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Grammar and speaking

Modals: can, could.

Summary

  • The problem in learning about modal verbs is that they have a variety of functions and meanings. Also, in terms of their meanings, they do not always behave like other verbs when past or negative forms are used.

  • The most common use of can and could is to express ability:

‘I saw a nice car for sale this weekend, but I couldn’t see the registration, so I don’t know how old it was.’ (I was not able to see it.)

‘I can’t possibly find somewhere to live and move out in a week.’ (I am not able to)

When used in this way, the modal verbs are equivalent to ‘be able to’; can refers to now and could refers to a past event.

  • An exception to this rule is when a successfully completed action is referred to in the past:

‘The inspector could meet the head of the company’ (does not mean was able to meet’, because could is used for present/future probability).

However, the negative form is not affected in this way:

‘The inspector couldn’t meet the head of the company.’

  • Can’t also has a very specific use when referring to things which are logically, impossible: (looking at a total on a calculator). ‘That can’t be right. I think I multiplied when I should have divided’

  • Could is used to speculate about probability: ‘I could be entitled to a fax rebate.’

  • Can is never used to speculate about probability unless there is an underlying question about ability: ‘How can they be so rich?

  • Can’t occurs in a number of fixed or semi-fixed expressions. The past of these is formed by couldn’t and they do not have the same sense if they are used in the positive form.

  • Can and could are both used in requests. Could is used for more tentative requests, and in rather more formal contexts than can.

II. Look through the text. How possibility, capacity or ability, impossibility, probability, opinions, volition wanting are expressed?

Advanced Graduate Education Programs

The Advanced Graduate Education (AGE) programs at the Harvard School of Dental Medicine lead to a master of medical sciences (MMSc) or doctor of medical sciences (DMSc) degree, as well as a certificate in a specialty field. The School considers a research experience an integral component of learning and preparation for a career in the field. The exploration of research at Harvard permits students to participate in a world-class environment that sets the standard for basic discoveries, clinical application, and research training in dental medicine. A project and thesis are required for both the MMSc and DMSc degrees.

Advanced Graduate Education Program in Endodontics

Program director: Robert R. White. DMD

The Advanced Graduate Program in Endodontics is a three-year program leading to an MMSc degree in oral biology and a certificate in endodontics. A DMSc degree (four years) is an option for those who wish to enter academics or research.

The purpose of the program is to develop competent endodontists with an extensive background in the biological sciences, research methodology, and teaching. This broad-based education in endodontics and related phases of graduate education provides the student with a thorough preparation for careers in specialty clinical practice, research, and academics. The program is also designed to satisfy the guidelines for and encourage certification by the American Board of Endodontics. Click here for the academic year 2011-2012 Program Directory.

Clinical Experience and Course Work

Approximately 40 percent of the program involves clinical experience, which students gain through the treatment of patients at the Harvard Dental Center at HSDM. Students work under the direct supervision of either full- or part-time endodontics instructors. Expectations focus on quality and diversity of experience, which must include 200 to 225 nonsurgical procedures, 20 to 30 surgical procedures, and at least 50 recalls.

Didactic courses given by the department, HSDM, and affiliated institutions make up 30 percent of the program. Department seminars include Interdepartmental Treatment Planning, Current and Classic Literature Reviews, and Intradepartmental Case Presentations.

Research and Teaching

All advanced graduate students engage in research as an integral part of their training at HSDM. Research activities are conducted with Harvard faculty mentors at HSDM or affiliated institutions, including Children’s Hospital Boston, Massachusetts General Hospital, and the Forsyth Institute.

During the second and third years, each advanced graduate student gains teaching experience through clinical, lecture, and laboratory teaching assignments in the predoctoral endodontics curriculum.