The video spread quickly across the country, prompting questions about when police officers should get involved with classroom discipline. Fields was called to the classroom after the student refused to stop using her cellphone, and then she would not leave the classroom for a teacher or administrator.

　　In the days after the incident, the teacher turned her class over to a substitute and the administrator was placed on leave. Richland two officials didn't respond to an email asking about their current status. The students were allowed back in school.

　　Organizers of the protest said they plan to be at South Carolina's Statehouse next year, calling for legislators to change the law that allows police officers to arrest students for misbehaving at schools. Richland County Sheriff Leon Lott blamed that law for escalating the situation. "Let's find a way where we don't saddle students with arrest records," said Efia Nwangaza from the Malcom X Center for Self Determination. "Let's get ahead of the schoolhouse-to-jailhouse train in South Carolina."

　　24. What are the teens charged with

　　A. Playing cellphones in class B. Disobeying the teacher

　　C. Disturbing schools D. Fighting with the police officer

　　25. What is Don Johnson's attitude towards the case

　　A. Indifferent B. Ambiguous C. Subjective D. Cautious

　　26. According to the passage, people are now concerned about the following except_____.

　　A. whether the incident reflects a racial issue

　　B. when police officers should get involved with classroom discipline

　　C. whether students can play cellphones in class

　　D. whether the law that allows police officers to arrest students for misbehaving at schools should be changed

　　27. Which of the following could be the best title for the passage

　　A. Police officer fired for tossing student

　　B. Black parents protest charge for teen tossed from desk

　　C. Charged teens allowed back in school

　　D. Violence at school

　　C

　　A study of a million UK women, published today in The Lancet, has shown that happiness itself has no direct effect on mortality, and that the widespread but mistaken belief that unhappiness and stress directly cause ill health came from studies that had simply confused cause and effect. Life-threatening poor health can cause unhappiness, and for this reason unhappiness is associated with increased mortality. In addition, smokers tend to be unhappier than non-smokers. However, after taking account of previous ill health, smoking, and other lifestyle and socio-economic factors, the investigators found that unhappiness itself was no longer associated with increased mortality.

　　The lead author, Dr Bette Liu, now at the University of New South Wales, Australia said: "Illness makes you unhappy, but unhappiness itself doesn't make you ill. We found no direct effect of unhappiness or stress on mortality, even in a ten-year study of a million women."

　　As in other studies, unhappiness was associated with deprivation, smoking, lack of exercise, and not living with a partner. The strongest associations, however, were that the women who were already in poor health tended to say that they were unhappy, stressed, not in control, and not relaxed.

　　The main analyses included 700 000 women, average age 59 years, and over the next 10 years these women were followed by electronic record linkage for mortality, during which time 30 000 of the women died.

　　After allowing for any differences already present in health and lifestyle, the overall death rate among those who were unhappy was the same as the death rate among those who were generally happy. The study is so large that it rules out unhappiness being a direct cause of any material increase in overall mortality in women.

　　This was true for overall mortality, for cancer mortality, and for heart disease mortality, and it was true for stress as well as for unhappiness.

　　28. The word “mortality” in the passage means .

　　A. richness B. relaxation C. death D. morality

　　29. According to the passage, which of the following statements is true?

　　A. Unhappiness will definitely make a person ill.

　　B. Unhappiness doesn’t necessarily make you ill.

　　C. Unhappiness is not associated with lack of exercise.

　　D. The death rate among those unhappy people is greater.

　　30. It’s wrongly believed that ________.

　　A. unhappiness itself is not associated with increased mortality

　　B. there is no direct link between unhappiness and mortality

　　C. ill health directly causes unhappiness and stress

　　D. ill health directly results from unhappiness and stress

　　31. The writer’s attitude towards the result of the study is __________.

　　A. disappointing B. indifferent C. subjective D. objective

　　D

　　A full stop is used at the end of an idea or thought, and is an important rule in proper grammar. But text messages are changing the rules, as a new study finds digital messages ending with one aren't sincere. The results suggest skipping punctuation altogether, as it indicates you are answering naturally and heartfelt.

　　Binghamton University’s Harpur College observed 126 students, who read a series of messages displayed as texts on a screen or handwritten notes on loose-leaf paper(活页纸). In the 16 experimental exchanges, the sender’s message contained a statement followed by an invitation phrased as a question such as, “Dave gave me his extra ticket. Wanna come?” The receiver then gave a one-word response like “Okay”, “Sure”, “Yeah” or “Yup”. Half of the participants’ responses were with a full stop and the other half did not use it. Based on the responses, text messages that ended with a full stop were rated less sincere than those that did not end with one. The students who read the notes on the paper reported that full stop or not, they felt the message was sincere. These results suggest that punctuation can misconstrue or influence the meaning of text messages. The study concludes, “ not so much that the full stop is used to convey a lack of sincerity in text messages, but that punctuation is one of the cues(提示) used by senders, and understood by receivers, to convey practical and social information. ”

　　“Texting is lacking many of the social cues used in actual face-to-face conversations”, said Celia Klin, associate professor of psychology at Binghamton University’s Harpur College. “When speaking, people easily convey social and emotional information with eye gaze, facial expressions, tone of voice, pauses, and so on. People obviously can't use these mechanisms when they are texting. Thus, it makes sense that texters rely on what they have available to them -- emoticons, deliberate misspellings that mimic speech sounds(拟声) and, according to our data, punctuation. ”

　　Recently, Klin’s team conducted a follow-up study and found that text response with an exclamation mark(感叹号) is interpreted as more sincere. “That’s not surprising, but it broadens our claim,”said Klin. “Punctuation is used and understood by texters to convey emotions and other social and practical information. Given that people are wonderfully good at communicating complex information in conversations, it’s not surprising that as texting evolves, people are finding ways to convey the same types of information in their texts. ”

　　32. According to a new study in the first paragraph, digital messages with punctuation indicate you are ______.

　　A. impolite B. insincere C. heartfelt D. natural

　　33. The underlined sentence in the passage means that ______.

　　A. the full stop conveys a lack of sincerity in text messages

　　B. to show sincerity, people shouldn’t use punctuation in text messages

　　C. punctuation can’t influence the meaning of text messages

　　D. punctuation actually conveys practical and social information in a way

　　34. Compared with face-to-face conversations, which of the following can text messages rely on to convey their meaning?

　　A. Eye contact B. Tone of voice C. Emoticons D. Gestures

　　35. Which of the following agrees with Celia Klin’s opinion?

　　A. Conversations rely on the same expression way as text messages.

　　B. Texters may find more ways available to convey the same information.

　　C. Text response with an exclamation mark sounds more insincere.

　　D. Punctuation is only used to convey emotions.