Millions of people die of hunger in Southern Africa every year, but when prefix = st1 /Zambiawas offered thousands of tons of free maize by theUS, the government politely said no. "We don't know whether the food is safe," said Zambia's Commerce, Trade and Industry Minister Dipak Patel. His worries are shared by countries around the world that are _ aboutAmerica's genetically modified (GM) crops. Just last week, EU member nations were discussing whether or not to import GM sweet corn from theUS. Ever since people started farming, they have tried to crossbreed plants to make them stronger or better tasting. At one time, only related plants could be crossed with each other. But when GM techniques were developed in the 1970s, scientists were able to put a single gene from a living creature into an unrelated creature. This means they can make crops more productive and resistant to disease by adding genes from other species. They can also create food with special characteristics, such as "golden rice", which is enriched with vitamin A. But many people believe GM foods are a health risk. "If left to me, I would certainly not eat GM foods," said Scottish scientist Arpad Pusztai. "We are putting new things into food which haven't been eaten before. The effects on the immune system are not easy to predict." At the moment, the official argument is that GM foods "are not likely to present risks for human health". But there are still many questions to be answered as the foods are produced in different ways. Some experts believe the genetic material added to plants can transfer to humans and give damage to our bodies. Further harm could be caused by the genes from GM plants crossbreeding with naturally produced crops. Which of the following statements is NOT true about GM foods? A) It is produced from plants added genes from other species. B) GM foods can have special characteristics. C) GM foods will affect people's immune system. D) GM foods have been produced since 1970s.
C
(Question)
The sharing economy has grown in recent years to include everything from apartment' sharing to car sharing to community tool sharing. Since 2009, a new form of sharing economy has been emerging in neighborhoods throughout the US and around the world-Little Free Library. The libraries are boxes placed in neighborhoods from which residents can withdraw and deposit books. Little Free Libraries come in all shapes and sizes. Some libraries also have themes, focusing on books for children, adults, or tour guides. In 2009. Tod Bol built the first Little Free Library as a gift to his mother, who was a devoted reader. When he saw the people of his community gathering around it, exchanging conversation as well as books, he knew he wanted to take his simple idea further. "I think Little Free Libraries open the door to conversations we want to have with each other," Bol said. . Since then, his idea has become a movement, spreading from state to state and country to country. According to Little FreeLibrary.org, there are now 18,000 0f the little structures around the world, located in each of the 50 US states and 70 countries in Europe, Africa and Asia. The Internet has helped to spread Little Free Libraries. But an Atlantic article says the little, structures serve as a cure for a world of e-reader downloads . The little wooden boxes are refreshingly physical and human. For many people, the sense of discovery is Little Free Libraries' main appeal. "A girl walking home from school might pick up a graphic novel that gets her excited about reading; a man on his way to the bus stop might find a volume of poetry that changes his outlook on life," says the Atlantic article. "Every book is a potential source of inspiration " Little Free Libraries attract readers most in that _ . A) they connect strangers together B) they are located all over the world C) they are in various shapes and sizes D) they may give readers a sense of discovery
(Answer)
D
When my family moved to America from a small village in Guangdong, China, we brought not only our luggage, but also our village rules, customs and culture. One of the rules is that young people should always respect elders. Unluckily, this rule led to my very first embarrassment in the United States. I had a part-time job as a waiter in a Chinese restaurant. One time, when I was serving food to a middle-aged couple, the wife asked me how the food could be served so quickly. I told her that I had made sure they got their food quickly because I always respect the elderly. As soon as I said that, her face showed great displeasure. My manager, who happened to hear what I said, took me aside and gave me a long lecture about how sensitive Americans are and how they dislike the description "old". I then walked back to the table and apologized to the wife. After the couple heard my reason, they understood that the problem was caused by cultural differences, so they laughed and were no longer angry. In my village in China, people are proud of being old. Not so many people live to be seventy or eighty, and people who reach such an age have the most knowledge and experience. Young people always respect older people because they know they can learn from their rich experience. However, in the United States, people think "growing old" is a problem since "old" shows that a person is going to retire or that the body is not working well. Here many people try to keep themselves away from growing old by doing exercises or jogging, and women put on makeup, hoping to look young. When I told the couple in the restaurant that I respect the elderly, they got angry because this caused them to feel they had failed to stay young. I had told them something they didn't want to hear. After that, I changed the way I had been with older people. It is not that I don't respect them any more; I still respect them, but now I don't show my feelings through words. When Jack called the couple "elderly", they became[ _ . A) nervous B) satisfied C) unhappy D) excited
C