请阅读Passage l。完成第21—25小题。Passage 1It's one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it and run away in fear. This has always been thought to be something that is hard-wired into a mouse s brain.But now Wendy Ingram, a graduate student at the University of California, Berkeley, has challenged this common sense. She has found a way to"cure" mice of their inborn fear of cats by infecting them with a parasite, reported the science journal Nature.The parasite, called Toxoplasma gondii, might sound unfamiliar to you, but the shocking fact is that up to one-third of people around the world are infected by it. This parasite can cause different diseases among humans, especially pregnant women--it is linked to blindness and the death of unborn babies.However, the parasite's effects on mice are unique. Ingram and her team measured how mice reacted to a cat's urine(尿) before and after it was infected by the parasite. They noted that normal mice stayed far away from the urine while mice that were infected with the parasite walked freely around the test area.But that's not all. The parasite was found to be more powerful than originally thought—even after researchers cured the mice of the infection. They no longer reacted with fear to a cat's smell,which could indicate that the infection has caused a permanent change in mice's brains.Why does a parasite change a mouse's brain instead of making it sick like it does to humans?The answer lies in evolution."It's exciting scary to know how a parasite can manipulate a mouse's brain this way," Ingram said. But she also finds it inspiring."Typically if you have a bacterial infection, you go to a doctor and take antibiotics and the infection is cleared and you expect all the symptoms to also go away."She said, but this study has proven that wrong."This may have huge implications for infectious disease medicine."Which of the following statements is true according to the passage?查看材料
A．Toxoplasma gondii causes people strange and deadly diseases.B．With certain infection the infectious disease cannot be cured completely.C．Human beings infected by toxoplasma gondii will have permanent brain damage.D．Toxoplasma gondii is harmful to human beings, but it does no harm to mice.

在语法教学中，语法练习的形式有哪几种(10分)?请对任意两种练习形式进行举例说明(10分)。

请阅读Passage2，完成第小题。Passage 2Results showed that at least a tenth of the Harvard first-year undergraduates polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework. An anonymous survey by Harvard's newspaper has revealed a surprising pattern of academic dishonesty among students entering the US universities.The survey by The Harvard Crimson was emailed to the incoming first year undergraduates;1,600 students responded. Results showed that at least a tenth of the students polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework.Athletes were apparently the most prone to cheating. 20 percent of students who played a university sport admitted to cheating on an exam compared to 9 percent of students who did not.The survey also revealed that men were not only more likely to cheat but were also more likely to admit to it.The results, compared to a previous survey done on the class of 2013, suggested that cheating may be becoming more commonplace. Of the outgoing seniors only 7 percent admitted to cheating in an exam and another 7 percent said they had been dishonest on a take-home test. 32 percent of the seniors said they had cheated on homework during their undergraduate years..The surveys come in the wake of a cheating scandal at the university which saw 120 students investigated for sharing answers on an exam in 2012. One recent graduate stated: "Cheating was commonplace when I was at Harvard, especially with students in their first year or two. I would say as many as 60 per cent of students took notes into some exams. No one really cared the faculty,well some of them at least, seemed to recognize and yet ignore the problem."In an email to NBC News, Jeff Neal, a Harvard representative, explained that a committee,made up of faculty, staff and students had been established to tackle cheating, which "is a national problem in American education".He added: "While the vast majority of Harvard and other students do their work honestly,beginning this year Harvard College has implemented a new, more robust strategy of communicating with all students, particularly first-year students, about the importance--and the ways to achieve--academic integrity."In a rebuff to critics who say university has become little more than an expensive party, 84 per cent of the responding undergraduates fully expected to prioritize their academics over extracurricular activities, sport, employment and their social lives. Not a single student put academics at the bottom of their list. Not content with confining themselves to their degree subject,59 percent of incoming students expressed a desire to pursue a secondary field of study, and 36percent hoped to learn a language.Which of the following is not the measure taken by Harvard University?查看材料
A．The university has set up a committee made up of faculty, staff and students.B．Communicate with students about the importance of academic honesty.C．Punish the students who cheat and if cheat, with no diploma.D．Communicate with students about how to achieve academic integrity.

A teacher showed students an example and explained the usage of past perfect tense, and asked students to list ten"past perfect tense" sentences by imitating that example. What's the teacher's grammar teaching method?
A．Consolidation.B．Presentation.C．Deduction.D．Induction.

请阅读Passage2，完成第小题。Passage 2Results showed that at least a tenth of the Harvard first-year undergraduates polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework. An anonymous survey by Harvard's newspaper has revealed a surprising pattern of academic dishonesty among students entering the US universities.The survey by The Harvard Crimson was emailed to the incoming first year undergraduates;1,600 students responded. Results showed that at least a tenth of the students polled admitted to having cheated on an exam prior to starting at the university, while almost half admitted to cheating on their homework.Athletes were apparently the most prone to cheating. 20 percent of students who played a university sport admitted to cheating on an exam compared to 9 percent of students who did not.The survey also revealed that men were not only more likely to cheat but were also more likely to admit to it.The results, compared to a previous survey done on the class of 2013, suggested that cheating may be becoming more commonplace. Of the outgoing seniors only 7 percent admitted to cheating in an exam and another 7 percent said they had been dishonest on a take-home test. 32 percent of the seniors said they had cheated on homework during their undergraduate years..The surveys come in the wake of a cheating scandal at the university which saw 120 students investigated for sharing answers on an exam in 2012. One recent graduate stated: "Cheating was commonplace when I was at Harvard, especially with students in their first year or two. I would say as many as 60 per cent of students took notes into some exams. No one really cared the faculty,well some of them at least, seemed to recognize and yet ignore the problem."In an email to NBC News, Jeff Neal, a Harvard representative, explained that a committee,made up of faculty, staff and students had been established to tackle cheating, which "is a national problem in American education".He added: "While the vast majority of Harvard and other students do their work honestly,beginning this year Harvard College has implemented a new, more robust strategy of communicating with all students, particularly first-year students, about the importance--and the ways to achieve--academic integrity."In a rebuff to critics who say university has become little more than an expensive party, 84 per cent of the responding undergraduates fully expected to prioritize their academics over extracurricular activities, sport, employment and their social lives. Not a single student put academics at the bottom of their list. Not content with confining themselves to their degree subject,59 percent of incoming students expressed a desire to pursue a secondary field of study, and 36percent hoped to learn a language.What is the tone of the author according to the passage?查看材料
A．Subjective.B．Exaggerated.C．Sarcastic.D．Objective.

__________her mother started to go to the meditation class,
A．It was at about this time thatB．That was about this timeC．It was at about this time whenD．It was about this time that