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根据题目要求完成下列任务，用中文作答。下面是一段初中英语课堂实录片段。阅读后回答下列四个问题：教学片段：Teacher：Hell0，everyone，today we’re going to learn the Present Perfect．What is the Pres-ent PerfectThe Present Perfect is a grammatical combination of the present tense and the perfect as-pect，used to express a past event that has present consequences．For example：I have already finished my homework．She has worked out a plan．As you can see．the Present Perfect is made up of two parts：have+past principle(done)…(Then the teacher began to illustrate different usages of the Present Perfect．) 该教学片段采用什么方法呈现语法项目(6分)

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Cities "Worse to Live in Than 20 Years Ago"One thousand people were surveyed about a range of issues which affect cities, and the remarkable findings show that life in today’s mega-cities is so stressful that at least two-thirds of those currently living in big cities would like to relocate to the countryside or a small town. The stress of the getting from A to B in big cities is at the top of the list of problems. For many people, the daily commute (通勤) to work is a source of frustration. 40% of the people in the survey have suffered from road rage while stuck in traffic on the way to work. The cost of public transport is also a serious problem. Many people think the price of underground and bus travel is too high and that they have to devote more than 10% of their salary to transport costs. The general cost of living in cities is another problem. The high property prices in most big cities put buying a property out of reach of most first-time buyers. Many young people are priced out of the housing market, and have to take in lodgers to make ends meet, or rent over-priced flats miles away from the city centre. In London, for instance, the price of buying even a one-bedroom flat is so prohibitive that many have given up even considering putting money aside for a deposit. Another issue facing people who live in cities is rising crime. Crime rates have rocketed in many big cities, and many say there are several dangerous no-go areas in their city. Fear of crime is on the increase— street crimes, such as mugging and assault, are now very common—and many are afraid of going out at night alone. Many were also concerned by the lack of green spaces and play facilities for children. Most major conurbations (有卫星城的大都市) surveyed have a far smaller number of parks and gardens than a generation ago. Planning permission seems to have been given for an ever-greater number of supermarkets, office developments and apartments on sites where there were previously green spaces. Many of the respondents in the survey said they felt stressed and suffocated (窒息) in the city, a problem which is compounded by pollution. And finally, the majority of people in the survey were fed up with the constant noise pollution—the roar of traffic, the sound of loud music blaring (发刺耳声) out of a neighbour’s window, and the constant sound of activity. It is not surprising, then, that the levels of stress-related illnesses among people who live in cities are higher than ever before. Big cities, once a mecca (朝拜的地方) for ambitious people seeking fame and fortune, are now less and less popular among people of all ages. Perhaps the 21 st century is set to be the century of the small town and the countryside. The crime rate has remained stable in recent years.

A. Right
B. Wrong
C. Not mentioned

请在“答题”菜单下选择相应命令，并按照题目要求完成下面的操作，具体要求如下。下存在一个数据库文件“samp3.accdb”，里面已经设计好表对象“tStud”、查询对象“qStud”、窗体对象“fStud”和子窗体对象“fDetail”，同时还设计出以“qStud”为数据源的报表对象“rStud”。请在此基础上按照以下要求补充“fStud”窗体和“rStud”报表的设计。在报表的报表页眉节区位置添加一个标签控件，其名称为“bTitle”，标题显示为“团员基本信息表”；将名称为“tSex”的文本框控件的输出内容设置为“性别”字段值。在报表页脚节区添加一个计算控件，其名称为“tAvg”，设置相关属性，输出学生的平均年龄。

请在“答题”菜单下选择相应命令，并按照题目要求完成下面的操作，具体要求如下。下存在一个数据库文件“samp3.accdb”，里面已经设计好表对象“tStud”、查询对象“qStud”、窗体对象“fStud”和子窗体对象“fDetail”，同时还设计出以“qStud”为数据源的报表对象“rStud”。请在此基础上按照以下要求补充“fStud”窗体和“rStud”报表的设计。在窗体加载事件中，实现重置窗体标题为标签“tTitle”的标题内容。

请在“答题”菜单下选择相应命令，并按照题目要求完成下面的操作，具体要求如下。下存在一个数据库文件“samp2.accdb”，里面已经设计好两个表对象“tTeacher1”和“tTeacher2”。试按以下要求完成设计。创建一个查询，查找年龄低于所有职工平均年龄的职工记录，并显示“编号姓名”和“联系电话”两列信息，其中“编号姓名”由“编号”与“姓名”两个字段合二为一构成，所建查询命名为“qT2”。