I'm taking a test and have to guess the right answer to the question after the article. Article: As the population grows and temperatures rise, it will become more difficult to grow enough food for everyone. So, scientists are exploring the planet for plants that do not need as much water as today's crops. The Mojave Desert in the US state of California is home to some of these plants. Scientist Heather Rose Kates of the University of Florida is in that desert. She is searching along roads for a plant called coyote melon which is a kind of squash .Coyote melon may not taste good, but it can be grown in places that have little rainfall. The desert where it grows gets just 15 to 20 centimeters of rain per year, or less. Other kinds of squash need at least two and a half centimeters per week to grow. Scientists are considering combining wild coyote melon with regular squash to see if they can make a tasty vegetable that doesn't need as much water to grow. That could be useful on a planet growing warmer and more crowded every day. Andy Jarvis works at the International Center for Tropical Agriculture. He says farmers will need to produce 50 to 70 percent more food by 2050 to feed the world. So, he says, researchers are studying the wild versions of farm-grown crops. But he says there is a problem. He says many wild versions of farmed plants are disappearing. He says they are threatened and scientists have not collected their seeds for future use. Scientist Kates is part of an international effort to gather these plants and save their seeds while it is still possible. Workers are collecting wild potatoes in Argentina and wild peppers in Para-guav. The plants and seeds will be sent for storage to the Global Seed Vault in Norwav and at Kew gardens in Britain. Ms Kates spends most of her time in a laboratory. She says gathering plants has helped her understand more about them. Question: Which of the following can be inferred from the text? Options: A: All the plants' seeds need to be stored. B: Ms Kates never goes outside to do research. C: Coyote melon can be planted everywhere. D: Ms Kates benefits a lot from gathering plants
D

I'm taking a test and have to guess the right answer to the question after the article. Article: He is not just a classical music superstar. He is a global superstar. Only 27 years old, the Chinese pianist Lang Lang has become an inspiration to tens of millions around the world. Among his dazzling long list of titles, Lang considered UNICEF goodwill ambassador the most special one. "Being a UNICEF goodwill ambassador is the best decision I have made and will definitely be the best experience in my life," Lang said in a recent interview with Xinhua at the UN headquarters in New York. "I love children very much, and playing piano for them is my favorite," Lang said, beaming with delight. Named this year by Time magazine as one of the 100 World's Most Influential People, the pianist said he hoped music could "bring children happiness and enlighten their life." Three months after his nomination , Lang went to Tanzania with the UNICEF team to visit children threatened by malaria and AIDS. Although the southeastern African country's underdevelopment and harsh living conditions surprised Lang who landed the continent for the first time, he was touched by local children's passion for music. "Most of the kids had never seen a piano before," Lang said. "When I played Chopin's nocturne or waltz to them, those who were too shy to talk to me suddenly became active and began to share with me about their dreams. How amazing it is!" "Music can bring hopes to the kids and open their mind," he said. Following his visit to Africa, Lang began to organize fundraising concerts for children. Now it has become his routine to do 15 to 20 fundraising concerts every year. Except for his efforts on fundraising, Lang also established his own international music foundation last year to assist young talents to play piano. So far Lang has chosen five children from the United States and Germany, providing them with scholarships and opportunities to perform at world-class music halls, he said. In December, he will start the selection in China where he would like to "focus more on physically challenged kids, like blind kids." Question: As a UNICEF goodwill ambassador, Lang Lang's work is mainly to _ . Options: A: help children who are in great need B: hold more concerts for children in the world C: assist young talents from different countries play piano D: create more beautiful music for the people of the world
A

I'm taking a test and have to guess the right answer to the question after the article. Article: Sir John a British scientist who won last year's Nobel prize for medicine, said he had predicted at the time of his frog experiments that the successful cloning of a mammal would happen within 50 years.and that "maybe the same answer is appropriate" far the step to human cloning. Parents who lose children in accidents may be able to clone "copies" to replace them then. Although any attempt to clone an entire human would raise complex moral issues, the biologist claimed people would soon overcome their concerns if the technique became medically useful.Cloning was regarded with extreme doubts when it was first developed but became widely accepted after the birth of Louise Brown, the first "test tube baby" He said, "When my first frog experiment.s were done, an American reporter asked how long it will be before these things can he done in mammals or humans I said, 'Well, it could be anywhere between 10 years and 100 years-how about 50 year ?' It turned out that it wasn't far off the mark as far as Dolly was concerned.Maybe the same answer is appropriate." Sir John added that cloning a human being effectively means making an identical twin, and doctors would therefore simply be "copying what nature has already produced" The average vote on allowing parents of deceased children, who are no longer fertile , to create another using the mother's eggs and skin cells from the first child, thinking the technique was safe and effective, is 60 per cent in favor.The reasons for "no" are usually that the new child would feel they were some sort of a replacement for something. . Question: Sir John predicted the human cloning would be a reality in _ at most. Options: A: 100 yea B: 60 years C: 50 years D: 10 years
C