.

As a new senior high school student, you will meet a lot of challenges. The following     1     (be) some tips to help you lead a meaningful life.

Firstly, it is important for you     2     (make) the most of amazing resources in the school to realize your potential. At the same time, make great     3     (effort) to get over difficulties and seize every opportunity to improve     4     (you) ability. The more knowledge you acquire, the more confidence you will have. Secondly, keep in mind     5     good study habits, useful skills and a positive attitude are of equal     6     (important). Plan your study     7     (careful) and focus on your lessons in class. After class you’d better exchange words     8     your classmates to improve your communication skills. In a word, learn to balance between your study     9     hobbies and work out a reasonable plan. Soon, you will be     10     outstanding individual!

Have you ever     1     (imagine) what the world looks like through the eyes of a bee? You can try it out with the Mica Toolbox.

The Mica Toolbox is a free plug-in(插件)     2     (build) by scientists at the University of Exeter in Britain. Together with ImageJ, a popular piece of software for     3     (science)pictures, it can turn many images into animal vision. This means people can check out the pictures     4     appear in the brains of animals such as insects, birds, and fish.

The way we see our world depends on how our eyes deal     5     light. Human eyes have three types of photoreceptors(感光细胞), and this makes us see the     6     (color) of red, green, and blue. Animals, however, might see it     7     (different). A cat’s vision is similar to that of     8     human who is color-blind, while bees can see ultraviolet(紫外线)light, easily finding patterns on flowers that show them the way to honey.

As of now, the Mica Toolbox has already been used in many research projects,     9     (look) at, for example, how animals hide     10     (they). You can download the software from researcher Jolyo n Trosclanko’s website.