Most people have heard the sound of bees among flowers. Bees live almost everywhere in the world except in the Arctic areas. Many kinds of agriculture depend on these small, social insects. Without bees, fruit and nut growers as well as many other farmers would not have a crop. There are more than 20,000 kinds of bees. But only honey bees make enough honey for people to use. Honeybees are highly-organized social insects. They work together in a group, called a colony . Each colony lives in a hive . It contains one queen bee -- she lays all the eggs from which the members of the colony come. Each colony has only a few hundred males, called drones. The majority of all bees in a colony are workers, which are all females. Bees even have a special stomach, called a honey stomach, which is used to store sweet fluid that the bees gather from flowers. Bees also have long hairs on their body and legs. These hairs capture pollen as bees go from flower to flower. Some of the pollen is taken back to the hive. Some, however, is passed to the next flower. This is how many plants are fertilized. Pollen is the reproductive material of plants. Many important agricultural crops depend on bees for fertilization. Inside their hives, bees store sweet liquid from flowers and pollen as well. They may even gather sweet liquid from some other kinds of insects. These kinds of sweet liquid are also stored in the hive. Bees make honey through a process. They add liquid from their own mouths to sweet liquid into simple sugar. As the honey is stored, it dries. It becomes thicker and darker. Although bees are often thought of as honey makers, they provide a surprising number of products. Also, their greatest economic value is in fertilizing crops-not in making honey. The most valuable thing honeybees do for people is in _ . A) making honey B) fertilizing crops C) making flowers grow better D) producing pollen
B
There is no question that teenagers need rules, which is often not a difficult thing for parents to give. What can be more challenging is giving teenagers their freedom. It can be difficult to draw the line between the two. However, some issues cannot be changed by discussion and require firm rules. For instance, rules should be established concerning driving the family car. I will admit that I have no problem coming up with rules. To me they make life easier and they leave no room for questioning. What can be more difficult, however, is giving my teens their freedom. I guess there are really two primary reasons for this. One is that I sometimes am afraid to give them freedom. The second is that I'm not always so sure what the freedom should be. It helps that I have a husband with whom I can discuss these problems. We talk about _ , give our thoughts and then we come up with an agreement. Sometimes one of us might be more unwilling but we know that there comes a time when we really do have to learn how to let go of the reins a bit. If we try to make life have nothing but rules, we are more likely to see our teen's rebelling . They need to know that while we do have certain expectations, we also trust them to begin making their own choices and decisions. How else can they do that unless they are given the space and room to do it? It's really all about balance and I will be the first to admit that it can be a challenge to carry out. However, it is a necessary part of growing up. Yes, teens definitely need rules but they also need freedom. Which of the following is TRUE according to the text? A) Rules are difficult to make for parents. B) Rules and freedom are similarly important. C) We should give children freedom as much as possible. D) Rules are more important than freedom.
B
Q: Because phones have caused many problems, many head teachers have ordered that pupils must keep their phones switched off at school. Others have told pupils to leave them at home. However, Dr Elizabeth Hartnell-Young at the University of Nottingham believes it is time that phone bans were reassessed--because mobile phones can be a powerful learning aid, they say. "At the start of the study, even pupils were often surprised at the thought that mobile phones could be used for learning," Dr Hartnell-Young says. "After their hands-on experience, almost all pupils said they had enjoyed the project and felt more motivated. "Some teachers also had to reassess their views. "Using this technology gives them more freedom to express themselves without needing to be constantly governed." one said. Other teachers found that pupils who lacked confidence gained most from the project. However, they recognized that greater use of mobile phones in schools could prove troublesome. Increased temptation to steal phones was one worry. "I thought, well, four of these smart phones are going to end up on e-BAY tomorrow," one teacher said. A few teachers remained concerned that phones could prove a distraction for some pupils. Allowing pupils to access school emails via mobiles would also bring risks if passwords were shared, they said. Dr Hartnell-Young says that the teachers' worries are understandable. "While the eventual aim should be to cancel overall bans on phones we do not recommend immediate, whole-school change," she said. "Instead we believe that teachers, students and the wider community should work together to develop policies that will enable this powerful new learning tool to be used safely. We hope that, in future, mobile phone use will be as natural as using any other technology in school." The author wrote the passage mainly to _ . A) attract readers to care about phone bans B) explain why phone bans should be carried out C) reassess views whether phones can be used in school D) to tell us phone use will be more popular in school
A: C
Yu Pengnian is an 88-year-old real estate Chinese businessman. He amassed a fortune of $1.3 billion dollars during his career but instead of keeping the money and living like an emperor, he decided to give it all away. All of his fortune will be spent on helping poor Chinese students get a better education. And Yu isn't the only super-rich person in China who has this spirit of giving. Chen Guangbiao, a Jiangsu recycling tycoon, has given millions of dollars to charity and promises to give all of his money to charity when he dies. Yu and Chen are among the many businessmen who have become prosperous during China's economic rise. An American business magazine, Forbes, estimates that there are 117 billionaires in China and hundreds of thousands of millionaires. What sets Yu and Chen apart from the rest, though, is their tremendous generosity(,) when it comes to donating money to charity. Last week Bill Gates and Warren Buffett came to Beijing. Gates and Buffett, two of the world's richest men, are also the world's biggest philanthropists. They invited fifty of China's richest people to have dinner with them and talk about the spirit of giving. At first, only a few people accepted their invitation. It seemed some of the invited guests were afraid that Buffett and Gates were going to pressure them into giving their wealth to charity. A lot of people are angry at the billionaires who are not willing to give away their fortunes. They _ hem for being miserly and not caring about the poor and the less fortunate. But I think this criticism is wrong. A gift, any gift, should come from the heart. Instead of criticism, these reluctant billionaires should be encouraged to follow the examples of Yu Pengnian and Chen Guangbiao. Encouragement is always a better strategy than criticism. As we say in English, "You can catch more flies with honey than with vinegar." Yu Pengnian will spend all of his fortune in _ A) helping poor Chinese students get a better education B) helping the students in earthquake-stricken area C) helping his off-springs lead a rich life in the future D) achieve his aim of living like an emperor
A