It's time to reconsider food. Around the globe, food problems threaten wildlife, wild places and the planet itself. Today, 7. 3 billion people consume 1. 6 times     1     the earth's natural resources can supply. By 2050, the world's population     2       (reach) 9 billion and the demand for food will double.

So how do we produce more food for more people without     3     (expand) the land and water already in use? We can't double the amount of food.       4     (fortunate), we don't have to—we just have to double the amount of food available now instead.       5     short, we must freeze the footprint of food.

In the near- term, food production is enough to provide for all, but it doesn't reach everyone who needs it. About 1. 3 billion tons of food     6     (waste) each year—four times the amount     7     (need) to feed the more than 800 million people who are     8     (hunger) .

By improving efficiency and productivity while reducing waste and shifting consumption     9     (pattern), we can produce enough food for everyone by 2050 on roughly     10     same amount of land we use now.

Nowadays the virtual choir is popular with people.They have the opportunity     1     (sing) together with hundreds of other people.Anyone can take part in a virtual choir from anywhere—all you need is a video camera and     2     Internet connection. They record themselves when     3     (perform) alone on video.These videos     4     (upload) onto the Internet, and then put together into one video.The virtual choir has proved to be a positive influence on the lives of many people.Eric Whitacre, the creator of the virtual choir，fell in love     5     music in the university.In 1997, he received a master’s degree in musical composition.Over the next 10 years, Whitacre’s original compositions began to become popular.This led to the    6     (create) of the virtual choir.In 2009, Whitacre received a video of a girl     7     was singing one of his works.     8     (inspire), he founded his first virtual choir. Since then, the virtual choir     9     (become) a worldwide phenomenon. The virtual choir is making the world a     10     (good) place.

Some people are great at remembering faces. While, there is evidence    1     for some people, remembering a face can be difficult. Even for others, remembering a face may be impossible. Such people have a condition     2     (call) “face blindness”. Its actual name is Developmental Prosopagnosia, or DP     3     short.

Experts say DP can differ greatly from patient to patient. In less severe cases, people are unable to describe the face of someone they have just met. In severe cases, people cannot even recognize    4     (they) own children in a group photo.

Those,     5     have DP, show no clear signs. Take Dacia for example. If you met her, you probably wouldn’t know that she suffered brain damage as a child. There would be no sign of it until you meet her     6     second time. She wouldn’t remember you at all. Dacia has mostly recovered from her     7     (injure). But now, she suffers form face blindness.

Once face blindness     8     (think) to be very rare. But recent     9     (study) have shown that it might be more common than experts thought. The study on face blindness will not directly lead to any treatments. However, it could lead to a much     10     (deep) understanding of how we all remember the world around us.

Several countries in Asia celebrate the Lunar New Year in their own way. But dragon and lion dances in Chinatowns all over the world have helped to make China's New Year the most famous. These days growing     1     （number）of people who are not of Chinese origin are joining in. In Tokyo window cleaners dress up like the animals of the Chinese shengxiao. America，Canada and New Zealand published memorial stamps for the year of the Rooster. In 2016，New York City made the Lunar New Year     2     school holiday for the first time.

The spread of the Spring Festival is     3    （part）due to recent immigration from China:about 10million Chinese people     4    （move）abroad since 1978，many of     5     are far richer than earlier waves of immigrants.

Aware     6     China's growing economic and political influence，foreign leaders have noticed the occasion. Britain's prime minister，Theresa May，gave a video address，a tradition     7     （start）in 2014 by her predecessor（前任）. The World Economic Forum in Davos in 2017 was held a week earlier than usual     8    （avoid）conflicting with China's New Year.

China hopes the festival will promote     9     （it）cultural soft power abroad. It may give the Chinese people     10     （satisfy）to see foreigners enjoy such festivities.

As to the topic “The Internet helps or harms friendships”,different people have different     1     (opinion). Robert thinks friends should focus more     2     face-to-face communication and less on online communication. Firstly, talking online is no replacement for face-to-face contact. Communication through     3     screen makes it more difficult for people     4     (develop) important social skills     5     enable us to develop lifelong friendships. Secondly, the Internet can make people self-centred because they are only     6     (concern) with their online popularity rather than rewarding friendships. Thirdly, online relationships are not always honest and can be dangerous for people who are easily     7     (influence) or too trusting. However, Cathy thinks otherwise. She thinks the Internet makes communication convenient and interesting. There     8     (be) many online tools you can use to be     9     (create). What is     10     (amaze) is that both of them think the Internet brings people closer.

Nowadays, more and more parents pay great attention to their children. However, we find     1     common that parents and children lack communication.

More than one reason contributes    2    the problem.

To begin with,the reason why parents spend    3    (little) time with their children is that the heavier social pressure often makes children    4     (ignore) by them. The second, although parents want to talk with their children, some of them don’t know much about the skills in communication or the necessary knowledge of education, which will have a big effect     5     communication. However, the most important reason may be the    6    (tradition) ideas of authority (权威) most parents have. Thus, when     7    (face) the children,parents are not     8     (like) to communicate with them as friends.

To sum up, the solution concerning the problem    9     (be) to diminish (减小) the gap between parents and children. Therefore, in order to make a better atmosphere     10     the children grow up, the parents should ensure the stability (稳定) of the family and act as good friends to the children.

A lot of people define success as becoming     1     millionaire. It     2     (take) them lots of time and energy to dream     3     ways of getting rich and the things they will do once they become rich. In reality, some     4     (millionaire) still worry about money after they achieve their goals and get rich. If they want to continue their     5     (wealth) life, they have to work hard     6     (make) money to ensure the sense of success     7     (achieve). It is believed by most people that they will be free of worries and live     8     (comfortable) after earning enough money. However, few people feel they     9     (earn) enough money. There are other forms of success in our lives     10     it is not how much money you have but the true meaning of life that defines success.

Unluckily, the farmers have suffered a heavy drought this year. They have to     1     a living. They are     2     the bad weather for a better harvest. Anyway, they are     3     increase their income. However, the financial crisis adds to their difficulties. As a result, they have to face the     4     existence.