Today almost everyone knows computers and the Internet. If I ask you "What is the most important in your life ?" maybe you will say "Computers and the Internet." The first computer was made in 1946. It was very big but it worked slowly . Today computers are getting smaller and smaller. But they work faster and faster. What can computers do? A writer has said, "people can't live without computers today." The Internet came a little later than computers. It is about twenty-five years later than computers. But now it can be found almost everywhere. We can use it to read books, write letters, do shopping, play games or make friends. Many students like the Internet very much. They often go into the Internet as soon as they are free. They make friends on the Internet and maybe they have never seen these friends. They don't know their real names, ages, and even sex . They are so interested in making the "unreal friends" that they can't put their hearts into study. Many of them can't catch up with others on many subjects because of that. We can use computers and the Internet to learn more about the world. But at the same time, we should remember that not all the things can be done by computers and the Internet. When the computer was invented, it was _ . A) large and worked quickly1 B) small and worked C) large but worked slowly. D) small but worked quickly .
C
Last week a study of one hundred ninety-nine countries confirmed what many people may have already noticed. People around the world are getting fatter. The study found that obesity has almost doubled since 1980. Majid Ezzati, who led the research team, says the results show that obesity, high blood pressure and high blood pressure are no longer just found in wealthy nations. These are now worldwide problems. The study appeared shows that in 2008, almost ten percent of men were obese. That was up from about five percent in 1980. That same year, almost eight percent of women were obese. By 2008, the rate of obesity among women was almost fourteen percent. Obesity is commonly measured by body mass index , or BMI. This is a measure of a person's weight in relation to height. A person with a BMI of twenty-five to twenty-nine is considered overweight. The World Health Organization defines obesity as a body mass index of thirty or more. Pacific island nations have an average BMI of around thirty-five -- the highest in the world. But the study found that the United States had the single highest average among wealthy countries. Men and women had an average BMI of over twenty-eight. New Zealand was next. Japan had the lowest, at about twenty-two for women and twenty-four for men. The report had some good news, however, about high blood pressure. The percentage of people with this major cause of heart attacks and strokes has fallen since 1980. Dr. Ezzati credits improved testing and treatment in wealthy countries. He says a decrease in the use of salt and unhealthful fats probably also helped. In the United States, new guidelines urge Americans to reduce salt, sugar and fatty meats and to eat more fish and whole grains. People are being urged to choose water over sugared drinks and to eat more fruits and vegetables. But whatever they eat, Americans are being urged to follow new advice from the government: eat less. According to the World Health Organization, a person is considered obese if he / she has a BMI of over _ . A) twenty-five B) twenty-nine C) twenty-two D) thirty
D
I am an English dictionary. I can still remember the day my ex-owner bought me. He had stood in front of the shelf for around half an hour before finally picking me. Originally, he chose my neighbor. But because she had some ink on the cover, he put her down and chose me instead. I may sound arrogant . But please forgive me. I am so proud of my vocabulary. With 100,000 entries and 300,000 examples, I think no scholar can be more knowledgeable than me. My only weakness is that I can't speak. But that is not my fault. I was not designed to speak in the first place. My ex-owner was supposed to read the phonetic symbols clearly printed beside each word, which were also my selling point. I should have been respected but have ended up lying next to a piece of used toilet paper inside the rubbish bin. It is all because of the electronic dictionary. He is the bad guy because he takes advantage of my one weakness. And I just don't understand why he can be so slim. He also has about 100,000entries but 450,000 examples! But I know this was not the reason why my ex-owner was attracted, for he was not a very diligent student and seldom read the examples listed. The main reason was that the bad guy had so many games in him. My ex-owner always pretended to be working hard while actually he was playing games. My ex-owner put me on his bookshelf because of my awesome English name "Advanced English Dictionary". He wanted people to think that he was an advanced learner. I wanted to tell him that it would be better if he hid the comic books standing next to me. But, you know, I can't speak. I stood there for years. I was so bored. So I talked to the comic book next to me. Under normal circumstances, I wouldn't have talked to him because I was educated and he was not. But who else could I choose? He told me that my ex-owner had read him once only and then put him there. I was upset because he had never read me from page one to page 1,000. Was I not a better book than the comic book? I wanted to challenge his honesty but... The dictionary thinks that its ex-owner put it on the bookshelf because he _ . A) thought that it could match the comic books B) wanted his friends to study English C) just wanted to show off D) had to use it sometimes
C