There are many commonly held beliefs about eye glasses and eyesight that are not proven facts. For instance, some people believe that wearing glasses too soon weakens the eyes. But there is no evidence to show that the structure of eyes is changed by wearing glasses at a young age. Wearing the wrong glasses, however, can prove harmful. Studies show that for adults there is no danger, but children can develop loss of vision if they have glasses inappropriate for their eyes. We have all heard some of the common myths about how eyesight gets bad. Most people believe that reading in dim light causes poor eyesight, but that is untrue. Too little light makes the eyes work harder, so they do get tired and strained. Eyestrain also results from reading a lot, reading in bed, and watching too much television. However, although eyestrain may cause some pain or headaches, it does not permanently damage eyesight. Another myth about eyes is that they can be replaced, or transferred from one person to another. They are close to one million nerve fibers that connect the eyeball to the brain, so it is impossible to attach them all in a new person. Only certain parts of the eye can be replaced. But if we keep clearing up the myths and learning more about the eyes, some day a full transplant may be possible. If an adult wears inappropriate glasses, _ . A) his eyes will be weakened B) he will suffer a lot from the loss of vision C) it will make no difference to his eyes D) the structure of his eyes will be changed
C
(Question)
Zuhur Yasin has never been to the US, but she holds a bachelor's degree from an American university. Part of Yasin's studies in Somaliland were spent in a special classroom, lined with rows of computers equipped with webcams and microphones. The 29-year-old watched videos and took part in live virtual classes at Indiana University as part of her journalism programme at the University of Hargeisa."We had discussions and shared any challenges or questions," she says. The African Virtual University(AVU), an intergovernmental organization, connected Yasin with Indiana University. The AVU says it has used virtual learning to train 43, 000 students since its creation in 1997. Professors use programmes and apps including Skype and WhatsApp to communicate with students, but classes are taught using special software. The AVU is considering plans to make lectures accessible on mobile phones. Like Yasin, many students in sub-Saharan Africa are looking for opportunities to attend university. In 2008, the region had the lowest university attendance in the world, with just 6% of secondary school-leavers advancing to higher education, according to the UN's Educational, Scientific and Cultural Organization. In May, the African Union(AU) opened the e-Learning Africa Conference on ICT for development, education and training at its headquarters in Addis Ababa. Rebecca Stromeyer, the founder of e-Learning Africa, says, "Now it is the time when technology can really help to protect the progress many African countries have made in education. If the right decisions are made now, they will help to achieve long-term economic growth." Experts say online learning tools can connect African students to massive open online courses (Mooc,) such as Coursera, an education platform that provides free virtual education from some of the world's top universities. How did Yasin obtain a bachelor's degree from an American University? A) By teaching herself at home. B) By employing a famous coach from America. C) By virtual learning provided by the AVU. D) By her further education at the University of Hargeisa.
(Answer)
C
Ques: Why do 33% of the households in the USA have cats? And how do you explain why there are 16 million more pet cats than dogs? Yes, kittens are adorable .Yes, they can grow up to be good mousers and are very entertaining to watch.And yes, cats are independent and don't require as much care as dogs.But research shows cats can also be caretakers for us and our families, improve our health and teach us and our children to be kinder, gentler souls. Theodora Wesselman is 94 and has lived the past two years with her elderly cat, Cleo, at TigerPlace, a retirement community in Columbia, Mo.Their enduring friendship is a classic example of how humans and animals can become family and look out for each other. Wesselman visits other residents, and her children stop by, but Cleo is her best friend, she says.They've been together nearly 21 years. "She sleeps on her own pillow right beside mine," Wesselman says."In the morning, she pecks on my cheek to wake me up.It's really sweet.I pet her, tell her I love her and take her to the kitchen to prepare her food." Research shows that being able to care for a pet improves our morale (;), helps validate us and encourages us to take care of ourselves, says Rebecca Johnson, director of the University of Missouri's Research Center for Human-Animal Interaction.The body of research is leading more retirement communities and universities _ . Why does the author take 94-year-old Theodora Wesselman as an example in the passage? A) To show that the elderly like Theodora Wesselman in the USA have pet cats. B) To suggest to what degree humans and pet cats can be caretakers for each other. C) Because Theodora Wesselman has been living with a pet cat for the past two years. D) Because Theodora Wesselman pets her cat Cleo and tells her she loves her.
Ans: B
Ques: Growers around the world are using new methods to grow grapes to make wine. They use natural and organic methods to control harmful insects and weeds instead of using chemicals. Now, a winery in Canada has adopted a natural way to control its grapevines .The Featherstone Winery is in southern Ontario. The grapevines, like other plants, need to be cut every year. Cutting grapevines must be done very carefully. Only a targeted area of leaves is removed from the lower part of the vines to help the grapes grow better. But at the Featherstone Winery, no man or machine does the cutting. Instead, the job is done by 40 little wooly lambs.www.zxxk.com David Johnson owns the vineyard. He says he learned about using lambs while visiting wineries in New Zealand. The young lambs are perfectly designed to do the job. They eat the grape leaves on the lower parts of the vine. But they are not tall enough to reach the grapes. They only weigh about 22 kilograms, so they do not beat down the soil. And their waste makes good organic fertilizer. In addition, using the lambs costs much less than hiring workers to cut the vines for seven weeks in summer. And when the cutting is done in August, the lambs become tasty dishes. Mr Johnson says he had a difficult time finding enough lambs to do the job. There are about 50 million lambs in New Zealand. But there are not nearly as many in Ontario. Also, some organic pesticides are harmful to lambs. And the lambs must be watched to make sure they do not eat too much of the grapevines. David Johnson says the lambs help him carry out his environmental ideas about farming. They are lovely and peaceful and he likes having them in his vineyard. People visiting the vineyard also enjoy watching the lambs do their job. In order to help the grapes grow better, growers _ . A) only have to remove the dead leaves B) need to remove a specific area of leaves C) shouldn't remove any part of the plants D) should let little lambs do the cutting
Ans:
B