“What is potential?” you may ask. Usually, potential     1    (be) your natural ability that can be developed when you try hard enough. The path leads to     2    world full of challenges: a new environment, new knowledge, new ways of     3     (think). However, for those of you with a positive mind, opportunity     4     (lie) in each challenge. When you rise to the challenges, you will have the chance to acquire great knowledge, and enjoy personal     5     (grow).

【推荐3】Through a series of experiments, an American scientist has gained an understanding of the social structure of ant societies. The ants     1     (examine) by scientists are the only creatures other than man to have given up hunting and collecting for a completely agricultural way of life. In their underground nests they plant gardens on soils made from finely cut leaves. This is a complex     2     (operate) requiring considerable division of labor. The workers of this type of ant can     3     (divide) into four groups according to size.     4     of the groups performs a particular set of jobs.

The making and care of the garden and the nursing of the young ants are done by the smallest workers. Slightly larger workers are responsible     5    cutting leaves to make them suitable for use in the gardens and for cleaning the nest.     6     third group of still larger ants do the construction work and collect fresh leaves from outside the nest. The     7     (large) are the soldier ants, whose duty is to defend the nest.

    8     (find) out how good the various size groups are at different tasks, the scientist measured the amount of work done by the ants against the amount of energy they used. He examined first the gathering and carrying of leaves. He selected one of the size groups and then measured     9    efficiently these ants could find leaves and run back to the nest. Then he repeated the experiment for each of the other size groups.     10    this way he could see whether any group could do the job more efficiently than the group normally undertaking it.

The World Health Organization (WHO)     1     (include) game addiction in the latest International Classification of Diseases on Nov. 28,2017.

It is the first time for WHO to include the addiction in the global information standard.           2    the standards have not been officially published, game addiction is already a social issue that involves an    3    (increase) number of adolescents and even adults.

“All addictive behaviors can     4    (consider)as addiction diseases from a professional perspective,” said Huang Yueqin, director of the Institute of Mental Health, Peking University Sixth Hospital. Yuan Yonggui, director of Zhongda Hospital’s psychiatry department, said that game addiction is similar     5    certain mental disorders caused by damage to the area of the brain,     6     is responsible for the reward system.

A study by a university in the United Kingdom shows that game addiction might not be a chronic condition and it is the escape from reality     7     attracts addicts.Most games can be very rewarding,     8    (regard) of how they are played, and this is    9    (especial) important for teenagers. Not only do they get a sense of control, but also a sense of     10     (achieve) and belonging.

With a popular online comic strip （连环画），overseas Chinese artist Cao Siyu     1    （ enjoyable）sets about deconstructing stereotypes （成见）and cultural misunderstandings betweenEast and West.

After she encountered many misunderstandings and came face to face with stereotypical views about China, Cao was inspired to create Tiny Eyes Comics, an internet-based cartoon strip    2     (illustrate) the big world through tiny Chinese eyes”. Since her first illustration in late 2016, Cao followers     3     (post） more than 300 comics to her Instagram account,    4    has attracted about 41, 000 followers.

Italian magazine Grazia says ： " Her simple sketches have played    5    big part in making iteasier to understand Chinese culture."One of her comics shows the cultural     6    ( difference) behind the debate about usage of masks, which has been a divisive topic throughout the pandemic. To wear or not to wear, that is the question that has led to     7     ( expect) controversy and,     8    .some cases, even physical conflict, in some parts of the world. In the strip she explains that Chinese people wear masks     9    ( prevent) infection, as well as avoid passing the virus to others.

Many foreign readers say they find her illustrations enlightening, helping them to understand China, while Chinese immigrants have felt understood, according to Cao. This feedback and    10    (connect) with her readers has been "the biggest motivation"^， for her to keep creating.